AP3103 BCDSEMI [BCD Semiconductor Manufacturing Limited], AP3103 Datasheet

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AP3103

Manufacturer Part Number
AP3103
Description
VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER
Manufacturer
BCDSEMI [BCD Semiconductor Manufacturing Limited]
Datasheet

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General Description
The AP3103 is a low startup current, current mode
PWM controller with green-mode power-saving opera-
tion. The PWM switching frequency at normal opera-
tion is externally programmable and is trimmed to a
tigh range. The dithering of frequency will improve
EMI feature. When the load decreases, the frequency
will reduce and when at a very low load, the IC will
enter the ‘skip mode’ to minimize switching loss.
About 20kHZ frequency switching is aviode the audi-
ble noise as well as reduding the standby loss.
The AP3103 features a lot of functions such as the
Leading-Edge Blanking (LEB) of the current sensing,
internal slope compensation and several protection
functions including cycle-by-cycle current limit
(OCP), VCC Over Voltage Protection (VOVP), OTP,
OLP protection.
This IC is available in SOT-23-6 and DIP-8 packages.
Feb. 2010 Rev. 1. 0
VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER
SOT-23-6
Figure 1. Package Types of AP3103
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Features
Applications
Bi-CMOS Process with Excellent Performance
Very Low Start-up Current:(< 15µA)
Current Mode Control
Non-audible-noise Green-mode Control
LEB (Leading-edge Blanking) on CS Pin
Internal Slope Compensation
Frequency Fold Back for High Average Effi-
ciency
Soft Switching for Reducing EMI
Useful Pin Fault Protection:
CS Pin Floating
Comprehensive System Protection Feature:
Mini Size with Packages
Switching AC-DC Adapter/Charger
ATX/BTX Auxiliary Power
Set-top Box(STB) Power Supply
Open Frame Switching Power Supply
RI Pin Short to Ground
RI Pin Floating
FB/Opt-coupler Open/short
VCC Over Voltage Protection (VOVP)
Over Temperature Protection (OTP)
Over Load Protection (OLP)
BCD Semiconductor Manufacturing Limited
DIP-8
Preliminary Datasheet
AP3103

AP3103 Summary of contents

Page 1

... About 20kHZ frequency switching is aviode the audi- ble noise as well as reduding the standby loss. The AP3103 features a lot of functions such as the Leading-Edge Blanking (LEB) of the current sensing, internal slope compensation and several protection ...

Page 2

... GATE 6 VCC 5 SENSE 4 Figure 2. Pin Configuration of AP3103 (Top View) Signal ground. Current return for driver and control circuits Feedback. Directly connected to the opto-coupler Set the bias current to determine the normal switching frequency Current Sense Supply voltage of driver and control circuits Gate driver output No connection ...

Page 3

... VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER Functional Block Diagram 15V 8.8V 5 VCC 35.5V 28V OSC VDD 0. 1.1V 1 GND Figure 3. Functional Block Diagram of AP3103 Feb. 2010 Rev Internal Bias UVLO &VREF OTP OVP OVP OLP D QB DFF CLK RB 140℃ Line Compensation OLP ...

Page 4

... BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green. Feb. 2010 Rev AP3103 - Part Number AP3103KTR-G1 GHL AP3103P-G1 AP3103P-G1 BCD Semiconductor Manufacturing Limited 4 Preliminary Datasheet AP3103 G1: Green TR: Tape and Reel Blank: Tube Marking ID Packing Type Tape & Real Tube ...

Page 5

... FB, SENSE SOT-23-6 θ JA DIP-8 SOT-23 DIP-8 T -40 to150 J T 150 STG 3000 300 Symbol Min -40 A BCD Semiconductor Manufacturing Limited 5 Preliminary Datasheet AP3103 Unit 250 o C/W 100 500 mW 1250 Max Unit ...

Page 6

... BCD Semiconductor Manufacturing Limited AP3103 Unit µ kHz kHz % % % V/V kΩ ...

Page 7

... Over Temperature Protection Section Shutdown Temperature Temperature Hysteresis Delay Time Section Delay 1 of Protection Delay 2 of Protection Feb. 2010 Rev Conditions OLP VCC OVP BCD Semiconductor Manufacturing Limited 7 Preliminary Datasheet AP3103 Min Typ Max Unit 140 µs ...

Page 8

... C) Figure 5. Shutdown Voltage vs. Ambient Temperature 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 100 120 0.0 - Figure 7. Operation Current vs. Ambient Temperature 8 Preliminary Datasheet -40 - 100 o Ambient Temperature ( C) - 100 o Ambient Temperature ( C) BCD Semiconductor Manufacturing Limited AP3103 120 140 160 120 140 ...

Page 9

... Typical Performance Characteristics (Continued) 28.4 28.2 28.0 27.8 27.6 27.4 -40 - Ambient Temperature ( Figure 8. VCC OVP vs. Ambient Temperature Feb. 2010 Rev 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 80 100 120 140 - Figure 9. f BCD Semiconductor Manufacturing Limited 9 Preliminary Datasheet AP3103 - 100 o Ambient Temperature ( C) vs. Ambient Temperature OSC 120 140 ...

Page 10

... AC input. An UVLO comparator is included in AP3103 to detect the voltage on the VCC pin. It ensures that AP3103 can draw adequate energy from hold-up capacitor during power on. The turn-on threshold is 15V and the turn- off threshold is 8.8V. ...

Page 11

... VCC OUT C1 RI AP3103 VR1 R7 GND ~ Feb. 2010 Rev R19 R10 R9 CS C11 R11 FB Figure 10. Typical Application of AP3103 11 Preliminary Datasheet R13 C8 C7 R14 C10 R12 AZ431 C9 BCD Semiconductor Manufacturing Limited AP3103 R15 R16 R17 R18 U2 ...

Page 12

... Preliminary Datasheet Unit: mm(inch) 0° 8° 0.200(0.008) 0.300(0.012) 0.600(0.024) 0.100(0.004) 0.200(0.008) 1.450(0.057) MAX BCD Semiconductor Manufacturing Limited AP3103 ...

Page 13

... DIP-8 1.524(0.060) TYP 3.200(0.126) 3.600(0.142) 0.510(0.020)MIN 2.540(0.100) TYP 0.130(0.005)MIN 6.200(0.244) 6.600(0.260) BCD Semiconductor Manufacturing Limited 13 Preliminary Datasheet AP3103 Unit: mm(inch) 0.700(0.028) 7.620(0.300)TYP 5° 0.204(0.008) 0.360(0.014) 8.200(0.323) 9.400(0.370) ...

Page 14

BCD Semiconductor Manufacturing Limited BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- ...

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