FAN302HLMY

FAN302HLMY Datasheet

FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications

Part	Datasheet
FAN302HLMY	FAN302HLMY (pdf)

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FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications September 2011 FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications • mWSaver Technology Provides Industry’s Best- in-Class Standby Power - Achieve Under 10mW Far Below Energy Star’s 5-Star Level <30mW - Proprietary 500V High-Voltage JFET Startup Reduces Startup Resistor Loss - Low Operation Current in Burst Mode Maximum 350µA • 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 • VDD Over-Voltage Protection Auto-Restart • VS Over-Voltage Protection Latch Mode • VDD Under-Voltage Lockout UVLO • Gate Output Maximum Voltage Clamped at 15V • Fixed Over-Temperature Protection Latch Mode • Available in an 8-Lead SOIC Package This highly integrated PWM controller, FAN302HL, provides several features to enhance the performance of general flyback converters. The constant-currentcontrol, proprietary topology enables simplified circuit designs without secondary feedback circuitry for batterycharger applications. A proprietary Burst-Mode function with low operation current minimizes standby power consumption. The FAN302HL controller also provides several 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 VS OVP or internal OTP is triggered, the circuit 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 Maximum Typical Minimum Battery chargers for cellular phones, cordless phones, PDA, digital cameras, and power tools. Replaces linear transformers and RCC SMPS. Figure Typical Output V-I Characteristic Ordering Information FAN302HLMY Operating Temperature Range -40C to +105C Package Packing Method 8-Lead, Small Outline Package SOIC , JEDEC MS-012, .150-Inch Narrow Body Tape & Reel FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications Application Diagram Internal Block Diagram Figure Typical Application Figure Functional Block Diagram 2010 Fairchild Semiconductor Corporation FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications Marking Information 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.Top Mark Pin Configuration CS GATE VDD VS HV NC FB GND Figure Pin Assignments Pin Definitions Pin # 4 5 6 7 8 Name GATE VS GND FB NC HV Current Sense. This pin connects a current-sense resistor to detect the MOSFET current for Peak-Current-Mode control in CV regulation and provides the output-current regulation in CC regulation. PWM Signal Output. This pin uses the internal totem-pole output driver to drive the power MOSFET. It is internally clamped below 15V. Power Supply. IC operating current and MOSFET driving current are supplied using this pin. This pin is connected to an external VDD capacitor. The threshold voltages for startup and turnoff are 16V and 5V, respectively. Voltage Sense. This pin detects the output voltage information and discharge time based on voltage of auxiliary winding. Ground Feedback. The FB pin provides feedback information to the internal PWM comparator. This feedback is used to control the duty cycle in CV regulation. No Connect High Voltage. This pin connects to bulk capacitor for high-voltage startup. 2010 Fairchild Semiconductor Corporation FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

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FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications

September 2011

FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications
• mWSaver Technology Provides Industry’s Best-
in-Class Standby Power
- Achieve Under 10mW Far Below Energy Star’s 5-Star Level <30mW
- Proprietary 500V High-Voltage JFET Startup Reduces Startup Resistor Loss
- Low Operation Current in Burst Mode Maximum 350µA
• 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
• VDD Over-Voltage Protection Auto-Restart
• VS Over-Voltage Protection Latch Mode
• VDD Under-Voltage Lockout UVLO
• Gate Output Maximum Voltage Clamped at 15V
• Fixed Over-Temperature Protection Latch Mode
• Available in an 8-Lead SOIC Package

This highly integrated PWM controller, FAN302HL, provides several features to enhance the performance of general flyback converters. The constant-currentcontrol, proprietary topology enables simplified circuit designs without secondary feedback circuitry for batterycharger applications.

A proprietary Burst-Mode function with low operation current minimizes standby power consumption.

The FAN302HL controller also provides several 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 VS OVP or internal OTP is triggered, the circuit 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

Maximum Typical Minimum

Battery chargers for cellular phones, cordless phones, PDA, digital cameras, and power tools. Replaces linear transformers and RCC SMPS.

Figure Typical Output V-I Characteristic
Ordering Information

FAN302HLMY

Operating Temperature Range
-40C to +105C

Package

Packing Method
8-Lead, Small Outline Package SOIC , JEDEC MS-012, .150-Inch Narrow Body

Tape & Reel

FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications

Application Diagram

Internal Block Diagram

Figure Typical Application

Figure Functional Block Diagram
2010 Fairchild Semiconductor Corporation

FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications

Marking Information

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.Top Mark

Pin Configuration

CS GATE

VDD VS

HV NC FB GND

Figure Pin Assignments

Pin Definitions

Pin #
4 5 6 7 8

Name

GATE

VS GND FB NC HV

Current Sense. This pin connects a current-sense resistor to detect the MOSFET current for Peak-Current-Mode control in CV regulation and provides the output-current regulation in CC regulation.

PWM Signal Output. This pin uses the internal totem-pole output driver to drive the power MOSFET. It is internally clamped below 15V.

Power Supply. IC operating current and MOSFET driving current are supplied using this pin. This pin is connected to an external VDD capacitor. The threshold voltages for startup and turnoff are 16V and 5V, respectively.

Voltage Sense. This pin detects the output voltage information and discharge time based on voltage of auxiliary winding.

Ground

Feedback. The FB pin provides feedback information to the internal PWM comparator. This feedback is used to control the duty cycle in CV regulation.

No Connect

High Voltage. This pin connects to bulk capacitor for high-voltage startup.
2010 Fairchild Semiconductor Corporation

FAN302HL mWSaver PWM Controller for Low Standby Power Battery-Charger Applications

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FAN302HLMY Datasheet file may be downloaded here without warranties.

Datasheet ID: FAN302HLMY 513888