HSMC3842 Hi-Sincerity Mocroelectronics, HSMC3842 Datasheet
HSMC3842
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HSMC3842 Summary of contents
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... H3842P / HSMC3842 HIGH PERFORMANCE CURRENT MODE CONTROLERS Description The H3842P/HSMC3842 are high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and converter applications offering the designer a cost-effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control ...
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HI-SINCERITY MICROELECTRONICS CORP. Pin Connection (Top View) DIP-8P Function Pin1: Compensation Pin2: Voltage Feedback Pin3: Current Sense Pin4: RT/ Pin5: Ground Pin6: Output Pin7: Vcc Pin8: Vref Thermal Data Symbol Rth j-amb ...
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HI-SINCERITY MICROELECTRONICS CORP. Parameter Error Amplifier Section Voltage Feedback Input Input Bias Current Open Loop Voltage Gain Unity Gain Bandwidth Power Supply Rejection Ratio Output Current Output Voltage Swing High State Low State Current Sense Section Current Sense Input Voltage ...
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HI-SINCERITY MICROELECTRONICS CORP. Characteristics Curve Oscillator Frequency & Timing Resistance 10000K 1000K CT=1.0nF CT=2.2nF CT=4.7nF 100K 10K 1K 100 1000 RT(Ω) Oscillator Discharge Current & Temperate 9 8.5 8 7.5 7 -50 - Current ...
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HI-SINCERITY MICROELECTRONICS CORP. Reference Short Circuit Current &Temperature 110 100 -50 - Output Saturation Voltage & Load Current 0 Source Saturation (Load to Ground Ta=25 C ...
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HI-SINCERITY MICROELECTRONICS CORP. Application Information Open Loop Test Circuit 4.7KΩ HPN2222A 100KΩ Error Amp. Adjust 1KΩ I SENSE Adjust 4.7KΩ High peak currents associated with capacitive loads necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to ...
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HI-SINCERITY MICROELECTRONICS CORP. Current Sense Circuit Peak current (Is) is determined by the formula Is(max.) 1V/Rs A small RC filter may be required to suppress switch transients. Slope Compensation Techniques Is R SLOPE R1 Rs Isolated ...
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HI-SINCERITY MICROELECTRONICS CORP. Latched Shutdown 2N3905 Error Amplifier Compensation From Vo 2. From Vo 2. External Clock Synchronization Vref RT CT External Sync Input 0.01uF 47Ω ...
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HI-SINCERITY MICROELECTRONICS CORP. External Duty Cycle Clamp and Multi Unit Synchronization Vref 5KΩ 5KΩ 2 5KΩ f=1.44/((RA+2RB)C), Dmax=RB/(RA+2RB) Soft-Start Circuit 1MΩ C Soft-Start and Error Amplifier Output Duty Cycle Clamp ...
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HI-SINCERITY MICROELECTRONICS CORP. DIP-8P Dimension Inches DIM Min. Max. A 0.2480 0.2520 B 0.3630 0.3670 C - *0.0600 D - *0.0500 E - *0.0390 F 0.1280 ...