Melexis MLX83100 Automotive Two-Phase DC Pre-Driver

Melexis MLX83100 Automotive Two-Phase DC Pre-Driver is an IC with an integrated current sense amplifier. This device is used to drive brushed DC motors in combination with a microcontroller and four discrete power N-FETs. The driver controls four external N-FETs for full H-bridge control in the supply range from 4.5V to 28V. Melexis LX83100 Automotive Two-Phase DC Pre-Driver includes various monitoring and protection functions and gate-source voltage monitoring of the external N-FETs. The MLX83100 provides an EEPROM for configure-ability, avoiding the need for a high pin-count package. Applications include water pumps, fuel pumps, engine cooling fans, wipers, sunroofs, blowers, and compressors.

Features

2-phase DC gate driver
- Level shifting between MCU PWM outputs and 2 external half-bridges
- Compatible with 3.3V to 5V microcontrollers
Integrated current sense amplifier
- Low offset and low offset drift
- Fast settling time <1µs
- Programmable gain 8x to 48x
Support supply voltage range
- Absolute maximum rating: 45V
- Operating range: 4.5V to 28V
- 12V to 28V Battery systems
- Automotive qualified for 12V
- Sleep mode with current <30µA
Two-charge pump configuration modes
- Low-voltage operation
- Reverse polarity N-FET protection
High-side gate drivers with bootstrap circuits
- Integrated 12V voltage regulator
- Supports 100% PWM operation

Extensive diagnostics
- Undervoltage/overvoltage detection
- Overtemperature warning
- Programmable V_DS monitoring
- V_GS monitoring
Serial, PWM diagnostics interface
- Configurable diagnostics
- Full diagnostic feedback
User-configurable EEPROM
- Driver configuration
- Diagnostics configuration
Other
- -40°C to +150°C operating tempurature range
- 28-pin TSSOP-EP package
- 4.4mm x 9.8mm dimensions
- AEC-Q100 Grade-0 qualified