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K_S NOTE Power Study

K_S NOTE Power Study. NDK100/ PE Jimmy. 1. (1) DOCK_PWR19_F&VREGIN19& VCC3SW Power generate process with adapter. U12. CV19. Dock_PWR19_F. F10. Adapter In. F14. VREGIN19. VCC3SW. Input. output. U74. VCC3SW. VREGIN19. 因此只要 power VREGIN19 supply to U74 , 無須控制信號 U74 產生 VCC3SW.

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K_S NOTE Power Study

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  1. K_S NOTE Power Study NDK100/ PE Jimmy

  2. 1. (1) DOCK_PWR19_F&VREGIN19& VCC3SW Power generate process with adapter U12 CV19 Dock_PWR19_F F10 Adapter In F14 VREGIN19

  3. VCC3SW Input output U74 VCC3SW VREGIN19 因此只要power VREGIN19 supply to U74 , 無須控制信號U74產生VCC3SW

  4. VINT19 U13 CV19 VINT19 When DCIN_DRV=H, 打開 U13 and generate VINT19 DOCK_PWR19_F &VREGIN19& VCC3SW Power Sequence

  5. 1. (2) VREGIN19& VINT19 Power generate process with battery U41/U45 U48 BAT-PWR-17 VINT19 Battery insert F8 M-BAT-PWR F12 VREGIN19

  6. 2.Power on Enable signal generate VINT19 DOCK_PWR19 when adapter insert and U64 detect AC power OK , then generate EXTPWR.

  7. EXTPWR_PMH generate process and Power Sequence EXTPWR 信號 be sent to Q50 產生EXTPWR_PMH . Of course , system need Power VL5 來打開Q50 . VL5 generate process as next page:

  8. VL5 R189 U58 MAX1977_LOD5 Vl5 VINT19 When U58 detect VINT19 OK , 產生 MAX1977_LCDO5 , 再通過R189產生VL5

  9. M1_ON & M2_ON&AUX_ON EXTPWR_PMH Control Signal be sent to U72 , 然后產生Control Signal M1_ON/M2_ON/AUX_ON M1_ON U72 EXTPWR_PMH M2_ON PWH7 AUXON

  10. M1_ON & M2_ON&AUX_ON Sequence

  11. PWH Control Signal Sequence 這里順便了解一下PWH Control Signal Sequence • System detect EXTPWR OK then generate M_ON & AUX_ON • System detect PWRSTWITCH OK then generate A_ON &B_ON , • 也就是說﹕ • System generate M_ON & AUX_ON before pressing power button • System generate A_ON & B_ON after pressing power button

  12. VCC3M_ON & VCC5M_ON & VCC1R5M_ON & VCC1R2AUX_ON & VCC3AUX_ON

  13. VCC3M & VCC5M Output VCC3M Output VCC5M Enable Signal : VCC5M_ON VINT19 U72 Max1977 VCC3M&VCC5M VCC5M_ON

  14. VCC3M & VCC5M Sequence

  15. MPWRG VCC5M VCC3M When U74 detect VCC3M&VCC5M all OK , then it send MPWRG VCC3M&VCC5M U74 MPWRG VREGIN19 BD4175KVT

  16. MPWRG Sequence

  17. MPWRG Signal generate high signal when the following condition are satisfied. (1) VCC3M_ON& VCC5M_ON High (2) VCC5M Voltage SPEC: 4.311V~4.461V VCC3M Voltage SPEC : 2.793V~2.943V shut down when the following condition are satisfied (3) VCC5M < 4.311V or VCC5M > 4.461V , M_PGS shut down (4) VCC3M> 2.943V or VCC3M< 2.793V , M_PGS shut t down 5M_ON & 3M_ON AND M_PGS VCC3M&VCC5M

  18. VCC1R5M Power Output Control signal VCC5M&VINT19 U57 Max1540 VCC1R5M VCC1R5M_ON

  19. VCC1R5M Sequence

  20. VCC1R2AUX VCC1R2AUX VCC1R5M VCC1R2AUX U35

  21. VCC1R2AUX Sequence

  22. VCC2R5M U30 VCC3M VCC2R5M

  23. VCC2R5AUX & VCC3AUX VCC2R5M Q46 VCC2R5AUX VCC3AUX_ON VREGIN19 U74 VCC3AUX_DRV VCC3AUX Q49 VCC3M

  24. VCC2R5AUX & VCC3AUX Sequence

  25. Summary 以上介紹的Power 是在 Adapter insert system but do not power on 產生的 , 下面介紹Power on 后系統的上電情況.

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