ADM8696 查看數據表（PDF） - Analog Devices
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ADM8696 Datasheet PDF : 13 Pages
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ADM8696/ADM8697–SPECIFICATIONS (VCC = Full Operating Range, VBATT = +2.8 V, TA = TMIN to TMAX
unless otherwise noted.)
Parameter
Min
Typ
Max
Units Test Conditions/Comments
VCC Operating Voltage Range
VBATT Operating Voltage Range
BATTERY BACKUP SWITCHING (ADM8696)
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
Low Line Threshold (LLIN)
Reset Timeout Delay
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
Minimum WDI Input Pulse Width
RESET Output Voltage @ VCC = +1 V
RESET, RESET Output Voltage
LOW LINE, WDO Output Voltage
Output Short Circuit Source Current
WDI Input Threshold1
Logic Low
Logic High
WDI Input Current
POWER FAIL DETECTOR
PFI Input Threshold
PFI–LLIN Threshold Difference
PFI Input Current
LLIN Input Current
PFO Output Voltage
PFO Short Circuit Source Current
3.0
5.5
V
2.0
VCC – 0 3 V
VCC – 0.005 VCC – 0.0025
VCC – 0.2
VCC – 0.125
VBATT – 0.005 VBATT – 0.002
115
200
0.4
1
–0.1
70
50
20
30
0.5
2.5
+0.02
0.3
25
V
IOUT = 1 mA
V
IOUT ≤ 100 mA
V
IOUT = 250 µA, VCC < VBATT – 0.2 V
µA
IOUT = 100 mA
µA
VCC = 0 V, VBATT = 2.8 V
5.5 V > VCC > VBATT + 0.2 V
µA
mV Power-Up
mV Power-Down
mV
V
ISINK = 3.2 mA
mA BATT ON = VOUT = 2.4 V Sink Current
µA
BATT ON = VOUT, VCC = 0 V, Source Current
1.25
35
1.0
70
4032
960
50
100
3.5
3.5
1
3.5
–10
1.3
50
1.6
100
4063
1011
100
4
0.1
0.1
2.7
2.7
10
1.2
1
–1
1.35
70
2.25
140
4097
1025
20
0.4
0.4
0.4
25
0.8
10
V
ms
s
ms
Cycles
Cycles
ns
ns
ns
mV
V
V
V
V
V
V
V
µA
OSC SEL = HIGH
Long Period
Short Period
Long Period
Short Period
VIL = 0.8, VIH = 3.75 V, VCC = 5 V
VIL = 0.8, VIH = 3.5 V, VCC = 5 V
VIL = 0.8, VIH = 2.6 V, VCC = 3 V
ISINK = 10 µA, VCC = 1 V
ISINK = 400 µA, VCC = 2 V, VBATT = 0 V
ISINK = 3.2 mA, 3 V < VCC < 5.5 V
ISOURCE = 1 µA, VCC = 5 V
ISOURCE = 1 µA, VCC = 3 V
ISINK = 3.2 mA,
ISOURCE = 1 µA, VCC = 5 V
ISOURCE = 1 µA, VCC = 3 V
VCC = 5 V
V
V
VCC = 5 V
V
VCC = 3 V
µA
WD1 = VOUT, (VCC)
µA
WD1 = 0 V
1.2
1.3
1.4
V
–50
± 15
+50
mV
–25
± 0.01
+25
nA
–50
± 0.01
+50
nA
0.4
V
ISINK = 3.2 mA
3.5
V
ISOURCE = 1 µA
2.7
V
ISOURCE = 1 µA, VCC = 3 V
1
10
25
µA
PFI = Low, PFO = 0 V
CHIP ENABLE GATING (ADM8697)
CEIN Threshold
CEIN Pull-Up Current
CEOUT Output Voltage
CE Propagation Delay
3.0
1.2
3
VCC – 0.5
2
4
0.8
V
V
V
µA
0.4
V
V
7
ns
ns
OSCILLATOR
OSC IN Input Current
OSC SEL Input Pull-Up Current
OSC IN Frequency Range
0
OSC IN Frequency with Ext. Capacitor
±2
µA
5
µA
500
kHz
4
kHz
NOTE
1WDI is a three-level input internally biased to 38% of VCC and has an input impedance of approximately 5 MΩ.
Specifications subject to change without notice.
–2–
VIL
VIH
VCC = 3 V
ISINK = 3.2 mA
ISOURCE = 800 µA
VCC = 5.0 V
VCC = 3.0 V
OSC SEL = 0 V
OSC SEL = 0 V, COSC = 47 pF
REV. A
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