ETC2 OZ964G Change summary Datasheet

OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
Change Summary
CHANGES
No.
1
Applicable Section
Title
2
Ordering Information
3
General Description
Functional Block Diagram
Description
Reference Application
Circuit
Package information
Throughout data sheet
4
5
6
7
Description
Change the title to read ‘Phase-Shift PWM Controller’
Add OZ964GN, OZ964IG, OZ964IGN, OZ964D &
OZ964DN
st
Add 1 paragraph ‘OZ964 is a high…LCD.’
st
Page(s)
1
1
1
st
Add 1 paragraph 1 sentence ‘Specific DC/CD…’
5
Add DC/DC Reference Application Circuit
10
Correct 20 Pin SOIC 300mil drawing
Miscellaneous corrections
12
---
REVISION HISTORY
Revision No.
0.95
0.96
1.0
1.1
Description of change
Initial Release
1. Ordering information: add OZ964SN & OZ964ISN. 2. Pin
Description: modified pin description of CTIMR, DIM. 3. Electrical
Characteristics: revise a) ‘Nominal Voltage’ Typ limit, b) ‘Normal
Operating Frequency’ Typ limit, c) ‘Ramp Peak’ Typ limit, d)
‘Operating Frequency’ Typ limit, e) ‘Negative-Going Threshold
Voltage’ Max limit, f) ‘SST Current’ Typ limit, g) ‘CTIMR Current 1’
Typ limit, h) ‘Protection Release Threshold’ Typ limit, i) ‘PDR_A/
PDR_C’ Typ`limit, j) ‘Enable’ Min limit, k) ‘NDR_B/ NDR_D’ Typ limit,
l) ‘BBM Time Between PDR and NDR’ Typ limit, m) ‘Minimum
Overlap’ Typ limit. 4. Simplified Functional Block Diagram. 5. Modified
formula in No. 4 Ignition & No. 5 Normal Operation in Functional
Information. 6. Revise Application Circuit. 7. Miscellaneous
corrections.
1. Electrical Characteristics: a) Fill in Min & Max limits of all
parameters b) Correct ‘SST Protection Release Threshold’ Typ limit.
2. Application Circuit: Correct a) C10 to 6.8n, b) T1 to 28:2200. 3.
Miscellaneous corrections.
1. Footer: Add patent number 6,259,615 2. Application circuit: a.)
Delete R3, R7, R6 & R11. b) Change R9 value from 45.3k to 47K
09/03/04
Copyright  2004 by O2Micro
OZ964-DS-1.2
All Rights Reserved
Release Date
1/13/2004
3/19/2004
4/5/2004
7/29/2004
Page 0
U.S. Patent No. 6,259,615
CONFIDENTIAL
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
Phase-Shift PWM Controller
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Controller for high-voltage DC/DC and
DC/AC converters
High efficiency, zero-voltage switching
Supports wide input voltage range
Constant operating frequency
Built-in PWM dimming control with wide
dimming range
Soft start function
Built-in intelligence for ignition and normal
operation of CCFLs
Built-in open-lamp protection and overvoltage protection
Shutdown delay for input voltage brownout
condition
Built-in under-voltage lockout protection
Toggle pin to reset the IC after shutdown
Low stand-by power
ORDERING INFORMATION
Part
Number
OZ964S
Temp Range
0° C to 70° C
OZ964SN
0° C to 70° C
OZ964IS
-40° C to +85°C
OZ964ISN
-40° C to +85°C
OZ964G
0° C to 70° C
OZ964GN
0° C to 70° C
OZ964IG
-40° C to +85°C
OZ964IGN
-40° C to +85°C
OZ964D
0° C to 70° C
OZ964DN
0° C to 70° C
Package
20-pin SSOP
20-pin SSOP,
Leadfree
20-pin SSOP
20-pin SSOP,
Leadfree
20-pin SOIC
20-pin SOIC,
Leadfree
20-pin SOIC
20-pin SOIC,
Leadfree
20-pin PDIP
20-pin PDIP,
Leadfree
GENERAL DESCRIPTION
OZ964 is a high efficiency, Pulse Width
Modulation (PWM) controller designed for both
DC/DC and DC/AC high-voltage applications.
