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PDF L9651 Data sheet ( Hoja de datos )
| Número de pieza | L9651 | |
| Descripción | SMART QUAD SWITCH | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L9651 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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L9651
SMART QUAD SWITCH
s Modified VDMOS Power Stage (UDSBR > 80V)
s RDSON < 500 mOhm (Tj = 25°C)
s CMOS Compatible Inputs
s Enable Input (Reset)
s Outputs Capable of up to 2.2 Amperes
s Outputs Internally Clamped at 70V for Fast
Inductive Load Switch Off
s Wide operating supply voltage from 4.7V up to
30V
DIAGNOSTIC FUNCTIONS
s Open Load Detection (Output off, 100µs-
filtering time)
s Short to Ground Detection (Output off, 100µs -
filtering time)
s Short to Battery Detection (Output on)
s Over temperature detection (Output on)
s Storage of last fault in 8 Bit - Serial Register
s Fault Signal Indication at Serial Data Out
without need to read out the Serial Interface
s Daisy Chainable Serial Diagnostic
BLOCK DIAGRAM
PowerSO-20
ORDERING NUMBER: L9651
s Serial Interface Clock Frequency up to 500kHz
DESCRIPTION
The L9651 consists of four identical low side power
switches. A serial diagnostic interface indicates fail-
ure mode of each switch (short circuit to VBAT or
ground and open load or over temperature).
Turn On
VBAT
Data In
Underv. Shutd.
q
Clock
Sync.
References
Serial Diagnostic
Logic
Four Fold
Gate
Control
April 2001
Fault Detection
q
q
Short Circuit
q
Protection
q
q
Ground
1/9
1 page  
ELECTRICAL CHARACTERISTCS (continued)
Symbol
Parameter
Test Condition
Output voltage monitoring Output off
VOL Open load threshold voltage
(fault detected if VOUTi < VOL)
7.5V < VBAT < 22V
VSG Short to GND threshold voltage 7.5V < VBAT < 22V
(fault detected if VOUTi < VSG)
Open load diagnostic current Output off
Open load output voltage
IOUT = 0 A
VINi = 5V
7.5V < VBAT < 22V
- IOUTi Output current
VOUT = 1V
VINi = 5V
IOUTi Output current
VOUT = VBAT
VINi = 5V
7.5V < VBAT < 22V
Overload Diagnostic
Over temperature diagnostic
TJ
IOUTi Over current
TJ = -40°C
TJ = 25°C
TJ = 150°C
Figure 1. Typical Timing Diagram for Serial Diagnostic
Fault: Short to Battery or over temp.
o. k.
Fault: Open Load or Short to GND
o. k.
< tv
L9651
Min. Typ. Max. Unit
2/3VBAT
1/3VBAT
1/2VBAT
50 100 150
200 320 500
µA
µA
175
3.0 4.3
2.5 3.7
2.2 3.5
°C
A
A
A
H
DI
L
H
SY
L
H
CL
L
H
DO
L
Di1 Di2 Di3
tvhold
tvset
1/fCL
tvDV
Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Di1 Di2 Di3
tv
Shift Register Data Frozen
Reset of Shift Register
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet L9651.PDF ] | |
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