参数资料
| 型号： | ADM691SQ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 4.65V 16CDIP |
| 标准包装： | 25 |
| 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 35 ms |
| 电压 - 阀值： | 4.65V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-CDIP |
| 包装： | 管件 |
ADM690–ADM695–SPECIFICATIONS
(V CC = Full Operating Range, V BATT = +2.8 V, T A = T MIN to
T MAX unless otherwise noted)
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
BATTERY BACKUP SWITCHING
V CC Operating Voltage Range
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
4.75
4.5
5.5
5.5
V
V
V BATT Operating Voltage Range
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
2.0
2.0
4.25
4.0
V
V
V OUT Output Voltage
V OUT in Battery Backup Mode
V CC – 0.05 V CC – 0.025
V CC – 0.5 V CC – 0.25
V BATT – 0.05 V BATT – 0.02
V
V
V
I OUT = 1 mA
I OUT ≤ 100 mA
I OUT = 250 μ A, V CC < V BATT – 0.2 V
Supply Current (Excludes I OUT )
Supply Current in Battery Backup Mode
Battery Standby Current
(+ = Discharge, – = Charge)
Battery Switchover Threshold
V CC – V BATT
Battery Switchover Hysteresis
BATT ON Output Voltage
–0.1
–1.0
1
0.6
70
50
20
1.95
1
+0.02
+0.02
0.3
mA
μ A
μ A
μ A
mV
mV
mV
V
I OUT = 100 mA
V CC = 0 V, V BATT = 2.8 V
5.5 V > V CC > V BATT + 0.2 V
T A = +25 ° C
Power Up
Power Down
I SINK = 3.2 mA
BATT ON Output Short Circuit Current
0.5
35
1
25
mA
μ A
BATT ON = V OUT = 4.5 V Sink Current
BATT ON = 0 V Source Current
RESET AND WATCHDOG TIMER
Reset Voltage Threshold
ADM690, ADM691, ADM694, ADM695
ADM692, ADM693
Reset Threshold Hysteresis
4.5
4.25
4.65
4.4
40
4.73
4.48
V
V
mV
Reset Timeout Delay
ADM690, ADM691, ADM692, ADM693
ADM694, ADM695
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET O utpu t Voltage @ V CC = +1 V
RESET , LOW LINE Output Voltage
RESET , WDO Output Voltage
Output Short Circuit Source Current
35
140
1.0
70
3840
768
50
3.5
3.5
1
50
200
1.6
100
4
3
70
280
2.25
140
4097
1025
200
0.4
0.4
25
ms
ms
s
ms
Cycles
Cycles
ns
mV
V
V
V
V
μ A
OSC SEL = HIGH, V CC = 5 V, T A = +25 ° C
OSC SEL = HIGH, V CC = 5 V, T A = +25 ° C
Long Period, V CC = 5 V, T A = +25 ° C
Short Period, V CC = 5 V, T A = +25 ° C
Long Period
Short Period
V IL = 0.4, V IH = 3.5 V
I SINK = 10 μ A, V CC = 1 V
I SINK = 1.6 mA, V CC = 4.25 V
I SOURCE = 1 μ A, V CC = 5 V
I SINK = 1.6 mA, V CC = 5 V
I SOURCE = 1 μ A, V CC = 4.25 V
Output Short Circuit Sink Current
WDI Input Threshold
Logic Low
Logic High
3.5
25
0.8
mA
V
V
V CC = 5 V 1
WDI Input Current
–50
20
–15
50
μ A
μ A
WDI = V OUT , T A = +25 ° C
WDI = 0 V, T A = +25 ° C
POWER FAIL DETECTOR
PFI Input Threshold
PFI Input Current
PFO Output Voltage
PFO Short Circuit Source Current
PFO Short Circuit Sink Current
1.25
–25
3.5
1
1.3
± 0.01
3
25
1.35
+25
0.4
25
V
nA
V
V
μ A
mA
V CC = +5 V
I SINK = 3.2 mA
I SOURCE = 1 μ A
PFI = Low, PFO = 0 V
PFI = High, PFO = V OUT
CHIP ENABLE GATING
CE IN Threshold
0.8
V
V IL
CE IN Pull-Up Current
CE OUT Output Voltage
CE Propagation Delay
3.0
V OUT – 1.5
V OUT – 0.05
3
5
0.4
9
V
μ A
V
V
V
ns
V IH
I SINK = 3.2 mA
I SOURCE = 3.0 mA
I SOURCE = 1 μ A, V CC = 0 V
–2 –
REV. A
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