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L9959 bảng dữ liệu(PDF) 20 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Single and dual PMOS high-side H-bridge
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L9959 bảng dữ liệu(HTML) 20 Page - STMicroelectronics

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Electrical specifications
L9959
20/49
DocID027540 Rev 2
Note:
If the value of the connected load is below 5 kΩ no Open Load is detected; whereas if the
value of the connected load is more than 50 kΩ, Open Load is detected.
If the load is in the range between (5 to 50) kΩ, the Open Load diagnosis could be not
reliable.
3.6
Temperature dependent current reduction
Note: see also Figure 17: Temperature dependent current reduction.
3.7
Free-wheeling diodes
Table 17. Open-load detection
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
ROL
Open-load detection threshold
-5
-
50
kΩ
tDIAGOL
Open-load diagnosis enable delay
Guaranteed through
scan.
100
-
150
ms
tDIAGOL1 Open-load diagnosis filter time1
2.4
-
3.6
ms
tDIAGOL2 Open-load diagnosis filter time2
200
-
300
μs
Vout1_OFF Out1 voltage regulator
-
1.67
-
1.97
V
Table 18. Retest delay
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
tdelay retest Retest delay for failures: SCB, SCG, SCL Guaranteed through scan. 290
350
410
μs
Table 19. Temperature dependent current reduction
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
|IL_TSD|
Current limit at TSD
-
1.4
2.5
3.6
A
TILR
Start of temperature dependent
current reduction
-
150
165
-
°C
TSD
Thermal shut-down
-
175
-
-
°C
TSD-TILR
Range of temperature dependent
current reduction
-
202530
°C
TfTSD
Thermo-shut-down detection filter time Guaranteed through scan.
6
-
18
μs
Table 20. Free-wheel diodes
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
UD
Free-wheeling diode forward voltage
IOUT = 3 A
-
-
2
V
Tit(1)
Free-wheeling diode reverse recovery time
-
-
-
100
ns
1. Not subject to production test; specified by design.



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