CPC7691BA

CPC7691
Line Card Access Switch
INTEGRATED CIRCUITS DIVISION
Features
Description
• Improved switch dV/dt immunity of 1500V/s
• Drop-In Replacement for CPC7591
• Replaces CPC7581, and allows removal of
power-up control discrete components
• TTL logic level inputs for 3.3V logic interfaces
• Smart logic for power-up / hot-plug state control
• Small 16-pin SOIC package
• Monolithic IC reliability
• Low, matched RON
• Eliminates the need for zero-cross switching
• Flexible switch timing for transition from ringing
mode to idle/talk mode.
• Clean, bounce-free switching
• Tertiary protection consisting of integrated current
limiting, voltage clamping, and thermal shutdown for
SLIC protection
• 5V operation with power consumption < 10.5 mW
• Intelligent battery monitor
• Latched logic-level inputs, no external drive circuitry
The CPC7691 is a member of IXYS Integrated
Circuits Division’s third-generation Line Card Access
Switch (LCAS) family. This monolithic 4-pole solid
state switch, available in a 16-pin SOIC package,
provides the necessary functions to replace the
2-Form-C electromechanical ringing relay and it’s
associated snubber circuitry on traditional analog line
cards or contemporary integrated voice and data (IVD)
line cards found in Central Office (CO), Access, and
PBX equipment. Because this device contains solid
state switches for tip and ring line break and for ringing
injection/return, it requires only a +5V supply for
operation and TTL logic-level inputs for control. The
CPC7691 provides stable start-up conditioning during
system power-up and for hot plug insertion
applications. Once active, the inputs respond to
traditional TTL logic levels, enabling the CPC7691 to
be used with 3.3V-only logic.
For negative transient voltage protection the
CPC7691BA version employs SCRs to provide
voltage fold-back protection for the SLIC and
subsequent circuitry, while the CPC7691BB version
utilizes clamping diodes to the VBAT pin. For positive
transient voltage protection all versions provide
clamping diodes to the FGND pin.
Applications
•
•
•
•
•
•
•
•
•
VoIP Gateways
Central office (CO)
Digital Loop Carrier (DLC)
PBX Systems
Digitally Added Main Line (DAML)
Hybrid Fiber Coax (HFC)
Fiber in the Loop (FITL)
Pair Gain System
Channel Banks
Ordering Information
e3
Pb
Device
Description
CPC7691BA
CPC7691BATR
CPC7691BB
CPC7691BBTR
With Protection SCR, in Tubes (50/Tube)
With Protection SCR, Tape & Reel (1000/Reel)
Without Protection SCR, in Tubes (50/Tube)
Without Protection SCR, Tape & Reel (1000/Reel)
Figure 1. CPC7691 Block Diagram
+5 VDC
6 TRINGING
TLINE
Tip
3
X
7 VDD
CPC7691
SW3
2 TBAT
X
SW1
Secondary
Protection
Ring
SLIC
15 RBAT
SW2
RLINE 14
X
X
SW4
12 RRINGING
300Ω
(min.)
VBAT
VREF
1
FGND
SCR Trip Circuit
(CPC7691BA)
16
VBAT
L
A
T
C
H
Switch
Control
Logic
9
DGND
10
11
INRINGING
LATCH
8
TSD
RINGING
DS-CPC7691-R01
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1
INTEGRATED CIRCUITS DIVISION
CPC7691
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 General Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Switch Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.1 Break Switches: SW1 and SW2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.2 Ringing Return Switch: SW3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.3 Ringing Switch: SW4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Digital I/O Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8 Voltage and Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.9 Protection Circuitry Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10 Truth Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
3
3
3
3
3
4
4
5
6
7
7
8
8
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Data Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 TSD Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Under Voltage Switch Lock Out Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.2 Hot Plug and power-up Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 VBAT Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.1 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.2 Battery Voltage Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 Ringing to Talk State Switch Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.7.1 Make-Before-Break Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.7.2 Break-Before-Make Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.8 Ringing Switch Zero-Cross Current Turn Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10 Internal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10.1 Current Limiting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10.2 Diode Bridge/SCR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10.3 Thermal Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.11 External Protection Elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Package Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Tape and Reel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
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15
15
15
15
16
16
R01
INTEGRATED CIRCUITS DIVISION
CPC7691
1. Specifications
1.1 Package Pinout
1.3 Absolute Maximum Ratings
CPC7691
Parameter
7
V
Battery Supply
-
-85
V
DGND to FGND Separation
-5
+5
V
-0.3
VDD + 0.3
V
Logic input to switch output
isolation
-
320
V
-
320
V
11 LATCH
Switch open-contact
isolation (SW1, SW2, SW3)
VDD 7
10 INRINGING
Switch open-contact
isolation (SW4)
-
465
V
TSD 8
9 DGND
Operating relative humidity
16 VBAT
TBAT 2
15 RBAT
TLINE 3
14 RLINE
NC 4
13 NC
NC 5
12 RRINGING
TRINGING 6
Name
1
FGND
Fault ground.
2
TBAT
Tip lead to the SLIC.
3
TLINE
Tip lead of the line side.
4
NC
No connection.
5
NC
No connection.
Description
VDD
+5V supply.
8
TSD
Temperature shutdown pin.
9
DGND
12
Digital ground.
INRINGING Logic control input.
