Fan Speed Controller
Global Mixed-mode Technology
G761
Fan Speed Controller with Linear or PWM Mode
Features
SMBus Interface Linear or...
Description
Global Mixed-mode Technology
G761
Fan Speed Controller with Linear or PWM Mode
Features
SMBus Interface Linear or PWM Mode Speed Control Open or Close Loop Fan Speed Control Supply Voltage Range 3V~5.5V ADD0 Pin to Select 3 Different SMBus Addresses SMBus Alert # for G761 G761 has Built-in Inverter for Crystal Oscilla-
tor Internal 32kHz clock generator, +/- 1% accuracy MSOP-10 for G761
Applications
Notebook PC Industrial PC LAN Switch Servers Telecom equipment Industrial Control
General Description
The G761 is a single chip solution for fan speed control. It can be directly connected to the fan and performs close-loop or open-loop control. And there are two modes, PWM and linear, to drive the fan. It determined the current fan speed based on the fan rotation pulses and an externally supplied clock. The desired fan speed is programmed via the SMBus. The actual fan speed and fan status can be read via the SMBus. Short-circuit protection i...
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