ADP3408 查看數據表（PDF） - Analog Devices

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ADP3408

GSM Power Management System

Analog Devices 

ADP3408

Parameter

Symbol

Condition

Min Typ Max Unit

BATTERY CHARGER

Charger Output Voltage

Load Regulation

CHRDET On Threshold

CHRDET Hysteresis

CHRDET Off Delay4

CHRIN Supply Current

BATSNS

∆BATSNS

CHRIN – BATSNS

4.35 V ≤ CHRIN ≤ 10 V3

CHGEN = Low, No Load

CHRIN = 10 V

CHGEN = Low, No Load

0ЊC < TA < 50ЊC

CHRIN = 5 V

0 ≤ CHRIN – ISENSE

< Current Limit Threshold

CHGEN = Low

CHRIN < VBAT

CHRIN = 5 V

4.150

4.155

30

4.200

90

40

6

0.6

4.250 V

4.230 V

15

mV

150

mV

mV

ms/nF

mA

BATTERY CHARGER

Current Limit Threshold

High Current Limit

(UVLO Not Active)

Low Current Limit

(UVLO Active)

ISENSE Bias Current

End-of-Charge Signal Threshold

EOC Reset Threshold

GATEDR Transition Time

GATEDR High Voltage

GATEDR Low Voltage

Output High Voltage

(EOC, CHRDET)

Output Low Voltage

(EOC, CHRDET)

Battery Overvoltage

Protection Threshold

(GATEDR → High)

Battery Overvoltage

Protection Hysteresis

CHRIN – ISENSE

CHRIN – ISENSE

VBAT

tR, tF

VOH

VOL

VOH

VOL

BATSNS

BATSNS

CHRIN = 5 V DC

142

VBAT = 3.6 V

CHGEN = Low

CHRIN = 5 V DC

149

VBAT = 3.6 V

CHGEN = Low

0ЊC < TA < 50ЊC

VBAT = 2 V

CHGEN = Low

CHRIN = 5 V

CHRIN = 5 V DC

VBAT > 4.0 V

CHGEN = Low

CHGEN = Low

CHRIN = 5 V

VBAT > 3.6 V

CHGEN = High, CL = 2 nF

CHRIN = 5 V

VBAT = 3.6 V

CHGEN = High,

GATEIN = High

IOH = –1 mA

CHRIN = 5 V

VBAT = 3.6 V

CHGEN = High

GATEIN = Low

IOL = 1 mA

IOH = –250 µA

IOL = +250 µA

CHRIN = 7.5 V

CHGEN = High

GATEIN = Low

CHRIN = 7.5 V

CHGEN = High

GATEIN = Low

3.82

0.1

4.5

2.4

5.30

160

160

20

200

14

3.96

5.50

200

190

mV

180

mV

35

mV

µA

35

mV

4.10 V

1

µs

V

0.5

V

V

0.25 V

5.70 V

mV

NOTES

1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.

2This feature is intended to protect against catastrophic failure of the device. Maximum allowed operating junction temperature is 125ºC. Operation beyond

125ºC could cause permanent damage to the device.

3No isolation diode present between charger input and battery.

4Delay set by external capacitor on the RESCAP pin.

Specifications subject to change without notice.

–4–

REV. A

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