FSEZ1307 Fairchild Semiconductor, FSEZ1307 Datasheet
FSEZ1307
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FSEZ1307 Summary of contents
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... PWM frequency under light-load conditions. Green mode assists the power supply in meeting power conservation requirements. By using the FSEZ1307, a charger can be implemented with few external components and minimized cost. A typical output CV/CC characteristic envelope is shown in Figure 1. ...
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... Application Diagram Input Internal Block Diagram © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0 sn2 sn1 VDD VDD 5 DRAIN COMR 3 GND Figure 2. Typical Application Figure 3 ...
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... High Voltage. This pin connects to a bulk capacitor for high-voltage startup. 8 DRAIN Driver Output. Power MOSFET drain. This pin is the high-voltage power MOSFET drain. © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 F: Fairchild Logo Z: Plant Code X: 1-Digit Year Code Y: 1-Digit Week Code ...
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... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 Parameter (1,2) T =25° =100°C A ＜ ...
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... Green-Mode Starting Voltage on EA_V N V Green-Mode Ending Voltage on EA_V G Current-Error-Amplifier Section V Reference Voltage IR Cable Compensation Section V COMR Pin for Cable Compensation COMR © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 =15V and T =25℃. A Parameter OVP DD Center Frequency Frequency Hopping Range Deviation DD COMV 5 Conditions Min ...
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... These parameters, although guaranteed, are not 100% tested in production. 4. Pulse test: pulsewidth ≦ 300µs, duty cycle ≦ 2%. 5. When the Over-temperature protection is activated, the power system enter latch mode and output is disabled. © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 (Continued) =15V and T =25℃. A Parameter ...
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... Turn-On Threshold Voltage (V vs. Temperature 4 3.5 3 2.5 2 1.5 1 -40 -30 - Temperature (ºC) Figure 8. Operating Current (I Temperature 2.53 2.52 2.51 2.5 2.49 2.48 2.47 -40 -30 - Temperature (ºC) Figure 10. Reference Voltage (V © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 5.5 5.3 5.1 4.9 4.7 4 100 125 -40 ) Figure 7. DD- 100 125 -40 ) vs. Figure 9. DD-OP 1.1 1 ...
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... Figure 14. Supply Current Drawn from HV Pin (I vs. Temperature 2.6 2.55 2.5 2.45 2.4 2.35 -40 -30 - Temperature (ºC) Figure 16. Green-Mode Starting Voltage on EA_V (V ) vs. Temperature N © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0 100 125 -40 Figure 13. Minimum Frequency at CCM (f 1000 950 900 850 800 ...
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... Figure 20. Threshold Voltage for Current Limit (V vs. Temperature 0.78 0.77 0.76 0.75 0.74 0.73 0.72 -40 -30 - Temperature (ºC) Figure 22. Variation Test Voltage on COMR Pin for Cable Compensation (V COMR © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 2 1.7 1.4 1.1 0.8 0 100 125 -40 ) vs. Temperature Figure 19. Adaptive Bias Voltage Dominated ...
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... Among the two error voltages, V smaller one determines the duty cycle. Therefore, during constant voltage regulation mode, V © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 duty cycle while V constant current regulation mode, V discontinuous duty cycle while V ), input voltage (V ...
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... As load increases, the voltage drop across the cable is compensated by increasing the reference voltage of the voltage regulation error amplifier. Operating Current The FSEZ1307 operating current is as small as 2.5mA, which results in higher efficiency and reduces the V hold-up capacitance requirement. Once FSEZ1307 enters “deep” green mode, the operating current is reduced to 0 ...
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... Gate Output The FSEZ1307 output stage is a fast totem-pole gate DD driver. Cross conduction has been avoided to minimize heat dissipation, increase efficiency, and enhance reliability. The output driver is clamped by an internal 15V Zener diode to protect the power MOSFET transistors against undesired over-voltage gate signals ...
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... Cell Phone Charger FSEZ1307 Features High efficiency (>65.5% at full load) meeting EPS 2.0 regulation with enough margin Low standby (Pin<30mW at no-load condition) Figure 30. Measured Efficiency © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 Input Voltage Range 90~265V AC Figure 32. Schematic of Typical Application Circuit 13 Output Output DC cable 5V/0 ...
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... When W2 is winding, it must wind three layers and put one layer of tape after winding the first layer. TERMINAL Primary-Side Inductance Primary-Side Effective Leakage © 2010 Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 (Continued) Figure 33. Transformer Specification WIRE t s 2UEW 0.23 2UEW 0.17 COPPER SHIELD 1.2 TEX-E 0.55*1 9 CORE ROUNDING TAPE Pin Specification 1－ ...
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... 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 FSEZ1307 • Rev. 1.0 4.00 3 ...
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... Fairchild Semiconductor Corporation FSEZ1307 • Rev. 1.0.2 16 www.fairchildsemi.com ...