The average current mode control is suitable for
DC/DC converters where both voltage and
current feedback are required, as well as for Cold
Cathode Fluorescent Lamp (CCFL)_ backlight
applications for small and large Liquid Crystal
Displays (LCD).
09/03/04
Copyright  2004 by O2Micro
OZ964 operates in a zero-voltage switching
mode
that
minimizes
electromagnetic
interference (EMI). In addition, OZ964 achieves a
high power-conversion efficiency resulting in a
lower operating temperature and higher system
reliability.
OZ964 supports a wide input voltage range and
provides a constant, user-defined, operating
frequency, ensuring that the CCFLs operate at a
fixed frequency. This eliminates interference
among CCFLs and the LCD panel. Interference
causes electromagnetic compatibility (EMC)
problems and may create visual effects
(waterfall) on LCD panels. The controller
provides a phase-shift square wave output that is
able to drive a full bridge power train.
OZ964 utilizes a pulse width modulation (PWM)
dimming method to achieve a wide dimming
range. The IC performs the CCFL dimming
function with an analog or low frequency PWM
control. The PWM frequency is user-defined.
To avoid over-shoot and in-rush current to the
CCFLs during ignition, a soft start function is
provided for reliable CCFL operation.
The controller provides open-lamp protection and
over-voltage protection, while providing an
appropriate response for either open-lamp
ignition or removal of a CCFL during normal
operation. Intelligent open-lamp protection and
over voltage protection provides design flexibility
with various transformer characteristics. Openlamp protection time is user-defined.
In addition, OZ964 provides a shutdown delay
function that will keep the inverter module in
normal operation for a short period of time if the
input voltage suddenly drops and subsequently
resumes to a normal level. The shutdown delay
time is user-defined.
OZ964 provides under-voltage lockout protection
and will disable the IC if VDDA falls below a
threshold. OZ964 will resume normal operation
when VDDA exceeds the threshold.
To reset the IC, toggle the enable (ENA) pin.
OZ964 operates with a standby current of
approximately 200uA.
OZ964-DS-1.2
All Rights Reserved
Page 1
U.S. Patent No. 6,259,615
CONFIDENTIAL
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
PIN DESCRIPTION
Names
Pin No.
CTIMR
1
OVP
ENA
SST
VDDA
GNDA
REF
RT1
FB
CMP
NDR_D
PDR_C
LPWM
DIM
LCT
PGND
RT
CT
PDR_A
NDR_B
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Description
Timing capacitor to provide striking time and timing resistor to provide
shutdown delay time
Voltage feedback
Enable input
Timing capacitor to provide Soft-Start Time
Supply voltage
Signal ground
Reference voltage output
Timing resistor to provide striking frequency
Current sense feedback
Voltage control loop compensation
N-MOSFET gate drive output
P-MOSFET gate drive output
Low-frequency PWM signal for dimming control
DC voltage input for LPWM duty cycle
Timing capacitor to provide LPWM frequency
Power MOSFET driver ground
Timing resistor to provide striking and operating frequency
Timing capacitor to provide striking and operating frequency
P-MOSFET gate drive output
N-MOSFET gate drive output
ABSOLUTE MAXIMUM RATINGS(1)
VDDA
GNDA, PGND
Signal inputs
Operating Temp.
7.0V
+/- 0.3V
-0.3V to (VDDA +0.3)V
OZ964
0oC to 70oC
Operating junction temp.
Storage temp.
OZ964I
-40oC to +85oC
125 oC
-55 C to 150 oC
o
RECOMMENDED OPERATING RANGE
VDDA
fOP- operating frequency
Resistor connected to RT (RRT)
Capacitor connected to CT (CCT)
fLF- LPWM frequency
Thermal Impedance (θJ-A)
20-pin SSOP
20-pin SOIC
4.6V to 5.5V
40 kHz to 150kHz(2)
20 kΩ to 150 kΩ
100pF to 470pF
100Hz to 500Hz
o
80 C/W
o
105 C/W
Note (1): The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be
guaranteed. The device should not be operated at these limits. The “Functional Specifications” table will
define the conditions for actual device operation. Exposure to absolute maximum rated conditions for
extended periods may affect device reliability.