LATCH
Data latch enable control input.
RRINGING Ringing generator source.
13
NC
14
RLINE
Ring lead of the line side.
15
RBAT
Ring lead to the SLIC.
16
VBAT
Battery supply.
R01
5
95
%
Operating temperature
-40
+110
C
Storage temperature
-40
+150
C
Absolute maximum ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
1.4 ESD Rating
ESD Rating (Human Body Model)
TRINGING Ringing generator return.
7
11
Logic input voltage
Absolute maximum electrical ratings are at 25C.
Pin
10
Unit
-0.3
FGND 1
1.2 Pinout
6
+5V power supply (VDD)
Minimum Maximum
No connection.
1000V
1.5 General Conditions
Unless otherwise specified, minimum and maximum
values are guaranteed by production testing
requirements.
Typical values are characteristic of the device at
+25C and are the result of engineering evaluations.
They are provided for information purposes only and
are not part of the manufacturing testing requirements.
Specifications cover the operating temperature range
TA = -40C to +85C. Also, unless otherwise specified
all testing is performed with VDD = 5VDC, logic low
input voltage is 0VDC and logic high voltage is 5VDC.
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3
INTEGRATED CIRCUITS DIVISION
CPC7691
1.6 Switch Specifications
1.6.1 Break Switches: SW1 and SW2
Parameter
Test Conditions
Symbol
Minimum
Typical
Maximum
Unit
1
A
VSW1 (differential) = TLINE to TBAT
VSW2 (differential) = RLINE to RBAT
All-Off state.
Off-State
Leakage Current
+25C,
VSW (differential) = -320V to GND
VSW (differential) = +260V to -60V
0.1
+85C,
VSW (differential) = -330V to GND
VSW (differential) = +270V to -60V
ISW
-
-40C,
VSW (differential) = -310V to GND
VSW (differential) = +250V to -60V
0.3
0.1
ISW(on) = ±10 mA, ±40 mA,
RBAT and TBAT = -2V
On-Resistance
+25C
RON
+85C
-
-40C
On-Resistance
Matching
Per SW1 & SW2 On-Resistance test
conditions
14.5
-
20.5
28
10.5
-
0.15
0.8

RON
-
-
300
ISW
80
160
-
400
425
-
2.5
-
A
-
0.1
-
0.3
1
A
-
0.1
1500
2100
-
V/s

VSW (on) = ±10V
DC current limit
+25C
+85C
-40C
Dynamic current limit
(t  0.5 s)
Break switches on, all other switches
off. Apply ±1 kV 10x1000 s pulse with
appropriate protection in place.
ISW
-
mA
Logic inputs = GND
Logic input to switch
output isolation
+25C, VSW (TLINE, RLINE) = ±320V
+85C, VSW (TLINE, RLINE) = ±330V
ISW
-40C, VSW (TLINE, RLINE) = ±310V
Transient Immunity
4
100VPP Square Wave, 100Hz
(Not production tested - limits are
guaranteed by design and quality
control sampling audits.)
dV/dt
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R01
INTEGRATED CIRCUITS DIVISION
CPC7691
1.6.2 Ringing Return Switch: SW3
Parameter
Test Conditions
Symbol
Minimum
Typical
Maximum
Unit
1
A
VSW3 (differential) = TLINE to TRINGING
All-Off state.
Off-State
Leakage Current
+25C,
VSW (differential) = -320V to GND
VSW (differential) = +260V to -60V
0.1
+85C,
VSW (differential) = -330V to GND
VSW (differential) = +270V to -60V
ISW
-
-40C,
VSW (differential) = -310V to GND
VSW (differential) = +250V to -60V
0.3
0.1
ISW(on) = ±0 mA, ±10 mA
On-Resistance
+25C
RON
+85C
-
-40C
60
-
85
100
45
-

VSW (on) = ± 10V
DC current limit
+25C
ISW
+85C
-40C
Dynamic current limit
(t  0.5 s)
Ringing switches on, all other switches
off. Apply ±1 kV 10x1000 s pulse with
appropriate protection in place.
ISW
-
135
70
85
-
210
-
2.5
-
mA
-
A
1
A
-
V/s
Logic inputs = GND
Logic input to switch
output isolation
+25C, VSW (TRINGING, TLINE)= ±320V
+85C, VSW (TRINGING, TLINE)= ±330V
0.1
ISW
-
-40C, VSW (TRINGING, TLINE) = ±310V
Transient Immunity
R01
100VPP Square Wave, 100Hz
(Not production tested - limits are
guaranteed by design and quality
control sampling audits.)
0.3
0.1
dV/dt
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1500
2100
5
INTEGRATED CIRCUITS DIVISION
CPC7691
1.6.3 Ringing Switch: SW4
Parameter
Test Conditions
Symbol
Minimum
Typical
Maximum
Unit
1
A
VSW4 (differential) = RLINE to RRINGING
All-Off state.
Off-State
Leakage Current
+25C
VSW (differential) = -255V to +210V
VSW (differential) = +255V to -210V
+85C
VSW (differential) = -270V to +210V
VSW (differential) = +270V to -210V
0.05
ISW
-
-40C
VSW (differential) = -245V to +210V
VSW (differential) = +245V to -210V
0.1
0.05
On-Resistance
ISW (on) = ±70 mA, ±80 mA
RON
-
10
15

On Voltage
ISW (on) = ± 1mA
VON
-
1.5
3
V
On-State
Leakage Current
Inputs set for ringing -Measure ringing
generator current to ground.
