FAN302HL Fairchild Semiconductor, FAN302HL Datasheet

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FAN302HL

Manufacturer Part Number
FAN302HL
Description
This highly integrated PWM controller, FAN302HL, provides several features to enhance the performance of general flyback converters
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2010 Fairchild Semiconductor Corporation
FAN302HL • Rev. 1.0.1
FAN302HL
mWSaver™ PWM Controller for Low Standby Power
Battery-Charger Applications
Features
Applications
Battery chargers for cellular phones, cordless phones,
PDA, digital cameras, and power tools. Replaces linear
transformers and RCC SMPS.
Ordering Information
Part Number
FAN302HLMY
mWSaver™ Technology Provides Industry’s Best-
in-Class Standby Power
- Achieve Under 10mW; Far Below Energy Star’s
- Proprietary 500V High-Voltage JFET Startup
- Low Operation Current in Burst Mode:
Constant-Current (CC) Control without Secondary-
Feedback Circuitry
Fixed PWM Frequency at 85kHz with Frequency
Hopping to Solve EMI Problem
Low Operating Current: 3.5mA
Peak-Current-Mode Control in CV Regulation
Cycle-by-Cycle Current Limiting
V
V
V
Gate Output Maximum Voltage Clamped at 15V
Fixed Over-Temperature Protection (Latch Mode)
Available in an 8-Lead SOIC Package
DD
S
DD
5-Star Level (<30mW)
Reduces Startup Resistor Loss
Maximum 350µA
Over-Voltage Protection (Latch Mode)
Over-Voltage Protection (Auto-Restart)
Under-Voltage Lockout (UVLO)
Temperature Range
-40C to +105C
Operating
JEDEC MS-012, .150-Inch Narrow Body
8-Lead, Small Outline Package (SOIC),
Description
This highly integrated PWM controller, FAN302HL,
provides several features to enhance the performance
of general flyback converters. The constant-current-
control, proprietary topology enables simplified circuit
designs without secondary feedback circuitry for battery-
charger applications.
A proprietary Burst-Mode function with low operation
current minimizes standby power consumption.
The
protections. Cycle-by-cycle current limiting ensures the
fixed peak current limit level, even if a short circuit
occurs. The gate output is clamped at 15V to protect the
power MOS from high gate-source voltage conditions. If
either V
enters Latch Mode until AC power is removed.
Using FAN302HL, a charger can be implemented with
few external components and minimized cost, compared
to a conventional design or a linear transformer. A
typical output CV/CC characteristic is shown in Figure 1.
5%
V
Figure 1. Typical Output V-I Characteristic
FAN302HL
Package
O
S
OVP or internal OTP is triggered, the circuit
controller
also
10%
Packing Method
provides
Tape & Reel
September 2011
www.fairchildsemi.com
Io
Maximum
Typical
Minimum
several

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FAN302HL Summary of contents

Page 1

... MOS from high gate-source voltage conditions. If either V OVP or internal OTP is triggered, the circuit S enters Latch Mode until AC power is removed. Using FAN302HL, a charger can be implemented with few external components and minimized cost, compared to a conventional design or a linear transformer. A typical output CV/CC characteristic is shown in Figure 1. V ...

Page 2

... Application Diagram Internal Block Diagram © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 Figure 2. Typical Application Figure 3. Functional Block Diagram 2 www.fairchildsemi.com ...

Page 3

... CV regulation Connect 8 HV High Voltage. This pin connects to bulk capacitor for high-voltage startup. © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 F- Fairchild Logo Z: Assembly Plant Code X: Year Code Y: Week Code TT: Die Run Code T: M=SOP P: Y= Green Package M: Manufacture Flow Code Figure 4 ...

Page 4

... All voltage values, except differential voltages, are given with respect to GND pin. 2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. 3. ESD ratings including HV pin: HBM=400V, CDM=750V. © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 Parameter (1,2) =25C) A Human Body Model, JEDEC:JESD22_A114 ...

Page 5

... Enter Zero Duty Cycle of FB Voltage FB-L V Leave Zero Duty Cycle of FB Voltage FB-H Over-Temperature Protection Section Threshold Temperature for Over- T OTP Temperature Protection © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 Conditions V =90V, V =0V, Controller Off AC DD With Auxiliary Supply, V =500V =15V, Controller On ...

