FAN103_10 FAIRCHILD [Fairchild Semiconductor], FAN103_10 Datasheet
FAN103_10
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FAN103_10 Summary of contents
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FAN103 Primary-Side-Regulation PWM Controller (PWM-PSR) Features Low Standby Power Under 30mW High Voltage Startup Fewest External Component Counts Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry Green-Mode Function: Linearly-Decreasing PWM Frequency Fixed PWM Frequency at 50kHz with Frequency Hopping ...
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Application Diagram Input Internal Block Diagram © 2010 Fairchild Semiconductor Corporation FAN103 • Rev. 1.0 sn2 sn1 D ...
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Marking Information Pin Configuration Pin Definitions Pin # Name Description Current Sense. This pin connects a current sense resistor, to detect the MOSFET current for 1 CS peak-current-mode control in CV mode, and provides the output-current regulation in CC mode. ...
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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 ...
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Electrical Characteristics Unless otherwise specified Symbol Parameter V Section DD V Continuously Operating Voltage OP V Turn-On Threshold Voltage DD-ON V Turn-Off Threshold Voltage DD-OFF I Operating Current DD-OP I Green-Mode Operating Supply Current DD-GREEN V V Over-Voltage ...
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Electrical Characteristics Unless otherwise specified Symbol Parameter Current-Error-Amplifier Section V Reference Voltage IR Cable Compensation Section V COMR Pin for Cable Compensation COMR Gate Section DCY Maximum Duty Cycle MAX V Output Voltage Low OL V Output Voltage ...
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Typical Performance Characteristics 17 16.6 16.2 15.8 15.4 15 -40 -30 - Temperature (ºC) Figure 6. Turn-On Threshold Voltage (V vs. Temperature 5 4.2 3.4 2.6 1.8 1 -40 -30 - Temperature (ºC) Figure 8. Operating ...
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Typical Performance Characteristics 450 420 390 360 330 300 -40 -30 - Temperature (ºC) Figure 12. Minimum Frequency at No Load (f ) vs. Temperature OSC-N-MIN 3 2.5 2 1.5 1 0.5 0 -40 -30 - ...
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Typical Performance Characteristics Figure 19. Output Clamp Voltage (V Figure 20. Variation Test Voltage on COMR Pin for Cable Compensation (V © 2010 Fairchild Semiconductor Corporation FAN103 • Rev. 1.0.3 12 11.2 10.4 9.6 8.8 8 -40 -30 -15 0 ...
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Functional Description Figure 21 shows the basic circuit diagram of a primary- side regulated flyback converter with typical waveforms shown in Figure 22. Generally, conduction mode (DCM) operation is preferred for primary-side regulation since it allows better output regulation. The ...
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Cable Voltage Drop Compensation When it comes to cellular phone charger applications, the battery is located at the end of cable, which causes, typically, several percentage of voltage drop on the actual battery voltage. FAN103 has a built-in cable voltage ...
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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 FAN103. The hold-up capacitor continues to supply ...
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Typical Application Circuit (Primary-Side-Regulated Flyback Charger) Application Fairchild Devices Cell Phone Charger FAN103 Features High efficiency (>68.17% at Full Load) Meeting EPS 2.0 Regulation with Enough Margin Low standby (Pin <30mW at No Load Condition) Tight output regulation (CV: ±5%, ...
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Typical Application Circuit Transformer Specification Core: EE16 Bobbin: EE16 Notes: 4. When W4R’s winding is reversed winding, it must wind one layer. 5. When W2 is winding, put 1 layer tape after wind first layer. TERMINAL ...
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Physical Dimensions 8 6.20 5.80 1 PIN ONE INDICATOR (0.33) 0.25 0.10 1.75 MAX R0.10 R0.10 8° 0° 0.90 0.406 DETAIL A Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner ...
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Fairchild Semiconductor Corporation FAN103 • Rev. 1.0.3 16 www.fairchildsemi.com ...