IRINGING
-
0.1
0.25
mA
Steady-State Current*
Inputs set for ringing mode.
ISW
-
-
150
mA
Surge Current*
Ringing switches on, all other switches
off. Apply ±1 kV 10x1000 s pulse with
appropriate protection in place.
ISW
-
-
2
A
Release Current
SW4 transition from on to off.
IRINGING
-
300
-
A
1
A
-
V/s
Logic inputs = GND
Logic input to switch
output isolation
+25C, VSW (RRINGING, RLINE)= ±320V
+85C, VSW (RRINGING, RLINE)= ±330V
0.1
ISW
-
-40C, VSW (RRINGING, RLINE)= ±310V
Transient Immunity
100VPP Square Wave, 100Hz
(Not production tested - limits are
guaranteed by design and quality
control sampling audits.)
0.3
0.1
dV/dt
1500
2100
*Secondary protection and current limiting must prevent exceeding this parameter.
6
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R01
INTEGRATED CIRCUITS DIVISION
CPC7691
1.7 Digital I/O Electrical Specifications
Parameter
Test Conditions
Symbol
Minimum
Typical
Input Characteristics
Input voltage, Logic low
Input voltage falling
VIL
0.8
1.1
Input voltage, Logic high
Input voltage rising
Input leakage current,
VDD = 5.5V, VBAT = -75V, VHI = 2.4V
INRINGING, Logic high
Input leakage current,
INRINGING, Logic low
Input leakage current,
LATCH Logic high
LATCH Pull-up
Minimum Load
Input leakage current,
LATCH Logic low
Input leakage current,
TSD Logic high
Input leakage current,
TSD Logic low
1.7
2.0
Unit
V
IIH
-
0.1
1
A
VDD = 5.5V, VBAT = -75V, VIL = 0.4V
IIL
-
0.1
1
A
VDD = 4.5V, VBAT = -75V, VIH = 2.4V
IIH
7
19
-
A
VDD = 4.5V, VBAT = -75V, IIN = -10 A
Latch input transitions to logic high.
Logic = High
True
VDD = 5.5V, VBAT = -75V, VIL = 0.4V
IIL
-
46
125
A
VDD = 5.5V, VBAT = -75V, VIH = 2.4V
IIH
10
16
30
A
VDD = 5.5V, VBAT = -75V, VIL = 0.4V
IIL
10
16
30
A
VTSD_off
2.4
VDD
-
V
VTSD_on
-
0
0.4
V
Output Characteristics
Output voltage,
VDD = 5.5V, VBAT = -75V, ITSD = 10A
TSD Logic high
Output voltage,
TSD Logic low
VIH
Maximum
VDD = 5.5V, VBAT = -75V, ITSD = 1mA
(Not production tested - limits are
guaranteed by design and quality
control sampling audits.)
1.8 Voltage and Power Specifications
Parameter
Test Conditions
Symbol
Minimum
Typical
Maximum
Unit
Voltage Requirements
VDD
-
VDD
4.5
5.0
5.5
V
VBAT1
-
VBAT
-19
-48
-72
V
1V
BAT is used only for internal protection circuitry. If VBAT goes more positive than -10 V, the device will enter the All-Off state, and will remain in the All-Off state
until the battery goes more negative than -15V
Power Specifications
Power consumption
VDD current
VBAT current
R01
VDD = 5V, VBAT = -48V,
Measure IDD and IBAT,
Talk and All-Off states
Ringing state
VDD = 5V, VBAT = -48V
P
P
-
5.5
6.5
10.5
10.5
mW
mW
Talk and All-Off states
IDD
-
1.1
2.0
mA
Ringing state
VDD = 5V, VBAT = -48V, All states
IDD
-
1.3
2.0
mA
IBAT
-
0.1
10
A
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7
INTEGRATED CIRCUITS DIVISION
CPC7691
1.9 Protection Circuitry Electrical Specifications
Parameter
Conditions
Symbol
Minimum
Typical
Maximum
-
2.1
3.0
Unit
Protection Diode Bridge
Forward Voltage drop,
continuous current
(50/60 Hz)
Apply ± DC current limit of break
switches
Forward Voltage drop,
surge current
Apply ± dynamic current limit of break
switches
VF
V
-
5
-
-
-
-
*
A
ITRIG
-
-
mA
-
mA
Protection SCR (CPC7691BA)
Surge current
-
Trigger current:
Current into VBAT pin
SCR activates, +25C
SCR activates, +85C
SCR remains active, +25C
Hold current: Current
through protection SCR SCR remains active, +85C
Gate trigger voltage
Reverse leakage current VBAT = -48V
0.5A, t = 0.5 s
On-state voltage
2.0A, t = 0.5 s
45
-
195
110
130
VTBAT or
VRBAT
VBAT -4
-
VBAT -2
V
IVBAT
-
0.2
1.0
A
VTBAT or
VRBAT
-
-
V
TTSD_on
110
125
150
C
TTSD_off
10
-
25
C
IHOLD
IGATE = ITRIGGER§
65
-3
-5
Temperature Shutdown Specifications
Shutdown activation
temperature
Shutdown circuit
hysteresis
Not production tested - limits are
guaranteed by design and Quality
Control sampling audits.
