产品概述 返回TOPB3a嘉泰姆

The CXFA3160 contains 3 precise digital thermometers, one fan controllers, hardware and software thermal shutdown. The thermometers report the temperature of 3 remote sensors. The remote sensors are diode-connected transistors typically a low-cost, easily mounted 2N3904 NPN type or the diode built-in in CPU. Remote accuracy is ±1°C for multiple transistor manufacturer. The CXFA3160 also support offset adjust function via SMBus to fix the error due to different CPU diode or parasitic resistors. The 2-wire serial interface accepts standard System Management Bus (SMBusTM) Write Byte, Read Byte, Send Byte, and Receive Byte commands. CXFA3160 SMBus address is 7ah for write and 7bh for read. And supports writting protection function by command 20h to prevent error behavior of μP. CXFA3160 contains one PWM mode fan controllers. FAN controller performs closed-loop and open-loop control. CXFA3160determines the current fan speed based on the FG inputs and an externally supplied 32.768kHz clock. CXFA3160also provide ALERT for fan fail and out of control event. The CXFA3160provides hardware and software thermal shutdown. The hardware thermal shutdown is for the sensor 2. The trigger point is set external resistors. The trigger points of software thermal shutdown are set via SMBus. If thermal shutdown event occurs, THERM pin outputs low

   产品特点 返回TOPB3a嘉泰姆

„ Measures Three Remote Temperatures B3a嘉泰姆

„ Adjustable Offset for Each Sensor via SMBus B3a嘉泰姆

„ Accuracy: ±1°C (+ 60°C to + 100°C) ±3°C (- 10°C to + 120°C) B3a嘉泰姆

„ +4.5V to +5.5V Supply Range B3a嘉泰姆

„ Programmable Hardware Thermal Shutdown for Sensor 2 and Programmable Software Thermal Shutdown for Sensor 1,3. B3a嘉泰姆

„ SMBus 2-Wire Serial Interface with Writting Protection Function. B3a嘉泰姆

„ Alert Signal for Diode Fault, Fan Fail, and Fan Out of Control B3a嘉泰姆

„ Supports SMBus Alert Response B3a嘉泰姆

„ PWM Mode Speed Control B3a嘉泰姆

„ Closed Loop Speed Control and programmable 8 Bits Open Loop PWM Duty cycle Control for FAN B3a嘉泰姆

„ Wide Speed Control Range for FAN, Accuracy within 2%, when SET_CNT1 > 50 B3a嘉泰姆

„ Internal Current- limit and Over-temperature Protection for the Fan B3a嘉泰姆

„ SSOP-16 & TQFN4X4-24 PackageB3a嘉泰姆

   应用范围 返回TOPB3a嘉泰姆

„ Desktop and Notebook B3a嘉泰姆

„ Central Office Computers B3a嘉泰姆

„ Telecom Equipment B3a嘉泰姆

„ Smart Battery Packs B3a嘉泰姆

„ Industrial Controls B3a嘉泰姆

„ LAN ServersB3a嘉泰姆

   技术规格书（产品PDF) 返回TOP B3a嘉泰姆

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