Datenblatt-Suchmaschine für elektronische Bauteile |
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BM63374S-VA Datenblatt(PDF) 10 Page - Rohm |
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BM63374S-VA Datenblatt(HTML) 10 Page - Rohm |
10 / 24 page 10/21 BM63374S-VA BM63374S-VC TSQ50501-BM63374S-2 © 2020 ROHM Co., Ltd. All rights reserved. 30.Jul.2020 Rev.001 www.rohm.com TSZ22111・15・001 2) Control Supply (LVCC) Under Voltage Locked Out (UVLO) b1. Control supply(LVCC) voltage exceeds UVLO release level (VCCUVR), but IGBT turns on by the next ON signal (LIN=L→ H).IGBT of each phase can return to normal state by inputting ON signal to each phase. b2. Normal operation: IGBT ON and outputs current IC. b3. LVCC drops to UVLO trip level (VCCUVT). b4. All low side IGBTs turn off in spite of control input condition. b5. FO outputs for tFO=minimum 90µs, but output is extended while LVCC is below VCCUVR. b6. LVCC reaches VCCUVR. b7. Even if LVCC reaches VCCUVR during LIN=H, IGBT s don’t turn on until inputting the next ON signal (LIN=L→H). b8. Normal operation: IGBT ON and outputs current IC. 3) Control supply (VBS) Under Voltage Locked Out (UVLO) c1. Control supply(VBS) voltage exceeds UVLO release level (VBSUVR), but IGBT turns on by the next ON signal (HIN=L→ H). c2. Normal operation: IGBT ON and outputs current IC. c3. VBS drops to UVLO trip level (VBSUVT). c4. Only IGBT of the corresponding phase turns off in spite of control input signal, there is no FO signal output. c5. VBS reaches VBSUVR. c6. Even if VBS reaches VBSUVR during HIN=H, IGBT s don’t turn on until inputting the next ON signal (HIN=L→H). c7. Normal operation: IGBT ON and outputs current IC. LIN RESET RESET b1 UVLO VCCUVT Ic FO SET VCCUVR b3 b2 b4 b5 b6 b7 b8 LVCC HIN RESET RESET c1 UVLO VBSUVT Ic FO SET VBSUVR c3 c2 c4 c5 c6 c7 VBS FO=H Figure 13. VBS UVLO Timing Chart Figure 12. LVCC UVLO Timing Chart |
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