
AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Description
The AP3107Z is the high voltage start-up, current mode PWM
controller with green mode power-saving operation.
To minimize the standby power consumption, a proprietary adaptive
green mode function provides frequency modulation at light load
conditions. To avoid acoustic noise problems, the minimum PWM
frequency is set at about 26kHz.
The AP3107Z features proprietary frequency dithering function
internally that helps to reduce EMI emission of a power supply with
minimum line filters used.
The AP3107Z also integrates a lot of functions such as Leading-Edge
Blanking (LEB) of the current sensing, internal slope compensation,
line compensation and several protection features. The protection
functions include cycle-by-cycle current limit (OCP), over voltage
protection, OTP, OLP and brownout protection.
The AP3107Z is available in SO-7 package.
Features
• High-voltage Start-up Circuit
• Low Start-up Current: 15μA Max.
• Fixed Oscillation Frequency: 65kHz
• Ultra Low Standby Power Application
• Non-audible-noise Green Mode Control
• LEB (Leading-edge Blanking) on SENSE Pin
• Soft Driving
• Fast OCP for Abnormal Short Circuit
• Frequency Linearly Decreasing at Light Load
• Internal Slope Compensation
• Programmable Brownout Protection
• Useful Pin Fault Protections
• SENSE, FB Pins Floating
• FB Short to Ground
• Comprehensive System Protections
• VCC Over Voltage Protection (VOVP)
• Over Temperature Protection (OTP)
• Constant Over Load Protection (COLP)
• Short Circuit Protection (SCP)
• Compact Size SO-7 Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
SO-7
Applications
• Switching AC/DC Adaptor
• LCD Monitor/TV Power
• Open Frame Switching Power Supply
1
2
3
4
7
6
5
BNO
SENSE
FB
GND
GATE
VCC
HV
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
HIGH VOLTAGE GREEN MODE PWM CONTROLLER

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Brownout Protection Pin. Connected to GND by a resistor to set the brownout level. This pin is
shortened to the ground to set the maximum brownout voltage
Voltage Feedback Pin., Connecting it with an opto-coupler to close the control loop can
achieve system regulation
Current Sense Pin. Connect it to sense the MOSFET current
Gate drive output to drive the external MOSFET
Connect this pin to the positive terminal of bulk capacitor to provide start-up current for the
controller. When VCC voltage reaches UVLO (on), this HV loop will be turned off to save the
power loss of the start-up circuit
R10
5.1k
C10
0.1F
C4
R9
4.7k
R8
20k
C3
2nF
R4
R12
620
R7
0.5
Q1
7N60
BD1
R2
100k
V
OUT
J1
C2
100F
1
2
4
3
U2
U3 AZ431
D2
FR107
R5
510
R1
20k
C9
470F
L2 5H
D3
C8
1000F
T
HV
BNO
GATE
VCC
FB
GND
U1 AP3107Z
22F
C1
D1
C7
C6
C5
SENSE
2k
R11
0.1F
470pF
R3
R6
MBR20H100C
L1
J2
C11
D4
R13
Typical Applications Circuit
Pin Descriptions

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Soft
Driver
18V
QBD
CLK
RB
DFF
OSC with
Frequency Dithering
2R2
OCP
0.85V
Burst
Mode
PWM
OLP
OLP
OTP
VCC OVP
UVLO
UVLO
16V
Internal Bias
0.3V
PG
25s
Filter
4ms
Soft Start
OTP
140
℃
FOCP
35V
8.6V
R2
1.1V
VCC
6
FB
2
GND
4
SENSE
3
GATE
5
HV
7
250ns LEB
R3
R1
BNO
1
BNO Sense
Line Sense
Line Sense
28V
VCC OVP
OVP
2.2V
35ms
Filter
OLP
BOK OFF
BOK ON/OFF
Line Sense
PG
VDD
BOK ON
R4
Functional Block Diagram

