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VNH5050ATR-E Scheda tecnica(PDF) 5 Page - STMicroelectronics

Il numero della parte VNH5050ATR-E
Spiegazioni elettronici  Automotive fully integrated H-bridge motor driver
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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VNH5050A-E
Block diagram and pin description
Doc ID 16009 Rev 10
5/33
1
Block diagram and pin description
Figure 1.
Block diagram
Table 2.
Block description
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.
Undervoltage/overvoltage
Shuts down the device for battery voltage outside the range
(4,5...24V).
High-side and low-side clamp voltage
Protect the high-side and the low-side switches from high
voltage on the battery line.
High-side and low-side driver
Drive the gate of the concerned switch to allow a proper
RDS(on) for the leg of the bridge.
Current limitation
Limits the motor current in case of short circuit.
High-side and low-side
overtemperature protection
In case of short-circuit with the increase of the junction
temperature, it shuts down the concerned driver to prevent
degradation and to protect the die.
Low-side overload detector
Detects when low-side current exceeds shutdown current
and latches off the concerned low-side.
Fault detection
Signalizes an abnormal condition of the switch (output
shorted to ground or output shorted to battery) by pulling
down the concerned ENx/DIAGx pin.
Power limitation
Limits the power dissipation of the high-side driver inside
safe range in case of short to ground condition.
SOURCE_HSA
1/K
SIGNAL
CLAMP
POWER
LIMITATION
FAULT
DETECTION
OV + UV
LSB_OVERTEMPERATURE
HSB_OVERTEMPERATURE
HSA_OVERTEMPERATURE
LSA_OVERTEMPERATURE
LOGIC
CLAMP_LSA
DRIVER
HSA
CLAMP_HSA
CURRENT
LIMITATION_A
HSA
DRIVER
LSA
LSA
GNDA
OVERLOAD
DETECTOR_A
VCC
DIAGA/ENA INA CS CS_DIS PWM INB
DIAGB/ENB
DRIVER
HSB
HSB
CLAMP_HSB
CURRENT
LIMITATION_B
CLAMP_LSB
LSB
GNDB
DRIVER
LSB
OVERLOAD
DETECTOR_B
SOURCE_HSB
1/K
DRAIN_LSA
DRAIN_LSB


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