参数资料
型号: ADM691AARNZ-REEL7
厂商: Analog Devices Inc
文件页数: 2/12页
文件大小: 0K
描述: IC SUPERVISOR MPU 4.65V 16SOIC
标准包装: 1,000
类型: 备用电池电路
监视电压数目: 1
输出: 开路漏极,推挽式
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 4.65V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC N
包装: 带卷 (TR)
ADM691A/ADM693A/ADM800L/M–SPECIFICATIONS
(V CC = 4.75 V to 5.5 V (ADM691A, ADM800L) 4.5 V to 5.5 V (ADM693A, ADM800M) V BATT = +2.8 V, T A = T MIN to T MAX unless otherwise noted)
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
BATTERY BACKUP SWITCHING
V CC , V BATT Operating Voltage Range
0
5.5
V
V OUT Output Voltage
V CC – 0.05
V CC – 0.02
V
I OUT = 25 mA
V CC to V OUT Output Resistance
V OUT in Battery Backup Mode
V CC – 0.3
V BATT – 0.3
V CC – 0.2
0.8
1.2
V
?
V
I OUT = 250 mA
V CC = 4.5 V
V BATT = 4.5 V, I OUT = 20 mA
V BATT – 0.25
V
V BATT = 2.8 V, I OUT = 10 mA
V BATT to V OUT Output Resistance
Supply Current (Excludes I OUT )
Supply Current in B. Backup (Excludes I OUT )
Battery Standby Current
(+ = Discharge, – = Charge)
Battery Switchover Threshold
V CC –V BATT
V BATT – 0.15
–0.1
–1.0
70
0.04
V BATT + 0.03
V BATT – 0.03
12
20
25
100
1
+0.02
+0.02
V
?
?
?
μ A
μ A
μ A
μ A
V
V
V BATT = 2.0 V, I OUT = 5 mA
V BATT = 4.5 V
V BATT = 2.8 V
V BATT = 2.0 V
V CC > (V BATT – 1 V)
V CC < (V BATT – 1.2 V), V BATT = 2.8 V
5.5 V > V CC > V BATT + 0.2 V
(V BATT +0.2 V) < V CC , T A = +25 ° C
(V BATT +0.2 V) < V CC
Power Up
Power Down
Battery Switchover Hysteresis
60
mV
BATT ON Output Voltage Low
0.1 0.4
0.7 1.5
V
V
I SINK = 3.2 mA
I SINK = 25 mA
BATT ON Output Short Circuit Current
1
60
15 100
mA
μ A
Sink Current
Source Current
RESET AND WATCHDOG TIMER
Reset Voltage Threshold
ADM691A, ADM800L
4.5
4.65
4.75
V
ADM693A, ADM800M
ADM800L, V CC Falling
ADM800M, V CC Falling
Reset Threshold Hysteresis
V CC to RESET Delay
4.25
4.55
4.3
4.40
15
80
4.50
4.70
4.45
V
V
V
mV
μ s
T A = +25 ° C
T A = +25 ° C
Power Down
LOW LINE to RESET Delay
800
ns
Reset Timeout Period Internal Oscillator
Reset Timeout Period External Clock
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET Output Voltage
140
1.0
70
100
200
2048
1.6
100
4096
1024
0.004
0.1
280
2.25
140
0.3
0.4
ms
Cycles
s
ms
Cycles
Cycles
ns
V
V
Power Up
Power Up
Long Period
Short Period
Long Period
Short Period
V IL = 0.4, V IH = 0.75 × V CC
I SINK = 50 μ A, V CC = 1 V, V BATT = 0 V
I SINK = 3.2 mA, V CC = 4.25 V
3.5
V
I SOURCE = 1.6 mA, V CC = 5 V
RESET Output Short Circuit Current
7
20
mA
RESET Output Voltage Low
0.1
0.4
V
I SINK = 3.2 mA
LOW LINE Output Voltage
LOW LINE Short Circuit Source Current
WDO Output Voltage
WDO Short Circuit Source Current
3.5
1
3.5
15
3
0.4
100
0.4
10
V
V
μ A
V
V
mA
I SINK = 3.2 mA, V CC = 4.25 V
I SOURCE = 1 μ A, V CC = 5 V
I SINK = 3.2 mA, V CC = 4.25 V
I SOURCE = 500 μ A, V CC = 5 V
WDI Input Threshold
Logic Low
Logic High
WDI Input Current
0.75 × V CC
–50
–10
20
0.8
50
V
V
μ A
μ A
WDI = 0 V
WDI = V OUT
POWER FAIL DETECTOR
PFI Input Threshold ADM69xA
PFI Input Threshold ADM800L/M
PFI Input Current
PFO Output Voltage
PF O Short Circuit Source Current
PFI to PFO Delay
1.2
1.225
3.5
1
1.25
1.25
± 0.01
15
25
60
1.3
1.275
± 25
0.4
100
V
V
nA
V
μ A
μ s
μ s
V CC = 5 V
V CC = 5 V
I SINK = 3.2 mA
I SOURCE = 1 μ A
V IN = –20 mV
V IN = 20 mV
–2 –
REV. 0
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