L9348(2013) 데이터 시트보기 (PDF) - STMicroelectronics
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L9348 Datasheet PDF : 13 Pages
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L9348
QUAD LOW SIDE DRIVER
■ SUPPLY VOLTAGE RANGE: 4.8 TO 18V
■ OUTPUT VOLTAGE UP TO 40V
■ OUTPUT VOLTAGE CLAMP DURING
RECIRCULATION OF INDUCTIVE LOADS
■ OUTPUT CURRENT CAPABILITY 2 X 5A AND
2 X 3A
■ LOW POWER DISSIPATION DURING
RECIRCULATION OF INDUCTIVE LOADS BY
INTEGRATED FREE WHEELING DIODES
(3A-DRIVERS ONLY)
■ LOW ON-RESISTANCE 2 X 0.2 , 2 X 0.35 (TYP.)
■ OUTPUT SHORT CIRCUIT CURRENT
PROTECTION
■ REAL TIME DIAGNOSTIC FUNCTIONS
■ OVERTEMPERATURE SHUTDOWN
■ SIGNAL- AND POWER-GROUND-LOSS
SHUTDOWN
PowerSO-36
BARE DIE
ORDERING NUMBERS:
L9348
L9348-DIE1
■ 3.3V CMOS COMPATIBLE INPUTS AND
STATUS
DESCRIPTION
The L9348 is a monolithic integrated quad low side
driver realized in advanced Multipower-BCD technol-
ogy. It is intended to drive inductive loads (relays,
electromagnetic valves) in automotive and industrial
applications.
Figure 1. Block Diagram
VS
VS
Voltage Regulator
+
VREG
–
=
VDD
VCC
IN1
ST1
IN2
ST2
ENA
C 166kHz
EN
VDD
FAIL
OL
VREG
SCP
TSD
GL
VS
≥1
Q1
EN
PGND1
PWRES
C 166kHz
PWRES
EN
EN
VDD
PWRES
PWRES
CHANNEL1
CHANNEL2
Q2
PGND2
VS
C 166kHz
5A - DRIVER
IN3
ST3
IN4
ST4
99AT0073
September 2013
C 166kHz
EN
VDD
VREG
PWRES
C 166kHz
PWRES
FAIL
OL
TSD
FB
SCP
GL
EN
GND
VS
≥1
D3
Q3
EN
PGND3
CHANNEL3
CHANNEL4
D4
Q4
PGND4
3A - DRIVER
1/13
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