TLE4263-2ES 查看數據表（PDF） - Infineon Technologies

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TLE4263-2ES

5-V Low Dropout Voltage Regulator

Infineon Technologies 

TLE4263-2ES

Electrical Characteristics

5.9

Watchdog Function

Electrical Characteristics Watchdog Function

VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin

(unless otherwise specified)

Pos. Parameter

Symbol

Limit Values

Unit Conditions

Min. Typ. Max.

5.9.1

5.9.2

5.9.3

5.9.4

Discharge Current

Upper Timing Threshold

Lower Timing Threshold

Watchdog Trigger Time

5.9.5 Watchdog Output Low Time

5.9.6

Watchdog Period

TWI,p = TWD,L + TWI,tr

ID,wd

VDU

VDWL

TWI,tr

TWD,L

TWI,p

4.40 6.25 9.40 µA

1.40 1.70 2.20 V

0.20 0.35 0.55 V

16

22.5 27

ms

1

2.1

3.5

ms

17

24.6 30.5 ms

VD = 1.0 V

–

–

CD = 100 nF

VQ > VQ,RT

CD = 100 nF

VQ > VQ,RT

CD = 100 nF

VQ > VQ,RT

5.10

Typical Performance Characteristics Watchdog

Charge Current and Discharge Current

versus Temperature

80

µA

Ι 70

60

AED03064

Ι D, ch

50

V Ι = 13.5 V

V D = 1.5 V

40

30

20

10

Ι D, dis

0

-40 0 40 80 120 C 160

Tj

Watchdog Trigger Time

versus Temperature

40

ms

TWI,tr 35

AED03065_4263

30

25

V Ι = 13.5 V

CD = 100 nF

20

15

10

5

0

-40 0 40 80 120 C 160

Tj

Data Sheet

15

Rev. 1.0, 2008-04-21

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