Note (2): The frequency of PDR_A, NDR_B, PDR_C, and NDR_D outputs pulses, fOP, is half of fosc value,
fOP =(fosc/2).
CONFIDENTIAL
OZ964-DS-1.2
Page 2
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test Conditions
Limits
o
VDDA=5V; Tamb=25 C;
Unit
Min
Typ
Max
Iload = 30µA
3.22
3.35
3.48
V
Temp coefficient
o
(Tamb=25 C)
-
125
-
ppm/ C
Reference Voltage
Nominal voltage
Vref
o
Line regulation
KL
VDDA=4.6V to 5.5V
-
2
-
mV/V
Load regulation
KV
Iload = 5 µA to 80 µA
-
2
-
mV
fop
CCT =220pF ;
61.5
63.0
65.5
kHz
-
125
-
ppm/ C
Operating Frequency
Normal Operating Frequency
(1)
(1)
RRT =47kΩ
Temp coefficient
o
(Tamb=25 C)
o
Ramp peak
CT Vpeak
2.35
2.50
2.65
V
Ramp valley
CT Vvalley
1.00
1.05
1.12
V
CLCT=6.8nF(2); VDIM=1.2V
209
220
225
Hz
Temp coefficient
o
(Tamb=25 C)
-
470
-
ppm/ C
V
Low Frequency Oscillator
Operating frequency
fLF
o
Ramp peak
LCT Vpeak
1.96
2.06
2.18
Ramp valley
LCT Vvalley
0.27
0.31
0.33
V
LPWM
0
-
100
%
VSST=0V
0.49
0.50
0.55
V
VSST=2V
0.79
0.80
0.81
V
VSST=4V
1.19
1.24
1.29
V
Positive-Going Threshold Voltage
4.3
-
-
V
Negative-Going Threshold Voltage
-
-
3.2
V
-
200
300
µA
-
3.0
4.2
mA
4.5
5.5
6.2
µA
-
420
-
ppm/ C
VDDA
-1.25
VDDA
-1.0
VDDA
-0.93
V
2.0
2.5
2.9
µA
-
395
-
ppm/ C
CTIMR current 2
20
30
40
µA
Protection release threshold
2.9
3.1
3.3
V
Duty Cycle Range
Error Amplifier
Reference voltage at non-
VADJ
inverting input pin (internal)
Under-Voltage Lockout
Supply
Stand-by Current
IOFF
ENA=low
Supply Current
ION
DIM=1.2V; LPWM=50kΩ
Ca=Cb=Cc=Cd=0.5nF
(3)
(1)
CCT =220pF ,
(1)
RRT =47kΩ
(2)
;CLCT=6.8nF
Soft Start
SST current
Temp coefficient
o
(Tamb=25 C)
SST Protection Release Threshold
o
CTIMR
CTIMR current 1
Temp coefficient
o
(Tamb=25 C)
CONFIDENTIAL
OZ964-DS-1.2
o
Page 3
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
ELECTRICAL CHARACTERISTICS (CONTINUED)
Parameter
Symbol
Test Conditions
o
VDDA=5V; Tamb=25 C;
Limits
Unit
Min
Typ
Max
Output Driver Rds(on)
PDR_A / PDR_C
Sourcing=75mA
12
25
35
Ω
NDR_B / NDR_D
Sinking=75mA
13
25
36
Ω
Enable
2.3
-
-
V
Disable
-
-
1.0
V
1.95
2.00
2.20
V
2.54
2.70
2.82
V
150
200
220
ns
-
495
-
ppm/ C
91
95
-
%
-
2.5
3.9
%
Enable Thresholds
Over-Voltage Protection
Threshold Voltage
OVP
Open-Lamp Protection Threshold
Open-Lamp Threshold
CMP> open-lamp threshold
causes shutdown
Break-Before-Make (BBM)
BBM Time Between PDR and NDR
Temp coefficient
o
(Tamb=25 C)
o
Maximum / Minimum Duty Cycle
Maximum Overlap
Vsst = 3.75V ;
Vcmp = 3.24V
Minimum Overlap
Vsst = 0.8V ;
Vcmp = 3.5V
(1)
Note
CCT: capacitor from ”CT” (Pin 18) to ground
RRT: resistor from “RT” (Pin 17) to ground
(2)
Note
CLCT: capacitor from “LCT” (Pin 15) to ground
(3)
Note
Ca: capacitor from PDR_A (Pin 19) to VDDA
Cb: capacitor from NDR_B (Pin 20) to ground
Cc: capacitor from PDR_C (Pin 12) to VDDA
Cd: capacitor from NDR_D (Pin 11) to ground
CONFIDENTIAL
OZ964-DS-1.2
Page 4
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
FUNCTIONAL BLOCK
DIAGRAM DESCRIPTION
Specific DC/DC applications can be shown with a
Reference Application Circuit in Figure 3, page
10. The following discussions will address the
