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PDF L9352B Data sheet ( Hoja de datos )
| Número de pieza | L9352B | |
| Descripción | Intelligent quad (2 x 5A / 2 x 2.5A) low-side switch | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L9352B (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
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L9352B
Intelligent quad (2 x 5A / 2 x 2.5A) low-side switch
Features
■ Quad low-side switch
■ 2 x 5 A designed as conventional switch
■ 2 x 2.5 A designed as switched current-
regulator
■ Low ON-resistance 4 x 0.2 Ω (typ.)
■ PowerSO-36 - package with integrated cooling
area
■ Integrated free-wheeling and clamping Z-
diodes
■ Output slope control
■ Short circuit protection
■ Selective overtemperature shutdown
■ Open load detection
■ Ground and supply loss detection
■ External clock control
■ Recirculation control
■ Regulator drift detection
■ Regulator error control
■ Status monitoring
PowerSO-36
■ status push-pull stages
■ Electrostatic discharge (ESD) protection
Description
The L9352B is an integrated quad low-side power
switch to drive inductive loads like valves used in
ABS systems. Two of the four channels are
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current regulators with current range from 0 mA to
2.25 A.
All channels are protected against fail functions.
They are monitored by a status output.
Table 1.
Device summary
Order code
Package(1)
L9352B-LF
L9352B-TR-LF
PowerSO-36
PowerSO-36
1. ECOPACK® package (see Section 6: Package information).
Packing
Tray
Tape and reel
September 2008
Rev 6
1/27
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1
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
L9352B
1 Block diagram
Figure 1. Block diagram
VS VCC VDD
Internal Supply
EN
CLK
Overtemperature
Channel 4
Overtemperature
Channel 1
Open Load
IN1 Overload
LOGIC
ST1
IN4
ST4
IN2
GND-det.
Open Load
LOGIC
&
DA
Overload
GND-det.
Overtemperature
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Channel 3
Overtemperature
Channel 2
Open Load
LOGIC
Overload
ST2
IN3
ST3
TEST
LOGIC
&
DA
GND-det.
Open Load
Overload
drift-det.
GND-det.
Block diagram
Q1
IPD
D4
Q4
IPD
Q2
IPD
D3
Q3
IPD
99AT0059
GND
5/27
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
L9352B
Electrical specifications
Table 6.
Symbol
Electrical characteristics (continued)
(VS = 4.8 to 18V; Tj = -40 to 150°C unless otherwise specified)
Parameter
Test condition
Min.
II Input pull down current
VIN = 5V, VS ≥ 6.5V
Digital outputs (ST1 to ST4)
VSTL
VSTH
RDIAGL
RDIAGH
Status output voltage in low state (2)) IST ≤ 40μA
Status output voltage in high state (2)) IST ≥ - 40μA
IST ≥ -120μA
ROUT + RDSON in low state
ROUT + RDSON in high state
Power outputs (Q1 to Q4)
8
0
2.5
2
0.3
1.5
RDSON
VF_250mA
VF_2.25A
Rsens
VZ
IPD
IQlk
Timing
Static drain-source ON-resistance IQ = 1A; VS ≥ 9.5V
Forward voltage of free wheeling path
D3, D4 @250mA
ID3/4 = -250mA
Forward voltage of free wheeling path
D3, D4 @2.25A
ID3/4 = -2.25A
Sense resistor = (VF_2.25A-
VF_250mA)/2A
Z-diode clamping voltage
Output pull down current
Output leakage current
IQ ≥ 100mA
VEN = H, VIN = L
VEN = L; VQ = 20V
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0.5
2.0
45
10
tON
tOFF
tIN3/4min
tOFFREG
tr
tf
tsf
tlf
tSCP
tD
tRE
tDreg
Output ON delay time
Output OFF delay time channel
Minimum Input Register ON time
Output OFF delay time regulator
Output rise time
Output fall time
Short error detection filter time
Long error detection filter time
Short circuit switch-OFF delay time
Status delay time
Regulation error status delay time
Output off status delay time
Reg. current accuracy (reg. channels only)
IQ = 1A
IQ = 1A
(3)
IQ = 1A
IQ = 1A
fCLK = 250kHz DC = 50% (3)
fCLK = 250kHz DC = 50% (3)
(3)
(3)
(3) (reg. channels only)
(3) (reg. channels only
0
0
0.5
0.5
4
16
4
896
IQ3/Q4 Maximum current
DC = 90%
2
Typ.
20
0.64
3.2
0.2
1
5
10
2
528
1.5
1.5
10
528
2.25
Max.
40
0.4
3.45
3.45
1.5
7.0
0.4
1.5
4.5
60
150
5
20
30
8
8
8
32
30
1024
2.5
Unit
μA
V
V
V
kΩ
kΩ
W
V
V
W
V
μA
μA
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ms
μs
A
11/27
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet L9352B.PDF ] | |
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