The MAX4820EUP+T is an 8-channel, cascadable relay driver with serial interface in 20 pin TSSOP package. It offer built-in kickback protection and drive +3.3V/+5V nonlatching or dual-coil-latching relays. Device is especially useful when driving +3V relays. Each independent open-drain output features a 2ohm on-resistance and sink 70mA (min) of load current, it consume less than 50μA (max) quiescent current and have 1μA output off-leakage current. Built-in hysteresis (schmitt trigger) on all digital inputs allows this device to be used with slow rising and falling signals from optocouplers or RC power-up initialization circuits. It is used in central office, ATE, DSL, ADSL line cards and E1/T1 redundancy.
- Supply voltage range is 2.3V to 5.5V
- Operating temperature range from -40°C to 85°C
- 8 independent output channels
- SPI-/QSPI-/MICROWIRE compatible serial interface
- SET(complementary) function to turn on all outputs simultaneously
- RESET (complementary) function to turn off all outputs simultaneously
- Turn-on time and turn-off time of 1μs
- Thermal shutdown of 160°C
- Data set time is 100ns
- Serial digital output for daisy chaining
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