MIC5891 반도체 회로 부품 판매점
8-Bit Serial-Input Latched Source Driver
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 Micrel Semiconductor |
MIC5891
Micrel
MIC5891
8-Bit Serial-Input Latched Source Driver
General Description
The MIC5891 latched driver is a high-voltage, high current
integrated circuit comprised of eight CMOS data latches,
CMOS control circuitry for the common STROBE and OUTPUT
ENABLE, and bipolar Darlington transistor drivers for each
latch.
Bipolar/MOS construction provides extremely low power
latches with maximum interface flexibility.
The MIC5891 will typically operate at 5MHz with a 5V logic
supply.
The CMOS inputs are compatible with standard CMOS,
PMOS, and NMOS logic levels. TTL circuits may be used with
appropriate pull-up resistors to ensure a proper logic-high
input.
A CMOS serial data output allows additional drivers to be
cascaded when more than 8 bits are required.
The MIC5891 has open-emitter outputs with suppression
diodes for protection against inductive load transients. The
output transistors are capable of sourcing 500mA and will
sustain at least 35V in the on-state.
Simultaneous operation of all drivers at maximum rated
current requires a reduction in duty cycle due to package
power limitations. Outputs may be paralleled for higher load
current capability.
The MIC5891 is available in a 16-pin plastic DIP package (N)
and 16-pin wide SOIC package (WM).
Features
• High-voltage, high-current outputs
• Output transient protection diodes
• CMOS-, PMOS-, NMOS-, and TTL-compatible inputs
• 5MHz typical data input rate
• Low-power CMOS latches
Applications
• Alphanumeric and bar graph displays
• LED and incandescent displays
• Relay and solenoid drivers
• Other high-power loads
Ordering Information
Part Number Temperature Range
Package
MIC5891BN
–40°C to +85°C
16-Pin Plastic DIP
MIC5891BWM –40°C to +85°C
16-pin Wide SOIC
Functional Diagram
CLOCK
SERIAL
DATA IN
STROBE
GROUND
MOS
BIPOLAR
8-BIT SERIAL PARALLEL SHIFT REGISTER
LATCHES
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
Pin Configurations
SERIAL
DATA OUT
OUTPUT
ENABLE
GROUND 1
CLOCK 2
SERIAL
DATA IN
3
STROBE 4
OUT1 5
OUT2 6
OUT3 7
OUT4 8
16 SERIAL
DATA OUT
SHIFT VDD 15 LOGIC SUPPLY
REGISTER
OE
14
OUTPUT
ENABLE
LATCHES VBB 13 LOAD SUPPLY
12 OUT8
11 OUT7
10 OUT6
9 OUT5
7-54
December 1997
MIC5891
Typical Circuits
IN
VDD
Typical Input Circuit
VBB
Micrel
Absolute Maximum Ratings (Notes 1, 2, 3)
Output Voltage (VOUT) .............................................. 50V
Logic Supply Voltage Range (VDD) ............... 4.5V to 15V
Load Supply Voltage Range (VBB) ................ 5.0V to 50V
Input Voltage Range (VIN) ................. –0.3V to VDD+0.3V
Continuous Collector Current (IC) ........................ 500mA
Package Power Dissipation ............................. see graph
Operating Temperature Range (TA) ...... –55°C to +125°C
Storage Temperature Range (TS) ......... –65°C to +150°C
Note 1: TA = 25°C
Note 2: Derate at the rate of 20mW/°C above TA = 25°C.
Note 3: Micrel CMOS devices have input-static protection but are
susceptible to damage when exposed to extremely high static
electrical charges.
VOUT
Typical Output Circuit
Allowable Package Power
Dissipation vs. Temp.
2.5
2
PDIP
1.5 θJA = 60°C/W
1
0.5 CerDIP
θJA = 90°C/W
0
25 50 75 100 125 150
AMBIENT TEMPERATURE (°C)
Allowable Duty Cycles
Number of
Outputs ON at
IOUT = –200 mA
8
7
6
5
4
3
2
1
Max. Allowable Duty Cycles
at TA of:
50°C
60°C
70°C
53%
60%
70%
83%
100%
100%
100%
100%
47%
54%
64%
75%
94%
100%
100%
100%
41%
48%
56%
67%
84%
100%
100%
100%
7
December 1997
7-55
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제조업체: Micrel Semiconductor
( micrel )
MIC5891 driver
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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관련 데이터시트
MIC5891
8-Bit Serial-Input Latched Source Driver - Microchip
MIC5891
8-Bit Serial-Input Latched Source Driver - Micrel Semiconductor