Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

RT9248 Datasheet(PDF) 10 Page - Richtek Technology Corporation

Part # RT9248
Description  Multi-Phase PWM Controller for CPU Core Power Supply
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9248 Datasheet(HTML) 10 Page - Richtek Technology Corporation

Back Button RT9248 Datasheet HTML 6Page - Richtek Technology Corporation RT9248 Datasheet HTML 7Page - Richtek Technology Corporation RT9248 Datasheet HTML 8Page - Richtek Technology Corporation RT9248 Datasheet HTML 9Page - Richtek Technology Corporation RT9248 Datasheet HTML 10Page - Richtek Technology Corporation RT9248 Datasheet HTML 11Page - Richtek Technology Corporation RT9248 Datasheet HTML 12Page - Richtek Technology Corporation RT9248 Datasheet HTML 13Page - Richtek Technology Corporation RT9248 Datasheet HTML 14Page - Richtek Technology Corporation  
Zoom Inzoom in Zoom Outzoom out
 10 / 14 page
background image
RT9248
Preliminary
10
DS9248-05
March 2007
www.richtek.com
3-Phase Converter and Components Function Grouping
PWM1
ISP1
RT9248
COMP
FB
ADJ
ISN1
PWM2
ISP2
GND
VOSS
DVD
ISN23
PWM3
IMAX
SS
ISP3
12V
V
CORE
12V
VID
Compensation
& Offset
Droop Setting
Driver Power
UVLO
DAC Offset
Voltage Setting
OCP Setting
SGND
VSEN
VDIF
VCC
IN
PGND
BST
DRVH
SW
DRVL
RT9603
12V
12V
Current Sense
Components
PGOOD
VCC
IN
PGND
BST
DRVH
SW
DRVL
RT9603
VCC
IN
BST
DRVH
SW
DRVL
RT9603
PGND
Design Procedure Suggestion
a. Output filter pole and zero (Inductor, output capacitor
value & ESR).
b. Error amplifier compensation & sawtooth wave amp-
litude (compensation network).
c. Kelvin sense for V
CORE.
Current Loop Setting
a. GM amplifier S/H current (current sense component
R
DS(ON), ISPx & ISNx pin external resistor value,
keep ISPx current < 60
μA at full load condition for
better load line linearity).
b. Over-current protection trip point (IMAX pin resistor,
keep ISPx current < 90
μA at OCP condition for
precision issue).
VRM Load Line Setting
a. Droop amplitude (ADJ pin resistor).
b. No load offset (additional resistor in compensation
network).
c. DAC offset voltage setting (VOSS pin & compen-
sation network resistor).
Power Sequence & SS
DVD pin external resistor and SS pin capacitor.
PCB Layout
a. Kelvin sense for current sense GM amplifier input.
b. Refer to layout guide for other item.
Voltage Loop Setting



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com