TLF4949 Datasheet, PDF (10/23 Pages) Infineon Technologies AG – 5V Low Drop Out Linear Voltage Regulator

TLF4949
4.4.2 RESET
Electrical Characteristics: Reset
V_IN = 14 V, T_j = -40°C to +125°C, all voltages with respect to ground, direction of current as shown in Figure 4
“Application Diagram” on Page 15 (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
4.4.13
4.4.14
4.4.15
Reset Threshold Voltage
Reset Threshold Hysteresis
Reset Pulse Delay
4.4.16 Reset Output Low Voltage
4.4.17 Reset Output High Leakage
Current
V_RT
V_RTH
t_RD
V_RL
I_RH
4.25 4.5
50
100
55
100
–
–
–
–
4.75 V –
200 mV –
180 ms Calculated Value:
C_D = 100nF;
t_R ≥ 100µs
0.4
V
R_RES ≥ 10kΩ to V_OUT;
V_IN ≥ 0V and
V_OUT ≥ 1V¹⁾
1
µA V_RES = 5V
4.4.18
4.4.19
Delay Comparator Threshold
Delay Comparator Threshold
Hysteresis
V_D,th
–
V_{D,th, hy}
–
2
–
100 –
V–
mV –
4.4.20 Delay Capacitor charge current I_D,chg
–
2
–
µA V_D = 1V; current
flowing out of D pin
4.4.21 Delay Capacitor discharge current I_D,dchg –
9
–
mA V_D = 1V; current
flowing into D pin
1) Device entering this condition by decreasing V_IN from powered up and fully initialized operation state.
4.4.3 Sense
Electrical Characteristics: Sense
V_IN = 14 V, T_j = -40°C to +125°C, all voltages with respect to ground, direction of current as shown in Figure 4
“Application Diagram” on Page 15 (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Sense
4.4.22
4.4.23
4.4.24
Sense Low Threshold
Sense Threshold Hysteresis
Sense Output Low Voltage
4.4.25 Sense Output Leakage
4.4.26 Sense Input Current
V_ST
V_STH
V_SL
I_SH
I_SI
1.16 1.23 1.35 V
–
20
100 200 mV –
–
–
0.4
V
V_SI ≤ 1.16V;
V_IN ≥ 3.5V;
R_SO ≥ 10KΩ to V_OUT
–
–
1
µA
V_SO= 5V; V_SI ≥ 1.5V
-5
-1.5 0
µA
V_SI = 0
Data Sheet
10
Rev. 1.0, 2012-05-07