OZ964 driving a DC/AC CCFL application. Refer
to the Functional Block Diagram in Figure 1, page
6 and the Reference Application Circuit in Figure
2 , page 9. The drive circuit consists of four
outputs, PDR_A, NDR_B, PDR_C and NDR_D,
(pins 19, 20, 12 and 11) respectively. The drive
circuit is designed to achieve high efficiency,
zero-voltage switching operation. The four power
MOSFET gate output drives, PDR_A, NDR_B,
PDR_C and NDR_D are designed such that
switches QA/QB and QC/QD never turn-on
simultaneously. The configuration prevents any
shoot-through issues associated with bridge-type
power conversion applications. CCFL current
regulation is achieved by adjusting the overlap
conduction between diagonal switches QA/QD
and QB/QC. The overlap is adjusted when the
power source voltage varies.
The Protection Block intelligently monitors and
differentiates the striking condition and openlamp condition. The open-lamp protection
function disables the drive circuit if a fault
condition is encountered.
The Reference Block provides a precision
reference voltage for both internal and external
uses.
The LPWM Generator Block provides a low
frequency PWM (LPWM) function that provides
wide dimming control for the CCFLs. The LPWM
frequency is user-defined by connecting an
external capacitor to LCT (pin 15). An analog
voltage at DIM (pin 14) is compared with the LCT
waveform that yields a LPWM signal to control
the power delivered to the CCFLs.
OZ964 is enabled with a voltage greater than 2V
applied to ENA (pin 3). A voltage of less than 1V
to ENA pin will disable the controller. Toggling
ENA (pin 3) from High-Low-High will reset the
controller.
A current source of 30uA coupled with an
external capacitor and external resistor
connected to pin 1 controls the shutdown delay
time. The shutdown delay time will keep the
inverter module in normal operation for a short
period of time if the input voltage suddenly drops
and subsequently increases to a normal level.
The shutdown delay time is user-defined.
The Under-Voltage Lockout block provides a
brown-out period during which the output signals
are disabled while the VDDA voltage drops below
a ~3.4V threshold. OZ964 resumes normal
operation once VDDA voltage reaches a voltage
threshold of greater than ~4.3V.
Soft-start circuitry provides a gradual increase in
power to the drive circuit to power the CCFLs
during the ignition period. The Soft-Start Time
(SST) is user-defined by an external capacitor
connected to SST (pin 4) coupled with an SST
current source of 5.5uA.
A High Frequency Oscillator Block generates a
user-defined operating frequency determined by
an external capacitor (C5) and timing resistor
(R9) connected to CT (pin 18) and RT (pin 17)
respectively. An external resistor (R10)
connected to RT1 (pin 8) in parallel with RT
determines the striking frequency.
The current control loop monitors CCFL current
that is sensed with a voltage at FB (pin 9). The
voltage at FB (pin 9) is input to an Error Amplifier
and the output, CMP (pin 10), regulates the
CCFL current.
