ADM8693ANZ Просмотр технического описания (PDF) - Analog Devices
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ADM8693ANZ Datasheet PDF : 20 Pages
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ADM8690/ADM8691/ADM8692/ADM8693/ADM8695
SPECIFICATIONS
VCC = full operating range, VBATT = 2.8 V, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
BATTERY BACKUP SWITCHING
VCC Operating Voltage Range
ADM8690, ADM8691, ADM8695
ADM8692, ADM8693
VBATT Operating Voltage Range
ADM8690, ADM8691, ADM8695
ADM8692, ADM8693
VOUT Output Voltage
VOUT in Battery Backup Mode
Supply Current (Excludes IOUT)
Supply Current in Battery Backup Mode
Battery Standby Current
+ = Discharge, − = Charge
Battery Switchover Threshold
VCC – VBATT
Battery Switchover Hysteresis
BATT ON Output Voltage
BATT ON Output Short-Circuit Current
RESET AND WATCHDOG TIMER
Reset Voltage Threshold
ADM8690, ADM8691, ADM8695
ADM8692, ADM8693
Reset Threshold Hysteresis
Reset Timeout Delay
ADM8690, ADM8691, ADM8692,
ADM8693,
ADM8695
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET Output Voltage @ VCC = 1 V
RESET, LOW LINE Output Voltage
RESET, WDO Output Voltage
Output Short-Circuit Source Current
Output Short-Circuit Sink Current
WDI Input Threshold1
Logic Low
Logic High
WDI Input Current
Min
Typ
Max Unit Test Conditions/Comments
4.75
5.5 V
4.5
5.5 V
2.0
4.25 V
2.0
4.0 V
VCC − 0.005 VCC − 0.0025
V
VCC − 0.2
VCC − 0.125
V
VBATT − 0.005 VBATT − 0.002
V
140
200 µA
0.4
1
µA
−0.1
70
50
20
55
0.5
2.5
+0.02 µA
mV
mV
mV
0.3 V
mA
25
µA
IOUT = 1 mA
IOUT ≤ 100 mA
IOUT = 250 µA, VCC < VBATT − 0.2 V
IOUT = 100 µA
VCC = 0 V, VBATT = 2.8 V
5.5 V > VCC > VBATT + 0.2 V
TA = 25°C
Power-up
Power-down
ISINK = 3.2 mA
BATT ON = VOUT = 4.5 V sink current
BATT ON = 0 V source current
4.5
4.25
35
140
1.0
70
3840
768
50
3.5
3.5
1
3.5
−10
4.65
4.4
40
50
200
1.6
100
4064
1011
4
0.05
10
25
1
−1
4.73 V
4.48 V
mV
70
ms
OSC SEL = high
280
2.25
140
4097
1025
20
0.4
0.4
25
ms
s
ms
cycles
cycles
ns
mV
V
V
V
V
µA
mA
OSC SEL = high
Long period
Short period
Long period
Short period
VIL = 0.4, VIH = 3.5 V
ISINK = 10 µA, VCC = 1 V
ISINK = 1.6 mA, VCC = 4.25 V
ISOURCE = 1 µA
ISINK = 1.6 mA
ISOURCE = 1 µA
0.8 V
V
10
µA
µA
WDI = VOUT
WDI = 0 V
Rev. B | Page 4 of 20
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