TLE4699E datasheet(24/31 Pages) INFINEON

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Data Sheet

Rev. 1.0, 2010-11-30

TLE4699

Reset Function

8.3

Typical Performance Characteristics Reset Function

Undervoltage Reset Switching Thresholds

RT,lo, VRT,hi vs. Tj

Reset Delay Time

d, td,PWR-ON vs.

Delay Capacitor

8.2.15

Power-on Reset Delay Time

d,PWR-ON,100nF

Calculated value;

D = 100 nF

2);

D discharged to 0 V

8.2.16

Internal Reset Reaction Time

rr,int

–915

μs

D = 0 nF

8.2.17

Delay Capacitor

Discharge Time

rr,d,100nF

–1.5

μs

D = 100 nF

8.2.18

Total Reset Reaction Time

rr,total,100nF

–10.5

μs

Calculated Value:

rr,d,100nF + trr,int;

D = 100 nF

1) Related Parameters (

RT,hi, VRT,hy) are scaled linear when the Reset Switching Threshold is modified.

2) For programming a different delay and reset reaction time, see Chapter 8.1.

Electrical Characteristics: Reset Function (cont’d)

I = 13.5 V, Tj = -40 °C to +150 °C,

all voltages with respect to ground, direction of currents as shown in Figure 7 (unless otherwise specified).

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

-40

Tj [°C]

-20

20 40

80 100

VQ [V],

VRT [V]

VRT-Tj .v s d

4,9

4,8

4,7

5.0

060

140

120

VRT,hi

VRT,lo

Output Undervoltage

Reset Headroom

VRH

Pin RADJ = GND

CD [nF]

100

1000

td -CD .v s d

100

td,

td,PWR-ON

[ms]

td (typ.)

td,PWR-ON (typ.)

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