OZ964 provides an Over-Voltage Protection
(OVP) function to safely operate the CCFLs
under all conditions. The OVP Block regulates
the striking voltage for the CCFL during start-up.
The striking time is user-defined and determined
by an external capacitor connected to CTIMR
(pin 1) coupled with the CTIMR current source of
2.6uA.
CONFIDENTIAL
OZ964-DS-1.2
Page 5
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
FUNCTIONAL BLOCK DIAGRAM
1
20
Fault
Protection
Logic
2
19
3
18
ZVS
Phase
Shift
Driver
4
5
17
16
V-REF
I-BIAS
6
15
+
-
7
Control
Logic
8
9
14
13
12
+
11
10
Figure 1
CONFIDENTIAL
OZ964-DS-1.2
Page 6
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
FUNCTIONAL INFORMATION
1. Steady-State Operation
Referring to the example schematic shown in
Figure 2, page 9, OZ964 drives a full-bridge
power train where the transformer couples the
energy from the power supply source to the
CCFL. The switches in the bridge denoted as
QA, QB, QC and QD are configured such that the
transistors in each pair, QA/QB and QC/QD, are
turned-on complementarily. The turn-on duration
of the diagonal switches, QA/QD and QB/QC,
simultaneously determines the amount of energy
delivered to the transformer and subsequently to
the CCFL. The current in the CCFL is sensed
and regulated by adjusting the turn-on time
(overlap) for both diagonal switches. This is
accomplished through an error amplifier in the
current feedback loop.
A voltage loop is used to regulate the output
voltage for CCFL ignition and is programmable
by using a capacitor divider (C8/C13).
Over Voltage Protection (OVP) limits the
transformer voltage under an open-lamp
condition. A soft-start circuit ensures a gradual
increase in power to the CCFL. The soft-start
capacitor (C9) determines the rate of rise of the
voltage on the SST pin. Meanwhile, the voltage
level determines the turn-on time of the diagonal
switches QA/QD and QB/QC.
The output drives for the power MOSFET gates
include PDR_A, NDR_B, PDR_C and NDR_D
that output a complementary square pulse. The
operation of the four switches is implemented
with zero-voltage switching that provides a highefficiency power conversion.
2. Enable
OZ964 is enabled when the voltage on ENA (pin
3) is greater than 2V. A voltage of less than 1V
disables the IC. When the inverter controller is
disabled, it draws approximately 200uA. An
under-voltage lockout protection feature is
provided that will disable the IC if VDDA voltage
drops below an ~3.4V threshold. The IC will
resume normal operation once VDDA reaches a
threshold voltage of greater than ~4.3V.
the voltage at ENA (pin 3) is greater than 2V. The
soft-start time is determined by an external
capacitor (C9) connected to the SST (pin 4). At
start-up, as C9 charges via a charging current,
the voltage level at the capacitor controls the
gradual increase in power delivered to the
transformer T1.
4. Ignition
The OZ964 provides an option of selecting a
different frequency for striking the CCFLs. The
striking time is user-defined and determined by
an external capacitor CCTIMR (C6) and external
resistor RCTIMR (R5) connected to CTIMR (pin 1).
The approximate striking time is determined by
the following equation.
T[second] =
CCTIMR[µF] x (3-(RCTIMR[kΩ] x 0.0026))
2.6
The approximate striking frequency is determined
by the following equation.
65•10
4
fstriking[kHz] =
CCT[pF]•(RRT // RRT1) [kΩ]
Note: RRT // RRT1 means RRT is in parallel with RRT.1.
5. Normal Operation
Once the IC is enabled, the voltage at SST (pin
4) controls the rate of power delivered to the
load. SST voltage increases to a level such that
the CCFLs are ignited. The striking frequency is
determined by external components R10, R9 and
C5 connected to RT1 (pin 8), RT (pin 17) and CT
(pin 18) respectively.
Once the external resistor R16 senses sufficient
current, the control loop takes control and
regulates the CCFL current. The normal
operating frequency is determined by the
combination of external resistor R9 and external
capacitor C5. The operating frequency is
approximated by the following equation.
