AP3101P-G1_技术文档

Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

General Description

Features

The AP3101 is a green PWM controller operating in

current mode. It is specifically designed for off-line

AC-DC adapter and battery charger applications where

the needs for low standby power and better protection

function are increasing.

·

Green Current Mode PWM Controller

Adjustable Skip Level

Leading Edge Blanking (LEB)

Cycle by Cycle Current Limit

Built-in Short Circuit Protection

Built-in Synchronized Slope Compensation

Low Start-up/Operating Current: 30µA/3mA

Adjustable Oscillator Frequency

The AP3101 features adjustable oscillator frequency in

normal operation, which is done by an external resis-

tor. It automatically switches to skip cycle mode when

output power drops below a given level. The IC also · Totem Pole Output Including Soft Driving

features low start-up and operation current for its

BiCMOS process.

·

Under-Voltage Lockout (UVLO)

Accurate Over-Temperature Protection with Hys-

teresis

The AP3101 provides comprehensive protection fea-

tures including leading edge blanking, synchronized

slope compensation, over-current, over-temperature

and short circuit protection.

Applications

·

Off-line AC-DC Adapter

Battery Charger Applications

The AP3101 is available in 2 packages: SOIC-8 and

DIP-8.

SOIC-8

DIP-8

Figure 1. Package Types of AP3101

Jan. 2013 Rev. 1. 6

BCD Semiconductor Manufacturing Limited

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Pin Configuration

M Package

(SOIC-8)

P Package

(DIP-8)

GND

FB

1

2

8

7

GATE

8

7

GND

FB

1

2

3

4

GATE

VCC

VIN

RI

SENSE

ADJ

3

4

6

5

VIN

RI

SENSE

ADJ

6

5

Figure 2. Pin Configuration of AP3101 (Top View)

Pin Description

Pin Number

Pin Name

GND

FB

Function

1

2

3

4

5

6

7

8

Power ground

Feedback

VIN

Start-up current in

RI

Reference setting

ADJ

Adjust the level of skip cycle

Current sense

SENSE

VCC

GATE

The positive supply of the control IC

Driver output

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BCD Semiconductor Manufacturing Limited

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Functional Block Diagram

VCC

1

GND

ON/OFF

Driver

8

GATE

Q

D

CLK

OSC

OTP

Short Circuit

Protection

RB

6V

4

RI

Skip Cycle

4R

R

5

ADJ

6V

PWM

Internal Bias

2

6

FB

2R

R

7

3

VCC

Slope

Compensation

Current Limit

UVLO

16V/10V

LEB

SENSE

0.85V

VIN

Figure 3. Functional Block Diagram of AP3101

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Ordering Information

AP3101

-

E1: Lead Free

G1: Green

Circuit Type

TR: Tape and Reel

Blank: Tube

Package

P: DIP-8

M: SOIC-8

Part Number

Marking ID

Temperature

Range

Package

Packing Type

Lead Free

AP3101M-E1

AP3101MTR-E1

AP3101P-E1

Green

Lead Free

Green

AP3101M-G1

AP3101MTR-G1

AP3101P-G1

3101M-E1

3101M-G1

AP3101P-G1

Tube

Tape & Reel

Tube

-40 to 85^oC

SOIC-8

DIP-8

AP3101P-E1

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with

"G1" suffix are available in green packages.

Jan. 2013 Rev. 1. 6

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Absolute Maximum Ratings (Note 1)

Parameter

Symbol

Value

Unit

Supply Voltage

V_CC

30

V

Gate Output Current

I_O

600

mA

Input Voltage to FB

-0.3 to 7

150

V

Input Voltage to SENSE

Input Voltage to RI

Input Voltage to ADJ

Operating Junction Temperature

^oC

kV

V

Storage Temperature Range

T_STG

-65 to 150

ESD (Human Body Model)

ESD (Machine Model)

4

400

1350

550

83

DIP-8 Package

Power Dissipation at T_A<25^oC

P_D

mW

SOIC-8 Package

DIP-8 Package

SOIC-8 Package

Thermal Resistance (Junction to

Ambient)

^oC/W

R_θJA

186

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 indi-

cated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended

periods may affect device reliability.

Recommended Operating Conditions

Parameter

Symbol

T_A

Min

Max

85

Unit

o

Operating Ambient Temperature

Supply Voltage

-40

C

V_CC

20

V

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Electrical Characteristics

o

(V =15V, T =25 C, unless otherwise specified.)

