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參數(shù)資料
| 型號(hào)： | RT9226B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SYNCHRONOUS PWM STEP-DOWN DC/DC CONVERTER CONTROLLER |
| 中文描述： | 同步PWM降壓直流/直流轉(zhuǎn)換控制器 |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 139K |
| 代理商： | RT9226B |
Preliminary
RT9226B
DS9226B-01 May 2001
www.richtek-ic.com.tw
3
Function Block Diagram
Pin Description
Pin No.
Pin Name
Pin Function
1
VSEN
Output Voltage Monitoring Input
2
OCSET
Current Limit Set Pin with 200
μ
A Current Sink
3
SS
Soft Start, connect a capacitor from this pin to GND
4
FB
Feedback Input Pin
5
EN
Regulator Enable with Low Shutdown
6
GND
Ground
7
PGNDH
High Side Drive GND
8
PGOOD
Power Good Indication Output
9
PHASE
Current Limit Sense Input
10
UGATE
High Side Driver Output
11
BOOT
Driver Power
12
PGNDL
Low Side Driver GND
13
LGATE
Low Side Driver Output
14
VCC
Power Supply Input
Soft
Start
Power-on
Reset
Control
Logic
Oscillator
Vref
10
μ
A
4.5V
Error
Amp
+
PWM
Comparator
200
μ
A
SS
EN
FB
PGOOD
VCC
OCSET
PHASE
BOOT
UGATE
PGNDH
GND
Output
Voltage
Monitor
VSEN
47K
Gate
Control
Logic
V
CC
LGATE
PGNDL
Over Current
Comparator
_
_
+
+
+
_
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| RT9226BCS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SYNCHRONOUS PWM STEP-DOWN DC/DC CONVERTER CONTROLLER |
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