ISL9220IRTZ-T datasheet(4/15 Pages) INTERSIL

Part #	ISL9220IRTZ-T

Description	Switching Charger for 1-Cell and 2-Cell Li-ion Batteries

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Manufacturer	INTERSIL [Intersil Corporation]

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ISL9220, ISL9220A

4

FN6936.3

February 16, 2012

Level 1 Pre-Charge Current Range (Linear

mode)

IPCHG1

VBAT < VPCHG1

25

50

90

mA

Level 2 Pre-Charge Current Accuracy

IPCHG2

RSNS = 0.039Ω

RISET2 = 300kΩ (Nominal IPCHG = 140mA)

-

±20

-

%

Level 1 Pre-Charge Threshold Voltage

VPCHG1

ISL9220

2.42

2.5

2.56

V

ISL9220A

4.8

5.0

5.3

V

Level 2 Pre-Charge Threshold Voltage

VPCHG2

ISL9220

2.9

3.0

3.1

V

ISL9220A

5.75

6.0

6.25

V

RECHARGE THRESHOLD

Recharge Voltage Threshold

VRECHG

ISL9220

3.85

4.0

4.1

V

ISL9220A

7.75

8.0

8.25

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

DMIN

-0-

%

Cycle-By-Cycle Current Limit

ILIM

-3.0

-

A

SWITCHING CHARGER DC CHARACTERISTICS

High-Side MOSFET ON-Resistance

rDS(ON), HS1

-

112

-

m

Ω

Combined High Side ON-Resistance

(Note 7)

rDS(ON), HS2

Measured between VIN and SW pins

-

224

450

m

Ω

Low-Side MOSFET ON-Resistance

rDS(ON), L

-

72

180

m

Ω

High-Side Path Reverse Leakage Current

IREV

VIN = 0V, VSW = 15V

-

1.0

5.0

µA

Charger Output Voltage

VCHG

ISL9220, IOUT = 100mA, TA = +25°C

4.179

4.2

4.221

V

ISL9220A, IOUT = 100mA, TA = +25°C

8.358

8.4

8.442

V

ISL9220, IOUT = 100mA

4.158

4.2

4.242

V

ISL9220A, IOUT = 100mA

8.316

8.4

8.484

V

Electrical Specifications Typical specifications are measured at the following conditions: TA = +25°C; For ISL9220, VIN =5V;

For ISL9220A, VIN = 12V. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

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