A6155 Datasheet, PDF (4/15 Pages) List of Unclassifed Manufacturers – High Efficiency Linear Power Supply

A6155
Timing Characteristics
V _INPUT = 6.0 V, I_L = 100 µA, C_L = 10 µF + 100 nF, C_INPUT = 22 µF, T_J = -40 to + 85 °C, unless otherwise specified
Parameter
Symbol Test Conditions
Min.
Typ.
Max.
Propagation delays:
TCL to Output Pins
T_DIDO
250
500
V_IN sensitivity
T_SEN
1
5
20
Logic Transition Times on all Output Pins T_TR
Load 10 kΩ, 50 pF
30
100
Power-on Reset delay
T_POR
R_EXT = 110 kΩ, ±1% 90
100
110
Watchdog Time
T_WD
R_EXT = 110 kΩ, ±1% 90
100
110
Open Window Percentage
OWP
±0.2 T_WD
Closed Window Time
T_CW
0.8 T_WD
T_CW
R_EXT = 110 kΩ, ±1% 72
80
88
Open Window Time
T_OW
0.4 T_WD
T_OW
R_EXT = 110 kΩ, ±1% 36
40
44
Watchdog Reset Pulse
T_WDR
T_WD/40
T_WDR
R_EXT = 110 kΩ, ±1%
2.5
T_CL Input Pulse Width
T_TCL
150
Reset Pulse when switched to R internal T_RI
0.3
0.9
2.3
Watchdog Reset Pulse with R internal (R_I) T_RIR
T_RI/320
T_RI versus Temperature at V_OUTPUT = 5 V
Units
ns
µs
ns
ms
ms
ms
ms
ms
ns
s
s
Table 4
2.5
2.0
1.5
1.0
0.5
0
-40
+25
+85
T_J [°C]
+125
Fig.3
Timing Waveforms
Watchdog Timeout Period
T_WD = T_POR
− OWP
− 20%
+ OWP
+ 20%
Condition:
R_EXT = 110 kΩ
Watchdog
timer reset
4
T_CW – closed window
T_OW – open window
80
100
120
t [ms]
Fig. 4