Diodes AP3106 User Manual

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Preliminary Datasheet

General Description

The AP3106 is a high voltage start-up, current mode
PWM controller with green-mode power-saving
operation.

The PWM switching frequency at normal operation is
externally programmable and trimmed to a narrow
range.

The AP3106 integrates a proprietary internal
frequency dithering function that helps to reduce EMI
emission of a power supply with minimum line filters
used.

To minimize the standby power consumption, a
proprietary adaptive green-mode function is available
to implement frequency modulation under light-load
conditions. To avoid acoustic noise problems, the
minimum PWM frequency is set at about 26kHz.

The AP3106 integrates a lot of functions such as the
Lead-Edge Blanking (LEB) of the current sensing,
internal slope compensation, line compensation, and
several protection features that include
cycle-by-cycle current limit (OCP), over voltage
protection, OTP, OLP and brownout prot ection.

The AP3106 is available in SOIC-7 package to
realize a compact size.

Features

High-voltage Start-up Circuit

•

• Low Start-up Current: 15µA (Max.)

• Current Mode Control

• Programmable PWM Switching Frequency

• Non-audible-noise Green Mode Control

• LEB (Leading-Edge Blanking) on SENSE Pin

• Fast OCP for Abnormal Short Circuit

• Frequency Linearly Decreasing at Light Load

• Soft Driving

• Internal Slope Compensation

• Built-in Brownout Protection

• Useful Pin Fault Protection
CS Pin Floating
RI Pin Short to Ground
RI Pin Floating

• Comprehensive System Protection
VCC Over Voltage Protection (VOVP)
Over Temperature Protection (OTP)
Constant Over Load Protection (COLP)
Short Circuit Protection (SCP)

• Compact Size SOIC-7 Package

Applications

• Switching AC/DC Adaptor

• LCD Monitor/TV Power

• Open Frame Switching Power Supply

SOIC-7

Figure 1. Package Type of AP3106

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Pin Configuration

M Package

(SOIC-7)

Figure 2. Pin Configuration of AP3106 (Top View)

Pin Description

Pin Number Pin Name Function

1

2 FB

3 SENSE Current sense pin. Connect it to sense the MOSFET current

4 GND Ground

5 GATE Gate drive output to drive the external MOSFET

RI Set the bias current to determine the normal switching frequency

Voltage feedback pin. By connecting an opto-coupler to close the
control loop, it can achieve the system regulation

6 VCC Supply voltage pin

Connect this pin to positive terminal of bulk capacitor to provide the

7 HV

startup current for the controller. When VCC voltage reachs UVLO
(on), this HV loop will be turned off to save the power loss of the
startup circuit

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Functional Block Diagram

HV

7

VCC

6

35V

OLP

FB

0.3V

UVLO

16V

8.6V
UVLO

VCC OVP

OLP

28V

OVP

35ms Timer

OSC with

Frequency Dithering

Burst

Mode

OTP

VCC OVP

SCP

UVLO

VCC

Line Sense

Line Sense

Internal Bias

25 s
Filter

PG

D

DFF

CLK

RB

QB

&

VREF

Protection

Relative Blocks

140℃

Soft

Driver

O/S

18V

OTP

R3

1

5

RI

GATE

OLP

PWM

0.85V

4ms

Soft Start

OCP

Line Sense

250ns LEB

FOCP

3

SENSE

FB

GND

R1

2

4

2R2

OLP

1.1V

R2

Figure 3. Functional Block Diagram of AP3106

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Ordering Information

AP3106 -

Circuit Type G1: Green

Package Blank: Tube
M: SOIC-7 TR: Tape & Reel

Package

SOIC-7

Temperature

Range

-40 to 85°C

Part Number Marking ID Packing Type

AP3106M-G1 3106M-G1
AP3106MTR-G1 3106M-G1

Tape & Reel

Tube

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

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Power Supply Voltage VCC 30 V
Input Voltage to High Voltage Pin

(HV)
GATE Output Current I

600 V

V

HV

500 mA

GATE

Input Voltage to FB, SENSE VFB, V
Thermal Resistance

(Junction to Ambient)
Power Dissipation at TA<25ºC PD 550 mW

Operating Junction Temperature TJ -40 to 150 °C
Storage Temperature T
ESD (Human Body Model) 3000 V
ESD (Machine Model) 300 V

SENSE

θ

JA

150 °C

STG

-0.3 to 7 V
186 °C/W

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

Supply Voltage VCC 10 25 V
Ambient Temperature TA -40 85 °C

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Electrical Characteristics

V

=16V, TA=25°C, unless otherwise specified.

