MIC5821YN

The MIC5821YN from Micrel Inc. is an 8-bit serial-input latched driver designed for applications requiring moderate to high current loads. Utilizing BiCMOS technology, it integrates an eight-bit CMOS shift register, CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sink Darlington output drivers. The outputs are rated for 500mA, making them suitable for driving incandescent bulbs and similar loads.

This device supports single or split supply operation, with the negative supply down to -20V. It boasts a minimum data-input rate of 3.3 MHz and is compatible with CMOS, PMOS, NMOS, and TTL logic levels. The drivers can be cascaded using the serial data output for applications requiring additional drive lines.

The MIC5821YN is housed in a 16-pin Plastic DIP package and is designed for through-hole mounting. It operates within a temperature range of -55°C to +85°C, with a maximum package power dissipation of 1.67W. The absolute maximum output voltage ratings are 50V for the MIC5821 and 80V for the MIC5822, with specific ratings for inductive load applications.

Key electrical specifications include a logic supply voltage up to 15V and an emitter supply voltage down to -20V. The input voltage range is -0.3V to VDD + 0.3V. These drivers are suitable for various interface applications where controlled current sinking is required.