參數(shù)資料
型號: ASM802M
廠商: Alliance Semiconductor Corporation
英文描述: UP Power Supply Supervisor With Battery Backup Switch
中文描述: 電源的監(jiān)控帶備用電池開關(guān)
文件頁數(shù): 10/13頁
文件大?。?/td> 323K
代理商: ASM802M
10 of 13
Notice: The information in this document is subject to change without notice
ASM690A / 692A
ASM802L / 802M
ASM805L
μP Power Supply Supervisor With Battery Backup Switch
rev 1.0
October 2003
Reset Threshold
Hysteresis
40
mV
Reset Pulse Width
t
RS
140
200
280
ms
Reset Output Volt-
age
I
SOURCE
= 800μA
V
CC
- 1.5
V
I
SINK
= 3.2mA
0.4
ASM69_AC, ASM802_C, V
CC
=1.0V,
I
SINK
=50μA
0.3
ASM69_AE, ASM802_E, V
CC
=1.2V,
I
SINK
=100μA
0.3
ASM805LC, I
SOURCE
=4μA, V
CC
= 1.1V
0.8
ASM805LE, I
SOURCE
=4μA, V
CC
= 1.2V
0.9
ASM805L, I
SOURCE
=800μA
V
CC
- 1.5
ASM805L, I
SINK
=3.2mA
0.4
Watchdog Timeout
t
WD
1.00
1.60
2.25
sec
WDI Pulse Width
t
WP
V
IL
= 0.4V, V
IH
= 0.8V
CC
50
ns
WDI Input Current
WDI = V
CC
50
150
μA
WDI = 0V
-150
-50
μA
WDI Input Thresh-
old
(Note 3)
V
CC
= 5V, Logic LOW
0.8
V
PFI Input Thresh-
old
ASM69_A,ASM805L, V
CC
= 5V
1.20
1.25
1.30
V
ASM802_C/E, V
CC
= 5V
1.225
1.250
1.275
PFI Input Current
-25
0.01
25
nA
PFO Output Volt-
age
I
SOURCE
= 800μA
V
CC
- 1.5
V
I
SINK
= 3.2mA
0.4
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Notes:
1. If V
CC
or V
BATT
is 0V, the other must be greater than 2.0V.
2. Battery charging-current is “-”. Battery discharge current is “+”.
3. WDI is guaranteed to be in an intermediate level state if WDI is floating and V
CC
is within the operating voltage range. WDI
input impedance is 50 k
. WDI is biased to 0.3V
CC
.
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