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EMC2103 数据表(PDF) 1 Page - Microchip Technology |
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EMC2103 数据表(HTML) 1 Page - Microchip Technology |
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1 / 85 page  2013 Microchip Technology Inc. DS0005250A-page 1 Datasheet PRODUCT FEATURES EMC2103 RPM-Based Fan Controller with Hardware Thermal Shutdown 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 ±0.5°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 and EMC2103-4 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) — ±0.5°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 — ±1°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 RoHS Compliant Package (EMC2103-1) or 16-pin, QFN RoHS Compliant Package (EMC2103-2 and EMC2103-4) |
类似零件编号 - EMC2103 |
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类似说明 - EMC2103 |
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