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1 LWG2 Power Sequence Introduce Prepared By: Withy He.

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Presentation on theme: "1 LWG2 Power Sequence Introduce Prepared By: Withy He."— Presentation transcript:

1 1 LWG2 Power Sequence Introduce Prepared By: Withy He

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3 3 DC-DC Source

4 4 Charge Circuit CONTROL FEEDBACK ACIN ACOK MODE PKPRES# MAX8725 VCTL ICTL SW BATA_IN# KBC CHG_V_PWM CHG_I_PWN DCBATOUT BT+ DCBATOUT DHI DLO CSIP CSIN AD+ Charger Circuit

5 5 1.Adapter In: 2.Power On: KBC RE144B EC_PWRBTN# S5_EN 5V_S5 TPS D3V_S5 RSMRST#_TO_KBC PWRBTN#_ICH SB_RSMRST# ICH Adapter In AD+ DCBATOUT3D3V_AUX_S55V_AUX_S5 LP2951 G913 MOS KBC RE144B RTC_AUX_S5 BT+ MOS ICH H8_RESET# Power On/Reset Step

6 6 4.S0: ICH PM_SLP_S5# TPS51124 TPS D8V_S3 DDR_VREF_S3 3.S3: ICH TPS51100 PM_SLP_S3# MOS 3D3V_S0 5V_S0 MOS APL5912_KAC 1D8V_S0 1D5V_S0 APL5332KAC 2D5V_S0 DDR_VREF_S0 TPS D05V_S0

7 7 5.VCC_CORE_S0: TPS51120 POK APL5912_KAC POK TPS51124 POK CPUCORE_ON ISL6262 VCC_CORE_S0 6.System Reset: CLK_EN# ISL6262 PGOOD VGATE_PWRGD CPUPWRGD VRMPWRGD ICH PWROK PLTRST1# PCIRST# RESET# G792 HCPURST# MCH Calistoga PWROK RSTIN# PLT_RST 1 # PCIRST1# GPU DEBUG G.F. LAN HDD/CDROM KBC TI PCI 7412 Power SW H_PWRGD RESET# CPU Yonah PWRGOOD H_CPURST# CLK GEN VTT_PWRGD# PWROK

8 8 Power On/Reset Sequence

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