65•10
4
fop[kHz] =
3. Soft-Start
CCT[pF]•RRT[kΩ]
To avoid component stresses and in-rush current
to the CCFLs during ignition, a soft start function
is implemented to provide reliable CCFL
operation. The soft-start function is initiated when
CONFIDENTIAL
OZ964-DS-1.2
Page 7
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
6. Open Lamp Protection
If the controller encounters an open lamp,
damaged lamp or lamp removal during normal
operation, the control loop generates a protection
signal and will immediately shutdown the
controller.
OZ964 provides a shutdown delay feature that
keeps the inverter module in normal operation if
the input voltage suddenly drops and
subsequently recovers. The shutdown delay time
is user-defined by external resistor RCTIMR (R5)
and external capacitor CCTIMR (C6) connected to
CTIMR (pin 1).
The shutdown delay time is approximated by the
following equation:
CCTIMR[µF] x (3 – (RCTIMR [kΩ] * 0.03))
T[second] =
30
7. Over-Voltage Protection &
Striking Time
During start-up, once the voltage at the
transformer secondary reaches a programmed
threshold, the control loop takes over and
regulates the voltage at the transformer
secondary. SST voltage at pin 4 is held constant
and CTIMR is activated to provide additional time
to ignite an aged CCFL. If no current is sensed
after approximately 1 to 2 seconds, the controller
shuts down. Toggling the ENA pin will reset the
controller.
8. PWM Dimming Control
OZ964 provides a low frequency PWM (LPWM)
dimming function to perform a wide dimming
range of 0% to 100%. The LPWM frequency is
determined by external capacitor C10 connected
to LCT (pin 15). The frequency is approximated
by the following equation.
Note: RCTIMR (R5) value equal or greater than
110kΩ will result in zero delay time.
Toggling ENA (pin 3) from High-Low-High resets
the controller.
CONFIDENTIAL
1496
f LF[Hz] =
CLCT[nF]
The LPWM frequency is user-defined by the
selection of external capacitor C10. An analog
voltage at DIM (pin 14) is compared with the LCT
waveform that yields a LPWM signal to control
the power delivered to the CCFLs. The typical
peak and valley of the LCT waveform is ~2.06V
and ~0.31V respectively.
OZ964-DS-1.2
Page 8
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
OZ964
REFERENCE APPLICATION CIRCUIT
VIN: 8.0V - 22V
VADJ: 2.1V Max. Brightness; 0.6V Min. Brightness
Striking frequency: 75.1KHz
Operating frequency: 63KHz
5VDC: 4.75V – 5.25V
CONFIDENTIAL
Figure 2
OZ964-DS-1.2
Page 9
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
OZ964
DC/DC REFERENCE APPLICATION CIRCUIT
Figure 3
CONFIDENTIAL
OZ964-DS-1.2
Page 10
OZ964
D
Detail A
h x 45 deg
E1
E
1
c
ZD
A
A2
SEATING PLANE
B
A1
0.10MM C
e
NOTES:
DIMENSION D DOES NOT INCLUDE M OLD PROTRUSIONS OR GATE BURRS
M OLD PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED 6 MIL PER SIDE
DIM
θ2
θ1
Gauge Plane
0.25MM
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
PACKAGE INFORMATION – 20-PIN SSOP 150mil: OZ964S
R
θ
L
Detail A
CONFIDENTIAL
R1
A
A1
A2
B
c
e
D
E
E1
L
h
ZD
R1
R
θ
θ1
θ2
JEDEC
MILLIMETERS
NOM
MAX
MIN
MIN
1.35
1.63
1.75
53
0.10
0.15
0.25
4
1.50
0.20
0.30
8
0.18
0.25
7
0.635 BASIC
8.56
8.66
8.74
337
5.79
5.99
6.20
228
3.81
3.91
3.99
150
0.41
0.635
1.27
16
0.25
0.50
10
1.4732 REF
0.20
0.33
8
0.20
8
0°
8°
0°
0°
0°
5°
10°
15°
5°
MO-137 (AD)
OZ964-DS-1.2
MIL
NOM
MAX
64
69
6
10
59
12
10
25 BASIC
341
344
236
244
154
157
25
50
20
58 REF
13
8°
10°
15°
Page 11
OZ964
b
11
20
D e ta il X
H
E
1
10
e
c
A
D
Y
S E A T IN G P L A N E
A1
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
PACKAGE INFORMATION – 20-PIN SOIC 300mil: OZ964G
NOTES:
1 . R E F E R T O J E D E C S T D . M S -0 1 3 A C .
