L9662 Description
The device is intended to deploy up to 8 squibs and to interface up to 4 satellites. 2 satellite interfaces can be used to interface Hall sensors. Squib drivers are sized to deploy 1.2 A minimum for 2 ms, 1.75 A minimum for 1 ms and 1.75 A minimum for 0.65 ms during load dump along with 1.5 A minimum for 2 ms for VRES voltages less than 25.
L9662 Key Features
- 8 deployment drivers with SPI selectable firing current and times
- Capability to deploy the squib with 1.2 A (min)/2 ms, 1.75 A (min)/1.0 ms and 1.75 A (min)/0.65 ms between VRES of 7 V t
- Capability to deploy the squib with 1.5 A (min)/2 ms between VRES of 7 V to 25 V
- Firing capability to deploy all channels simultaneously
- Independently controlled high-side and lowside MOS for diagnosis
- Analog output available for resistance measurement
- Squib short to ground, short to battery and MOS diagnostic available on SPI register
- Capability to deploy the squib the low side MOS is shorted to ground
- 4 Fire enable inputs
- Interface with 4 satellite sensors