Micrel MIC5841BWM 8-bit serial-input latched driver Datasheet

MIC5841/5842
8-Bit Serial-Input Latched Drivers
General Description
Using BiCMOS technology, the MIC5841/5842 integrated
circuits were fabricated to be used in a wide variety of
peripheral power driver applications. The devices each
have an eight-bit CMOS shift register, CMOS control
circuitry, eight CMOS data latches, and eight bipolar
current-sink Darlington output drivers.
These two devices differ only in maximum voltage ratings.
The MIC5842 offers premium performance with a
minimum output breakdown voltage rating of 80V (50V
sustaining). The drivers can be operated with a split supply
where the negative supply is down to –20V.
The 500mA outputs, with integral transient-suppression
diodes, are suitable for use with lamps, relays, solenoids
and other inductive loads.
These devices have improved speed characteristics. With
a 5V logic supply, they will typically operate faster than
5 MHz. With a 12V supply, significantly higher speeds are
obtained. The CMOS inputs are compatible with standard
CMOS, PMOS, and NMOS logic levels. TTL or DTL
circuits may require the use of appropriate pull-up
resistors. By using the serial data output, the drivers can
be cascaded for interface applications requiring additional
drive lines.
The MIC5840 family is available in DIP, PLCC, and SOIC
packages. Because of limitations on package power
dissipation, the simultaneous operation of all drivers at
maximum rated current might require a reduction in duty
cycle. A copper-alloy lead frame provides for maximum
package power dissipation.
Features
•
•
•
•
•
•
•
3.3 MHz Minimum Data-Input Rate
CMOS, PMOS, NMOS, TTL Compatible
Internal Pull-Up/Pull-Down Resistors
Low-Power CMOS Logic and Latches
High-Voltage Current-Sink Outputs
Output Transient-Protection Diodes
Single or Split Supply Operation
Ordering Information
Part Number
Standard
Temperature Range
Package
Pb-Free
MIC5841BN
MIC5841YN
–40ºC to +85ºC
18-Pin Plastic DIP
MIC5841BV
MIC5841YV
–40ºC to +85ºC
20-Pin PLCC
MIC5841BWM
MIC5841YWM
–40ºC to +85ºC
18-Pin Wide SOIC
MIC5842BN
MIC5842YN
–40ºC to +85ºC
18-Pin Plastic DIP
MIC5842BV
MIC5842YV
–40ºC to +85ºC
20-Pin PLCC
MIC5842BWM
MIC5842YWM
–40ºC to +85ºC
18-Pin Wide SOIC
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
May 2006
M9999-050506
(408) 955-1690
Micrel, Inc.
MIC5841/42
Functional Diagram
CLK
1
6
SERIAL
DATA IN 3
8 - B IT S E R IA L - P A R A L L E L S H IFT R E GIS T E R
5
VS S
4
L A TC H E S
7
8
SERIAL
DATA OUT
VDD
STROBE
OUTPUT ENABLE
(ACTIVE LOW)
MOS
Bipolar
Sub
1
K
May 2006
10
18
17
16
15
14
13
12
9
VE E
11
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
2
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(408) 955-1690
Micrel, Inc.