*Passes GR1089 and ITU-T K.20 with appropriate secondary protection in place.
§
VBAT must be capable of sourcing ITRIGGER for the internal SCR to activate.
1.10 Truth Table
State
INRINGING
Latch
Talk
0
Ringing
1
Latched 2
X
1
All-Off
X
X
0
TSD
Break
Switches
On
Off
Z1
Off
On
Unchanged
Unchanged
Off
Off
0
Ringing Switches
1 Z = High Impedance. Because T has an internal pull-up at this pin, it should be controlled with an open-collector or open-drain type device.
SD
2
Not a state; indicates existing state can not be changed via the INRINGING input.
8
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INTEGRATED CIRCUITS DIVISION
CPC7691
2. Functional Description
2.1 Introduction
The CPC7691 has three states:
• Talk. Line break switches SW1 and SW2 closed,
ringing switches SW3 and SW4 open.
• Ringing. Ringing switches SW3 and SW4 closed,
line break switches SW1 and SW2 open.
• All-Off. All switches open.
See “Truth Table” on page 8 for more information.
The CPC7691 offers both break-before-make and
make-before-break switching techniques when
transitioning from the ringing state to the talk state with
simple TTL level logic input control. Solid-state switch
construction means no impulse noise is generated
when switching during ringing cadence or ring trip
thereby eliminating the need for external zero-cross
switching circuitry. State-control input is via TTL logic
levels so no additional driver circuitry is required. The
linear line break switches, SW1 and SW2, have
exceptionally low RON and excellent matching
characteristics. SW4, the ringing switch, has a
minimum open contact breakdown voltage of 465V at
+25C and a minimum dv/dt immunity of 1500v/us,
sufficiently high to prevent breakdown in the presence
of a transient fault condition (i.e., prevent passing the
transient on to the ringing generator).
Integrated into the CPC7691 is an over-voltage
clamping circuit, active current limiting, and a thermal
shutdown mechanism to provide protection to the
SLIC during a fault condition. Positive and negative
lightning surge currents are reduced by the current
limiting circuitry and hazardous potentials are diverted
away from the SLIC via the protection diode bridge or
the optional integrated protection SCR. Power-cross
potentials are also reduced by the current limiting and
thermal shutdown circuits.
To protect the CPC7691 from an over-voltage fault
condition, the use of a secondary protector is required.
The secondary protector must limit the voltage seen at
the TLINE and RLINE terminals to a level below the
maximum breakdown voltage of the switches. To
minimize the stress on the solid-state contacts, use of
R01
a foldback or crowbar type secondary protector is
highly recommended. With proper selection of the
secondary protector, a line card using the CPC7691
will meet all relevant ITU, LSSGR, TIA/EIA and IEC
protection requirements.
The CPC7691 operates from a single +5V supply
giving the device extremely low power consumption
with virtually any range of battery voltage. The battery
voltage used by the CPC7691 has a twofold function.
First, for protection purposes, it is used as a current
source during fault conditions by the integrated
internal protection circuitry. Second, it is used as a
reference so that in the event of battery voltage loss,
the CPC7691 will enter the All-Off state.
2.2 Start-up
The CPC7691 uses smart logic to monitor the VDD
supply. Any time VDD is below the internally set Under
Voltage Lock Out (UVLO) threshold, the smart logic
places the switch control logic into the All-Off state. An
internal pull-up at the LATCH pin holds the CPC7691
in the All-Off state until the LATCH pin is pulled down
to a logic low. The control input, INRINGING, must be
properly conditioned prior to the assertion of a logic
low at the LATCH pin.
2.3 Data Latch
The CPC7691 has an integrated transparent data
latch. Latch enable operation is controlled by the
application of TTL logic input levels at the LATCH pin.
Data into the latch is via the input pin, INRINGING, while
the data latch output is an internal node used for state
control. When the LATCH enable control pin is at
logic 0, the data latch is transparent, and the
INRINGING data signal flows directly through the latch
to the state control circuitry. With LATCH = 0, a change
at INRINGING will be reflected by a switch state change.
Whenever LATCH = 1, the data latch is active and
data is locked. Subsequent changes at INRINGING will
not result in a change to the control logic or affect the
existing state.
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9
INTEGRATED CIRCUITS DIVISION
CPC7691
As can be seen in "Figure 1. CPC7691 Block Diagram” on
page 1 the TSD control bypasses the latch, therefore
the TSD control functions are independent of the latch.
On designs that do not wish to individually control the
LATCH pins of multiple-port cards it is possible to bus
many (or all) of the LATCH pins together to create a
single, board-level enable control. The weak internal
pull-up allows a fan out of up to 32 when the system’s
LATCH control driver has a logic low minimum sink
capability of 4mA.
2.4 TSD Pin Description
The TSD pin is a bidirectional I/O structure with an
internal pull-up current source biased from VDD having
a nominal value of 16A.
As an output, this pin indicates the status of the
thermal shutdown circuitry. During normal operation
this pin will be pulled up to VDD, but under fault
conditions that create excess thermal loading, the
CPC7691 will enter thermal shutdown, and a logic low
will be output at the TSD pin.
