DS2711 查看數據表（PDF） - Maxim Integrated

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DS2711

Loose-Cell NiMH Chargers

Maxim Integrated 

DS2711/DS2712: Loose-Cell NiMH Chargers

PARAMETER

Threshold Voltage,

Thermistor - Min

Threshold Voltage,

Thermistor - Max

Threshold Voltage,

Thermistor - Stop

Threshold Current, TMR

Pin Suspend

Presence Test Current,

VP1, VP2

Reverse Leakage

Current, VP1, VP2

SYMBOL

VTHM-MIN

CONDITIONS

(Notes 1, 4, 6)

VTHM-MAX (Notes 1, 4, 6)

VTHM-STOP (Notes 1, 4, 6)

ITMR-SUS

IPTST

ILKGR

Parallel: VDD ≥ 4.0V,

Series: VDD ≥ 4.5V

VDD = 0V, VP1 = 1.5V,

VP2 = 3.0V

Current-Sense Reference

Voltage

VIREF

(Note 1, 4, 7)

Gain, Current-Sense

Error Amp

Gain, Current-Sense

Comparator

Propagation Time,

Current-Sense

Comparator

Hysteresis, Current-

Sense Comparator

GM

DS2711 (Note 8)

GM

DS2712 (Note 8)

tPDLY

DS2712, 2mV

over/underdrive

VHYS-COMP DS2712

MIN

0.30

-6%

0.9

10

22

TYP

VDD x

0.73

VDD x

0.33

VDD x

0.29

0.1

10

125

24

MAX

0.36

0.5

15

2

+6%

1.5

0.25

26

UNITS

V

V

V

µA

µA

µA

mV

%

Ω-1

Ω-1

µs

mV

ELECTRICAL CHARACTERISTICS: TIMING

(4.0V ≤ VDD ≤ 5.5V, TA = -20°C to +70°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

Internal Timebase Period

tBASE

Internal Timebase

Accuracy

-10

Duty Factor, Series Fast

Charge

CC1

Duty Factor, Series

Precharge/Top-Off

CC1

Duty Factor, Parallel Fast

Charge

CC1, CC2

Duty Factor, Parallel

Precharge/Top-Off

CC1, CC2

Duty Factor, Maintenance

Charge

CC1, CC2

Cell Test Interval

tCTST

Precharge Timeout

Fast-Charge Termination

Hold-Off Period

Fast-Charge Flat Voltage

Timeout

Charge Timer Period

tPCHG

tTHO

tFLAT

tCTMR

VCELL < VBAT-MIN

VCELL not increasing

RTMR = 100kΩ

TYP

0.96

0.969

0.250

0.484

0.125

0.0156

31

34

4

16

2.5

MAX

+10

UNITS

s

%

Seconds

Minutes

Minutes

Minutes

Hours

3 of 15

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