ncp5215 ON Semiconductor, ncp5215 Datasheet - Page 17

• Manufacturer Part Number: ncp5215
• Description: Dual Synchronous Buck Controller For Notebook
• Manufacturer: ON Semiconductor

Vo Discharge
Mode
or ENBL = LOW
OCP
or VIN < 3.5V
VCC < 4.0V
& no OV
Figure 34. State Diagram per Channel
no
OC
Normal Operation
& ENBL= HIGH ?
VCC > 4.25V ?
& VIN > 4.0V ?
Soft Start and
Vo Discharge
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Power Up
Vo < 0.3V
Latch Off
TG & BG
Mode
NCP5215
yes
yes
17
UV
OV
VCC or VIN or ENBL
TG Latch Off
BG Latch On
UVP
OV
OVP
Re-apply