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RT8239 Datasheet(PDF) 15 Page - Richtek Technology Corporation

Part # RT8239
Description  High Efficiency, Main Power Supply Controller for Notebook Computers
PDF  24 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8239 Datasheet(HTML) 15 Page - Richtek Technology Corporation

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RT8239A/B/C
15
DS8239A/B/C-06 October 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
OVP
Time (10ms/Div)
VIN = 12V, RTON = 100k
Ω, ENLDO = VIN, No Load
VOUT1
(2V/Div)
PGOOD
(5V/Div)
VOUT2
(2V/Div)
UVP
Time (100
μs/Div)
VIN = 12V, RTON = 100k
Ω, ENLDO = VIN
VOUT1
(2V/Div)
LGATE1
(10V/Div)
UGATE1
(50V/Div)
PGOOD
(5V/Div)
VOUT2 DEM-MODE Load Transient Response
Time (20
μs/Div)
ENLDO = VIN, IOUT2 =1A to 8A
VOUT2_AC
(50mV/Div)
Inductor
Current
(5A/Div)
UGATE2
(20V/Div)
LGATE2
(5V/Div)
VIN = 12V, RTON = 100k
Ω,
Power Off from ENTRIP2
Time (20ms/Div)
VIN = 12V, VENTRIP1 = VENTRIP2 = 1.5V,
ENLDO = VIN, RTON = 100k
Ω, No Load
VOUT2
(1V/Div)
PGOOD
(10V/Div)
ENTRIP2
(5V/Div)
RT8239B/C
VOUT1 DEM-MODE Load Transient Response
Time (20
μs/Div)
VIN = 12V, RTON = 100k
Ω,
ENLDO = VIN, IOUT1 =1A to 8A
VOUT1_AC
(50mV/Div)
Inductor
Current
(5A/Div)
UGATE1
(20V/Div)
LGATE1
(5V/Div)
Power On from ENTRIP2
Time (1ms/Div)
VIN = 12V, VENTRIP1 = VENTRIP2 = 1.5V,
ENLDO = VIN, RTON = 100k
Ω, No Load
VOUT2
(1V/Div)
PGOOD
(5V/Div)
ENTRIP2
(5V/Div)
RT8239B/C



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