LTC4006 データシートの表示（PDF） - Linear Technology

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LTC4006

4A, High Efficiency, Standalone Li-Ion Battery Charger

Linear Technology 

LTC4006

ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating

temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted.

SYMBOL PARAMETER

Current Comparators ICMP and IREV

ITMAX

Maximum Current Sense Threshold (VCSP – VBAT)

ITREV

Reverse Current Threshold (VCSP – VBAT)

Current Sense Amplifier, CA2

CONDITIONS

VITH = 2.5V

MIN TYP MAX

● 140

165

200

– 30

Transconductance

1

Source Current

Sink Current

Current Limit Amplifier

Measured at ITH, VITH = 1.4V

– 40

Measured at ITH, VITH = 1.4V

40

Transconductance

1.5

VCLP

Current Limit Threshold

ICLP

CLP Input Bias Current

Voltage Error Amplifier, EA

● 93

100 107

100

Transconductance

1

OVSD

Sink Current

Overvoltage Shutdown Threshold as a Percent

of Programmed Charger Voltage

Measured at ITH, VITH = 1.4V

36

● 102

107

110

Input P-Channel FET Driver (INFET)

DCIN Detection Threshold (VDCIN – VCLN)

Forward Regulation Voltage (VDCIN – VCLN)

Reverse Voltage Turn-Off Voltage (VDCIN – VCLN)

INFET “On” Clamping Voltage (VDCIN – VINFET)

INFET “Off” Clamping Voltage (VDCIN – VINFET)

Thermistor

DCIN Voltage Ramping Up

from VCLN – 0.1V

DCIN Voltage Ramping Down

IINFET = 1µA

IINFET = – 25µA

●0

0.17 0.25

●

25

50

● – 60 – 25

●5

5.8

6.5

0.25

NTCVR Reference Voltage During Sample Time

4.5

High Threshold

VNTC Rising

● NTCVR NTCVR NTCVR

• 0.48 • 0.5 • 0.52

Low Threshold

VNTC Falling

● NTCVR NTCVR NTCVR

• 0.115 • 0.125 • 0.135

Thermistor Disable Current

VNTC ≤ 10V

10

Indicator Outputs (ACP/SHDN, CHG)

C10TOL C/10 Indicator Accuracy

Voltage Falling at PROG

● 0.375 0.400 0.425

LBTOL LOBAT Threshold Accuracy

RESTART Threshold Accuracy

LTC4006-6

LTC4006-2

LTC4006-4

LTC4006-6

LTC4006-2

LTC4006-4

● 4.70

● 7.27

● 9.70

4.93 5.14

7.5 7.71

10 10.28

● 7.5

7.8 7.96

● 11.35 11.7 11.94

● 15.15 15.6 15.92

VOL

Low Logic Level of ACP/SHDN, CHG

VOH

High Logic Level of ACP/SHDN

IPO

Pull-Up Current on ACP/SHDN

IC10

C/10 Indicator Sink Current from CHG

IOFF

Off State Leakage Current of CHG

Timer Defeat Threshold at CHG

IOL = 100µA

IOH = –1µA

V = 0V

VOH = 3V

VOH = 3V

●

0.5

● 2.7

– 10

● 15

25

38

–1

1

1

UNITS

mV

mV

mmho

µA

µA

mmho

mV

nA

mmho

µA

%

V

mV

mV

V

V

V

V

V

µA

V

V

V

V

V

V

V

V

V

µA

µA

µA

V

4006fa

3

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