TLE4675 Datasheet, PDF (21/25 Pages) Infineon Technologies AG – Low Drop Out Linear Voltage Regulator 5V Fixed Output Voltage

TLE4675
Reset Function
Electrical Characteristics: Reset Function (cont’d)
V_I = 13.5 V, T_j = -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.
7.2.15 Power-on Reset Delay
t_{d,PWR-ON,100nF} 23
33
43
ms Calculated value;
Time
C_D = 100 nF²⁾
C_D discharged to 0 V
7.2.16 Internal Reset Reaction t_rr,int
Time
–
10
15
µs C_D = 0 nF
7.2.17 Delay Capacitor Discharge t_rr,d
Time
–
1
2
µs C_D = 100 nF
7.2.18 Total Reset Reaction Time t_rr,total
–
11
17
µs Calculated Value:
t_rr,total = t_rr,d + t_rr,int
C_D = 100 nF²⁾
1) Parameter not subject of production test.
2) For programming a different delay and reset reaction time, see Chapter 7.1 for calculation.
7.3
Typical Performance Characteristics Reset Function
Undervoltage Reset Switching Thresholds
V_RO,lo, V_RO,hi versus T_j
VRT-Tj .v s d
V_Q [V],
VRT [V]
Pin RADJ = GND
Reset Delay Time t_d, t_{d,PWR_ON} versus
Delay Capacitor C_D
td ,
td ,PWR- ON
td -CD .v s d
[ms]
V_Q
5.0
4,9
4,8
VRT,hi
4,7
V_RT,lo
Output Undervoltage
Reset Headroom VRH
100
t_d,PWR-ON (typ.)
td (typ.)
10
-40 -20 0 20 40 60 80 100 120 140
T_j [°C]
1
10
100
1000
C_D [nF]
Data Sheet
21
Rev. 1.0, 2008-09-30