VNF1248F datasheet(15/79 Pages) STMICROELECTRONICS

Part #	VNF1248F

Description	High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications

PDF	79 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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15 / 79 page

Table 20. External FET thermal shutdown via NTC input

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VNTC_FSR

NTC input voltage full-

scale range

VSENSE_N -

1.2

VSENSE_N

VNTC_M

NTC_M output voltage

VSENSE_N -

1.2

VNTC_ACC

NTC input voltage

threshold accuracy

-5

VNTC_THRS_0

External FET thermal

shutdown NTC input

voltage thresholds

110.92

VNTC_THRS_1

98.76

VNTC_THRS_2

88.07

VNTC_THRS_3

78.66

VNTC_THRS_4

70.38

VNTC_THRS_5

63.08

VNTC_THRS_6

56.64

VNTC_THRS_7

50.95

VNTC_THRS_8

45.92

VNTC_THRS_9

41.46

VNTC_THRS_10

37.50

VNTC_THRS_11

37.50

VNTC_THRS_12

37.50

VNTC_THRS_13

37.50

VNTC_THRS_14

37.50

VNTC_THRS_15

37.50

VNTC_DEGLITCH

External FET thermal

shutdown deglitch time

500

µs

VNTC_ADC_CONV

External FET thermal

shutdown ADC full range

resolution(1)

1023

VNTC_ADC_RATE

External FET thermal

shutdown ADC sample

rate

4.9

kSample/s

1. VNTC (V) = VNTC_ADC [9:0] * 1.2 / 1024

RNTC(Ω) = VNTC

∗ RT_REF / (VBG − VNTC).

VNF1248F

Electrical specification

DS14109 - Rev 7

page 15/79

VNF1248F Datasheet(PDF) 15 Page - STMicroelectronics

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