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VNF1048F Datasheet(PDF) 7 Page - STMicroelectronics

No. de pieza VNF1048F
Descripción Electrónicos  High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications
PDF  49 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNF1048F Datasheet(HTML) 7 Page - STMicroelectronics

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Symbol
Parameter
Test conditions Min. Typ. Max.
Unit
TTSD_HYS
Junction temperature thermal shutdown hysteresis
15
°C
TJ_ADC_CONV Junction temperature ADC full scale range resolution
TJ_ADC[9:0] =
(TJ + 72) * 3
0
1023
TJ_ADC_RATE Junction temperature ADC sample rate
10
kSamples/s
Table 10. ST-SPI timings specification
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
fC
SPI clock frequency
8
MHz
tWHCH
CSN low timeout
VSPI = 3.3 V,
ext RPROT < 1 kΩ
30
70
ms
tWDTB
Watchdog toggle bit timeout.WD_TIME configuration:
00
-10%
50
+10%
ms
01
100
10
150
11
200
tSTBY_OUT
Minimum time during which CSN must be toggled low to go out of
STDBY mode
20
100
µs
Table 11. Charge pump specification
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VCP_6V
Charge pump output voltage
VS = 6V
VS + 7
VS + 11
V
VCP_10V
Charge pump output voltage
VS > 10 V
VS + 13.5 VS + 14.5 VS + 15.5
V
VCP_LOW_H
Charge pump output undervoltage high
threshold
Ramp up on VCP
VS + 5.5
VS + 6
VS + 6.5
V
VCP_LOW_L
Charge pump output undervoltage low threshold Ramp down on VCP VS + 5.1
VS + 5.6
VS + 6.2
V
VCP_LOW_hyst Charge pump output undervoltage hysteresis
0.4
V
fCP
Charge pump frequency
-5%
400
+5%
kHz
tCP_RISE
Charge pump low (CP_LOW diagnostic) rising
edge filtering time
-5%
60
+5%
µs
tCP_FALL
Charge pump low (CP_LOW diagnostic) falling
edge filtering time
-10%
2.3
+10%
µs
Table 12. External FET gate driver specification
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VGSON_6V
Gate-On voltage
VS = 6 V, IG = 50 µA
6
V
VGSON_10V
Gate-On voltage
VS > 10 V, IG = 50 µA
12
15
V
VGSOFF
Gate-Off voltage
0.5
V
VGSMAX
Maximum gate voltage
(internally limited)
20
V
tON
Gate turn-on
VGS = 0.5 V to VGS = 10 V
CGATE = 80 nF
4
µs
tOFF
Gate turn-off
Full VGS to VGS < 0.5,
CGATE = 80 nF
2.6
µs
VNF1048F
Electrical specification
DS13084 - Rev 8
page 7/49



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