MAX14916: industry's smallest octal industrial 1A/quad 2A high side switch with diagnostics
The SPI interface on the MAX14916 and MAX14916A has a built-in chip addressing decoder, allowing communication with up to four MAX14916 or MAX14916A devices utilizing a common SPI chip select (CS).
The SPI interface provides flexibility for global and per-channel configuration and diagnostic, including undervoltage detection, open-wire detection, overload and current limiting reporting, thermal conditions reporting, and more.
Each channel is equipped with open-wire detection that can detect an open-load in both switch on and off states. LED drivers provide indication of per-channel fault, status, and supply undervoltage conditions. Internal active clamps allow for fast turn-off of inductive loads.
Integrated line-to-ground and line-to-line surge protection only requires a single TVS on VDD. Integrated surge protection works for quad and octal configuration.
The MAX14916 and MAX14916A are available in a compact 48-pin 6mm x 6mm QFN package.
Key Features and Benefits
MAX14916 Current Limit, 1.1A (min) or 1.38A (typ)
MAX14916A Current Limit, 1.5A (min) or 2A (typ)
Robustness and Smart Diagnostics
65V Absolute Maximum Supply Range
Internal Clamps for Fast Inductive Load Demagnetization
CRC Error Checking on the SPI Interface
Watchdog Timer
Open-Wire Detection, with Switches Both in ON and OFF States
Undervoltage Detection with UVLO
Loss of VDD or GND Protection
Thermal Shutdown Protection
Integrated ±1kV/42Ω IEC61000-4-5 Surge Protection
-40°C to +125°C Operating Ambient Temperature
Reduces Power and Heat Dissipation
250mΩ (max) On-Resistance at TA = 125°C
2mA (typ) Supply Current
Accurate Output Current Limiting
Flexibility
Addressable SPI Interface Reduces Isolation Cost
SYNCH Input for Simultaneous Update of Switches
LED Driver Matrix for 16 LEDs, Powered by 24V, 5V, or 3.3V
Flexible Logic Voltage Interface from 2.5V to 5.5VSafety and Regulatory Approvals (Pending)
Compact 6mm x 6mm QFN Package
Applications
Industrial Digital Outputs
PLC Systems
Evaluation Board
The MAX14916 can be evaluated with either the MAX14916PMB or the MAX14916EVKIT.
Block Diagrams and Tables
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