LTM8061EV-4.1PBF,LTM8061EV-4.1PBF pdf中文资料,LTM8061EV-4.1PBF引脚图,LTM8061EV-4.1PBF电路-Datasheet-电子工程世界

LTM8061

32V, 2A µModule Li-Ion/

Polymer Battery Charger

FEATURES

n

DESCRIPTION

The LTM

®

8061 is a high efﬁciency 32V, 2A μModule

®

standalone Li-Ion battery charger. It is optimized for one

and two-cell packs, with ﬁxed ﬂoat voltage options: 4.1V,

4.2V, 8.2V and 8.4V. The LTM8061 provides a constant-

current/constant-voltage charge characteristic, with

maximum charge current up to 2A. A precondition feature

trickle charges a depleted battery, and bad battery detec-

tion provides a signal and suspends charging if a battery

does not respond to preconditioning.

The LTM8061 can be conﬁgured to terminate charging

when charge current falls to one-tenth the programmed

maximum current or to use an internal timer if a time-

based termination scheme is desired. Once charging is

terminated, the LTM8061 enters a low current standby

mode. An auto-restart feature starts a new charge cycle if

the battery voltage drops 2.5% from the ﬂoat voltage, or

if a new battery is inserted into a charging system.

The LTM8061 is packaged in a thermally enhanced, com-

pact (9mm

×

15mm

×

4.32mm) over-molded land grid

array (LGA) package suitable for automated assembly

by standard surface mount equipment. The LTM8061 is

RoHS compliant.

n

Wide Input Voltage Range: 4.95V to 32V

(40V Absolute Maximum)

Float Voltage Options:

1-Cell: 4.1V, 4.2V

2-Cell: 8.2V, 8.4V

Programmable Charge Current: Up to 2A

User-Selectable Charge Termination: C/10 or

Onboard Termination Timer

Dynamic Charge Rate Programming/Soft-Start Pin

Programmable Input Current Limit

Optional Reverse Input Protection

NTC Resistor Temperature Monitor

0.5% Float Voltage Accuracy

Bad-Battery Detection with Auto-Reset

Tiny, Low Proﬁle (9mm

×

15mm

×

4.32mm) Surface

Mount LGA Package

APPLICATIONS

n

Industrial Handheld Instruments

12V to 24V Automotive and Heavy Equipment

Professional Video/Camera Chargers

L,

LT, LTC, LTM, Linear Technology, Linear logo, μModule and PolyPhase are registered

trademarks and PowerPath is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners

TYPICAL APPLICATION

Standalone Single Cell 2A Li-Ion Battery Charger

with C/10 Termination from 6V to 32V Input

V

IN

6V TO 32V

LTM8061-4.1

V

INA

V

INC

/CLP

V

IN

RUN

4.7μF

RNG/SS

TMR

NTC

GND

8061 TA01a

Battery Charging Proﬁle

2500

NORMAL CHARGING

BAT

BIAS

+

SINGLE

CELL

4.1V

BATTERY

CHARGING CURRENT (mA)

2000

1500

CHRG

FAULT

AVAILABLE OPTIONS:

1-CELL: 4.1V, 4.2V

2-CELL: 8.2V, 8.4V

1000

500

PRECONDITION

TERMINATION

0

1

3

2

BATTERY VOLTAGE (V)

4

8061 TA01b

0

8061f

1

LTM8061

ABSOLUTE MAXIMUM RATINGS

(Note 1)

PIN CONFIGURATION

1

A

B

BANK 2

C

BAT

D

BANK 1

E

GND

F

G

H

J

K

V

IN

L

BANK 5

BANK 4

BANK 3

V

INC

/CLP V

INA

BIAS

RNG/SS

FAULT

CHRG

NTC

TMR

RUN

2

3

4

5

6

7

V

INA

, V

INC/CLP

, V

IN

....................................................40V

RUN,

CHRG, FAULT

...................................V

IN

+ 0.5, 40V

TMR, RNG/SS, NTC .................................................2.5V

BIAS, BAT .................................................................10V

Internal Operating Temperature

(Note 2)................................................................. 125°C

Maximum Body Solder Temperature..................... 245°C

LGA PACKAGE

77-LEAD (15mm 9mm 4.32mm)

