MIC58P01

8-Bit Parallel-Input Protected Latched

Driver

General Description

The MIC58P01 parallel-input latched driver is a high-

voltage (80V), high-current (500mA) integrated circuit

comprised

of

eight

CMOS

data

latches,

a

bipolar

Darlington transistor driver for each latch, and CMOS

control circuitry for the common CLEAR, STROBE, and

OUTPUT ENABLE functions. Similar to the MIC5801,

additional protection circuitry supplied on this device

includes thermal shutdown, under voltage lockout (UVLO),

and overcurrent shutdown.

The bipolar/CMOS combination provides an extremely

low-power latch with maximum interface flexibility. The

MIC58P01 has open-collector outputs capable of sinking

500 mA and integral diodes for inductive load transient

suppression with a minimum output breakdown voltage

rating of 80V (50V sustaining). The drivers may be

paralleled for higher load current capability.

With a 5V logic supply, the MIC58P01 will typically operate

at better than 5MHz. With a 12V logic supply, significantly

higher speeds are obtained. The CMOS inputs are

compatible with standard CMOS, PMOS, and NMOS

circuits. TTL circuits may require pull-up resistors.

Each

of

these

eight

outputs

has

an

independent

overcurrent shutdown of 500mA. Upon current shutdown,

ENABLE/RESET pin is pulsed high. Current pulses less

than 2μs will not activate current shutdown. Temperatures

above 165°C will shut down all outputs. The UVLO circuit

provided.

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

Features

• 4.4MHz Minimum Data Input Rate

• High-Voltage, High-Current Outputs

• Per-Output Overcurrent Shutdown (500mA typical)

• Under Voltage Lockout

• Thermal Shutdown

• Output Transient Protection Diodes

• CMOS, PMOS, NMOS, and TTL Compatible Inputs

• Internal Pull-Down Resistors

• Low-Power CMOS Latches

Typical Application

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

June 5, 2015

Revision 2.0