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LM46000A-Q1 bảng dữ liệu(PDF) 7 Page - Texas Instruments |
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LM46000A-Q1 bảng dữ liệu(HTML) 7 Page - Texas Instruments |
7 / 54 page 7 LM46000-Q1 www.ti.com SNVSAA1B – JULY 2015 – REVISED NOVEMBER 2017 Product Folder Links: LM46000-Q1 Submit Documentation Feedback Copyright © 2015–2017, Texas Instruments Incorporated (1) Ensured by design. 6.7 Switching Characteristics Limits apply over the recommended operating junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated. Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated, the following conditions apply: VIN = 24 V, VOUT = 3.3 V, FS = 500 kHz. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SW (SW PIN) tON-MIN (1) Minimum high side MOSFET ON- time 125 165 ns tOFF-MIN (1) Minimum high side MOSFET OFF- time 200 250 ns OSCILLATOR (SW PINS AND SYNC PIN) FOSC- DEFAULT Oscillator default frequency RT pin open circuit 445 500 570 kHz FADJ Minimum adjustable frequency With 1% resistors at RT pin 200 kHz Maximum adjustable frequency 2200 kHz Frequency adjust accuracy 10% VSYNC-HIGH Sync clock high level threshold 2 V VSYNC-LOW Sync clock low level threshold 0.4 V DSYNC-MAX Sync clock maximum duty cycle 90% DSYNC-MIN Sync clock minimum duty cycle 10% TSYNC-MIN Minimum sync clock ON- and OFF- time 80 ns |
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Mô tả tương tự - LM46000A-Q1 |
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