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參數(shù)資料
| 型號： | G760A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Fan Speed PWM Controller |
| 中文描述： | 風(fēng)扇轉(zhuǎn)速PWM控制器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 173K |
| 代理商： | G760A |
Ver 4.3
Oct 28, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G760A
Global Mixed-mode Technology Inc.
Fan Speed PWM Controller
Features
Constant Fan Speed Control
PWM control for stable operation
Build-in MOSFET switch
SMBus interface
Internal short-circuit protection
On/Off control provided
Applications
Notebook PC
Industrial PC
LAN Switch
Servers
Telecom equipment
Industrial Control
General Description
G760 is a single chip solution for fan speed control,
packaged in a space saving SO-8 package. It con-
nects directly to the fan and performs closed-loop
control of the fan speed. The only external compo-
nent required is a 10μF capacitor. It determined the
current fan speed based on the fan rotation pulses
and an externally supplied clock. It uses pulse width
modulation (PWM) method and an on-chip
MOSFET to control the fan speed to
±
2% of the
programmed speed. The desired fan speed is pro-
grammed via the SMBus. The actual fan speed and
fan status can be read via the SMBus. Short-circuit
protection is implemented to prevent damages to
the fan and this IC itself. An On/Off control pin is
also provided.
Ordering Information
PART*
G760A
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
8-SOP
Pin configuration
ON/OFF
8
6
5
1
2
3
4
OUT
F.G.
GND
V
CC
SMBDATA
SMBCLKLK
CLK
8Pin SOP
G760A
7
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