General Description
The MIC59P60BWM serial-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, CLOCK, SERIAL DATA INPUT, and OUTPUT ENABLE functions. Additional protection circuitry supplied on this device includes thermal shutdown, undervoltage lockout(UVLO), and overcurrent shutdown.
The bipolar/CMOS combination provides an extremely low-power latch with maximum interface flexibility. TheMIC59P60BWM has open-collector outputs capable of sinking500mA, and integral diodes for inductive load transient suppression with a minimum output breakdown voltage rating of 80V(50V sustaining). The drivers can be operated with a split supply, where the negative supply is down to -20V and may be paralleled for higher load current capability.
Using a 5V logic supply, the MIC59P60BWM will typically operate at better than 5MHz. With a 12V logic supply, significantly higher speeds can be obtained. The CMOS inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL circuits may require pull-up resistors.By using the serial data output, drivers may be cascaded for interface applications requiring additional drive lines.
Each of the eight outputs has an independent overcurrent shutdown of 500mA. Upon over-current shutdown, the affected channel will turn OFF, and the flag will go low until Vop is cycled or the ENABLE/RESET pin is pulsed high.
Current pulses less than 2us will not activate current shutdown.
Temperatures above 165℃ will shut down the device and activate the error flag. The UVLO circuit prevents operation at low Voo; hysteresis of 0.5V is provided.
Features
· 3.3MHz minimum data input rate
· Output current shutdown (500mA typical)
· Undervoltage lockout
· Thermal shutdown
· Output fault flag
· CMOS, PMOS, NMOS, and TTL compatible
· Internal pull-up/pull-down resistors
· Low-power CMOS logic and latches
· High-voltage current sink outputs
· Output transient-protection diodes
· Single or split supply operation
Feature
- 3.3MHz Minimum Data-Input Rate
- Output Current Shutdown (500mA Typical)
- Undervoltage Lockout
- Thermal Shutdown
- Output Fault Flag
- CMOS, PMOS, NMOS, and TTL Compatible
- Internal Pull-Up/Pull-Down Resistors
- Low Power CMOS Logic and Latches
- High Voltage Current Sink Outputs
- Output Transient-Protection Diodes
- Single or Split Supply Operation
(Picture: Pinout)
