AP2004 datasheet, PDF - EEWORLD Datasheet

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AP2004: DescriptionER 3C 3#12 SKT RECP; File Size174KB，8 Pages; ManufacturerAnachip; Websitehttp://www.anachip.com/

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AP2004 Overview

ER 3C 3#12 SKT RECP

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AP2004

PWM Buck Controller

Features

- PWM Buck Control Circuitry

- Operating voltage can be up to 27V

- Under voltage Lockout (UVLO) Protection

- Short Circuit Protection (SCP)

- Soft-start circuit

- Variable Oscillator Frequency -- 300Khz Max

- 1.25V voltage reference Output

- 8-pin PDIP and SOP packages

General Description

The AP2004 integrates Pulse-Width-Modulation

(PWM) control circuit into a single chip, mainly

designs for power-supply regulator. All the functions

include an on-chip 1.25V reference output, an error

amplifier, an adjustable oscillator, a soft-start,

UVLO, SCP circuitry, and a push-pull output circuit.

Switching frequency is adjustable by trimming CT.

During low VCC situation, the UVLO makes sure

that the outputs are off until the internal circuit

operates normally.

Applications

- Backlight inverter

- LCD Monitor

- XDROM, XDSL Product

- DC/DC converters in computers, etc.

Pin Assignment

( Top View )

OUT

VCC

COMP

Pin Descriptions

Name

GND

SCP

Description

Timing Capacitor

Voltage Feedback

Soft-Start.

Feedback Loop Compensation

PWM Output

Ground

Supply Voltage

Short Circuit Protection

COMP

OUT

GND

VCC

SCP

PDIP/SOP

Ordering Information

AP2004 X

Package

N: PDIP-8L

S: SOP-8L

Lead Free

Packing

Blank : Tube

Blank : Normal

L : Lead Free Package A : Taping

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 0.4 Arpr 6, 2004

1/8

AP2004 Related Products

	AP2004	AP2004N	AP2004NA	AP2004NL	AP2004NLA	AP2004S	AP2004SL	AP2004SA	AP2004SLA
Description	ER 3C 3#12 SKT RECP	PWM Buck Controller	0.2 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP8	PWM Buck Controller	PWM Buck Controller	0.2 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO8	PWM Buck Controller	0.2 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO8	PWM Buck Controller
Is it Rohs certified?	-	incompatible	-	conform to	-	incompatible	conform to	incompatible	conform to
package instruction	-	DIP, DIP8,.3	-	DIP, DIP8,.3	-	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25
Reach Compliance Code	-	unknow	-	unknow	-	unknow	unknow	unknown	unknow
control mode	-	VOLTAGE-MODE	-	VOLTAGE-MODE	-	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE	VOLTAGE-MODE
JESD-30 code	-	R-PDIP-T8	-	R-PDIP-T8	-	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
Number of terminals	-	8	-	8	-	8	8	8	8
Maximum operating temperature	-	85 °C	-	85 °C	-	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-	-20 °C	-	-20 °C	-	-20 °C	-20 °C	-20 °C	-20 °C
Package body material	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	DIP	-	DIP	-	SOP	SOP	SOP	SOP
Encapsulate equivalent code	-	DIP8,.3	-	DIP8,.3	-	SOP8,.25	SOP8,.25	SOP8,.25	SOP8,.25
Package shape	-	RECTANGULAR	-	RECTANGULAR	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	IN-LINE	-	IN-LINE	-	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
Certification status	-	Not Qualified	-	Not Qualified	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
surface mount	-	NO	-	NO	-	YES	YES	YES	YES
Maximum switching frequency	-	300 kHz	-	300 kHz	-	300 kHz	300 kHz	300 kHz	300 kHz
technology	-	BIPOLAR	-	BIPOLAR	-	BIPOLAR	BIPOLAR	BIPOLAR	BIPOLAR
Temperature level	-	OTHER	-	OTHER	-	OTHER	OTHER	OTHER	OTHER
Terminal form	-	THROUGH-HOLE	-	THROUGH-HOLE	-	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	-	2.54 mm	-	2.54 mm	-	1.27 mm	1.27 mm	1.27 mm	1.27 mm
Terminal location	-	DUAL	-	DUAL	-	DUAL	DUAL	DUAL	DUAL
Maker	-	-	-	Anachip	-	Anachip	Anachip	Anachip	Anachip

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