ADM8690 datasheet(2/16 Pages) AD

2 / 16 page

ADM8690–ADM8695–SPECIFICATIONS

Parameter

Min

Typ

Max

Units

Test Conditions/Comments

BATTERY BACKUP SWITCHING

VCC Operating Voltage Range

ADM8690, ADM8691, ADM8694, ADM8695

4.75

5.5

ADM8692, ADM8693

4.5

5.5

VBATT Operating Voltage Range

ADM8690, ADM8691, ADM8694, ADM8695

2.0

4.25

ADM8692, ADM8693

2.0

4.0

VOUT Output Voltage

VCC – 0.005

VCC – 0.0025

IOUT = 1 mA

VCC – 0.2

VCC – 0.125

IOUT

≤ 100 mA

VOUT in Battery Backup Mode

VBATT – 0.005 VBATT – 0.002

IOUT = 250 µA, VCC < VBATT – 0.2 V

Supply Current (Excludes IOUT)

140

200

µAI

OUT = 100 µA

Supply Current in Battery Backup Mode

0.4

µAV

CC = 0 V, VBATT = 2.8 V

Battery Standby Current

5.5 V > VCC > VBATT + 0.2 V

(+ = Discharge, – = Charge)

–0.1

+0.02

µAT

A = +25°C

Battery Switchover Threshold

Power-Up

VCC – VBATT

Power-Down

Battery Switchover Hysteresis

BATT ON Output Voltage

0.3

ISINK = 3.2 mA

BATT ON Output Short Circuit Current

BATT ON = VOUT = 4.5 V Sink Current

0.5

2.5

µA

BATT ON = 0 V Source Current

RESET AND WATCHDOG TIMER

Reset Voltage Threshold

ADM8690, ADM8691, ADM8694, ADM8695

4.5

4.65

4.73

ADM8692, ADM8693

4.25

4.4

4.48

Reset Threshold Hysteresis

Reset Timeout Delay

ADM8690, ADM8691, ADM8692, ADM8693

OSC SEL = HIGH

ADM8694, ADM8695

140

200

280

OSC SEL = HIGH

Watchdog Timeout Period, Internal Oscillator

1.0

1.6

2.25

Long Period

100

140

Short Period

Watchdog Timeout Period, External Clock

3840

4064

4097

Cycles

Long Period

768

1011

1025

Cycles

Short Period

Minimum WDI Input Pulse Width

VIL = 0.4, VIH = 3.5 V

RESET Output Voltage @ VCC = +1 V

ISINK = 10 µA, VCC = 1 V

RESET, LOW LINE Output Voltage

0.05

0.4

ISINK = 1.6 mA, VCC = 4.25 V

3.5

ISOURCE = 1

µA

RESET, WDO Output Voltage

0.4

ISINK = 1.6 mA

3.5

ISOURCE = 1 µA

Output Short Circuit Source Current

µA

Output Short Circuit Sink Current

WDI Input Threshold

Note 1

Logic Low

0.8

Logic High

3.5

WDI Input Current

µA

WDI = VOUT

–10

–1

µA

WDI = 0 V

POWER FAIL DETECTOR

PFI Input Threshold

1.25

1.3

1.35

VCC = +5 V

PFI Input Current

–25

±0.01

+25

PFO Output Voltage

0.4

ISINK = 3.2 mA

3.5

ISOURCE = 1 µA

PFO Short Circuit Source Current

µA

PFI = Low,

PFO = 0 V

PFO Short Circuit Sink Current

PFI = High,

PFO = VOUT

CHIP ENABLE GATING

CEIN Threshold

0.8

VIL

3.0

VIH

CEIN Pull-Up Current

µA

CEOUT Output Voltage

0.4

ISINK = 3.2 mA

VOUT – 1.5

ISOURCE = 3.0 mA

VOUT – 0.05

ISOURCE = 1

µA, V

CC = 0 V

CE Propagation Delay

REV. 0

–2–

(VCC = Full Operating Range, VBATT = +2.8 V, TA = TMIN to

TMAX unless otherwise noted)

ADM8690 bảng dữ liệu(PDF) 2 Page - Analog Devices

ADM8690 bảng dữ liệu(HTML) 2 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

bảng dữ liệu tải về

Link URL