TLE4699 Datasheet, PDF (23/31 Pages) Infineon Technologies AG – Low Drop Out Linear Voltage Regulator 5 V Fixed Output Voltage

TLE4699
Reset Function
8.2
Electrical Characteristics Reset Function
Electrical Characteristics: Reset Function
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.
Output Undervoltage Reset Comparator Default Values (Pin RADJ = GND)
8.2.1
Output Undervoltage Reset V_RT,lo
Lower Switching Threshold
4.6 4.7 4.8 V
V_I = 0 V
V_Q decreasing
RADJ = GND
8.2.2
Output Undervoltage Reset V_RT,hi
Upper Switching Threshold
4.7 4.8 4.9 V
V_I within operating range
V_Q increasing
RADJ = GND
8.2.3
Output Undervoltage Reset V_RT,hy
Switching Hysteresis
60 120 –
mV V_I within operating range
RADJ = GND.
8.2.4
Output Undervoltage Reset V_RH
Headroom
250 300 –
mV Calculated Value:
V_Q - V_RT,lo
V_I within operating range
I_Q = 50 mA
RADJ = GND
Reset Threshold Adjustment
8.2.5
Reset Adjust
Lower Switching Threshold
8.2.6 Reset Adjustment Range ¹⁾
Reset Output RO
V_RADJ,th
V_RT,range
1.17 1.195 1.22 V
3.20 –
4.70 V
V_I = 0 V
3.2 V ≤ V_Q < 5 V
–
8.2.7 Reset Output Low Voltage V_RO,low
8.2.8
8.2.9
Reset Output
External Pull-up Resistor
to Q
Reset Output
Internal Pull-up Resistor
R_RO,ext
R_RO
–
0.2 0.4 V
V_I = 0 V;
1 V ≤ V_Q ≤ V_RT,low
R_RO,ext = 3.3 kΩ
3
–
–
kΩ
V_I = 0 V;
1 V ≤ V_Q ≤ V_RT,low
V_RO = 0.4 V
20 30 40 kΩ internally connected to Q
Reset Delay Timing
8.2.10 Upper Delay
Switching Threshold
V_DST,hi
–
1.21 –
V
–
8.2.11 Lower Delay
Switching Threshold
V_DST,lo
–
0.30 –
V
–
8.2.12 Delay Capacitor
Charge Current
I_D,ch
–
3.5 –
μA
V_D = 1 V
8.2.13 Delay Capacitor
Reset Discharge Current
I_DR,dsch
–
80 –
mA V_D = 1 V
8.2.14 Undervoltage Reset Delay
Time
t_d,100nF
16 23 30 ms Calculated value;
C_D = 100 nF ²⁾;
C_D discharged to V_DST,lo
Data Sheet
23
Rev. 1.0, 2010-11-30