As an input, TSD is utilized to place the CPC7691 into
the “All-Off” state. This is accomplished by simply
pulling TSD to a TTL input logic low level. When used
as an input, forcing a logic high condition at TSD will
not override the thermal shutdown capability.
As discussed earlier the TSD control bypasses the
latch so that neither the input nor the output control
functions are affected by the latch. Consequently,
because TSD is independent of the latch, the internal
thermal shutdown function and the external “All-Off”
control features are not affected by the state of the
LATCH input.
For applications using low-voltage logic devices (lower
than VDD), IXYS Integrated Circuits Division
recommends the use of an open-collector or an
open-drain type output to control TSD. This avoids
sinking the TSD pull-up bias current to ground during
normal operation when the All-Off state is not
required. In general, IXYS Integrated Circuits Division
recommends all applications use an open-collector or
open-drain type device to drive this pin.
10
2.5 Under Voltage Switch Lock Out Circuitry
2.5.1 Overview
Smart logic in the CPC7691 now provides for switch
state control during both power-up and power loss
transitions. An internal detector is used to evaluate the
VDD supply to determine when to de-assert the under
voltage switch lock out circuitry with a rising VDD and
when to assert the under voltage switch lock out
circuitry with a falling VDD. Any time an unsatisfactory
low VDD condition exists, the under voltage lock out
circuit overrides user switch control by blocking the
information at the external input pins, and conditioning
internal switch commands to the All-Off state. Upon
restoration of VDD, the switches will remain in the
All-Off state until the LATCH input is pulled low.
The rising VDD switch lock-out release threshold is
internally set to ensure all internal logic is properly
biased and functional before accepting external switch
commands at the inputs to control the switch states.
For a falling VDD event, the lock-out threshold is set to
assure proper logic and switch behavior up to the
moment the switches are forced off and external
inputs are suppressed.
To facilitate hot plug insertion and system power-up
state control, the LATCH pin has an integrated weak
pull-up sourced from the VDD power rail that will hold a
non-driven LATCH pin at a logic high state. This
enables board designers to use the CPC7691 with
FPGAs or other devices that provide high impedance
outputs during power-up and logic configuration.
2.5.2 Hot Plug and power-up Design Considerations
There are six possible start-up scenarios that can
occur during power-up with TSD  0. They are:
1.
2.
3.
4.
5.
6.
INRINGING defined at power-up & LATCH = 0
INRINGING defined at power-up & LATCH = 1
INRINGING defined at power-up & LATCH = Z
INRINGING not defined at power-up & LATCH = 0
INRINGING not defined at power-up & LATCH = 1
INRINGING not defined at power-up & LATCH = Z
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INTEGRATED CIRCUITS DIVISION
CPC7691
Under all start-up situations the CPC7691 will
condition the internal switch control logic for the All-Off
state thereby ensuring all of the switches will remain
off during power-up. When VDD requirements have
been satisfied the LCAS will complete it’s start-up
procedure in one of three conditions.
For start-up scenario 1, the CPC7691 will transition
from the All-Off state to the state defined by the
INRINGING input when VDD is valid.
For start-up scenarios 2, 3, 5, and 6, the CPC7691 will
power up in the All-Off state and remain there until the
LATCH pin is pulled low. This allows for an indefinite
All-Off state for boards inserted into a powered system
but are not configured for service or boards that need
to wait for other devices to be configured first.
Scenario 4 will start up with all switches in the All-Off
state, but upon the acceptance of a valid VDD the
LCAS will revert to either the Talk state or the Ringing
state, and thereafter may randomly change states
based on input pin leakage currents and loading. This
start-up condition should never be utilized as the
LCAS state after power-up can not be predicted.
For the start-up scenario when TSD = 0 the CPC7691
will condition the internal control logic for the All-Off
state as it does when TSD  0. Start-up behavior with
an initial TSD = 0 is dependent on when TSD is
released with respect to the status of the Under
Voltage Lock Out circuitry. Releasing TSD (which
allows the internal pull-up to raise the input from a
logic level low to a logic level high before, or
concurrent with, the Under Voltage Lock Out
deactivation) has no effect on the start-up behavior,
and the start-up scenarios previously described are
applicable.
With TSD held low beyond the deactivation of the
internal Under Voltage Lock Out control, the device will
remain in the All-Off state regardless of the levels on
the INRINGING or LATCH inputs. However, it is
important to note that the LATCH is fully functional
once the Under Voltage Lock Out deactivates. This
allows the LATCH to be preconfigured to the state
desired with the release of TSD.
R01
2.6 VBAT Pin
Although battery power is not used for switch control, it
is required to direct negative potential faults away from
the SLIC. Because the CPC7691 requires VBAT to
protect the SLIC from negative potential faults, the
CPC7691 will deactivate and enter the All-Off state
whenever VBAT is unavailable.
2.6.1 Protection
In the presence of a negative potential fault the
CPC7691BA will draw current from VBAT to supply
trigger current for the internal integrated protection
circuitry SCR. This integrated SCR is designed to
activate whenever the voltage at TBAT or RBAT drops
2V to 4V below the applied voltage on the VBAT pin.