T

JMAX

= 125°C,

θ

JA

= 17.0°C/W,

θ

JCtop

= 16.2°C/W,

θ

JCbottom

= 6.1°C/W,

θ

JB

= 11.2°C/W,

θ

values determined per JEDEC 51-9, 51-12

Weight = 1.7g

ORDER INFORMATION

LEAD FREE FINISH

LTM8061EV-4.1#PBF

LTM8061IV-4.1#PBF

LTM8061EV-4.2#PBF

LTM8061IV-4.2#PBF

LTM8061EV-8.2#PBF

LTM8061IV-8.2#PBF

LTM8061EV-8.4#PBF

LTM8061IV-8.4#PBF

TRAY

LTM8061EV-4.1#PBF

LTM8061IV-4.1#PBF

LTM8061EV-4.2#PBF

LTM8061IV-4.2#PBF

LTM8061EV-8.2#PBF

LTM8061IV-8.2#PBF

LTM8061EV-8.4#PBF

LTM8061IV-8.4#PBF

PART MARKING*

LTM8061V-41

LTM8061V-42

LTM8061V-82

LTM8061V-84

PACKAGE DESCRIPTION

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

77-Lead (15mm

×

9mm

×

4.32mm)

TEMPERATURE RANGE

–40°C to 125°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

For more information on lead free part marking, go to:

http://www.linear.com/leadfree/

This product is only offered in trays. For more information go to:

http://www.linear.com/packaging/

8061f

2

LTM8061

ELECTRICAL CHARACTERISTICS

PARAMETER

V

IN

Operating Voltage

V

IN

Start Voltage

V

IN

OVLO Threshold

V

IN

OVLO Hysteresis

V

IN

UVLO Threshold

V

IN

UVLO Hysteresis

V

INA

to V

INC

/CLP Diode Forward Voltage Drop

BAT Float Voltage

V

INA

Current = 2A

LTM8061-4.1

l

The

l

denotes the speciﬁcations which apply over the full internal

operating temperature range, otherwise speciﬁcations are at T

A

= 25°C. RUN = 2V.

CONDITIONS

LTM8061-4.1/LTM8061-4.2

LTM8061-8.2/LTM8061-8.4

V

IN

Rising

LTM8061-4.1/LTM8061-4.2

LTM8061-8.2/LTM8061-8.4, V

IN

Rising

l

MIN

TYP

MAX

32

7.5

11.5

UNITS

V

32

35

1

4.6

8.7

0.3

0.55

40

LTM8061-4.2

l

LTM8061-8.2

l

LTM8061-8.4

l

4.08

4.06

4.18

4.16

8.16

8.12

8.36

8.32

1.70

4.1

4.2

8.2

8.4

4.12

4.14

4.22

4.24

8.24

8.28

8.44

8.48

2.0

V

A

mV

V

mV

μA

Maximum BAT Charge Current

BAT Recharge Threshold Voltage

(Note 3)

LTM8061-4.1/LTM8061-4.2,

Relative to BAT Float Voltage

LTM8061-8.2/LTM8061-8.4,

Relative to BAT Float Voltage

LTM8061-4.1/LTM8061-4.2

LTM8061-8.2

LTM8061-8.4

Standby Mode

RUN = 0.4V

–100

–200

2.9

5.65

5.80

90

85

15

2.9

50

200

BAT Precondition Threshold Voltage

BAT Precondition Threshold Hysteresis Voltage

Input Supply Current

Minimum BIAS Voltage for Proper Operation

V

INC

/CLP Threshold Voltage

V

INC

/CLP Input Bias Current

NTC Range Limit Voltage (High)

NTC Range Limit Voltage (Low)

NTC Threshold Hysteresis

NTC Disable Impedance

NTC Bias Current

RNG/SS Bias Current

Current Charge Programming: V

RNG/SS

/BAT Current

RUN Threshold Voltage

RUN Hysteresis Voltage

RUN Input Bias Current

CHRG, FAULT

Output Low Voltage

TMR Charge/Discharge Current

TMR Disable Threshold Voltage

C/10 Termination Current

Operating Frequency

RNG/SS Open

0.9

0.1

10mA Load

V

RUN

Rising

V

NTC

Rising

V

NTC

Falling

For Both High and Low Range Limits

(Note 4)

V

NTC

= 0.8V

250

47.5

45

0.42

1.15

1.25

0.265

V

mV

nA

1.36

0.29

20

500

50

0.50

1.20

120

1

1.45

0.315

V

%

kΩ

52.5

55

0.58

1.25

μA

V/A

V

mV

μA

0.4

25

0.25

200

1

1.1

V

μA

V

mA

MHz

8061f

3

LTM8061

ELECTRICAL CHARACTERISTICS

Note 1:

Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2:

The LTM8061E is guaranteed to meet performance speciﬁcations

from 0°C to 125°C. Speciﬁcations over the –40°C to 125°C internal

temperature range are assured by design, characterization and correlation

with statistical process controls. LTM8061I is guaranteed to meet

speciﬁcations over the full –40°C to 125°C internal operating temperature

range. Note that the maximum internal temperature is determined by

speciﬁc operating conditions in conjunction with board layout, the rated

package thermal resistance and other environmental factors.

