Part # MAX4822-MAX4825 datasheet

Part Manufacturer: Maxim


Part Description: MAX4822 DS

Part Details:

19-3789; Rev 0; 8/05 +3.3V/+5V, 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode MAX4822­MAX4825 General Description Features The MAX4822­MAX4825 8-channel relay drivers offer Built-In Zener Kickback Protection for Fast built-in kickback protection and drive +3V/+5V non- Recovery latching or dual-coil-latching relays. Each independent open-drain output features a 2.7 (typ) on-resistance Programmable Power-Save Mode Reduces Relay and is guaranteed to sink 70mA (min) of load current. Power Consumption (MAX4822/MAX4824) These devices consume less than 300µA (max) quies- 10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial cent current and have 1µA output off-leakage current. Interface A Zener-kickback-protection circuit significantly reduces recovery time in applications where switching Eight Independent Output Channels speed is critical. Drive +3V and +5V Relays The MAX4822/MAX4824 feature a unique power-save Guaranteed 70mA (min) Coil Drive Current mode where the relay current, after activation, can be Guaranteed 5 (max) R reduced to a level just above the relay hold-current ON threshold. This mode keeps the relay activated while SET / RESET Functions to Turn On/Off All significantly reducing the power consumption. Outputs Simultaneously The MAX4822/MAX4823 feature a 10MHz SPITM-/ Serial Digital Output for Daisy Chaining QSPITM-/MICROWIRETM-compatible serial interface. Optional Parallel Interface (MAX4824/MAX4825) Input data is shifted into a shift register and latched tothe outputs when CS transitions from low to high. Each Low 300µA (max) Quiescent Supply Current data bit in the shift register corresponds to a specific Space-Saving, 4mm x 4mm, 20-Pin TQFN Package output, allowing independent control of all outputs. The MAX4824/MAX4825 feature a 4-bit parallel-inputinterface. The first 3 bits (A0, A1, A2) determine the out-put address, and the fourth bit (LVL) determines whetherthe selected output is switched on or off. Data is latched Ordering Information to the outputs when CS transitions from low to high. The MAX4822­MAX4825 feature separate set and reset PIN- PACKAGE PART TEMP RANGE functions, allowing turn-on or turn-off of all outputs PACKAGE

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MAX4822-MAX4825.pdf Datasheet