IN

Parameter Conditions Min Typ Max Unit
HIGH-VOLTAGE SUPPLY (HV Pin)

High-Voltage Current Source VCC<UVLO (on) , VHV=400V 1 2 3.5 mA

Off-State Leakage Current

SUPPLY VOLTAGE (VCC Pin)

Start-up Current VCC=14.8V 5 15

Operating Supply Current

UVLO (on) 15 16 17 V
UVLO (off) 7.6 8.6 9.6 V
VCC OVP 27 28 30 V
VCC Clamp ICC=5mA 35 V
De-latch VCC 3.8 5.7 7 V

OSCILLATOR SECTION

Maximum Duty Cycle 70 75 80
Minimum Duty Cycle 0
Oscillation Frequency
Green Mode Frequency
Frequency Temperature Stability -40 to 85°C 5 %
Frequency Voltage Stability VCC=12V to 30V 5 %
Frequency Dithering

CURRENT SENSE SECTION (SENSE Pin)

Maximum SENSE Voltage VHV=100V 0.8 0.85 0.9 V
The Ratio of Input Voltage

to Current Sense Voltage
LEB Time of SENSE

Delay to Output 100 ns
Soft Start Time

FEEDBACK INPUT SECTION (FB Pin)

Short Circuit Current VFB=0V -0.6 -0.3 mA
Green Mode Threshold VFB 2.1 V
Burst Mode Threshold VFB 0.89 1.15 1.41 V
Open Loop Voltage FB pin open 4.8 5.4 6 V
Input Impendence 10 16 22

VCC>UVLO (off), VHV=100V 2.5
V

>UVLO (off), VHV=400V 10 18

CC

VFB=0V, CL=1nF 0.2 0.6 1
V

=3V, CL=1nF 1.5 2.5 3.5

FB

R

=100kΩ

I

R

=100kΩ

I

∆f/center frequency

2.5 3 3.5 V/V

R

=100kΩ

I

R

=100kΩ

I

60 65 70 kHz

28 kHz

150 250 350 ns

3 4 5 ms

±6

%

µA

µA

mA

%

kΩ

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Electrical Characteristics (Continued)

V

=16V, TA=25°C, unless otherwise specified.

IN

Parameter Conditions Min Typ Max Unit

Output Low Level I
Output High Level I
Output Clamping 15.5 17.5 19.5 V
Rising Time CL=1nF 150 250 350 ns
Falling Time CL=1nF 30 50 90 ns

BROWNOUT PROTECTION

Turn-on DC Input (HV), VON
Turn-off DC Input (HV), V

OFF

De-bounce Time of Enable 25
De-bounce Time of Turn Off

OVER-TEMPERATURE PROTECTION SECTION

Shutdown Temperature 140 °C
Temperature Hysteresis 20 °C

DELAY TIME SECTION

Delay 1
Delay 2

=50mA, VCC=12V 1 V

GATE

=50mA, VCC=12V 8 V

GATE

R=0k
R=0k

97 105 113 V

VON-5 V

µs

VFB=3V, R

Short circuit, OLP, R

=100kΩ

I

=100kΩ

I

VCC OVP, brown out, R

=100kΩ

I

25 35 45 ms

25 35 45 ms

25

µs

Typical Performance Characteristics

16.3

16.2

16.1

16.0

15.9

15.8

Start-up Voltage (V)

15.7

15.6

15.5

-60 -40 -20 0 20 40 60 80 100 120 140 160

Figure 4. Start-up Voltage vs. Ambient Temperature Figure 5. Shutdown Voltage vs. Ambient Temperature

Ambient Temperature (oC)

8.60

8.55

8.50

8.45

8.40

8.35

Shutdown Voltage (V)

8.30

8.25

8.20

-60 -40 -20 0 20 40 60 80 100 120 140 160

Ambient Temperature (oC)

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Typical Performance Characteristics (Continued)

5.0

4.8

4.6

4.4

4.2

4.0

3.8

Start-up Current (µA)

3.6

3.4

3.2

-60 -40 -20 0 20 40 60 80 100 120 140 160

Ambient Temperature (oC)

2.80

2.75

2.70

2.65

2.60

2.55

2.50

2.45

Operating Current (mA)

2.40

2.35

2.30

-60 -40 -20 0 20 40 60 80 100 120 140 160

Ambient Temperature (oC)

Figure 6. Start-up Current vs. Ambient Temperature Figure 7. Operating Current vs. Ambient Temperature

0.90

0.89

0.88

0.87

0.86

0.85

0.84

OCP Voltage (V)

0.83

0.82

0.81

0.80

-60 -40 -20 0 20 40 60 80 100 120 140 160

Ambient Temperature (oC)

Figure 8. OCP Voltage vs. Ambient Temperature Figure 9. Switching Frequency vs. Ambient Temperature

65.0

64.5

64.0

63.5

63.0

Switching Frequency (kHz)

62.5

62.0

-60 -40 -20 0 20 40 60 80 100 120 140 160

Ambient Temperature (oC)

Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Typical Application

Figure 10. Typical Application of AP3106

Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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Preliminary Datasheet

HIGH VOLTAGE GREEN MODE PWM CONTROLLER AP3106

Mechanical Dimensions

SOIC-7 Unit: mm(inch)

Sep. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited

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BCD Semiconductor Manufacturing Limited

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