Note 3:

The maximum BAT charge current is reduced by thermal foldback.

See the Typical Performance Characteristics section for details.

Note 4:

Guaranteed by design and correlation.

TYPICAL PERFORMANCE CHARACTERISTICS

Efﬁciency vs I

BAT

, 4.1V

BAT

90

85

EFFICIENCY (%)

80

V

INA

= 24V

75

70

65

60

0

500

1000

I

BAT

(mA)

1500

2000

8061 G01

Efﬁciency vs I

BAT

, 4.2V

BAT

85

95

V

INA

= 12V

80

EFFICIENCY (%)

V

INA

= 24V

75

85

80

75

70

65

60

0

500

1000

I

BAT

(mA)

1500

2000

8061 G02

Efﬁciency vs I

BAT

, 8.2V

BAT

90

V

INA

= 24V

V

INA

= 12V

V

INA

= 12V

70

60

0

500

1000

I

BAT

(mA)

1500

2000

8061 G03

Efﬁciency vs I

BAT

, 8.4V

BAT

89

87

85

EFFICIENCY (%)

V

INA

= 12V

83

81

79

77

75

0

500

1000

I

BAT

(mA)

1500

2000

8061 G04

Input Current vs I

BAT

, 4.1V

BAT

900

800

INPUT CURRENT (mA)

V

INA

= 12V

700

600

500

400

300

200

100

0

500

1000

I

BAT

(mA)

1500

2000

8061 G05

Input Current vs I

BAT

, 4.2V

BAT

V

INA

= 12V

V

INA

= 24V

INPUT CURRENT (mA)

800

700

600

500

400

300

200

100

0

V

INA

= 24V

V

INA

= 24V

0

500

1000

I

BAT

(mA)

1500

2000

8061 G06

8061f

4

LTM8061

TYPICAL PERFORMANCE CHARACTERISTICS

Input Current vs I

BAT

, 8.2V

BAT

1600

1400

INPUT CURRENT (mA)

V

INA

= 12V

1000

800

600

400

200

0

500

1000

I

BAT

(mA)

1500

2000

8061 G07

Input Current vs I

BAT

, 8.4V

BAT

1600

1400

V

INA

= 12V

INPUT CURRENT (mA)

20

1200

I

BIAS

(mA)

1000

800

600

400

200

0

500

1000

I

BAT

(mA)

1500

2000

8061 G08

I

BIAS

vs I

BAT

, 4.1V

BAT

25

1200

V

INA

= 12V

15

10

V

INA

= 24V

5

V

INA

= 24V

V

INA

= 24V

0

500

1000

I

BAT

(mA)

1500

2000

8061 G09

I

BIAS

vs I

BAT

, 4.2V

BAT

30

25

V

INA

= 12V

20

I

BIAS

(mA)

I

BIAS

(mA)

15

10

V

INA

= 24V

5

0

500

1000

I

BAT

(mA)

1500

2000

8061 G10

I

BIAS

vs I

BAT

, 8.2V

BAT

50

45

40

35

30

25

20

15

10

5

0

500

1000

I

BAT

(mA)

1500

2000

8061 G11

I

BIAS

vs I

BAT

, 8.4V

BAT

60

50

V

INA

= 12V

40

I

BIAS

(mA)

30

20

V

INA

= 24V

10

0

500

V

INA

= 12V

V

INA

= 24V

1000

I

BAT

(mA)

1500

2000

8061 G12

RNG/SS vs Maximum I

BAT

1.2

1.0

QUIESCENT CURRENT (μA)

RNG/SS VOLTAGE (V)

0.8

0.6

0.4

0.2

0

500

1500

1000

BAT CURRENT (mA)

2000

8061 G13

Quiescent Current vs V

INA

,

RUN = 0V

80

INPUT STANDBY CURRENT (mA)

70

60

50

40

30

20

10

0

10

20

V

INA

(V)

30

40

8061 G14

Input Standby Current

vs Temperature, 4.1V

BAT

6

5

V

INA

= 12V

4

V

INA

= 24V

3

2

1

0

–50

0

50

TEMPERATURE (°C)

100

8061 G15

8061f

5

LTM8061EV-4.1PBF

LTM8061EV-4.1PBF概述

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