CC

A

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

UNDER-VOLTAGE LOCKOUT SECTION

Start-up Voltage

V_THON

15

9

16

10

17

11

V

Minimum Operating Voltage

V_THOFF

TOTAL STANDBY CURRENT SECTION

Start-up Current

V_CC=14.8V

30

3

45

4

µA

Operating Current

I_CC

V_FB=V_SENSE=0V, C_L=1nF

mA

PWM SECTION

Maximum Duty Cycle

Minimum Duty Cycle

D_MAX

D_MIN

70

60

80

65

90

0

%

OSCILLATOR SECTION

Oscillation Frequency

f_OSC

R_I=26kΩ

70

2

kHz

%

Frequency Change with Voltage

Temperature Stability

V_CC=10 to 20V

o

5

%

T_A=-40 C to 85 C

FEEDBACK INPUT SECTION

The Ratio of Input Voltage to

Current Sense Voltage

2.5

3

3.5

V/V

Input Impedance

4.5

6

kΩ

mA

V

Source Current

-2

Input Voltage for Zero Duty

CURRENT SENSE SECTION

Threshold Voltage

1.2

V_TH

0.8

0.85

150

0.9

V

Delay to Output

200

ns

The Delay Time of Short Circuit

Protection

R_I=26kΩ

23

ms

OUTPUT SECTION

Low Level Voltage

High Level Voltage

Rise Time

V_OL

V_OH

t_R

I_O=200mA, V_CC=12V

I_O=50mA, V_CC=12V

V_CC=13V, C_L=1nF

1.5

V

8

150

30

250

50

350

90

ns

Fall Time

t_F

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Electrical Characteristics (Continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SKIP CYCLE SECTION

Default Skip Level

V_SKIP

1.2

V

Leading Edge Blank

R_I=26kΩ

200

270

350

ns

OVER-TEMPERATURE PROTECTION SECTION

o

Shutdown Temperature

155

25

C

o

Temperature Hysteresis

C

Typical Performance Characteristics

40

36

32

28

24

20

66

65

64

63

62

61

16

-40

-20

0

20

40

60

80

100

120

-40

-20

0

20

40

60

80

100

120

Ambient Temperature (^oC)

Figure 4. Oscillator Frequency vs. Ambient Temperature

Figure 5. Start-up Current vs. Ambient Temperature

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Typical Performance Characteristics (Continued)

4.4

4.2

4.0

3.8

3.6

3.4

3.2

3.0

2.8

2.6

16.3

16.2

16.1

16.0

15.9

15.8

15.7

15.6

15.5

15.4

15.3

-40

-20

0

20

40

60

80

100

120

-40

-20

0

20

40

60

80

100

120

Ambient Temperature (^oC)

Figure 6. Operating Current vs. Ambient Temperature

Figure 7. Start-up Voltage vs. Ambient Temperature

10.2

10.1

10.0

9.9

86

84

82

80

78

76

74

72

70

68

66

9.8

9.7

9.6

-40

-20

0

20

40

60

80

100

120

-40

-20

0

20

40

60

80

100

120

Ambient Temperature (^oC)

Figure 8. Minimum Operating Voltage

vs. Ambient Temperature

Figure 9. Duty Cycle vs. Ambient Temperature

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Typical Performance Characteristics (Continued)

1.26

1.24

1.22

1.20

1.18

1.16

1.14

135

120

105

90

75

60

45

30

-40

-20

0

20

40

60

80

100

120

12

15

18

21

24

27

30

33

36

39

42

Ambient Temperature (^oC)

Timing Resistor (kΩ)

Figure 10. Skip Level vs. Ambient Temperature

Figure 11. Oscillator Frequency vs. Timing Resistor

Operation Description

very high resistance value even in 85V line voltage;

however, higher resistance will cause longer start-up

time. So we must select a proper start-up resistor and a

The AP3101 is specially designed for off-line AC-DC

adapter and battery charger applications. It offers the

designer a cost effective solution with minimal

external components.

proper V

hold-up capacitor. Operating current is

CC

lowered to 3mA. It can reduce the requirement of V

CC

hold-up capacitor value and the power loss in AP3101.

Oscillator

The oscillation frequency is programmed by the value

of resistor R1 connected from pin RI to ground. The

resistor will make a constant current source to deter-

mine the oscillation frequency by charging and dis-

charging an internal capacitor. The oscillation

frequency can be expressed as:

Under-Voltage Lockout (UVLO)

An UVLO comparator is included in AP3101 to detect

the voltage on the VCC pin. It ensures AP3101 to draw

adequate energy from hold-up capacitor during power

on. The turn-on threshold is 16V and the turn-off

threshold is 10V.

1690

f ≈

(kHz)

Current Sense Comparator and PWM Latch

R1(kΩ)

AP3101 operates as a current mode controller, the out-

put switch conduction is initiated by every oscillator

cycle and terminated when the peak inductor current

reaches the threshold level established by the FB pin.

The inductor current signal is converted to a voltage

signal by inserting a referenced sense resistor RS

The recommended oscillation frequency is 50 to 100

kHz.

