ISL6308EVAL1 datasheet(6/27 Pages) INTERSIL

Part #	ISL6308EVAL1

Description	Three-Phase Buck PWM Controller with High Current Integrated MOSFET Drivers

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Manufacturer	INTERSIL [Intersil Corporation]

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6 / 27 page

6

FN9208.2

October 19, 2005

ERROR AMPLIFIER

DC Gain (Note 3)

RL = 10K to ground

-

96

-

dB

Gain-Bandwidth Product (Note 3)

CL = 100pF, RL = 10K to ground

-

20

-

MHz

Slew Rate (Note 3)

CL = 100pF, Load = ±400µA-

8

-

V/

µs

Maximum Output Voltage

Load = 1mA

3.90

4.20

-

V

Minimum Output Voltage

Load = -1mA

-

0.85

1.0

V

REMOTE SENSE DIFFERENTIAL AMPLIFIER

Input Bias Current (VSEN)

(VSEN = 1.5V)

49

55

60

µA

Bandwidth (Note 3)

-20

-

MHz

Slew Rate (Note 3)

-8

-

V/

µs

OVERCURRENT PROTECTION

OCSET trip current

93

100

107

µA

OCSET Accuracy

OC comparator offset (OCSET and ISUM Difference)

-5

0

5

mV

ICOMP Offset

ISEN amplifier offset

-5

0

5

mV

PROTECTION

Undervoltage Threshold

VSEN falling

80

82

84

%VID

Undervoltage Hysteresis

VSEN Rising

-

3

-

%VID

Overvoltage Threshold while IC Disabled

1.62

1.67

1.72

V

Overvoltage Threshold

VSEN Rising

DAC +

125mV

DAC +

150mV

DAC +

175mV

V

Overvoltage Hysteresis

VSEN Falling

-

50

-

mV

Open Sense-Line Protection Threshold

IREF Rising and Falling

VDIFF

+ 0.9V

VDIFF +

1V

VDIFF

+ 1.1V

V

OVP Output High Drive Voltage

IOVP = 50mA, VCC = 5V

2.2

3.9

V

SWITCHING TIME

UGATE Rise Time (Note 3)

tRUGATE; VPVCC = 12V, 3nF Load, 10% to 90%

-

26

-

ns

LGATE Rise Time (Note 3)

tRLGATE; VPVCC = 12V, 3nF Load, 10% to 90%

-

18

-

ns

UGATE Fall Time (Note 3)

tFUGATE; VPVCC = 12V, 3nF Load, 90% to 10%

-

18

-

ns

LGATE Fall Time (Note 3)

tFLGATE; VPVCC = 12V, 3nF Load, 90% to 10%

-

12

-

ns

UGATE Turn-On Non-overlap (Note 3)

tPDHUGATE; VPVCC = 12V, 3nF Load, Adaptive

-

10

-

ns

LGATE Turn-On Non-overlap (Note 3)

tPDHLGATE; VPVCC = 12V, 3nF Load, Adaptive

-

10

-

ns

GATE DRIVE RESISTANCE (Note 3)

Upper Drive Source Resistance

VPVCC = 12V, 150mA Source Current

1.25

2.0

3.0

Ω

Upper Drive Sink Resistance

VPVCC = 12V, 150mA Sink Current

0.9

1.6

3.0

Ω

Lower Drive Source Resistance

VPVCC = 12V, 150mA Source Current

0.85

1.4

2.2

Ω

Lower Drive Sink Resistance

VPVCC = 12V, 150mA Sink Current

0.60

0.94

1.35

Ω

OVER TEMPERATURE SHUTDOWN

Thermal Shutdown Setpoint (Note 3)

-

160

-

°C

Thermal Recovery Setpoint (Note 3)

-

100

-

°C

NOTE:

3. Parameter magnitude guaranteed by design. Not 100% tested.

Electrical Specifications

Recommended Operating Conditions, Unless Otherwise Specified. (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL6308

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