Diodes AP6714 Manual do Utilizador descarregar pdf (Página 2)

AP6714

1.8MHz SYNCHRONOUS BOOST CONVERTER

AP6714

Document number: DS31490 Rev. 5 - 2

2 of 11

www.diodes.com

April 2011

© Diodes Incorporated

Pin Descriptions

Pin Name Pin # Description

V

CC

1 Power Input pin

EN 2 Enable Channel

CC 3 Channel Compensation Pin

FB 4 Channel Feedback Pin

REF 5 Internal Reference Voltage

SGND 6 Signal Ground

PGND 7 Power Ground

OCP 8 Over Current Protection

LX 9 SW Pin

OUT 10 Boost Output Pin

Functional Block Diagram

EN

FB

REF

Error

Amplifier

-

+

-

+

SGND

BANDGAP

Vref=1.23V

Soft-Start

Thermal - shutdown

Bias

Oscillator

Ramp

PWM

Comparator

Schmitt-Trigger

PWM

Control

&

Anti -

Through

Logic

LX

PGND

OCP

Current - Limit

+

-

0.16V

OCP

Comparator

ZCR

Comparator

+

-

Power-Good

CC

VCC

OUT

Absolute Maximum Ratings

Symbol Parameter Rating Unit

ESD HBM Human Body Model ESD Protection 3 KV

ESD MM Machine Model ESD Protection 250 V

OUT, V

CC

, EN, FB, OCP to GND

-0.3 to +6.5 V

LX to GND -0.3 to (OUT + 0.3) V

I

LX

LX Current 1.6 A

REF, CC to GND

-0.3 to (V

CC

+ 0.3)

V

P

D

Continuous Power Dissipation (T

A

= 25

o

C)

850 mW

T

J

Operating Junction Temperature Range -40 to +125

o

C

T

ST

Storage Temperature Range -65 to +150

o

C

1 2 3 4 5 6 7 ... 10 11

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