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Typical operating characteristics – Rainbow Electronics MAX1507 User Manual

Page 4

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MAX1507

Linear Li+ Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN

4

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Typical Operating Characteristics

(V

IN

= 5V, V

BATT

= 4.0V, TEMP = EN = CHG = unconnected, R

ISET

= 2.8k

Ω to GND, C

IN

= 1µF, C

BATT

= 1µF, C

VL

= 0.47µF, T

A

=

+25

°C, unless otherwise noted.)

0

0.5

1.0

1.5

2.0

SUPPLY CURRENT

vs. INPUT VOLTAGE

MAX1507 toc01

INPUT VOLTAGE (V)

SUPPLY CURRENT (mA)

0

6

8

2

4

10

12

I

BATT

= 0

0

0.5

1.0

1.5

2.0

DISABLED-MODE SUPPLY

CURRENT vs. INPUT VOLTAGE

MAX1507 toc02

INPUT VOLTAGE (V)

DISABLED-MODE SUPPLY CURRENT (mA)

0

EN = VL

6

8

4

2

10

12

200

100

400

300

500

600

0

150

50

350

250

450

550

0

2.0

1.0

3.0

4.0

0.5

2.5

1.5

3.5

4.5

CHARGE CURRENT

vs. BATTERY VOLTAGE

MAX1507 toc03

BATTERY VOLTAGE (V)

CHARGE CURRENT (mA)

TEMP = VL

0

200

100

400

300

500

600

150

50

350

250

450

550

0

6

8

2

4

10

12

1

7

9

3

5

11

13

CHARGE CURRENT

vs. INPUT VOLTAGE

MAX1507 toc04

INPUT VOLTAGE (V)

CHARGE CURRENT (mA)

TEMP = VL

0

200

100

400

300

500

600

150

50

350

250

450

550

0

0.16

0.08

0.24

0.40

0.36

0.04

0.20

0.12

0.28 0.32

CHARGE CURRENT

vs. INPUT-VOLTAGE HEADROOM

MAX1507 toc05

V

IN

- V

BATT

(V)

CHARGE CURRENT (mA)

V

BATT

= 4.0V

4.186

4.180

4.198

4.192

4.204

4.210

4.189

4.183

4.201

4.195

4.207

-40

10

-15

35

60

85

BATTERY REGULATION VOLTAGE

vs. TEMPERATURE

MAX1507 toc06

TEMPERATURE (

°C)

BATTERY REGULATION VOLTAGE (V)

600

540

500

460

400

420

580

560

520

480

440

-40

10

-15

35

60

85

CHARGE CURRENT

vs. AMBIENT TEMPERATURE

MAX1507 toc07

AMBIENT TEMPERATURE (

°C)

CHARGE CURRENT (mA)

TEMP = VL

0

300

700

500

900

200

100

600

400

800

1000

-40

10

-15

35

60

85

CHARGE CURRENT

vs. AMBIENT TEMPERATURE (TEMP = VL)

MAX1507 toc08

AMBIENT TEMPERATURE (

°C)

CHARGE CURRENT (mA)

V

BATT

= 4.0V

V

BATT

= 3.6V

R

ISET

= 1.87k