Because the battery supply at this pin is required to
source trigger current during negative over-voltage
fault conditions at tip and ring, it is important that the
net supplying this current be a low impedance path for
high speed transients such as lightning. This will
permit trigger currents to flow enabling the SCR to
activate, and thereby prevent a fault induced negative
over-voltage event at the TBAT or RBAT nodes.
Although the CPC7691BB does not have the SCR for
negative potential fault protection, it utilizes a power
switching diode from each of the TBAT and RBAT nodes
to VBAT, which forward conduct in the presence of
potentials at these nodes more negative than VBAT.
Proper protection requires VBAT to supply sufficient
current to counter the transient fault currents restricted
by the current limit functions of the break switches.
2.6.2 Battery Voltage Monitor
The CPC7691 also uses the VBAT pin to monitor the
battery voltage. If system battery voltage is lost, the
CPC7691 immediately enters the All-Off state, and
remains in this state until the battery voltage is
restored. An internal detector monitoring the system
battery voltage forces the All-Off state anytime the
battery voltage goes more positive than –10V. The
All-Off state is maintained until the battery voltage
goes more negative than –15 V. This battery monitor
feature draws a small current from VBAT (typically
<1A) and will add slightly to the device’s overall
power dissipation.
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11
INTEGRATED CIRCUITS DIVISION
CPC7691
This monitor function performs properly if the
CPC7691 and SLIC share a common battery supply
origin. Otherwise, if battery is lost to the CPC7691 but
not to the SLIC, the VBAT pin will be internally biased
by the potential applied at the TBAT or RBAT pins via
the internal protection circuitry.
operation occurs when the contacts of SW3 and SW4
are opened (broken) before the switch contacts of
SW1 and SW2 are closed (made). With the CPC7691,
make-before-break and break-before-make operations
can easily be accomplished by applying the proper
sequence of inputs to the device.
2.7.1 Make-Before-Break Operation
2.7 Ringing to Talk State Switch Timing
The CPC7691 provides, when switching from the
Ringing state to the Talk state, the ability to control the
release timing of the ringing switches, SW3 and SW4,
relative to the activation of the break switches, SW1
and SW2, using simple TTL logic-level inputs. The two
available techniques are referred to as
make-before-break and break-before-make. When the
switch contacts of SW1 and SW2 are closed (made)
before the switch contacts of SW3 and SW4 are
opened (broken), this is referred to as
make-before-break operation. Break-before-make
To use make-before-break operation, change
INRINGING from the Ringing state directly to the Talk
state. Assertion of the Talk state opens the ringing
return switch, SW3, as the break switches, SW1 and
SW2, close. The ringing switch, SW4, remains closed
until the next zero-crossing of the ringing current.
While in the make-before-break state, ringing
potentials in excess of the CPC7691 protection
circuitry thresholds will be diverted away from the
SLIC. This operational sequence is shown below in
the Ringing to Talk Logic Sequence: Make-Before-Break.
Ringing to Talk Logic Sequence: Make-Before-Break
Timing
Ringing
Return
Switch
(SW3)
Ringing
Switch
(SW4)
State
INRINGING
Ringing
1
-
Off
On
On
MakeBeforeBreak
0
SW4 waiting for next zero-current crossing to
turn off. Maximum time is one-half of the ringing
cycle. In this transition state, current that is
limited to the DC break switch current limit value
will be sourced from the ring node of the SLIC.
On
Off
On
Talk
0
Zero-cross current has occurred
On
Off
Off
Latch
0
TSD
Break
Switches
Z
2.7.2 Break-Before-Make Operation
Break-before-make switch timing is performed via the
bidirectional TSD interface. As an input, TSD can
disable all of the CPC7691 switches when pulled to a
logic low. Although logically disabled, an active
(closed) ringing switch (SW4) will remain active until
the next zero crossing current event. This operational
sequence is shown below in the Ringing to Talk Logic
Sequence: Break-Before-Make.
1. Pull TSD to a logic low to end the ringing state.
This opens the ringing return switch (SW3) and
prevents any other switches from closing.
2. Keep TSD low for at least one-half the duration of
the ringing cycle period to allow sufficient time for
a zero crossing current event to occur and for the
12
circuit to enter the break-before-make state.
3. During the TSD low period, clear the INRINGING
input for the talk state (logic low).
4. Release TSD allowing the internal pull-up to
activate the break switches.
When using TSD as an input, the two recommended
states are “0,” which overrides the logic inputs while
forcing an All-Off state, and “Z,” which allows normal
switch control via the logic input pins. This requires the
use of an open-collector or open-drain type buffer.
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INTEGRATED CIRCUITS DIVISION
CPC7691
Ringing to Talk Logic Sequence: Break-Before-Make
State
INRINGING
Ringing
1
All-Off
1
All-Off
0
Talk
0
Latch
0
Ringing
Return
Switch
(SW3)
Ringing
Switch
(SW4)
TSD
Timing
Break
Switches
Z
-
Off
On
On
Hold this state for one-half of the ringing cycle.
SW4 waiting for zero current to turn off.
Off
Off
On
Zero current has occurred. SW4 has opened
Off
Off
Off
Close break switches
On
Off
Off
0
Z
Logic states and explanations are provided in the “Introduction” on page 9.
