1.2MHz, Low-Cost,

High-Performance Chargers

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3

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

-0.2

+0.2

ISET Input Bias Current

-0.2

+0.2

μA

Rising

2.4

ISET PWM Threshold

Falling

0.8

V

ISET Frequency

0.128

500

kHz

ISET Effective Resolution

8

Bits

INPUT-CURRENT REGULATION

58.5

60

61.5

mV

Input Current-Limit Threshold

-2.5

+2.5

%

CSSN Input Bias Current

-1

+1

μA

CSSP/CSSN Input-Voltage Range

8.0

26.0

V

IINP Transconductance

2.66

2.8

2.94

μA/mV

-2.5

+2.5

IINP Accuracy

-2.5

+2.5

%

SUPPLY AND LINEAR REGULATOR

DCIN Input-Voltage Range

8

26

V

DCIN falling

7.9

8.1

DCIN Undervoltage-Lockout (UVLO) Trip-Point

DCIN rising

8.7

8.9

V

Adapter present

3

6

mA

DCIN + CSSP + CSSN Quiescent Current

(Note 2)

Adapter absent

30

50

μA

Adapter absent

10

20

Charger shutdown

10

20

BATT + CSIP + CSIN + LX Input Current

(Note 2)

200

500

μA

LDO Output Voltage

5.15

5.35

5.55

V

LDO Load Regulation

100

200

mV

LDO UVLO Threshold

3.2

4.1

5.0

V

REFERENCES

4.18

4.20

4.22

V

3.1

3.9

V

ACIN

ACIN Threshold

2.058

2.1

2.142

V

ACIN Threshold Hysteresis

10

20

30

mV

ACIN Input Bias Current

-1

+1

μA

ACOK

ACOK Sink Current

6

mA

ACOK Leakage Current

1

μA

ELECTRICAL CHARACTERISTICS (continued)