MIC5841/42
Absolute Maximum Ratings(1,2,3)
Emitter Supply Voltage, VEE ...................................–20V
Input Voltage Range, VIN ............... –0.3V to VDD + 0.3V
Continuous Output Current, IOUT .........................500mA
Package Power Dissipation, PD(2) ........................1.82W
Operating Temperature Range, TA .......–55°C to +85°C
Storage Temperature Range, TS ........–65°C to +150°C
At 25°C Free-Air Temperature and VSS ................... 0V
Output Voltage, VCE (MIC5841) ............................. 50V
(MIC5842) .............................. 80V
Output Voltage, VCE(SUS) (MIC5841)(1).................................. 35V
(MIC5842) ........................ 50V
Logic Supply Voltage, VDD ....................................... 15V
VDD with Reference to VEE ..................................... 25V
Electrical Characteristics
At TA = 25°C VDD = 5V, VSS = VEE = 0V (unless otherwise noted)
Limits
Characteristic
Symbol
Output Leakage Current
ICEX
Applicable Devices
MIC5841
MIC5842
Collector-Emitter Saturation Voltage
VCE(SAT)
Collector-Emitter Saturation Voltage
VCE(SUS)(5)
Input Voltage
VIN(0)
VIN(1)
Both
MIC5841
MIC5842
Both
Both
Input Resistance
RIN
Both
Supply Current
IDD(ON)
Both
IDD(OFF)
Both
Clamp Diode Leakage Current
IR
Clamp Diode Forward Voltage
VF
May 2006
MIC5841
MIC5842
Both
3
Test Conditions
VOUT = 50V
VOUT = 50V, TA = +70ºC
VOUT = 80V
VOUT = 80V, TA = +70ºC
IOUT = 100mA
IOUT = 200mA
IOUT = 350mA, VDD = 7.0V
IOUT = 350mA, L = 2mH
IOUT = 350mA, L = 2mH
Min
Max
Unit
50
100
50
100
1.1
1.3
1.6
µA
V
35
50
0.8
VDD = 12V
VDD = 10V
VDD = 5.0V(4)
VDD = 12V
VDD = 10V
VDD = 5.0V
All Drivers ON, VDD = 12V
All Drivers ON, VDD = 10V
All Drivers ON, VDD = 5.0V
All Drivers OFF, VDD = 12V
All Drivers OFF, VDD = 10V
All Drivers OFF, VDD = 5.0V
VR = 50V
VR = 80V
IF = 350mA
V
10.5
8.5
3.5
50
50
50
V
kΩ
16
14
8.0
2.9
2.5
1.6
50
50
2.0
1.6
µA
V
M9999-050506
(408) 955-1690
Micrel, Inc.
MIC5841/42
Electrical Characteristics
At TA = –55°C VDD = 5V, VSS = VEE = 0V (unless otherwise noted)
Limits
Characteristic
Symbol
Test Conditions
Output Leakage Current
Collector-Emitter Saturation Voltage
ICEX
VCE(SAT)
VOUT = 80V
IOUT = 100mA
IOUT = 200mA
IOUT = 350mA, VDD = 7.0V
Input Voltage
VIN(0)
VIN(1)
Input Resistance
RIN
Supply Current
IDD(ON)
IDD(OFF)
VDD = 12V
VDD = 5.0V
VDD = 12V
VDD = 10V
VDD = 5.0V
All Drivers ON, VDD = 12V
All Drivers ON, VDD = 10V
All Drivers ON, VDD = 5.0V
All Drivers OFF, VDD = 12V
All Drivers OFF, VDD = 5.0V
Min
Max
Unit
50
1.3
1.5
1.8
0.8
µA
V
10.5
3.5
35
35
35
V
kΩ
16
14
10
3.5
2.0
mA
Electrical Characteristics
At TA = +125°C VDD = 5V, VSS = VEE = 0V (unless otherwise noted)
Limits
Characteristic
Symbol
Test Conditions
Output Leakage Current
Collector-Emitter Saturation Voltage
ICEX
VCE(SAT)
VOUT = 80V
IOUT = 100mA
IOUT = 200mA
IOUT = 350mA, VDD = 7.0V
Input Voltage
VIN(0)
VIN(1)
Input Resistance
RIN
Supply Current
IDD(ON)
IDD(OFF)
Clamp Diode Leakage Current
IR
VDD = 12V
VDD = 5.0V
VDD = 12V
VDD = 10V
VDD = 5.0V
All Drivers ON, VDD = 12V
All Drivers ON, VDD = 10V
All Drivers ON, VDD = 5.0V
All Drivers OFF, VDD = 12V
All Drivers OFF, VDD = 5.0V
MIC5841A VR = 50V
MIC5842A VR = 80V
Min
Max
Unit
500
1.3
1.5
1.8
0.8
µA
V
10.5
3.5
50
50
50
V
kΩ
16
14
8
2.9
2.1.6
1.6
100
mA
µA
Notes:
1. For Inductive load applications.
2. Derate at the rate of 18.2mW/°C above TA = 25°C (Plastic DIP)
3. CMOS devices have input-static protection but are susceptible to damage when exposed to extremely high static electrical charges.
4. Operation of these devices with standard TTL may require the use of appropriate pull-up resistors to insure an input logic HIGH.
5. Not 100% tested. Guaranteed by design.
May 2006
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Micrel, Inc.