Page 6

... Output Voltage Low GATE-L V Output Voltage High GATE-H V Output Voltage High GATE-H t Rising Time r t Falling Time f V GATE- Output Clamp Voltage CLAMP © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 (Continued) Parameter V V 2KHz /(V f=85kHz Maximum Duty Cycle V V ...

Page 7

... Temperature (ºC) Figure 8. Operating Current ( -40 -30 - Temperature (ºC) Figure 10. CC Regulation Minimum Frequency (f ) vs. Temperature OSC-CCM © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 5.04 5.01 4.98 4.95 4.92 4.89 4. 100 125 -40 ) Figure 7. V DD-ON 0.23 0.22 0.21 0.20 0.19 0.18 0. 100 125 -40 ) vs. Temperature Figure 9 ...

Page 8

... Temperature (ºC) Figure 14. Reference Voltage vs. Temperature 2.20 2.18 2.16 2.14 2.12 2.10 2.08 -40 -30 - Temperature (ºC) Figure 16. Starting Voltage of Frequency Decreasing of CC Regulation (V SN-CC © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 2.95 2.90 2.85 2.80 2.75 2.70 2. 100 125 -40 Figure 13. V 2.50 2.48 2.46 2.44 2.42 2.40 2. 100 125 -40 ) Figure 15.Variation Voltage on CS Pin for Constant- ...

Page 9

... Temperature (ºC) Figure 20. Minimum On Time (t 67.6 67.4 67.2 67.0 66.8 66.6 66.4 -40 -30 - Temperature (ºC) Figure 22. Maximum Duty Cycle (DCY vs. Temperature © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 0.45 0.40 0.35 0.30 0.25 0.20 0. 100 125 -40 ) Figure 19. Threshold Voltage for Current Limit at STH Power Mode (V 480 470 460 ...

Page 10

... Operation Description Constant-Voltage Regulation Operation FAN302HL is the high-frequency and ultra-low standby power IC with Constant Voltage (CV) / Constant Current (CC) regulation. When FAN302HL operates in CV regulation, the feedback voltage (V ) works as output load and FB modulates the PWM duty, as shown in Figure 24, causing fixed switching frequency (85kHz). Once the ...

Page 11

... Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 High-Voltage Startup Figure 29 shows the high-voltage (HV) startup circuit for FAN302HL applications. The HV pin is connected to the line input or bulk capacitor through a resistor. During startup, the internal startup circuit is enabled and the line input supplies the current, I ...

Page 12

... Gate Output The FAN302HL BiCMOS output stage is a fast totem- pole gate driver. Cross conduction has been avoided to minimize heat dissipation, increase efficiency, and enhance reliability. The output driver is clamped by an internal Zener diode to protect the power MOSFET transistors against over-voltage gate signals ...

Page 13

... Under Voltage Lockout (UVLO) The turn-on and turn-off thresholds are fixed internally at 16V and 5V, respectively. During startup, the hold-up capacitor must be charged to 16V through the startup resistor to enable the FAN302HL. The hold-up capacitor S continues to supply V to exceed 2.8V, after a from the auxiliary winding of the main transformer. V must not drop below 5V during this startup process ...

Page 14

... High Efficiency (Avg. >71%), Meeting Energy Star V2.0 Standard (Avg. 68.17%)  Ultra-Low Standby Power: Under 10mW at 230V  Output Regulation (CV: ±5%, CC: ±15%) Figure 35. Measured Efficiency and Output Regulation © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 Input Voltage Range FAN302HL 90~265V (Pin=6.3mW for 115V AC Figure 36.Schematic of Typical Application Circuit ...

Page 15

... Table 1. Transformer Turns Specifications Terminal NO Start Pin Fly Primary-Side Inductance Primary-Side Effective Leakage © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 (Continued) BOBBIN Figure 37.Transformer Wire End Pin 5 2UEW 0.1*1 Fly- TEX-E 0.45*1 2 2UEW 0.18*1 CORE ROUNDING TAPE CORE 2UEW 0.18*1 Pin Specifications 4- ...

Page 16

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 5.00 4.80 A 3.81 ...

Page 17

... Fairchild Semiconductor Corporation FAN302HL • Rev. 1.0.1 17 www.fairchildsemi.com ...

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