G760A View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
G760A Datasheet PDF : 5 Pages
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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
PART*
G760A
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
8-SOP
Pin configuration
OUT 1
F.G. 2
ON/OFF 3
GND 4
G760A
8 VCC
7 SMBDATA
6 SMBCLKLK
8Pin SOP
5 CLK
Ver 4.3
Oct 28, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
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