Start-up Current and Operating Current

The typical start-up current is only 30µA. With such a

low start-up current, the start-up resistor may have a

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Operation Description (Continued)

Short Circuit Protection

in series with the source of the MOSFET. The peak in-

ductor current under normal operating conditions is

controlled by the voltage at FB pin:

Built-in short circuit protection can protect a SMPS

from being damaged when short circuit of output or

over load conditions happen. The feedback voltage

will keep its value above its upper limit of 4.2V as long

as short circuit exists, and then gate driver will be

I_pk= (V_FB− 0.9) /3R_S

turned off after fixed delay time of 23 ms. When V

CC

Abnormal operating conditions occur when the power

supply output is overloaded or the output voltage sens-

ing is lost. Under these conditions, the current sense

comparator threshold will be internally clamped to

0.85V. Therefore the maximum peak switch current is:

of AP3101 dropped under the minimum operating

voltage, the device will be turned off and the system

will try to restart. The SMPS will not recover its

normal operation until the short circuit or over load is

removed.

I_{PK (max)}= 0.85/ R_S

Green Mode Operation

ADJ pin is the non-inverting input of skip cycle

comparator. The voltage at FB pin minus 0.9V is

compared with the voltage at ADJ pin. If the voltage at

ADJ pin is larger, AP3101 will start to blank its output

pulse. In normal operation, AP3101 works at fixed

Leading Edge Blanking

A narrow spike on the leading edge of the current

waveform can usually be observed when the power

MOSFET is turned on. A 270 ns leading-edge blank is

built-in to prevent the false-triggering caused by the

turn-on spike; so the RC filter on the current sense

input can be removed. During this period, the current

limit comparator is disabled and the gate driver can not

be switched off.

switching frequency, and V is in high level. When

FB

load power becomes lighter, the V will decrease.

FB

When V drops to the threshold, AP3101 will enter

FB

the skip cycle mode and operate intermittently. The

threshold is adjustable by changing the value of the

resistor connected from pin ADJ to the ground.

Built-in Slope Compensation

It is well known that a continuous current mode SMPS

may become unstable when the duty cycle exceeds

50%. The built-in slope compensation can improve the

stability, so there is no need for design engineer to

spend much time on that.

Jan. 2013 Rev. 1. 6

BCD Semiconductor Manufacturing Limited

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Typical Application

R9

10

NTC

BD1

C5

1000pF

C2

2nF

R1

1.2M

C1

100µF

L2

8µH

R2

100k

J2

T

J1

D3

C7

470µF

D1

FR107

C6

C3 22µF

1000µF

12V/3A

R3

6.2

D2

FR107

R4

20

Q1

7N60

R10

9.5k

C8 0.1µF

R6

0.5

R7

4.7k

R11

2.5k

8

7

6

5

R12

1k

Q2

AZ431

GATE VCC SENSE ADJ

U1

AP3101

R13

620

GND

1

FB

2

VIN

3

RI

R8 27k

4

U2 p521

4

3

1

2

Figure 12. Typical Application of AP3101

Jan. 2013 Rev. 1. 6

BCD Semiconductor Manufacturing Limited

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Mechanical Dimensions

SOIC-8

Unit: mm(inch)

4.700(0.185)

0.320(0.013)

1.350(0.053)

1.750(0.069)

5.100(0.201)

0.675(0.027)

0.725(0.029)

D

5.800(0.228)

6.200(0.244)

1.270(0.050)

TYP

D

20:1

0.800(0.031)

0.200(0.008)

0.100(0.004)

0.300(0.012)

0°

8°

1.000(0.039)

3.800(0.150)

4.000(0.157)

0.190(0.007)

0.250(0.010)

1°

5°

0.330(0.013)

0.510(0.020)

0.900(0.035)

)

06

(0.0

150

R0.

0.450(0.017)

0.800(0.031)

Note: Eject hole, oriented hole and mold mark is optional.

Jan. 2013 Rev. 1. 6

BCD Semiconductor Manufacturing Limited

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Data Sheet

GREEN MODE PWM CONTROLLER

AP3101

Mechanical Dimensions (Continued)

DIP-8

Unit: mm(inch)

0.700(0.028)

7.620(0.300)TYP

5°

1.524(0.060) TYP

6°

3.200(0.126)

3.600(0.142)

3.710(0.146)

4.310(0.170)

0.510(0.020)MIN

3.000(0.118)

3.600(0.142)

0.204(0.008)

0.360(0.014)

0.254(0.010)TYP

8.200(0.323)

9.400(0.370)

2.540(0.100) TYP

0.130(0.005)MIN

0.360(0.014)

0.560(0.022)

6.200(0.244)

6.600(0.260)

R0.750(0.030)

Φ3.000(0.118)

Depth

0.100(0.004)

0.200(0.008)

9.000(0.354)

9.600(0.378)

Note: Eject hole, oriented hole and mold mark is optional.

Jan. 2013 Rev. 1. 6

BCD Semiconductor Manufacturing Limited

13

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http://www.bcdsemi.com

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Fax: +86-755-8826 7865

Fax: +1-510-324-2788


型号：	AP3101P-G1
厂家：	DIODES INCORPORATED
描述：	Switching Controller, Current-mode, 70kHz Switching Freq-Max, BICMOS, PDIP8 信息通信管理光电二极管
文件：	总14页 (文件大小：747K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AP3101P-G1 [DIODES]

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