RT8206L Просмотр технического описания (PDF) - Richtek Technology

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RT8206L

High Efficiency, Main Power Supply Controller for Notebook Computers

Richtek Technology 

Function Block Diagram

TON SKIP

BOOT1

UGATE1

PHASE1

LGATE1

PGND

VOUT1

FB1

ILIM1

PGOOD1

GND

BYP

LDO

VIN

PVCC

SMPS1

PWM Buck

Controller

SW Threshold

Internal

Logic

LDO

Thermal

Shutdown

SMPS2

PWM Buck

Controller

PVCC

Power-On

Sequence

Clear Fault Latch

REF

TON VIN

Function Block Diagram

RT8206L/M

BOOT2

UGATE2

PHASE2

LGATE2

VOUT2

FB2

ILIM2

PGOOD2

VCC

PVCC

ENLDO

EN1

EN2

REF

VOUT

REF

FB

PGOOD

On-Time

Compute

+

-

+-

Q

TON

R

1-Shot

TRIG

- Comp

+

TOFF

TRIG 1-Shot

Q

1.1 x VREF

0.55 x VREF

0.9 x VREF

Over-Voltage

+

Fault

-

Latch

-

Blanking

+

Time

Under-Voltage

-

+

SS

Time

Current

Limit

+

-

25kHz

+

Detector Zero -

Detector

VCC

+

-

UGATE

LGATE

ILIM

PHASE

SKIP

PWM Controller (One Side)

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

DS8206L/M-07 June 2012

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

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