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BD63621MUV Scheda tecnica(PDF) 17 Page - Rohm |
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BD63621MUV Scheda tecnica(HTML) 17 Page - Rohm |
17 / 29 page 17/24 BD63621MUV TSZ02201-0P2P0B701290-1-2 © 2017 ROHM Co., Ltd. All rights reserved. 21.Dec.2020 Rev.002 www.rohm.com TSZ22111・15・001 Application Example Figure 8. Block diagram and applied circuit diagram 0.2Ω 0.2Ω Resistor for current detection Setting range is 0.1Ω to 0.3Ω. Refer to P.4 for detail. 39kΩ 1000pF Set the chopping frequency. Setting range is C:470pF to 3300pF R:10kΩ to 200kΩ Refer to P.5,7 for detail. Bypass capacitor. Setting range is 100uF to 470uF(electrolytic) 0.01uF to 0.1uF(multilayer ceramic etc.) Refer to P.4 for detail. Be sure to short VCC1 & VCC2. Resistor for current detection Setting range is 0.1Ω to 0.3Ω. Refer to P.4 for detail. 24 VCC1 Blank time PWM control Translator DAC TSD UVLO Regulator RESET 25 GND 26 CR 27 MTH 3 PS VREF 28 19 OUT1B 23 OUT1A 20 RNF1 12 VCC2 13 OUT2A 18 GND 17 OUT2B 16 RNF2 Mix decay control + - + - + - OCP OSC RNF1S 21 RNF2S 15 OVLO RNF1S RNF2S 0.1µF 100µF Set the output current. Input by resistor division. Refer to P.4 for detail. Set the current decay mode. ①SLOW DECAY ⇒Connect to GND. ②MIX DECAY ⇒Input by resistor division. Refer to P.5,9 for detail. Logic input terminal Refer to P.3,5 for detail. Power save terminal Refer to P.3 for detail. 11 TEST 4 SELECT DECAY Mode input terminal Refer to P.3,8 for detail. 1 7 MODE1 8 2 9 10 ENABLE 11 6 5 GND GND GND CW_CCW MODE0 CLK |
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