|
|
零件编号 | L9348 | ||
描述 | QUAD LOW SIDE DRIVER | ||
制造商 | STMicroelectronics | ||
LOGO | |||
1 Page
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 0.2Ω , 2 X 0.35Ω (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
2.0 TIMING DIAGRAMS
Figure 3. Output slope with Resistive Load
VIN
VQ
100% V Q
85% V Q
tON tf
15% V Q
99AT0061
note: parameters are not shown proportionally
Figure 4. Diagnostic Output at PWM operation
VIN
IQ
IQU
99AT0063
VST
tD
note: parameters are not shown proportionally
tOFF tr
t
t
t
t
tD t
delayed status signal
8/13
|
|||
页数 | 13 页 | ||
下载 | [ L9348.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
L9341 | QUAD LOW SIDE DRIVER | STMicroelectronics |
L9341H | QUAD LOW SIDE DRIVER | STMicroelectronics |
L9341V | QUAD LOW SIDE DRIVER | STMicroelectronics |
L9346 | QUAD INTELLIGENT POWER LOW SIDE SWITCH | STMicroelectronics |
零件编号 | 描述 | 制造商 |
STK15C88 | 256-Kbit (32 K x 8) PowerStore nvSRAM | Cypress Semiconductor |
NJM4556 | DUAL HIGH CURRENT OPERATIONAL AMPLIFIER | New Japan Radio |
EL1118-G | 5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLER | Everlight |
DataSheet8.cn | 2020 | 联系我们 | 搜索 | Simemap |