파트넘버.co.kr L9348 데이터시트 PDF


L9348 반도체 회로 부품 판매점

QUAD LOW SIDE DRIVER



STMicroelectronics 로고
STMicroelectronics
L9348 데이터시트, 핀배열, 회로
L9348
QUAD LOW SIDE DRIVER
s SUPPLY VOLTAGE RANGE: 4.8 TO 18V
s OUTPUT VOLTAGE UP TO 40V
s OUTPUT VOLTAGE CLAMP DURING
RECIRCULATION OF INDUCTIVE LOADS
s OUTPUT CURRENT CAPABILITY 2 X 5A AND
2 X 3A
s LOW POWER DISSIPATION DURING
RECIRCULATION OF INDUCTIVE LOADS BY
INTEGRATED FREE WHEELING DIODES
(3A-DRIVERS ONLY)
s LOW ON-RESISTANCE 2 X 0.2, 2 X 0.35(TYP.)
s OUTPUT SHORT CIRCUIT CURRENT
PROTECTION
s REAL TIME DIAGNOSTIC FUNCTIONS
s OVERTEMPERATURE SHUTDOWN
s SIGNAL- AND POWER-GROUND-LOSS
SHUTDOWN
PowerSO-36
BARE DIE
ORDERING NUMBERS:
L9348
L9348-DIE1
s 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
VDD
EN
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
March 2002
C 166kHz
VDD
EN
VREG
PWRES
C 166kHz
PWRES
FAIL
OL
TSD
FB
EN
SCP
GL
GND
VS
1
D3
Q3
EN
PGND3
CHANNEL3
CHANNEL4
D4
Q4
PGND4
3A - DRIVER
1/13


L9348 데이터시트, 핀배열, 회로
L9348
Figure 2. Pin Connection
N.C.
PGND3
Q3
D3
Q1
Q2
D4
Q4
PGND4
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
99AT0074
Table 1. Pin Description
N° Pin
1, 18,
19, 36
N.C. (GND)
2, 3 PGND3 Power Ground Channel 3
4, 5 Q3 Power Output Channel 3 (3A switch)
6, 7 D3 Recirculation Diode Channel 3
8, 9 Q1 Power Output Channel 1 (5A switch)
10, 11
Q2 Power Output Channel 2 (5A switch)
12, 13
D4 Recirculation Diode Channel 4
14, 15
Q4 Power Output Channel 4 (3A switch)
16, 17 PGND4 Power Ground Channel 4
20 ST4 Status Output Channel 4
21 IN2 Control Input Channel 2
22 IN4 Control Input Channel 4
23 ST2 Status Output Channel 2
24 ENA Enable
25, 26 PGND2 Power Ground Channel 2
27 GND Signal Ground
28 VS Supply Voltage
29 N.C. Not Connected
30, 31 PGND1 Power Output Channel 3
32 ST1 Status Output Channel 1
33 IN3 Control Input Channel 3
34 IN1 Control Input Channel 1
36 N.C.
35 ST3
34 IN1
33 IN3
32 ST1
31
30
PGND1
29 N.C.
28 VS
27 GND
26
25
PGND2
24 ENA
23 ST2
22 IN4
21 IN2
20 ST4
19 N.C.
Function
2/13




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L9348 driver

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