Datasheet

 2016 Microchip Technology Inc. DS20005638A-page 1
MIC5891
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
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).
STROBE 4
SERIAL
DATA IN
3
CLOCK
2
GROUND
1
OUT
3
7
OUT
2
6
OUT
1
5
OUT
4
8
LOAD SUPPLY13
OUTPUT
ENABLE
14
LOGIC SUPPLY
15
SERIAL
DATA OUT
16
OUT
6
10
OUT
7
11
OUT
8
12
OUT
5
9
V
BB
V
DD
OE
SHIFT
REGISTER
LATCHES
MIC5891
16-PIN PDIP OR SOICW
8-Bit Serial-Input Latched Source Driver