MIC58P01_15 Datasheet, PDF (1/11 Pages) Micrel Semiconductor – 8-Bit Parallel-Input Protected Latched Driver

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,
the affected channel will turn OFF until V_DD is cycled or the
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
disables the outputs at low V_DD; hysteresis of 0.5V is
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 [phone] • fax + 1 [phone] • http://www.micrel.com
June 5, 2015
Revision 2.0