MIC5891 Datasheet, PDF (1/18 Pages) Micrel Semiconductor – 8-Bit Serial-Input Latched Source Driver

MIC5891
8-Bit Serial-Input Latched Source Driver
Features
• High-Voltage, High-Current Outputs
• Output Transient Protection Diodes
• CMOS-, PMOS-, NMOS-, and TTL-Compatible
Inputs
• 5 MHz 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
Package Type
MIC5891
16-PIN PDIP OR SOICW
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 V_BB 13 LOAD SUPPLY
12 OUT₈
11 OUT₇
10 OUT₆
9 OUT₅
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 5 MHz 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 500 mA 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).
 2016 Microchip Technology Inc.
DS20005638A-page 1