AP8836

AP8836 AITSEMI | Alldatasheet

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AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 1 - DESCRIPTION FEATURES The AP8836 consists of a Low Standby -Power Quasi-Resonant (QR) Primary -Side controller and a 650V avalanche -rugged smart power VDMOSFET, specifically designed for a high performance AC/DC charger or adaptor with minimal external components. AP8836 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 AP8836 can achieve less than 50mW standby power consumption (264VAC). 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 pow er setting can be adjusted externally by the sense resistor at CS pin. AP8836 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 AP8836 is available in DIP8 and SOP8 packages.

ORDERING INFORMATION

SPQ: 50pcs/Tube AP8836P8U AP8836P8VU SOP8 SPQ: 4,000pcs/Reel AP8836M8R AP8836M8VR Note V: Halogen free Package R: Tape & Reel U: Tube AiT provides all RoHS products  Internal 650 V avalanche -rugged smart power VDMOSFET  Internal HV Start -up Circuit, Standby power consumption < 50mW at 264VAC  Multi-mode and Quasi-Resonant technique  ±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)  Available in DIP8 and SOP8 Packages APPLICATION  Switch AC/DC Adaptor  Battery Charger TYPICAL APPLICATION

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 2 - PIN DESCRIPTION Top View Top View Pin # Symbol Function

1 GND Ground

2 VDD Power supply

The voltage feedback from auxiliary winding. Connected to resistor divider from auxiliary winding reflecting output voltage.

4 CS Current Sense Input

5,6,7,8 SW Avalanche-rugged power MOSFET Drain pin. The Drain pin is connected to the primary lead of the transformer. TYPICAL POWER Part number Package Adapter NOTE1 85-265 VAC AP8836 DIP8 18W AP8836 SOP8 15W NOTE1: Maximum output power is tested in an adapter at 45°C ambient temperature, with enough cooling conditions.

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 3 - ABSOLUTE MAXIMUM RATINGS Supply Voltage Pin VDD -0.3V ~ 40V High-Voltage Pin, SW -0.3V ~ 650V Pin FB, CS -0.3V ~ 5.5V Operating Junction Temperature -40℃ ~ 150℃ Storage Temperature Range -55℃ ~ 150℃ RθJC, Package Thermal Resistance DIP8 40°C/W RθJC, Package Thermal Resistance SOP8 80°C/W Lead Temperature (Soldering, 10secs) 260℃ HBM ESD Protection (ESDA/JEDEC JDS-001-2014) ±4.0kV Pulse Drain Current（tpulse=100us） 5A 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.

ELECTRICAL CHARACTERISTICS

TA =25°C, VDD = 21V, unless otherwise specified Parameter Symbol Conditions Min. Typ. Max. Unit Power section Break-Down Voltage BVDSS ISW = 250uA 650 700 - V Off-State Drain Current IOFF VSW = 500V - - 100 uA Drain-Source On State Resistance RDS(ON) ISW = 1A,TJ = 25℃ - 1.6 - Ω Start up Threshold VSW_START VDD=VDDon - 1V - 30 - V Supply Voltage Section Operating Voltage Range VDD 10 - 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 VDD_OVP 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 = 19.5V 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 AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 4 - 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 44 48 52 uA Minimum toff toffmin - 5 - us Maximum toff toffmax - 2.2 - ms Output under Voltage Protection Blanking Time tUVP fSW= 50kHz 20 - 32 ms Thermal Section Thermal Shutdown Temperature Threshold TSD 135 150 - °C Thermal Shutdown Hysteresis THYST - 30 - °C

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 5 - TYPICAL PERFORMANCE CHARACTERISTICS 1. BV vs. TJ 2. RDSON vs. TJ 3. VDDoff vs. TJ 4. VDDon vs. TJ 5. VDD_OVP vs. TJ 6. Icable vs. TJ 7. VREF_CV vs. TJ 8. VTH_OC vs. TJ

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 6 - TYPICAL CIRCUIT 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 AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 7 - BLOCK DIAGRAM

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 8 - DETAILED INFORMATION Functional Description The AP8836 is a high performance CC/CV primary -side controller. AP8836 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 adaptor 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 charges the external V DD capacitor, so that AP8836 starts up quickly. Whe n VDD 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 VDD keeps above VDDoff. After startup, the bias is supplied from the auxili ary 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 AP8836 captures the auxiliary flyback signal at FB pin through a resistor dividing-network. The pulse width of the auxiliary flyback signal determines the AP8836 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 x Nps (1) The output current is IO = p demag sense cs ps p demagsec_pk T T R VN2 T T x 2 I  (2) Because VCS is constant and Tp is equal to two times Tdemag, the output current Io is constant.

Figure 1. The current waveform of DCM mode controls the switching off time to regulate the output voltage, thus constant output voltage can be achieved. Ipeak and Loading for AP8836.

Figure 2. The Switching Frequency, Vipeak VS. LOAD MOSFET on-state so that the external RC filtering on sense input is no longer needed. compensation is less than theoretical value.

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 12 - Protection Control The AP8836 has several self -protection functions, such as Cycle -by-Cycle current limiting (OCP), Over-Voltage Protection, Over-Temperature Protection, Feedback Loop open Protection, Output short circu it Protection, CS resistor open/short circuit Protection and Under Voltage Lockout on V DD. All protections are self-recovered. OUTPUT FEATURES

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 13 -

PACKAGE INFORMATION

Dimension in DIP8 (Unit: mm) Symbol Min Max A 3.60 4.00 A1 0.51 - A2 3.00 3.40 A3 1.55 1.65 b 0.44 0.53 b1 0.43 0.48 B1 1.52BSC c 0.24 0.32 c1 0.23 0.27 D 9.05 9.45 E1 6.15 6.55 e 2.54BSC eA 7.62BSC eB 7.62 9.30 eC 0.00 0.84 L 3.00 -

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 14 - Dimension in SOP8 (Unit: mm) Symbol Min Max Symbol Min Max A 1.35 1.75 L 0.45 0.80 A1 0.10 0.25 L1 1.04REF A2 1.25 1.65 L2 0.25BSC A3 0.50 0.70 R 0.07 - b 0.38 0.51 R1 0.07 - b1 0.37 0.47 h 0.30 0.50 c 0.17 0.25 θ 0° 8° c1 0.17 0.23 θ1 15° 19° D 4.80 5.00 θ2 11° 15° E 5.80 6.20 θ3 15° 19° E1 3.80 4.00 θ4 11° 15° e 1.27BSC

AiT Semiconductor Inc. www.ait-ic.com AP8836 AC-DC PWM CONTROLLER HIGH PRECISION CC/CV PRIMARY-SIDE CONVERTER REV1.1 - DEC 2016 RELEASED, MAY 2019 UPDATED - - 15 - 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 life support applications, devices or syste ms 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 t o 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 application support. AiT warrants the performance of its products of the specifications applicable at the time of sale.