ISL6313 데이터 시트보기 (PDF) - Intersil

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ISL6313

Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications

Intersil 

ISL6313

Electrical Specifications Recommended Operating Conditions, Unless Otherwise Specified. (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

System Accuracy (0.375V to 0.600V)

-2.0

-

2.0

%

DAC Input Low Voltage (INTEL)

-

-

0.4

V

DAC Input High Voltage (INTEL)

0.8

-

-

V

DAC Input Low Voltage (AMD)

-

-

0.8

V

DAC Input High Voltage (AMD)

1.4

-

-

V

PIN-ADJUSTABLE OFFSET

OFS Sink Current Accuracy (Negative ROFS = 32.4kΩ from OFS to VCC

Offset)

47.0

50.0

53.0

µA

OFS Source Current Accuracy

(Positive Offset)

ROFS = 6.04kΩ from OFS to GND

47.0

50.0

53.0

µA

ERROR AMPLIFIER

DC Gain

Gain-Bandwidth Product

RL = 10k to ground, (Note 3)

CL = 100pF, RL = 10k to ground,

(Note 3)

-

96

-

dB

-

40

-

MHz

Slew Rate

Maximum Output Voltage

CL = 100pF, Load = ±400µA, (Note 3)

-

20

Load = 1mA

3.90

4.20

-

V/µs

-

V

Minimum Output Voltage

Load = -1mA

-

1.30

1.52

V

SOFT-START RAMP

Soft-Start Ramp Rate

RS = 100kΩ

Adjustment Range of Soft-Start Ramp

Rate (Note 3)

-

1.26

-

mV/µs

0.156

-

6.25

mV/µs

CURRENT SENSING

IOUT Current Sense Offset

RSET = 40.2kΩ, VISEN1+ = VISEN2+ =

-2.5

0

2.5

µA

0V

IOUT Current Sense Gain

RSET = 40.2kΩ, VISEN1 = VISEN2 =

76

(ISL6313CRZ)

24mV

80

84

µA

IOUT Current Sense Gain

RSET = 40.2kΩ, VISEN1 = VISEN2 =

73

(ISL6313IRZ)

24mV

80

84

µA

OVERCURRENT PROTECTION

Overcurrent Trip Level - Average

Channel

Normal operation (ISL6313CRZ)

Normal operation (ISL6313IRZ)

88

100

112

µA

82

100

118

µA

Dynamic VID change

114

140

166

µA

Overcurrent Trip Level - Individual

Channel

Normal operation

Dynamic VID change

114

140

166

µA

166

196

226

µA

IOUT Pin Overcurrent Trip Level

1.97

2.02

2.07

V

PROTECTION

Undervoltage Threshold

VSEN falling

VDAC - 325mV VDAC - 350mV VDAC - 375mV V

Undervoltage Hysteresis

VSEN rising

85

100

125

mV

Overvoltage Threshold During Soft-

Start

VR11 and AMD

1.220

1.260

1.300

V

Overvoltage Threshold

VR11, VSEN rising

VDAC + 150mV

VDAC +

175mV

VDAC + 200mV V

AMD, VSEN rising

VDAC + 200mV

VDAC +

225mV

VDAC + 250mV V

7

FN6448.0

March 5, 2007

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