2.8 Ringing Switch Zero-Cross Current Turn Off
After the application of a logic change to cease
ringing, the ringing switch (SW4), designed to delay
deactivation until a zero current event, will remain
active until a current zero-crossing occurs. Once on
(active) the ringing switch requires a zero current
event to turn off and therefore should not be used to
switch a DC-only signal. This zero current switching
characteristic will reduce and possibly eliminate
overall system impulse noise normally associated with
ringing switches. See IXYS Integrated Circuits
Division application note AN-144, Impulse Noise Benefits
of Line Card Access Switches for more information. The
attributes of ringing switch SW4 may make it possible
to eliminate the need for a zero-cross switching
scheme. A minimum impedance of 300 in series with
the ringing generator is recommended.
2.9 Power Supplies
Both a +5V supply and battery voltage are connected
to the CPC7691. Switch state control is powered
exclusively by the +5V supply. As a result, the
CPC7691 exhibits extremely low power consumption
during active and idle states.
2.10 Internal Protection
The CPC7691 uses a combination of current limited
break switches, a diode bridge/SCR clamping circuit,
and a thermal shutdown mechanism to protect the
SLIC device or other associated circuitry from damage
during line transient events such as lightning and fault
conditions such as power induction and power-cross.
R01
2.10.1 Current Limiting Function
If a lightning strike transient occurs when the device is
in the talk state, the current passed from the line to the
internal integrated protection circuitry is restricted by
the dynamic current limit response of the active break
switches. For instance, during the talk state when a
1000V 10x1000 s lightning pulse (GR-1089-CORE)
is applied to the line though a properly clamped
external protector, the current seen at TLINE or RLINE
will be a pulse having a typical magnitude of 2.5A with
a duration less than 0.5 s.
Whenever a power-cross fault occurs with the device
in the talk state, the current passed though the break
switches SW1 and SW2 on to the integrated
protection circuit is limited by the DC current limit
response of the break switches. The DC current limit
specified over temperature ranges from 80mA to
425mA and has a negative temperature coefficient. As
a result, if the device is subjected to extended heating
due to a power-cross fault condition, the measured
current into TLINE or RLINE will decrease as the device
temperature increases. If the device temperature rises
sufficiently, the thermal shutdown mechanism will
activate, and the device will enter the All-Off state.
2.10.2 Diode Bridge/SCR
During a positive potential transient or other fault
condition, the fault currents from TLINE or RLINE,
limited by the break switches, are conducted through
switching power diodes from TBAT and RBAT to ground
via FGND. Both versions of the CPC7691 utilize a pair
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13
INTEGRATED CIRCUITS DIVISION
CPC7691
of switching power diodes connected to FGND, one
from TBAT and the other from RBAT, oriented to forward
conduct whenever the potential at either TBAT or RBAT
becomes positive with respect to FGND.
For negative potential fault situations, the CPC7691BA
utilizes a voltage fold-back SCR to direct fault currents
to FGND, away from the external devices, while the
CPC7691BB uses a pair of switching power diodes to
direct the fault currents to VBAT.
The SCR protection technique of the CPC7691BA
uses the VBAT supply as a reference and as a current
source for the SCR trigger to activate the SCR. During
a negative transient event resulting in a bias at TBAT or
RBAT of 2V to 4V more negative than VBAT, the SCR
conducts and faults are shunted to FGND. In order for
the SCR to crowbar (or foldback), the SCR’s
on-voltage (see “Protection Circuitry Electrical
Specifications” on page 8) must be less than the applied
voltage at the VBAT pin. If the VBAT voltage is less
negative than the SCR on-voltage, or if the VBAT
supply is unable to source the trigger current, the SCR
will not crowbar.
Unlike the CPC7691BA which uses one-half of a
diode bridge and an SCR for the internal protection,
the CPC7691BB instead uses a full diode bridge to
clamp both polarities of a transient fault. In the
CPC7691BB a pair of power switching diodes are
used to direct excessive negative potentials at the
TBAT and RBAT nodes into VBAT. These diodes are
oriented so that anytime the potentials at the TBAT or
RBAT nodes become more negative than VBAT they
forward conduct.
Because these diodes direct negative potential faults
to the VBAT pin, the battery supply must be capable of
sourcing currents equal in magnitude to the total
currents of all simultaneous faults. As mentioned
earlier, the fault currents are restricted by the current
limits of the break switches.
Use of the CPC7691BA is recommended for
applications where the local VBAT supply is incapable
of sourcing the cumulative transient current demands
of simultaneous multiple port faults.
14
2.10.3 Thermal Shutdown
The thermal shutdown mechanism activates when the
device die temperature reaches a minimum of 110C,
placing the device in the All-Off state regardless of
logic input. During thermal shutdown events the TSD
pin will output a logic low with a nominal 0V level. A
logic high is output from the TSD pin during normal
operation with a typical output level equal to VDD.
When presented with short duration transients such
as a lightning event, the thermal shutdown feature will
typically not activate. But in an extended power-cross
event, fault currents limited by the DC current limit
function flowing through the active switches will cause
the device temperature to rise until the thermal
shutdown mechanism activates. Activation of the
thermal shutdown mechanism forces the CPC7691
into the All-Off state. At this point the current
measured into TLINE or RLINE will drop to zero. Once
the device enters thermal shutdown it will remain in
the All-Off state until the device temperature drops
below the de-activation level of the thermal shutdown
circuit. This permits the device to autonomously return
to normal operation.