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Input Voltage to FB, SENSE
Thermal Resistance
(Junction to Ambient)
Power dissipation at TA<25ºC
Operating Junction Temperature
Absolute Maximum Ratings (Note 4)
Note 4: 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

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
High-voltage Supply (HV Pin)
High-voltage Current Source
Off-state Leakage Current
VCC>UVLO (off), VHV=100V
VCC>UVLO (off), VHV =400V
Operation Supply Current
VFB=0V, CL=1nF
Frequency Temperature Stability
Frequency Voltage Stability
Current Sense Section (SENSE Pin )
The Ratio of Input Voltage
to Current Sense Voltage
Feedback Input Section ( FB Pin )
Green Mode Threshold, VFB
Burst Mode Threshold, VFB
Electrical Characteristics (@V
=16V, TA=25ºC , unless otherwise specified.)
CC

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Output Section ( GATE Pin )
Turn-on DC Input (HV), VON
Turn-off DC Input (HV),V
OFF
De-bounce Time of Turn off
Over-temperature Protection
Center frequency
Short circuit, OLP
Electrical Characteristics (@V
=16V, TA=25ºC , unless otherwise specified. Cont.)
CC

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
-60 -40 -20 0 20 40 60 80 100 120 140 160
15.5
15.6
15.7
15.8
15.9
16.0
16.1
16.2
16.3
Start-up Voltage (V)
Ambient Temperature (oC)
-60 -40 -20 0 20 40 60 80 100 120 140 160
8.20
8.25
8.30
8.35
8.40
8.45
8.50
8.55
8.60
Shutdown Voltage (V)
Ambient Temperature (oC)
-60 -40 -20 0 20 40 60 80 100 120 140 160
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
Start-up Current (
A)
Ambient Temperature (oC)
-60 -40 -20 0 20 40 60 80 100 120 140 160
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
Operating Current (mA)
Ambient Temperature (oC)
-60 -40 -20 0 20 40 60 80 100 120 140 160
0.80
0.81
0.82
0.83
0.84
0.85
0.86
0.87
0.88
0.89
0.90
OCP Voltage (V)
Ambient Temperature (oC)
-60 -40 -20 0 20 40 60 80 100 120 140 160
62.0
62.5
63.0
63.5
64.0
64.5
65.0
Switching Frequency (kHz)
Ambient Temperature (oC)
Performance Characteristics
Start-up Voltage vs. Ambient Temperature Shutdown Voltage vs. Ambient Temperature
Start-up Current vs. Ambient Temperature Operating Current vs. Ambient Temperature
OCP Voltage vs. Ambient Temperature Switching Frequency vs. Ambient Temperature

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
AP3107Z X XX - G1
Packing
Package
TR : Tape & Reel
M : SO-7
G1 : Green
Product Name
RoHS/Green
Blank : Tube
First and Second Lines: Logo and Marking ID
(See Ordering Information)
Third Line: Date Code
Y: Year
WW: Work Week of Molding
A: Assembly House Code
XX: 7th and8th Digits of Batch No.
Ordering Information
Diodes IC’s Pb-free products with "G1" suffix in the part number, are RoHS compliant and green.
Marking Information

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
3.800(0.150)
4.000(0.157)
1.270(0.050)
TYP
4.700(0.185)
5.100(0.201)
0.330(0.013)
0.510(0.020)
0.190(0.007)
0.250(0.010)
0.100(0.004)
0.250(0.010)
1.350(0.053)
1.750(0.069)
0.450(0.017)
0.800(0.031)
8
°
0
°
5.800(0.228)
6.200(0.244)
2.54(0.100)
TYP
1.250(0.049)
1.500(0.059)
Note: Eject hole, oriented hole and mold mark is optional.
Package Outline Dimensions (All dimensions in mm(inch).)
(1) Package Type: SO-7

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Suggested Pad Layout
(1) Package Type: SO-7

AP3107Z
Document number: DS36677 Rev. 2 - 1
November 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
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www.diodes.com
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