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VNH3SP30 Folha de dados(PDF) 3 Page - STMicroelectronics |
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VNH3SP30 Folha de dados(HTML) 3 Page - STMicroelectronics |
3 / 26 page 3/26 VNH3SP30 PIN FUNCTIONS DESCRIPTION BLOCK DESCRIPTIONS (see Electrical Block Diagram page 4) NAME DESCRIPTION VCC Battery connection. GNDA GNDB Power grounds, must always be externally connected together. OUTA OUTB Power connections to the motor. INA INB Voltage controlled input pins with hysteresis, CMOS compatible. These two pins control the state of the bridge in normal operation according to the truth table (brake to VCC, Brake to GND, clockwise and counterclockwise). PWM Voltage controlled input pin with hysteresis, CMOS compatible. Gates of Low-Side FETS get modulated by the PWM signal during their ON phase allowing speed control of the motor ENA/DIAGA ENB/DIAGB Open drain bidirectional logic pins. These pins must be connected to an external pull up resistor.When externally pulled low, they disable half-bridge A or B. In case of fault detection (thermal shutdown of a High-Side FET or excessive ON state voltage drop across a Low-Side FET), these pins are pulled low by the device (see truth table in fault condition). NAME DESCRIPTION LOGIC CONTROL Allows the turn-on and the turn-off of the High Side and the Low Side switches according to the truth table. OVERVOLTAGE + UNDERVOLTAGE Shut-down the device outside the range [5.5V..36V] for the battery voltage. HIGH SIDE CLAMP VOLTAGE Protect the High-Side switches from the high voltage on the battery line in all configuration for the motor. HIGH SIDE AND LOW SIDE DRIVER Drive the gate of the concerned switch to allow a good RDS(on) for the leg of the bridge. LINEAR CURRENT LIMITER In case of short circuit for the High-Side switch, limits the motor current by reducing its electrical characteristics. OVERTEMPERATURE PROTECTION In case of short-circuit with the increase of the junction’s temperature, shuts-down the concerned High-Side to prevent its degradation and to protect the die. FAULT DETECTION Signalize an abnormal behavior of the switches in the half-bridge A or B by pulling low the concerned ENx/DIAGx pin. |
Nº de peça semelhante - VNH3SP30 |
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Descrição semelhante - VNH3SP30 |
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