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PDF EMC2103 Data sheet ( Hoja de datos )
| Número de pieza | EMC2103 | |
| Descripción | RPM-Based Fan Controller | |
| Fabricantes | SMSC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EMC2103 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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EMC2103
RPM-Based Fan Controller with
Hardware Thermal Shutdown
PRODUCT FEATURES
Data Brief
General Description
The EMC2103 is an SMBus compliant fan controller with
up to up to 3 external and 1 internal temperature
channels. The fan driver can be operated using two
methods each with two modes. The methods include an
RPM based Fan Speed Control Algorithm and a direct
PWM drive setting. The modes include manually
programming the desired settings or using the internal
programmable temperature look-up table to select the
desired setting based on measured temperature.
The temperature monitors offer 1°C accuracy (for
external diodes) with sophisticated features to reduce
errors introduced by series resistance and beta variation
of substrate thermal diode transistors commonly found
in processors.
The EMC2103 also includes a hardware programmable
temperature limit and dedicated system shutdown
output for thermal protection of critical circuitry.
Applications
Notebook Computers
Projectors
Graphics Cards
Industrial and Networking Equipment
Features
Programmable Fan Control circuit
— 4-wire fan compatible
— High and low frequency PWM
RPM based fan control algorithm
— 2.5% accuracy from 500RPM to 16k RPM
— Detects fan aging and variation
Temperature Look-Up Table
— Allows programmed fan response to temperature
— Controls fan speed or PWM drive setting
— Allows externally set temperature data to drive fan
— Supports DTS data from CPU
Up to Three External Temperature Channels
(EMC2103-2 only)
— Supports 45nm, 60nm, and 90nm CPU diodes
— Automatically detects and supports CPUs requiring BJT
or Transistor models
— Resistance error correction
— Supports discrete transistors (i.e. 2N3904)
— 1°C accurate (60°C to 125°C)
— 0.125°C resolution
Hardware Programmable Thermal Shutdown
Temperature
— Cannot be altered by software
— 65°C to 127°C Range
Programmable High and Low Limits for all channels
Internal Temperature Monitor
— 2°C accuracy
— 0.125°C resolution
3.3V Supply Voltage
SMBus 2.0 Compliant
— SMBus Alert compatible
Two dedicated GPIOs (EMC2103-2 and EMC2103-4
only)
Available in 12-pin, QFN Lead-Free RoHS Compliant
Package (EMC2103-1 and EMC2103-3) or 16-pin,
QFN Lead-Free RoHS Compliant Package
(EMC2103-2 and EMC2103-4)
SMSC EMC2103
PRODUCT PREVIEW
Revision 0.93 (01-08-10)
1 page  
Figure 3 Preliminary 12-Pin QFN 4mm x 4mm Package Drawing
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet EMC2103.PDF ] | |
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