ISL6255 データシートの表示（PDF） - Renesas Electronics

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ISL6255

Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

Renesas Electronics 

ISL6255, ISL6255A

Electrical Specifications

DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = DCSET = 1.5V, ACLIM = VREF,

VADJ = Floating, EN = VDD = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V, CVDD = 1µF, IVDD = 0mA,

TA = -10°C to +100°C, TJ  125°C, unless otherwise noted. (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

DCSET Input Bias Current Hysteresis

2.2

3.4

4.4

µA

DCSET Input Bias Current

DCSET  1.26V

2.2

3.4

4.4

µA

DCSET Input Bias Current

DCSET < 1.26V

-1

0

1

µA

OSCILLATOR

Frequency

245

300

355

kHz

PWM Ramp Voltage (peak-peak)

CSIP = 18V

1.6

V

CSIP = 11V

1

V

SYNCHRONOUS BUCK REGULATOR

Maximum Duty Cycle

97

99

99.6

%

UGATE Pull-Up Resistance

BOOT-PHASE = 5V, 500mA source current

1.8

3.0



UGATE Source Current

BOOT-PHASE = 5V, BOOT-UGATE = 2.5V

1.0

A

UGATE Pull-down Resistance

BOOT-PHASE = 5V, 500mA sink current

1.0

1.8



UGATE Sink Current

BOOT-PHASE = 5V, UGATE-PHASE = 2.5V

1.8

A

LGATE Pull-Up Resistance

VDDP-PGND = 5V, 500mA source current

1.8

3.0



LGATE Source Current

VDDP-PGND = 5V, VDDP-LGATE = 2.5V

1.0

A

LGATE Pull-Down Resistance

VDDP-PGND = 5V, 500mA sink current

1.0

1.8



LGATE Sink Current

VDDP-PGND = 5V, LGATE = 2.5V

1.8

A

CHARGING CURRENT SENSING AMPLIFIER

Input Common-Mode Range

0

18

V

Input Offset Voltage

Guaranteed by design

-2.5

0

2.5

mV

Input Bias Current at CSOP

0 < CSOP < 18V

0.25

2

µA

Input Bias Current at CSON

0 < CSON < 18V

75

100

µA

CHLIM Input Voltage Range

0

3.6

V

CSOP to CSON Full-Scale Current Sense

Voltage

ISL6255: CHLIM = 3.3V

ISL6255A: CHLIM = 3.3V

157

165

173

mV

160

165

170

mV

ISL6255: CHLIM = 2.0V

95

100

105

mV

ISL6255A: CHLIM = 2.0V

97

100

103

mV

ISL6255: CHLIM = 0.2V

5.0

10

15.0

mV

ISL6255A: CHLIM = 0.2V

7.5

10

12.5

mV

CHLIM Input Bias Current

CHLIM = GND or 3.3V, DCIN = 0V

-1

1

µA

CHLIM Power-Down Mode Threshold

Voltage

CHLIM rising

80

88

95

mV

CHLIM Power-Down Mode Hysteresis

Voltage

15

25

40

mV

ADAPTER CURRENT SENSING AMPLIFIER

Input Common-Mode Range

7

25

V

Input Offset Voltage

Guaranteed by design

-2

2

mV

Input Bias Current at CSIP and CSIN

Combined

CSIP = CSIN = 25V

100

130

µA

Input Bias Current at CSIN

0 < CSIN < DCIN, Guaranteed by design

0.10

1

µA

FN9203 Rev 2.00

May 23, 2006

Page 4 of 22

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