MIC5841/42
Timing Conditions
(TA = 25°C Logic Levels are VDD and VSS)
VDD = 5V
A. Minimum Data Active Time Before Clock Pulse (Data Set-Up Time)...................................................................... 75 ns
B. Minimum Data Active Time After Clock Pulse (Data Hold Time) ............................................................................ 75 ns
C. Minimum Data Pulse Width ................................................................................................................................... 150 ns
D. Minimum Clock Pulse Width................................................................................................................................... 150 ns
E. Minimum Time Between Clock Activation and Strobe ........................................................................................... 300 ns
F. Minimum Strobe Pulse Width.................................................................................................................................. 100 ns
G. Typical Time Between Strobe Activation and Output Transition............................................................................ 500 ns
SERIAL DATA present at the input is transferred to the shift register on the logic “0” to logic “1” transition of the CLOCK
input pulse. On succeeding CLOCK pulses, the registers shift data information towards the SERIAL DATA OUTPUT. The
SERIAL DATA must appear at the input prior to the rising edge of the CLOCK input waveform.
Information present at any register is transferred to its respective latch when the STROBE is high (serial-to-parallel
conversion). The latches will continue to accept new data as long as the STROBE is held high. Applications where the
latches are bypassed (STROBE tied high) will require that the ENABLE input be high during serial data entry.
When the ENABLE input is high, all of the output buffers are disabled (OFF) without affecting information stored in the
latches or shift register. With the ENABLE input low, the outputs are controlled by the state of the latches.
MIC5840 Family Truth Table
Serial
Data
Input
Clock
Input
Shift Register Contents
Serial
Data
Output
I1
I2
I3
…
I8
H
H
R1
R2
…
R7
R7
L
L
R1
R2
…
R7
R7
X
R1
R2
R3
…
R8
R8
Latch Contents
Strobe
Input
I1
I2
I3
…
I8
Output Contents
Output
Enable
I1
I2
I3
…
I8
X
X
X
…
X
X
L
R1
R2
R3
…
R8
P1
P2
P3
…
P8
P8
H
P1
P2
P3
…
P8
L
P1
P2
P3
…
P8
X
X
X
…
X
H
H
H
H
…
H
L = Low Logic Level
H = High Logic Level
X = Irrelevant
P = Present State
R = Previous State
May 2006
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Micrel, Inc.
MIC5841/42
Typical Output Driver
Typical Input Circuits
Maximum Allowable Duty Cycle (Plastic DIP)
VDD = 5.0V
Number of Outputs ON
(IOUT = 200mA
VDD = 5.0V)
25ºC
40ºC
50ºC
60ºC
70ºC
8
85%
72%
64%
55%
46%
Max. Allowable Duty Cycle at Ambient Temperature of
7
97%
82%
73%
63%
53%
6
100%
96%
85%
73%
62%
5
100%
100%
100%
88%
75%
4
100%
100%
100%
100%
93%
3
100%
100%
100%
100%
100%
2
100%
100%
100%
100%
100%
1
100%
100%
100%
100%
100%
VDD = 12V
Number of Outputs ON
(IOUT = 200mA
VDD = 12V)
25ºC
40ºC
50ºC
60ºC
70ºC
8
80%
68%
60%
52%
44%
7
91%
77%
68%
59%
50%
6
100%
90%
79%
69%
58%
5
100%
100%
95%
82%
69%
4
100%
100%
100%
100%
86%
3
100%
100%
100%
100%
100%
2
100%
100%
100%
100%
100%
1
100%
100%
100%
100%
100%
May 2006
Max. Allowable Duty Cycle at Ambient Temperature of
6
M9999-050506
(408) 955-1690
Micrel, Inc.
MIC5841/42
Typical Applications
May 2006
Relay/Solenoid Driver MIC5842
MIC5841 Hammer Driver
MIC5841 Solenoid Driver with Output Enable
MIC5841 Level Shifting Lamp Driver with
Darlington Emitters Tied to a Negative Supply
7
M9999-050506
(408) 955-1690
Micrel, Inc.
MIC5841/42
Typical Applications, Continued
CLOCK
+75V
DATA IN
10k
STROBE
15
18
1
0.01µ
4 VSS
5 VDD
6
15
10k
14
D2
1000p
10k
25
11
1000p
100µ
10
9
0.01µ
+
–5V
Receiver
RFC
+75V
SUB
Receive
Transmit
RFC
RFC
+75V
12
8 OE
Antenna
25
13
7 ST
Transmitter
D1
+75V
16
LATCHES
3
+5V
17
C
SHIFT REGISTER
2
RFC
1000p
SUB
D3
0.01µ
D1
(Latch 1)
OFF
ACTIVE
Diode
D2
(Latch 5)
ACTIVE
OFF
D3
(Latch 8)
OFF
ACTIVE
PIN Diodes:
UM9651
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its
use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 1998 Micrel, Incorporated.
May 2006
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