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BU6909AGFT

更新时间： 2024-11-22 11:08:19
品牌 Logo 应用领域
罗姆 - ROHM 电池开关电机驱动电脑风扇驱动器
页数 文件大小 规格书
21页 1004K
描述
BU6909AGFT是DC无刷风扇电机驱动器系列中内置霍尔元件的5V单相全波风扇电机驱动器。小型封装、Auto gain control（以下简称AGC）功能、基于软开关的静音驱动、控制电池消耗的待机功能等，是适用于笔记本电脑冷却风扇的IC。

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BU6909AGFT 数据手册

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DC Brushless Fan Motor Driver  
5V Single-phase Full-wave  
Fan Motor Driver  
BU6909AGFT  
Description  
The BU6909AGFT is a 5V single-phase full-wave FAN motor driver with built in HALL element. It is part of the DC brushless  
FAN motor driver series. BU6909AGFT is built in a compact package and provides Auto Gain Control function (AGC), silent  
drive by soft switching, and low battery consumption via its standby function. BU6909AGFT is best used for notebook PC  
cooling FANs.  
Features  
Package  
TSSOF6  
W(Typ) x D(Typ) x H(Max)  
2.90mm x 3.80mm x 0.8mm  
„
„
„
„
„
„
„
Built in HALL element  
Auto Gain Control function (AGC)  
Soft switching drive (PWM type)  
Low PWM duty start up  
Quick start function  
Stand-by mode  
Incorporates lock protection and automatic restart  
circuit  
„
Compact package (GFT:TSSOF6 flat lead package)  
When TSSOF6 is mounted, package thickness is  
0.3mm  
„
„
Rotating speed pulse signal (FG) output  
PWM speed control  
TSSOF6  
Applications  
„ For compact 5V FAN such as notebook PC cooling FAN  
Absolute Maximum Ratings  
Parameter  
Symbol  
VCC  
Limit  
Unit  
V
Supply Voltage  
7
Power Dissipation  
Pd  
0.54(Note 1)  
W
Operating Temperature  
Storage Temperature  
Output Voltage  
Topr  
Tstg  
-40 to +85  
°C  
°C  
V
-55 to +125  
VOMAX  
IOMAX  
VFG  
7
800(Note 2)  
7
Output Current  
mA  
V
FG Signal Output Voltage  
FG Signal Output Current  
Junction Temperature  
IFG  
10  
mA  
°C  
Tjmax  
125  
(Note 1) Reduce by 5.4mW/℃ over 25℃. (On 70.0mm×70.0mm×1.6mm glass epoxy board)  
(Note 2) This value is not to exceed Pd.  
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit  
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated  
over the absolute maximum ratings.  
Recommended Operating Condition  
Parameter  
Symbol  
VCC  
Limit  
Unit  
V
Operating Supply Voltage Range  
1.8 to 5.5  
○Product structure：Silicon monolithic integrated circuit ○This product has no protection against radioactive rays  
.
www.rohm.com  
TSZ02201-0H1H0B101190-1-2  
28.Oct.2014 Rev.002  
© 2014 ROHM Co., Ltd. All rights reserved.  
1/18  
TSZ22111・14・001  
1234567...21

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