TLE4263GS 查看數據表（PDF） - Infineon Technologies

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TLE4263GS

5-V Low Drop Voltage Regulator

Infineon Technologies 

TLE 4263

Reset Timing

The power-on reset delay time is defined by the charging time of an external capacitor

CD which can be calculated as follows:

CD = (trd × ID,ch)/∆V

(1)

Definitions:

• CD = delay capacitor

• trd = reset delay time

• ID,ch = charge current, typical 60 µA

• ∆V = VDU, typical 1.70 V

• VDU = upper delay switching threshold at CD for reset delay time

VI

VQ

VQ, rt

VD

VDU

VDRL

trd

trr

VRO

< trr

t

dV

dt

=

ID, ch

CD

t

t

Power-ON

Over-

Voltage Drop Under- Secondary Load

Reset

temperature at Input voltage

Spike Bounce

t

AET03066

Figure 5 Time Response, Watchdog with High-Frequency Clock

Data Sheet

10

Rev. 2.8, 2007-03-20

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