ISL9220B_10 datasheet(4/15 Pages) INTERSIL

Part #	ISL9220B

Description	Switching Charger for 1-Cell Li-ion Batteries

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Manufacturer	INTERSIL [Intersil Corporation]

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ISL9220B

4

FN7652.1

July 2, 2010

Pre-Charge Current Range (Linear

Mode)

IPCHG

VBAT < VPCHG

25

50

90

mA

Pre-Charge Threshold Voltage

VPCHG

2.42

2.5

2.56

V

RECHARGE THRESHOLD

Recharge Voltage Threshold

VRECHG

3.85

4.0

4.1

V

TEMPERATURE MONITORING

High Battery Temperature Threshold

VTMIN

Specified as % of VBIAS

30

35

40

%

Low Battery Temperature Threshold

VTMAX

Specified as % of VBIAS

70

75

80

%

Battery Removal Threshold

VRMV

Specified as % of VBIAS

90

95

-

%

Thermistor Disable Threshold

VT_DIS

-

250

-

mV

Temperature Threshold Hysteresis

VT,HYS

-

180

-

mV

Temperature Detection Deglitch Time

-

12

-

ms

THERMAL PROTECTION

Thermal Shutdown Threshold

TFD

-

140

-

°C

Thermal Hysteresis

THYS

-30-

°C

VBIAS OUTPUT

Output Voltage

VBIAS

5.3 < VIN < 15V, IVBIAS = 5mA

4.70

5.0

5.25

V

Output Current

IBIAS

5.3 < VIN < 15V

-

5

mA

OSCILLATOR

Oscillation Period

TOSC

CTIME = 15nF

-

3.0

-

ms

SWITCHING CHARGER AC CHARACTERISTICS

Switching Frequency

FOSC

1.02

1.2

1.38

MHz

Maximum Duty Cycle

DMAX

-96-

%

Minimum Duty Cycle

-0-

%

Cycle-By-Cycle Current Limit

ILIM

-

3.0

-

A

SWITCHING CHARGER DC CHARACTERISTICS

High-Side MOSFET ON-resistance

rDS(ON), HS1

-

112

-

mΩ

Combined High-Side ON-resistance

(Note 8)

rDS(ON), HS2 Measured between VIN and SW pins

-

224

450

mΩ

Low Side MOSFET ON-resistance

rDS(ON), L

-

72

180

mΩ

High-Side Path Reverse Leakage

Current

IREV

VIN = 0V, VSW = 15V

-

1.0

5.0

μA

Charger Output Voltage

VCHG

IOUT = 100mA, TA = +25°C

4.179

4.2

4.221

V

IOUT = 100mA

4.158

4.2

4.242

V

INPUT CURRENT SENSE AMPLIFIER

Input Bias Current at CSIP and CSIN,

Pin (Charger Enabled)

IISIP_ON

EN = L

-

100

200

μA

Input Current Limit Threshold

IIN_LIM

CSIP-CSIN

88

100

112

mV

Electrical Specifications Typical specifications are measured at the following conditions: TA = +25°C;

VVIN = 5V. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 6)

TYP

MAX

(Note 6) UNITS

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