40 V ASIL-D Dual-Channel Intelligent Contactor Driver with Active Clamp and Safe-SPI
AMD89614
The Allegro AMD89614 replaces bulky discrete economizer circuits and expensive relay-packaged electronics with an ASIL-D, dual-channel monolithic driver designed for modern xEV battery disconnect units and fast-charging interfaces. Featuring an integrated active 40 V Zener clamp for sub-millisecond coil disconnects (<1 ms) and programmable closed-loop current regulation with 3% accuracy, it protects high-voltage battery packs from contact welding while extending contactor operating life by up to 50%. With built-in back-EMF movement verification, comprehensive diagnostics, and an addressable Safe-SPI interface, the AMD89614 allows Tier 1s to scale across diverse OEM contactor profiles on a single hardware layout—slashing BOM cost and PCB footprint by up to half.
The AMD89614 is AEC-Q100 Grade 1 qualified and supplied in a thermally enhanced 40-lead, 6 mm × 6 mm QFN package with wettable flanks.
Product Details
Product Details
Top Features
- Integrated high-side and low-side power stage with current control for contactor and relay
- Can drive up to two contactors
- Low sleep mode quiescent current (2 µA typical)
- Programmable pull-in (1.5 to 6 A) and hold (0.3 to 2 A) current profile
- ASIL Compliant: ASIL D safety element out-of-context developed per ISO 26262
Target Application
- Battery Monitor
- DC EV Charging
- Heavy Vehicles-xEV Powertrain
- AC EV Charging
- On-board Charger
