Product Summary

The MAX4820EUP is an 8-channel relay driver which offer built-in kickback protection and drive +3.3V/+5V nonlatching or dual-coil-latching relays. It is especially useful when driving +3V relays. The device is available in 20-pin TSSOP and space-saving 20-pin thin QFN packages. The MAX4820EUP feature separate set and reset functions that allow the user to turn on or turn off all outputs simultaneously with a single control line. Built-in hysteresis (Schmidt trigger) on all digital inputs allows this device to be used with slow rising and falling signals, such as those from optocouplers or RC power-up initialization circuits.

Parametrics

MAX4820EUP absolute maximum ratings:(1)VCC, COM:-0.3V to 6.0V;(2)OUT:-0.3V to (VCOM + 0.3V);(3)CS, SCLK, DIN, SET, RESET, A0, A1, A2, LVL:-0.3V to 6.0V;(4)DOUT:-0.3V to (VCC + 0.3V);(5)Continuous OUT_ Current (all outputs turned on):150mA;(6)Continuous OUT_ Current (single output turned on):300mA;(7)Continuous Power Dissipation (TA = +70°C) 20-Lead Thin QFN (derate 16.9mW/°C above +70°C):1350mW, θJA=59.3°C/W;(8)Operating Temperature Range:-40°C to +85°C;(9)Junction Temperature:+150°C;(10)Storage Temperature Range:-65°C to +150°C;(11)Soldering Temperature (10s):+300°C.

Features

MAX4820EUP features:(1)8 Independent Output Channels;(2)Built-In Inductive Kickback Protection;(3)Drive +3V and +5V Relays;(4)Guaranteed 70mA (min) Coil Drive Current;(5)SET Function to Turn On All Outputs Simultaneously;(6)RESET Function to Turn Off All Outputs Simultaneously;(7)SPI-/QSPI-/MICROWIRE-Compatible Serial Interface;(8)Serial Digital Output for Daisy Chaining;(9)Low 50μA (max) Quiescent Supply Current;(10)Space-Saving 20-Pin Thin QFN Package.

Diagrams

MAX4820EUP pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX4820EUP
MAX4820EUP

Maxim Integrated Products

Power Driver ICs

Data Sheet

Negotiable 
MAX4820EUP+
MAX4820EUP+

Maxim Integrated Products

Power Driver ICs 3.3-5V 8Ch Cascade Relay Driver

Data Sheet

0-1: $2.56
1-25: $1.72
25-50: $1.24
50-100: $1.23
MAX4820EUP+T
MAX4820EUP+T

Maxim Integrated Products

Power Driver ICs 3.3-5V 8Ch Cascade Relay Driver

Data Sheet

0-2080: $1.09
2080-2500: $1.09
MAX4820EUP-T
MAX4820EUP-T

Maxim Integrated Products

Power Driver ICs

Data Sheet

Negotiable