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參數(shù)資料
| 型號(hào)： | RT9241CS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Two-Phase DC/DC Controller for CPU Core Power Supply |
| 中文描述： | 兩相直流/直流CPU內(nèi)核電源控制器 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 268K |
| 代理商： | RT9241CS |
Preliminary
RT9241
DS9241-00 November 2001
www.richtek-ic.com.tw
7
Functional Pin Description
VID4, VID3, VID2, VID1 and VID0 ( Pin1,2,3,4,5)
DAC voltage identification inputs for VRM9.0. These
pins are TTL-compatible and internally pulled to VDD
if left open.
COMP (Pin 6)
Output of the error amplifier and input of the PWM
comparator.
FB (Pin 7)
Inverting input of the internal error amplifier.
ADJ (Pin 8)
Current sense output for active droop adjust. Connect
a resistor from this pin to GND to set the amount of
load droop.
DVD (Pin 9)
Programmable power UVLO detection input. Trip
threshold = 1.25V at V(DVD) rising
SS (Pin 10)
Connect this SS pin to GND with a capacitor to set
the start time interval. Pull this pin below 1V(ramp
valley of saw-tooth wave in pulse width modulator) to
shutdown the converter output.
ISEN1 (Pin 12), ISEN2 (Pin 11)
Current sense inputs from the individual converter
channel’s sense component GND nodes.
GND (Pin 13)
Ground for the IC.
VSEN (Pin 14)
Power good and over voltage monitor input. Connect
to the microprocessor-CORE voltage.
ISP1 (Pin 18), ISEN2 (Pin 15)
Current sense inputs for individual converter
channels. Tie this pin to the component sense node.
PWM1 (Pin 17), PWM2 (Pin 16)
PWM outputs for each driven channel. Connect these
pins to the PWM input of the MOSFET driver.
PGOOD (Pin 19)
Power good open-drain output.
VDD (Pin 20)
IC power supply. Connect this pin to a 5V supply.
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