TLE42994 Datasheet, PDF (22/30 Pages) Infineon Technologies AG – Low Dropout Fixed Voltage Regulator

TLE42994
Block Description and Electrical Characteristics
Electrical Characteristics Reset Function
V_I = 13.5 V, -40 °C ≤ T_j ≤ 150 °C, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Output Undervoltage Reset
5.7.1
Default Output Undervoltage Reset V_RT
Switching Thresholds
4.5
4.65 4.8
V
V_Q decreasing
Output Undervoltage Reset Threshold Adjustment
5.7.2 Reset Adjust
Switching Threshold
V_RADJ,th 1.26 1.36 1.44 V
3.5 V ≤ V_Q < 5 V
5.7.3 Reset Adjustment Range¹⁾
Reset Output RO
V_RT,range 3.50
–
4.65 V
–
5.7.4 Reset Output Low Voltage
V_RO,low
–
0.1
0.4
V
1 V ≤ V_Q ≤ V_RT
no external R_RO,ext
5.7.5
Reset Output Internal
Pull-up Resistor to V_Q
R_RO
10
20
40
kΩ –
5.7.6 Optional Reset Output External
R_RO,ext
5.6
–
–
kΩ
1 V ≤ V_Q ≤ V_RT ;
Pull-up Resistor to V_Q
V_RO ≤ 0.4 V
Reset Delay Timing
5.7.7
5.7.8
Delay Pin Output Voltage
Power On Reset Delay Time
5.7.9 Upper Delay
Switching Threshold
V_D
–
–
5
V
–
t_rd
17
28
35
ms C_D = 100 nF
Calculated Value:
t_rd = C_D * V_DU / I_D,ch
V_DU
–
1.85 –
V
–
5.7.10 Lower Delay
Switching Threshold
V_DL
–
0.50 –
V
–
5.7.11 Delay Capacitor
Charge Current
I_D,ch
–
8.0
–
µA V_D = 1 V
5.7.12 Delay Capacitor
Reset Discharge Current
I_D,dch
–
70
–
mA V_D = 1 V
5.7.13 Delay Capacitor
Discharge Time
t_rr,d
–
1.9
3
5.7.14 Internal Reset Reaction Time
5.7.15 Reset Reaction Time
t_rr,int
–
t_rr,total
–
14
20
15.9 23
1) V_RT is scaled linearly, in case the Reset Switching Threshold is modified
2) parameter not subject to production test; specified by design
µs Calculated Value:
t_rr,d = C_D*(V_DU -
V_DL)/ I_D,dch
C_D = 100 nF
µs
C_D = 0 nF ²⁾
µs Calculated Value:
t_rr,total = t_rr,int + t_rr,d
C_D = 100 nF
Data Sheet
22
Rev. 1.1, 2009-05-19