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STPIC44L02 Fiches technique(PDF) 4 Page - STMicroelectronics

No de pièce STPIC44L02
Description  4 CHANNEL SERIAL AND PARALLEL LOW SIDE PRE-FET DRIVER
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPIC44L02 Fiches technique(HTML) 4 Page - STMicroelectronics

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PIN DESCRIPTION
PIN No
SYMBOL
I/O
NAME AND FUNCTION
1FLT
I
Fault Flag. FLT is a logic level open-drain output that provides a real time fault flag for
shorted-load, open-load, over-battery voltage, under-battery voltage faults. The
device can be ORed with FLT terminals on other devices for interrupt handling. FLT
requires an external pull-up resistor.
2
VCOMPEN
I
Fault reference voltage select. VCOMPEN selects the internally generated fault
reference voltage (0) or an external fault reference (1) to be used in the shorted and
open load fault detection circuitry.
3
VCOMP
I
Fault reference voltage. VCOMP provides an external fault reference voltage for the
shorted-load and open load fault detection circuitry.
4
5
6
7
IN0
IN1
IN2
IN3
I
Parallel gate driver. IN0 trough In3 are real-time controls for the gate pre drive
circuitry. They are CMOS compatible with hysteresis.
8CS
I
Chip select. A high to low transition on CS enables SDO, latches fault data into the
serial interface, and refreshes FLT. When CS is high, the fault register can change
fault status. On the falling edge of CS, fault data is latched into the serial output
register and transferred using SDO and SCLK. On a low to high transition of CS,
serial data is latched in to the output control register.
9
SDO
O
Serial data output. SDO is a 3-state output that transfers fault data to the controlling
device. It also passes serial input data to the next stage for cascaded operation. SDO
is taken to a high-impedance state when CS is in a high state.
10
SDI
I
Serial data input. Output control data is clocked into the serial register through SDI. A
1 on SDI commands a particular gate output on and a 0 turns it off.
11
SCLK
I
Serial clock. SCLK clocks the shift register. Serial data is clocked into SDI and serial
fault data is clocked out of SDO on the falling edge of the serial clock.
12
VCC
I
Logic Supply Voltage
13
GND
I
Ground
14
16
19
21
DRAIN0
DRAIN1
DRAIN2
DRAIN3
I
FET drain inputs. DRAIN0 through DRAIN3 are used for both open load and short
circuit fault detection at the drain of the external FETs. They are also used for
inductive transient protection.
15
17
18
20
GATE0
GATE1
GATE2
GATE3
O
Gate drive output. GATE0 through GATE3 outputs are derived from the VBAT supply
voltage. Internal clamps prevent voltages on these nodes from exceeding the VGS
rating of most FETs.
22
RESET
I
Reset. A high-to low transition of RESET clears all registers and flags. Gate outputs
turn off and the FLT flag is cleared.
23
NC
Not Connected
24
VBAT
I
Battery Supply Voltage


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