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Overview
| Topology | Flyback Converter |
| Input voltage | 90-265 V |
| Switching frequency | 20-120 kHz |
| Output 1 | 12 V / 3.5 A |
| IC revision | 1 |
Description
The AP3301 EV1 board is a Quasi-Resonant Flyback converter, operating under CCM and DCM, the valley switching on mode function will be appeared at all DCM region of variable load & high input AC line voltage conditions, it is employed with the peak-current control & multi-mode PWM control functions. Based on above the high performances are optimized & achieved. It is designed to serve as an example for High Efficiency, cost-effective & components less consumer home appliance systems. Its output power is rated at 42W with 12V-3.5A and peak power can be reach to 48W at peak time. Its input power consumption is less than 100mW at no load and meets DOE VI and CoC Tier 2 energy efficiency requirement.
Features
- Very Low Start-up Current
- Multi-Mode Control
- Quasi-Resonant Operation with Valley Lock
- Fixed Frequency CCM Operation at Low Line Heavy Load
- Non-Audible-Noise Quasi-Resonant Control
- Internal Slope Compensation
- Soft Start During Startup Process
- Frequency Fold Back for High Average Efficiency
- Secondary Winding Short Protection with FOCP
- Frequency dithering for Reducing EMI
- VCC Maintain Mode
- Useful Pin Fault Protection: SENSE Pin Floating, FB/Opto-coupler Open/Short
- Comprehensive System Protection Feature: VCC Over Voltage Protection (VOVP), Over Load Protection (OLP)
- Brown Out Protection (BNO)
- Secondary Side OVP (SOVP)
- Mini Size Package of SOT26
- Totally Lead-free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Typical applications
- Power home Appliances systems / Set-top box & TV power supply
- Switching AC-DC Adaptor & Charger / Open frame switching power supply
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | Tol. C | Size | Operating Temperature | Q | DF (%) | Ceramic Type | Fl (mm) | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Ø D (mm) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890324024002 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 220 nF | X2 | 240 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 12.5 | Bulk | ±10% | Pitch 12.5 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | 275 | – | – | 15 | 7 | 12.5 | Boxed THT | ||
 | 744822110 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | Type S | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | 1 | 10 | 360 | 250 | 1500 | MnZn | 17.5 | 13 | 22 | THT | ||
 | 860020572002 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | 6.8 µF | – | – | – | – | -40 °C up to +105 °C | 2 | Ammopack | ±20% | – | – | – | 12 | – | – | 2000 | 36 | 3 | 5 | – | – | – | 35 | – | – | 11 | – | – | – | ||
| 860021381021 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | 120 µF | – | – | – | – | -25 °C up to +105 °C | 7.5 | Ammopack | ±20% | – | – | – | 15 | – | – | 2000 | 550 | 1440 | 18 | – | – | – | 400 | – | – | 31.5 | – | – | – | ||
 | 870025375009 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-PTG5 Aluminum Polymer Capacitors | – | 680 µF | – | – | – | – | -55 °C up to +105 °C | 5 | Ammopack | ±20% | – | – | – | 10 | – | – | 2000 | 5500 | 1000 | 10 | – | – | – | 16 | – | – | 12.5 | – | – | Radial THT | ||
 | 885012007057 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | 100 pF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±5% | 0805 | -55 °C up to +125 °C | 1000 | – | NP0 Class I | 0.5 | – | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 0.6 | – | ||
| 885012007061 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | 470 pF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±5% | 0805 | -55 °C up to +125 °C | 1000 | – | NP0 Class I | 0.5 | – | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 0.8 | – | ||
| 885012007063 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | 1 nF | – | – | – | 10 GΩ | – | – | 7" Tape & Reel | ±5% | 0805 | -55 °C up to +125 °C | 1000 | – | NP0 Class I | 0.5 | – | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 0.8 | – | ||
| 885012207097 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | 68 nF | – | – | – | 7.4 GΩ | – | – | 7" Tape & Reel | ±10% | 0805 | -55 °C up to +125 °C | – | 2.5 | X7R Class II | 0.5 | – | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 0.8 | – | ||
| 885012207098 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | 100 nF | – | – | – | 5 GΩ | – | – | 7" Tape & Reel | ±10% | 0805 | -55 °C up to +125 °C | – | 2.5 | X7R Class II | 0.5 | – | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 0.8 | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890324024002 | SPEC | |
| 744822110 | SPEC | |
| 860020572002 | SPEC | |
| 860021381021 | SPEC | |
| 870025375009 | SPEC | |
| 885012007057 | SPEC | |
| 885012007061 | SPEC | |
| 885012007063 | SPEC | |
| 885012207097 | SPEC | |
| 885012207098 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | Tol. C | Size | Operating Temperature | Q | DF (%) | Ceramic Type | Fl (mm) | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Ø D (mm) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|