AP8366 AITSEMI | Alldatasheet
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AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 1 - DESCRIPTION FEATURES The AP8366 consists of a Low Standby -Power Quasi-Resonant (QR) Primary-Side controller and a avalanche-rugged smart power VDMOSFET (AP8366-A/B 700V, AP8366-C 800V), specifically designed for a high performance AC/DC charger or adaptor with minimal external components. AP8366 operates in primary-side sensing and regulation, so opto-coupler and A431 could be eliminated. Because of internal HV Start -up circuit, the system with AP8366 can achieve less than 30mW standby power consumption (230VAC). In CV mode, multi -mode and quasi resonant technique is utilized to achieve high efficiency, avoid audible noise and make the system meeting Energy star class VI. Good load regulation is achieved by the built -in cable drop compensation. In CC mode, the current and output power setting can be adjusted externally by the sense resistor RCS at CS pin. AP8366 offers complete protections including Cycle-by-Cycle current limiting protection (OCP), over voltage protection (OVP), over temperature protection (OTP) and CS open or short protection (CSO/SP) etc. The AP8366 is available in SOP7 package.
ORDERING INFORMATION
SPQ: 4,000pcs/Reel AP8366M7R-Y AP8366M7VR-Y Note Y: VBVDSS & RDS(ON) A: 650V RDS(ON)=13.5Ω B: 650V RDS(ON)=8Ω C: 790V RDS(ON)=10Ω V: Halogen free Package R: Tape & Reel AiT provides all RoHS products Internal avalanche -rugged smart power VDMOSFET Internal HV Start -up Circuit, Standby power consumption < 30mW at 230VAC Multi-mode and Quasi -Resonant technique achieve high efficiency, meeting energy star class VI ±5% CC Regulation at Universal AC input Primary-side Sensing and Regulation without A431 and Opto-coupler Programmable Cable Drop Compensation No-need Control Loop Compensation Capacitance Excellent Protection Coverage: Over Temperature Protection (OTP) VDD Under/Over Voltage Protection (UVLO&OVP) Cycle-by-Cycle Current Limiting (OCP) CS Short/Open Protection (CS O/SP) CV mode accurate: ±5% Available in SOP7 Package APPLICATION Switch AC/DC Adaptor Battery Charger TYPICAL APPLICATION Component Parameter and Layout Considerations: 1. VDD capacitor EC1 should be placed at the nearest place from the VDD pin and the GND pin.
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 2 - PIN DESCRIPTION Top View Pin # Symbol Function
1 VDD Power supply
2 NC No connection
The voltage feedback from auxiliary winding. Connected to resistor divider from auxiliary winding reflecting output voltage.
4 CS Current Sense Input
5, 6 SW Avalanche-rugged power MOSFET Drain pin. The Drain pin is connected to the primary lead of the transformer.
7 GND Ground
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 3 - ABSOLUTE MAXIMUM RATINGS Supply Voltage Pin VDD -0.3V ~ 40V High-Voltage Pin, SW (AP8366-A/B) -0.3V ~ 650V High-Voltage Pin, SW (AP8366-C) -0.3V ~ 790V Pin FB, CS -0.3V ~ 5.5V Operating Junction Temperature -40℃ ~ 150℃ Storage Temperature Range -55℃ ~ 150℃ Lead Temperature (Soldering, 10Secs) 260℃ ESD Protection (HBM, ESDA/JEDEC JDS-001-2014) ±4.0kV Maximum Pulse Drain Current (tPULSE=100us) 1.0A Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. OUTPUT POWER TABLE Part Number Adapter NOTE 85-265 VAC AP8366 6W NOTE: Maximum output power is tested in an adapter at 45°C ambient temperature, with enough cooling conditions.
