G760A Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – Fan Speed PWM Controller

Global Mixed-mode Technology Inc.
Fan Speed PWM Controller
G760A
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
ORDER
NUMBER
G760A
G760Af
TEMP. TRANSPORT
RANGE
MEDIA
-55°C to +125°C
2500 Units on
Tape and Reel
-55°C to +125°C
2500 Units on
Tape and Reel
PACKAGE
SOP-8L
SOP-8L
(Pb Free)
Pin Configuration
OUT ¹
F.G. ²
ON/OFF ³
GND 4
G760A
SOP-8L
8 ^VCC
7 _SMBDATA
6 SMBCLKLK
5 CLK
Ver: 4.5
May 19, 2003
TEL: [phone]
http://www.gmt.com.tw
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