The VNH2SP30-E is a full bridge motor driver intended for a wide range of applications. The device incorporates a dual monolithic high side driver and two low side switches. The high side driver switch is designed using STMicroelectronics well known and proven proprietary VIPower™ M0 technology which permits efficient integration on the same die of a true power MOSFET with intelligent signal/protection circuitry.
The low side switches are vertical MOSFETs manufactured using STMicroelectronics proprietary EHD (STripFET™) process. The three die are assembled in a MultiPowerSO-30 package on electrically isolated leadframes.
This package, specifically designed for harsh environments, offers improved thermal performance thanks to exposed die pads.
The input signals INA and INB can directly interface with the microcontroller to select the motor direction and brake condition. The DIAGA/ENA or DIAGB/ENB, when connected to an external pull-up resistor, enable one leg of the bridge. They also provide a feedback digital diagnostic signal.
The motor current can be monitored with the CS pin by delivering a current proportional to its value. The speed of the motor can be controlled in all possible conditions by the PWM up to 20 kHz. In all cases, a low level state on the PWM pin will turn off both the LSA and LSB switches. When PWM rises to a high level, LSA or LSB turn on again depending on the input pin state.
The VNH2SP30-E has many integrated protective circuits: – The maximum operating voltage is 16V; an over-voltage protection will shut down at higher voltages. The maximum supply voltage without damaging the circuit must not exceed 41V.
– The maximum output current is 30A; an over-current protection will shut down at higher output currents (typically 50A).
– The maximum operating temperature is 150 degrees Celsius. A thermal protection circuit will shut down at higher die temperatures, and reset at 135 degrees celsius.