ISL6315CR(2006) 데이터 시트보기 (PDF) - Intersil

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ISL6315CR
(Rev.:2006)

Two-Phase Multiphase Buck PWM Controller with Integrated MOSFET Drivers

Intersil 

ISL6315

Electrical Specifications Test Conditions: VCC = 5V, TJ = 0°C to 85°C, Unless Otherwise Specified (Continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

PROTECTION

Overvoltage Threshold while IC Disabled

VRM9.0 configuration

1.90

1.95

Hammer and VRM10.0 configurations

1.60

1.65

Overvoltage Threshold

FB Rising

-

VID

+200mV

Overvoltage Hysteresis

-

100

SWITCHING TIME

UGATE Rise Time (Note 3)

LGATE Rise Time (Note 3)

UGATE Fall Time (Note 3)

LGATE Fall Time (Note 3)

UGATE Turn-On Non-overlap (Note 3)

LGATE Turn-On Non-overlap (Note 3)

OUTPUT

tRUGATE; VVCC = 5V, 3nF Load

tRLGATE; VVCC = 5V, 3nF Load

tFUGATE; VVCC = 5V, 3nF Load

tFLGATE; VVCC = 5V, 3nF Load

tPDHUGATE; VVCC = 5V, 3nF Load

tPDHLGATE; VVCC = 5V, 3nF Load

-

8

-

8

-

8

-

4

-

8

-

8

Upper Drive Source Resistance

100mA Source Current

-

1.0

Upper Drive Sink Resistance

100mA Sink Current

-

1.0

Lower Drive Source Resistance

100mA Source Current

-

1.0

Lower Drive Sink Resistance

100mA Sink Current

-

0.4

NOTES:

3. Parameter magnitude guaranteed by design.

MAX UNITS

2.00

V

1.70

V

-

V

-

mV

-

ns

-

ns

-

ns

-

ns

-

ns

-

ns

2.5

Ω

2.5

Ω

2.5

Ω

1.0

Ω

Timing Diagram

tPDHUGATE

tRUGATE

tFUGATE

UGATE

LGATE

tFLGATE

tPDHLGATE

tRLGATE

Functional Pin Description

VCC (Pin 8)

Bias supply for the IC’s small-signal circuitry. Connect this

pin to a 5V supply and locally decouple using a quality 0.1µF

ceramic capacitor.

PVCC (Pin 16)

Power supply pin for the MOSFET drives. Connect this pin to

a 5V supply and locally decouple using a quality 1µF

ceramic capacitor.

5

GND and PGND (Pins 25 and 14)

Connect these pins to the circuit ground using the shortest

possible paths. All internal small-signal circuitry is

referenced to the GND pin. LGATE drive is referenced to the

PGND pin.

VID0-4 (Pins 2, 1, 24-22)

Voltage identification inputs from microprocessor. These pins

respond to TTL logic thresholds. The ISL6315 decodes the

VID inputs to establish the output voltage; see VID Tables for

correspondence between DAC codes and output voltage

settings. These pins are internally pulled high, to

approximately 1.2V, by 40µA (typically) internal current

FN9222.0

February 10, 2006

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