If the fault condition has not passed, the limited current
will again flow through the active switches and heating
will resume, reactivating the thermal shutdown
mechanism. This cycle of entering and exiting the
thermal shutdown mode will continue as long as the
fault condition persists. If the magnitude of the fault
condition is great enough, the external secondary
protector will activate shunting the fault current to
ground.
2.11 External Protection Elements
The CPC7691 requires only over-voltage secondary
protection on the loop (line) side of the device. The
integrated protection feature described above negates
the need for additional external protection on the SLIC
side. The secondary protector must limit voltage
transients to levels that do not exceed the breakdown
voltage or input-output isolation barrier of the
CPC7691. A foldback or crowbar type protector is
recommended to minimize stresses on the switches.
Consult IXYS Integrated Circuits Division’s application
note, AN-144, Impulse Noise Benefits of Line Card Access
Switches for equations related to the specifications of
external secondary protectors, fuse resistors and
PTCs.
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INTEGRATED CIRCUITS DIVISION
CPC7691
3. Manufacturing Information
3.1 Moisture Sensitivity
All plastic encapsulated semiconductor packages are susceptible to moisture ingression. IXYS Integrated
Circuits Division classified all of its plastic encapsulated devices for moisture sensitivity according to the
latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the time of product
evaluation. We test all of our products to the maximum conditions set forth in the standard, and guarantee
proper operation of our devices when handled according to the limitations and information in that standard as well as
to any limitations set forth in the information or standards referenced below.
Failure to adhere to the warnings or limitations as established by the listed specifications could result in reduced
product performance, reduction of operable life, and/or reduction of overall reliability.
This product carries a Moisture Sensitivity Level (MSL) rating as shown below, and should be handled according to
the requirements of the latest version of the joint industry standard IPC/JEDEC J-STD-033.
Device
Moisture Sensitivity Level (MSL) Rating
CPC7691BA / CPC7691BB
MSL 1
3.2 ESD Sensitivity
This product is ESD Sensitive, and should be handled according to the industry standard JESD-625.
3.3 Reflow Profile
This product has a maximum body temperature and time rating as shown below. All other guidelines of J-STD-020
must be observed.
Device
Maximum Temperature x Time
CPC7691BA / CPC7691BB
260°C for 30 seconds
3.4 Board Wash
IXYS Integrated Circuits Division recommends the use of no-clean flux formulations. However, board washing to
remove flux residue is acceptable, and the use of a short drying bake may be necessary. Chlorine-based or
Fluorine-based solvents or fluxes should not be used. Cleaning methods that employ ultrasonic energy should not be
used.
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INTEGRATED CIRCUITS DIVISION
CPC7691
3.5 Package Mechanical Dimensions
Recommended PCB Land Pattern
10.211 ± 0.254
(0.402 ± 0.010)
1.27
(0.050)
PIN 16
10.312 ± 0.381
(0.406 ± 0.015)
7.493 ± 0.127
(0.295 ± 0.005)
9.40
(0.370)
2.00
(0.079)
PIN 1
0.406 ± 0.076
(0.016 ± 0.003)
1.270 TYP
(0.050 TYP)
0.60
(0.024)
2.337 ± 0.051
(0.092 ± 0.002)
45º
0.649 ± 0.102
(0.026 ± 0.004)
0.203 ± 0.102
(0.008 ± 0.004)
0.889 ± 0.178
(0.035 ± 0.007)
0.254 / +0.051 / -0.025
(0.010 / +0.002 / -0.001)
DIMENSIONS
mm
(inches)
NOTES:
1. Coplanarity = 0.1016 (0.004) max.
2. Leadframe thickness does not include solder plating (1000 microinch maximum).
3.6 Tape and Reel Specifications
330.2 DIA.
(13.00 DIA.)
W=16
(0.630)
Top Cover
Tape Thickness
0.102 MAX.
(0.004 MAX.)
B0=10.70
(0.421)
K0=3.20
(0.126)
A0=10.90
(0.429)
P=12.00
(0.472)
K1=2.70
(0.106)
Embossed Carrier
Embossment
NOTES:
1. All dimensions carry tolerances of EIA Standard 481-2
2. The tape complies with all “Notes” for constant dimensions
listed on page 5 of EIA-481-2
Dimensions
mm
(inches)
For additional information please visit www.ixysic.com
IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and
reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses or indemnity are expressed
or implied. Except as set forth in IXYS Integrated Circuits Division’s Standard Terms and Conditions of Sale, IXYS Integrated Circuits Division assumes no liability
whatsoever, and disclaims any express or implied warranty relating to its products, including, but not limited to, the implied warranty of merchantability, fitness for a
particular purpose, or infringement of any intellectual property right.
The products described in this document are not designed, intended, authorized, or warranted for use as components in systems intended for surgical implant into
the body, or in other applications intended to support or sustain life, or where malfunction of IXYS Integrated Circuits Division’s product may result in direct physical
harm, injury, or death to a person or severe property or environmental damage. IXYS Integrated Circuits Division reserves the right to discontinue or make changes
to its products at any time without notice.
Specification: DS-CPC7691-R01
©Copyright 2013, IXYS Integrated Circuits Division
All rights reserved. Printed in USA.
6/10/2013
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