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VNH2SP30-E：AUTOMOTIVE FULLY INTEGRATED H-BRIDGE MOTOR DRIVER

The VNH2SP30-E is a full bridge motor driver intended for a wide range of automotive applications. The device incorporates a dual monolithic high side driver and two low side switches. The high side driver switch is designed using STMicroelectronic’s well known and proven proprietary VIPower™ M0 technology which permits efficient integration on the same die of a true Power MOSFET with an intelligent signal/protection circuitry.

The low side switches are vertical MOSFETs manufactured using STMicroelectronic’s proprietary EHD (`STripFET™’) process. The three die are assembled in the MultiPowerSO-30 package on electrically isolated leadframes. This package, specifically designed for the harsh automotive environment offers improved thermal performance thanks to exposed die pads.

Moreover, its fully symmetrical mechanical design allows superior manufacturability at board level.

The input signals INA and INB can directly interface to the microcontroller to select the motor direction and the brake condition. The DIAG_A/EN_A or DIAG_B/EN_B, when connected to an external pull-up resistor, enable one leg of the bridge. They also provide a feedback digital diagnostic signal. The normal condition operation is explained in Table 12: Truth table in normal operating conditions on page 14. 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 LS_A and LS_B switches. When PWM rises to a high level, LS_A or LS_B turn on again depending on the input pin state.

Key Features

• Current sense output proportional to motor current
• Protection against loss of ground and loss of VCC
• Package: ECOPACK®
• Very low stand-by power consumption
• Linear current limiter
• 5V logic level compatible inputs
• Overvoltage clamp
• Undervoltage and overvoltage shut-down
• Cross-conduction protection
• PWM operation up to 20 kHz
• Thermal shut down

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