FSL126MR Fairchild Semiconductor, FSL126MR Datasheet
FSL126MR
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FSL126MR Summary of contents
Page 1
... FSL126MR offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL126MR reduces total component count, design size, and weight; while increasing efficiency, productivity, and system reliability. ...
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... Typical Application Diagram Internal Block Diagram -Tim tor © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 Figure 1. Typical Application ndom Fre que tor oft Good Q CC Figure 2. Internal Block Diagram Good Inte rna Driv www.fairchildsemi.com ...
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... Drain switching a maximum of 650V. Minimizing the length of the trace connecting these pins to the transformer decreases leakage inductance. © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 Figure 3. Pin Configuration ) via an internal switch during startup (see Figure 2). Once STR reaches 12V, the internal switch is opened. ...
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... JC to plastic interface for Θ thermo-couple mounted on soldering. JA 10. Θ junction-to-top of thermal characteristic under Θ JT couple is mounted in epoxy glue. © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 = 25°C, unless otherwise specified. J Parameter (4) (5) (6) (6) (7,8) (7,9) (7,10) test condition ...
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... Protection Voltage Feedback Blanking t OSP_FB Time (11) V AOCP Voltage AOCP TSD Shutdown Temperature Thermal (11) Shutdown HYS Hysteresis TSD t Leading-Edge Blanking Time LEB © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 Conditions 250µ 650V 10V 0V 0V 25V 1MHz GS DS ...
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... Operating Supply Current I OP2 (Control Part Only) I Startup Charging Current CH V Minimum V Supply Voltage STR STR Note: 11. Though guaranteed by design not 100% tested in production. © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 (Continued) Conditions (11 14V, V > BURH V = 14V, V < BURL ...
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... Stop Threshold Voltage (V 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 ‐40 ‐ Figure 8. Stop Threshold Voltage vs. Temperature © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 =25 OSC 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 75 100 120 140 ‐ ...
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... Burst Operating Supply Current (I 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 ‐40 ‐ Figure 12. Burst Operating Supply Current vs. Temperature © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 (Continued) =25 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 75 100 120 140 ‐ ...
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... EMI requirements. Figure 15. Frequency Fluctuation Waveform © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 Feedback Control FSL126MR employs current-mode control, as shown in Figure 16. An opto-coupler (such as the FOD817A) and pin, as illustrated shunt regulator (such as the KA431) are typically used CC to implement the feedback network ...
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... FB Figure 18. Overload Protection (OLP) © 2010 Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 Abnormal Over-Current Protection (AOCP) When the secondary rectifier diodes or the transformer pin are shorted, a steep current with extremely high di/dt can flow through the SenseFET during the LEB time ...
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... PWM comparator. An external resistance the current limit pin forms a parallel resistance with the 6kΩ when the internal diodes are biased by the main current source of 400µA. For example, FSL126MR has a typical SenseFET peak current limit (I adjusted inserting Rx between the I the ground. The value of the Rx can be estimated by the following equations: 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 FSL126MR • Rev. 1.0.0 9.83 9.00 6.67 6.096 3 ...
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... Fairchild Semiconductor Corporation FSL126MR • Rev. 1.0.0 13 www.fairchildsemi.com ...