RT8167A Datasheet, PDF (23/40 Pages) Richtek Technology Corporation – Dual Single-Phase PWM Controller for CPU Core/GFX Power Supply

CORE VR Thermal Monitoring
1.9
TSEN
(V/Div)
1.7
VRHOT
(500mV/Div)
TSEN Sweep from 1.7V to 1.9V
Time (10ms/Div)
GFX VR Power On from EN
RT8167A
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
-50
CORE VR V_REF vs. Temperature
-25
0
25 50 75 100 125
Temperature (°C)
GFX VR Power Off from EN
VGFX
(500mV/Div)
EN
(2V/Div)
VRA_READY
(2V/Div)
UGATEA
(20V/Div)
VGFX
(1V/Div)
ILOAD
(5A/Div)
VRA_READY
(1V/Div)
UGATEA
(20V/Div)
Boot VID = 1V
Time (100μs/Div)
VGFX
(500mV/Div)
EN
(2V/Div)
VRA_READY
(2V/Div)
UGATEA
(20V/Div)
GFX VR OCP
Time (100μs/Div)
VGFX
(1V/Div)
VRA_READY
(1V/Div)
LGATEA
(10V/Div)
UGATEA
(20V/Div)
Boot VID = 1V
Time (100μs/Div)
GFX VR OVP and NVP
Time (40μs/Div)
VID = 1.1V
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8167A-00 January 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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