Diodes AP3039 User Manual

Data Sheet

BOOST CONTROLLER AP3039

General Description

AP3039 is a current mode high voltage low-side Nchannel MOSFET controller which is ideal for boost regulators. It contains all the features needed to implement single ended primary topology DC/DC converters.

The input voltage range of AP3039 is from 5V to 27V. Its operation frequency is adjustable from 150kHz to 1MHz.

The AP3039 has UVLO (Under Voltage Lock Out) circuit. It uses two external resistors to set the UVLO voltage. The AP3039 also has an over output voltage protection to limit the output voltage. The OVP voltage can be set through external resistors. If the output voltage is higher than the OVP high threshold point, it will disable the driver, when the output voltage drops to the OVP low threshold point, it will enable the driver. It also features a soft start to reduce the inrush current when power on, the soft start time can be set through an external capacitor.

Features

· Input Voltage Range 5V to 27V

· 0.6A Peak MOSFET Gate Driver

· 20ns Quick MOSFET Gate Driver

· Duty Cycle Limit of 90%

· Programmable UVLO

· Programmable Over Voltage Protection

· Cycle by Cycle Current Limit

· Adjustable Soft-Start

· Adjustable Operation Frequency from 150kHz to

1MHz

Applications

· LED Lighting

· Notebook

· LCD Display Modules

The AP3039 is available in QFN-3x3-16 and SOIC-14 packages.

QFN-3x3-16 SOIC-14

Figure 1. Package Types of AP3039

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Data Sheet

BOOST CONTROLLER AP3039

Pin Configuration

FN Package

(

QFN-3x3-16

Pin 1 Dot by Marking

OV

SSUVLO

)

COMP

13141516

UVLO

OV

EN

VIN

EN

VIN

NC

VCC

1

2

EP

3

49

5678

PGND

OUT

RT

CS

12

11

10

NC

FB

SHDN

AGND

Exposed PAD

M Package

(

SOIC-14

1

2

3

4

)

SS

14

COMP

13

FB

12

SHDN

11

VCC

OUT

PGND

Figure 2. Pin Configuration of AP3039 (Top View)

5

6

7

10

9

8

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AGND

CS

RT

Data Sheet

BOOST CONTROLLER AP3039

Pin Description

Pin Number

16-pin 14-pin

13 ENEnable pin

2 4 VIN Input supply pin, must be locally bypassed

Pin Name Function

3, 12 NC

45 VCC

56 OUT

6 7 PGND Power ground

7 8 RT An external resistor connected from this pin to GND to set the operating frequency

8 9 CS Sense switch current pin, which is used for current mode control and for current limit

9 10 AGND Reference ground

10 11 SHDN

11 12 FB Voltage Feedback Pin. The reference voltage is 500mV

13 13 COMP Compensation Pin. This pin is the output of the internal Error Amplifier

14 14 SS

No connection (for

6V linear regulator output pin. VCC is used to bias the gate driver for the external MOSFET. If V

bypass switch. If V

GND (recommend to connect with AGND pin) with a ceramic capacitor

Connect this pin to the gate of external MOSFET, the gate driver has 0.6A peak current capability

This pin can be connected to current matched chip and receives error signal used to shut down the system

An external soft start time capacitor is connected from this pin to ground and is charged by internal 12µA current source to control regulator soft start time

QFN-3x3-16 package only)

is less than 8.5V, the VCC is equal to VIN minus drop voltage across

IN

is less than 6V, connect VCC to VIN. This pin should be bypassed to

IN

15 1 UVLO

16 2 OV Over output voltage protection pin

EP

Two resistors connected from this pin to ground and the VIN pin respectively to set start up and shutdown level

Exposed backside pad. Solder to the circuit board ground plane with sufficient copper connection to ensure low thermal resistance (for

3

QFN-3x3-16 package only)

BCD Semiconductor Manufacturing LimitedJun. 2010 Rev. 1. 6

Data Sheet

BOOST CONTROLLER AP3039

Functional Block Diagram

VIN

EN

UVLO

OV

SHDN

RT

2 (4)

1 (3)

15 (1)

1.25V

16 (2)

1.25V

10 (11)

7 (8)

EN

OSTD

REFERENCE

22µA

OSL

1.25V

LOGIC

CLK

BYPASS SWITCH

REGULATOR

R

S

CLK

LEB

Q

REFERENCE

12µA

110mV

SAW

3V

DRIVER

+

EA

Σ

+

13 (13)

0.5V

11 (12)

14 (14)

9 (10)

4 (5)

5 (6)

6 (7)

8 (9)

VCC

OUT

PGND

CS

COMP

FB

SS

AGND

A (B) A QFN-3x3-16

B SOIC-14

SAW

Figure 3. Functional Block Diagram of AP3039

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Data Sheet

BOOST CONTROLLER AP3039

Ordering Information

AP3039 -

Circuit Type

Package

FN: QFN-3x3-16

G1: Green

TR: Tape and Reel Blank: Tube

M: SOIC-14

Package Temperature Range Part Number Marking ID Packing Type

QFN-3x3-16

o

SOIC-14

BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green.

-40 to 85

C

AP3039FNTR-G1 B2A Tape & Reel

AP3039M-G1 3039M-G1 Tube

AP3039MTR-G1 3039M-G1 Tape & Reel

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Data Sheet

BOOST CONTROLLER AP3039

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Input Voltage V

VCC Pin Voltage V

OUT Pin Voltage V

Feedback Pin Voltage V

UVLO Pin Voltage V

CS Pin Voltage V

SHDN Pin Voltage V

Enable Pin Voltage V

OV Pin Voltage V

Thermal Resistance (Junction to Ambient, no Heat sink) θ

Operating Junction Temperature T

Storage Temperature Range T

Lead Temperature (Soldering, 10sec) T

IN

CC

OUT

FB

UVLO

CS

SHDN

EN

OV

JA

J

STG

LEAD

QFN-3x3-16

SOIC-14 102

30 V

10 V

7V

V

IN

7V

60

o

C/W

150

-65 to 150

260

ESD (Machine Model) 200 V

V

o

C

o

C

o

C

ESD (Human Body Model) 2000 V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter Symbol Min Max Unit

Input Voltage

Operating Frequency f 150 1000 kHz

Operating Temperature T

V

IN

A

527V

-40 85

o

C

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