VNH3ASP30TR-E(2004) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
VNH3ASP30TR-E Datasheet PDF : 18 Pages
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VNH3ASP30-E
Table 3. Pin Definitions And Functions
Pin No
Symbol
Function
1, 25, 30
OUTA, Heat Slug2 Source of High-Side Switch A / Drain of Low-Side Switch A
2,4,7,12,14,17, 22, 24,29 NC
Not connected
3, 13, 23
VCC, Heat Slug1 Drain of High-Side Switches and Power Supply Voltage
6
ENA/DIAGA
Status of High-Side and Low-Side Switches A; Open Drain Output
5
INA
Clockwise Input
8
PWM
PWM Input
9
CS
Output of Current sense
11
10
15, 16, 21
26, 27, 28
18, 19, 20
INB
ENB/DIAGB
OUTB, Heat Slug3
GNDA
GNDB
Counter Clockwise Input
Status of High-Side and Low-Side Switches B; Open Drain Output
Source of High-Side Switch B / Drain of Low-Side Switch B
Source of Low-Side Switch A (*)
Source of Low-Side Switch B (*)
Note: (*) GNDA and GNDB must be externally connected together.
Table 4. Pin Functions Description
Name
VCC
GNDA
GNDB
OUTA
OUTB
INA
INB
PWM
ENA/DIAGA
ENB/DIAGB
CS
Description
Battery connection.
Power grounds, must always be externally connected together.
Power connections to the motor.
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).
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
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).
Analog current sense output. This output sources a current proportional to the motor current. The
information can be read back as an analog voltage across an external resistor.
Table 5. Block Descriptions (see Block Diagram)
Name
LOGIC CONTROL
OVERVOLTAGE + UNDERVOLTAGE
HIGH SIDE AND LOW SIDE CLAMP
VOLTAGE
HIGH SIDE AND LOW SIDE DRIVER
LINEAR CURRENT LIMITER
OVERTEMPERATURE PROTECTION
FAULT DETECTION
Description
Allows the turn-on and the turn-off of the High Side and the Low Side
switches according to the truth table.
Shut-down the device outside the range [5.5V..16V] for the battery
voltage.
Protect the High Side and the Low Side switches from the high voltage
on the battery line in all configuration for the motor.
Drive the gate of the concerned switch to allow a proper RDS(on) for the
leg of the bridge.
Limits the motor current, by reducing the High Side Switch gate-source
voltage when short-circuit to ground occurs.
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.
Signalize an abnormal behavior of the switches in the half-bridge A or
B by pulling low the concerned ENx/DIAGx pin.
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