2 . D IM E N S IO N S " D " D O E S N O T IN C L U D E M O L D F L A S H , P R O T R U S IO N S O R G A T E B U R R S . M O L D
F L A S H , P R O T R U S IO N S A N D G A T E B U R R S S H A L L N O T E X C E E D 0 .1 5 m m (6 m il) P E R S ID E .
3 . D IM E N S IO N S " E " D O S E N O T IN C L U D E IN T E R L E A D F L A S H O R P R O T U R S IO N S . IN T E R -L E A D
F L A S H A N D P R O T R U S IO N S S H A L L N O T E X C E E D 0 .2 5 m m (1 0 m il) P E R S ID E .
4 . C O N T R O L L IN G D IM E N S IO N : M IL L IM E T E R
h x 45
O
SYMBOL
θ
L
DETAIL "X"
CONFIDENTIAL
A
A1
b
c
D
E
e
H
h
L
Y
θ
MILLIMETERS
NOM
MAX
MIN
2.36
2.54
2.64
0.10
0.20
0.30
0.35
0.406
0.48
0.23
0.254
0.31
12.60
12.80
13.00
7.40
7.50
7.60
1.27 BSC
10.00
10.31
10.65
0.25
0.66
0.75
0.51
0.76
1.02
0.075
0°
8°
OZ964-DS-1.2
MIN
93
4
14
9
496
291
394
10
20
0°
MIL
NOM
100
8
16
10
504
295
50 BSC
406
26
30
-
MAX
104
12
19
12
512
299
419
30
40
3
8°
Page 12
OZ964
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
recipients.
IMPORTANT NOTICE
No portion of O2Micro specifications/datasheets or any of its subparts may be reproduced in any form, or by
any means, without prior written permission from O2Micro.
O2Micro and its subsidiaries reserve the right to make changes to their datasheets and/or products or to
discontinue any product or service without notice, and advise customers to obtain the latest version of
relevant information to verify, before placing orders, that information being relied on is current and complete.
All products are sold subject to the terms and conditions of sale supplied at the time of order
acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability.
O2Micro warrants performance of its products to the specifications applicable at the time of sale in
accordance with O2Micro’s standard warranty. Testing and other quality control techniques are utilized to the
extent O2Micro deems necessary to support this warranty. Specific testing of all parameters of each device
is not necessarily performed, except those mandated by government requirements.
Customer acknowledges that O2Micro products are not designed, manufactured or intended for
incorporation into any systems or products intended for use in connection with life support or other
hazardous activities or environments in which the failure of the O2Micro products could lead to death, bodily
injury, or property or environmental damage (“High Risk Activities”). O2Micro hereby disclaims all warranties,
and O2Micro will have no liability to Customer or any third party, relating to the use of O2Micro products in
connection with any High Risk Activities.
Any support, assistance, recommendation or information (collectively, “Support”) that O2Micro may provide
to you (including, without limitation, regarding the design, development or debugging of your circuit board or
other application) is provided “AS IS.” O2Micro does not make, and hereby disclaims, any warranties
regarding any such Support, including, without limitation, any warranties of merchantability or fitness for a
particular purpose, and any warranty that such Support will be accurate or error free or that your circuit
board or other application will be operational or functional. O2Micro will have no liability to you under any
legal theory in connection with your use of or reliance on such Support.
COPYRIGHT © 2004, O2Micro International Limited
CONFIDENTIAL
OZ964-DS-1.2
Page 13