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 4 -
ELECTRICAL CHARACTERISTICS
TA = 25℃, VDD= 21V, unless otherwise noted Parameter Symbol Conditions Min. Typ. Max. Unit Power Section Break-Down Voltage -AP8366-A/B BVDSS ISW = 250uA, TJ = 25℃ 650 700 - V Break-Down Voltage -AP8366-C BVDSS ISW = 250uA, TJ = 25℃ 790 830 - V Drain-Source on State Resistance- AP8366-A RDS(on) ISW = 0.5A, TJ = 25℃ - 13.5 - Ω Drain-Source on State Resistance- AP8366-B RDS(on) ISW = 0.5A, TJ = 25℃ - 8 - Ω Drain-Source on State Resistance-AP8366-C RDS(on) ISW = 0.5A, TJ = 25℃ - 10 - Ω Off-State Drain Current IOFF VSW = 500V - - 100 uA Start Up Threshold VSW_START VDD=VDDon - 1V - 30 - V Supply Voltage Section Operating Voltage Range VDD 8 - 30 V VDD Start Up Threshold VDDon 14.5 16.5 18.5 V VDD Under Voltage Shutdown Threshold VDDoff 7.5 8.5 9.5 V VDD Over Voltage Protect VDDovp 30 34 38 V Supply Current Section VDD Charge Current IDD_CH VDD=VDDon - 1V, VSW=100V - 0.85 - mA Operating Current, Switching IDD VDD = VDDon＋1V 0.3 0.5 0.7 mA Operating Current After Fault IDD_FAULT VDD＝15V after fault - 0.5 - mA
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 5 - Parameter Symbol Conditions Min. Typ. Max. Unit Current Sense Section Current Sense Threshold VTH_OC 485 500 515 mV Maximum Current Sense Threshold VTH_OC_MAX - 560 - mV Minimum CS Threshold Vcs_min - 170 - mV Leading Edge Blanking Time tLEB - 300 - ns Maximum ton tonmax - 50 - us OCP Propagation Delay tD_OC - 100 - ns FB Section Reference Voltage for Feedback Threshold VREF_CV 2.475 2.5 2.525 V Output Over Voltage Protection Threshold VFBOVP 2.85 3 3.15 V Output Under Voltage Threshold VUVP - 1.55 - V Maximum Cable Compensation Current Icable VFB=0V 22 24 26 uA Minimum toff toffmin - 5 - us Maximum toff toffmax - 2.2 - ms Output Under Voltage Protection Blanking Time tUVP fSW= 50kHz 40 - 64 ms Thermal Section Thermal Shutdown Temperature Threshold TSD 135 150 - °C Thermal Shutdown Hysteresis THYST - 30 - °C
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 6 - TYPICAL CHARACTERISTICS 1. AP8366-A BV vs. TJ 2. AP8366-A Rdson vs. TJ 3. AP8366-B BV vs. TJ 4. AP8366-B Rdson vs. TJ 5. AP8366-C BV vs. TJ 6. AP8366-C Rdson vs. TJ
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 7 - 7. VDDoff vs. TJ 8. VDDon vs. TJ 9. VDD_OVP vs. TJ 10. Icable vs. TJ 11. VREF_CV vs. TJ 12. VTH_OC vs. TJ
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 8 - BLOCK DIAGRAM
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 9 - DETAILED INFORMATION Functional Description The AP8366 is a high performance CC/CV primary-side controller. AP8366 operates in primary-side sensing and regulation, so opto -coupler and A431 could be eliminated. Proprietary built -in CV and CC control can achieve high precision CC/CV control meeting most charger and adapto r application requirements. Internal HV Start-up circuit and the chip’s low consumption help the system to meet strict standby power standard. HV Start up Control At start up, the internal high -voltage start-up circuit provides the internal bias and charg es the external VDD capacitor, so that AP8366 starts up quickly. When V DD reaches VDDon, the device starts switching and the internal high -voltage current source stops charging the capacitor. The device keeps in normal operation provided as long as V DD keeps above VDDoff. After startup, the bias is supplied from the auxiliary transformer winding, the current of HV start-up circuit is designed to be very low so that the power consumption is very low. CC Operation Mode In CC operation mode, the AP8366 captur es the auxiliary flyback signal at FB pin through a resistor dividing-network. The pulse width of the auxiliary flyback signal determines the AP8366 oscillator frequency. The higher the output voltage is, the shorter the pulse width is, and the higher the chip oscillator frequency is, thus the constant output current can be achieved. The current waveform of DCM mode is shown in Figure 1. During MOSFET turn -on time, the current in the primary winding (Ipri) ramps up. When MOSFET turns off, the energy stored in the primary winding is transferred to the secondary side, so the peak current in the secondary winding is Isec-pk = Ipri_pk × Nps (1) The output current is p demag sense CS ps p demagsec_pk O T T R VN2 T Tx2 II (2) Because Vipk is constant and Tp is equal to tow times Tdemag, the output current Io is constant.
MOSFET on-state so that the external RC filtering on sense input is no longer needed. compensation is less than theoretical value. Figure 3. Icable Where ΔV has a negative temperature coefficient, K is a constant. compensation improves output precision.
actual switching frequency can vary slightly cycle by cycle, providing the additional benefit of reducing EMI. Figure 4. QR Mode
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 13 -
PACKAGE INFORMATION
Dimension in SOP7 (Unit: mm) Symbol Min Max A - 1.75 A1 0.10 0.225 A2 1.30 1.50 A3 0.60 0.70 b 0.39 0.48 b1 0.38 0.43 c 0.21 0.26 c1 0.19 0.21 D 4.70 5.10 E 5.80 6.20 E1 3.70 4.10 e 1.27 BSC h 0.25 0.50 L 0.50 0.80 L1 1.05 BSC θ 0° 8°
AiT Semiconductor Inc. www.ait-ic.com AP8366 AC-DC PWM CONTROLLER LOW STANDBY-POWER QUASI-RESONANT PRIMARY-SIDE CONVERTER REV1.2 - SEP 2017 RELEASED, SEP 2018 UPDATED - - 14 - IMPORTANT NOTICE AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. AiT Semiconductor Inc. 's integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in l ife support applications, devices or systems or other critical applications. Use of AiT products in such applications is understood to be fully at the risk of the customer. As used herein may involve potential risks of de ath, personal injury, or server property, or environmental damage. In order to minimize risks associated with the customer's applications, the customer should provide adequate design and operating safeguards. AiT Semiconductor Inc . assumes to no liability to customer product design or appl ication support. AiT warrants the performance of its products of the specifications applicable at the time of sale.