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Part Name
Description
RT8167B View Datasheet(PDF) - Richtek Technology
Part Name
Description
Manufacturer
RT8167B
Dual Single-Phase PWM Controller for CPU and GPU Core Power Supply
Richtek Technology
RT8167B Datasheet PDF : 38 Pages
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RT8167B
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
1.006
CORE VR V
REF
vs. Temperature
1.004
1.002
1.000
0.998
0.996
0.994
0.992
0.990
-50 -25
0
25 50 75
Temperature (°C)
100 125
GFX VR Power Off from EN
V
GFX
(500mV/Div)
EN
(2V/Div)
VRA_READY
(2V/Div)
UGATEA
(20V/Div)
V
GFX
(1V/Div)
I
LOAD
(5A/Div)
VRA_READY
(1V/Div)
UGATEA
(20V/Div)
Boot VID = 1V
Time (100
μ
s/Div)
V
GFX
(500mV/Div)
EN
(2V/Div)
VRA_READY
(2V/Div)
UGATEA
(20V/Div)
GFX VR OCP
Time (100
μ
s/Div)
V
GFX
(1V/Div)
VRA_READY
(1V/Div)
LGATEA
(10V/Div)
UGATEA
(20V/Div)
Boot VID = 1V
Time (100
μ
s/Div)
GFX VR OVP and NVP
Time (40
μ
s/Div)
VID = 1.1V
www.richtek.com
22
DS8167B-00 October 2011
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