Os motores de busca de Datasheet de Componentes eletrônicos |
|
ADM1031 Folha de dados(PDF) 3 Page - ON Semiconductor |
|
ADM1031 Folha de dados(HTML) 3 Page - ON Semiconductor |
3 / 30 page ADM1031 http://onsemi.com 3 PIN ASSIGNMENT Pin No. Mnemonic Description 1 PWM_OUT1 Digital Output, Open−Drain. Pulse width modulated output to control fan speed. Requires pullup resistor (10 kW typical). 2 TACH1/AIN1 Digital/Analog Input. Fan tachometer input to measure FAN1 fan speed. Can be reprogrammed as an analog input to measure speed of a 2−wire fan via a sense resistor (2 W typical). 3 PWM_OUT2 Digital Output, Open−Drain. Pulse width modulated output to control FAN2 fan speed. Requires pullup resistor (10 kW typical). 4 TACH2/AIN2 Digital/Analog Input. Fan tachometer input to measure FAN2 fan speed. Can be reprogrammed as an analog input to measure speed of a 2−wire fan via a sense resistor (2 W typical). 5 GND System Ground. 6 VCC Power. Can be powered by 3.3 V standby power if monitoring in low power states is required. 7 THERM Digital I/O, Open−Drain. An active low thermal overload output that indicates a violation of a temperature set point (overtemperature). Also acts as an input to provide external fan control. When this pin is pulled low by an external signal, a status bit is set, and the fan speed is set to full−on. Requires pullup resistor (10 kW). 8 FAN_FAULT Digital Output, Open−Drain. Can be used to signal a fan fault. Drives second fan to full speed if one fan fails. Requires pullup resistor (typically 10 kW). 9 D1– Analog Input. Connected to cathode of first remote temperature−sensing diode. The temperature−sensing element is either a Pentium III substrate transistor or a general−purpose 2N3904. 10 D1+ Analog Input. Connected to anode of first remote temperature−sensing diode. 11 D2– Analog Input. Connected to cathode of second remote temperature−sensing diode. 12 D2+ Analog Input. Connected to anode of second remote temperature−sensing diode. 13 ADD Three−State Logic Input. Sets two lower bits of device SMBus address. 14 INT(SMBALERT) Digital Output, Open−Drain. Can be programmed as an interrupt (SMBus ALERT) output for temperature/fan speed interrupts. Requires pullup resistor (10 kW typical). 15 SDA Digital I/O, Serial Bus Bidirectional Data. Open−drain output. Requires pullup resistor (2.2 kW typical). 16 SCL Digital Input, Serial Bus Clock. Requires pullup resistor (2.2 kW typical). ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1) Parameter Test Conditions/Comments Min Typ Max Unit POWER SUPPLY Supply Voltage, VCC 3.0 3.3 3.6 V Supply Current, ICC Interface inactive, ADC active Standby mode 1.4 32 3.0 50 mA mA TEMPERATURE−TO−DIGITAL CONVERTER Local Sensor Accuracy ±1.0 ±3.0 °C Resolution 0.25 °C Remote Diode1 Sensor Accuracy 60°C ≤ TD ≤ 100°C ±0.5 ±1.0 °C Remote Diode2 Sensor Accuracy 60°C ≤ TD ≤ 100°C ±0.5 ±1.75 °C Resolution 0.125 °C Remote Sensor Source Current High level Low level 180 11 mA OPEN−DRAIN DIGITAL OUTPUTS (THERM, INT, FAN_FAULT, PWM_OUT) Output Low Voltage, VOL IOUT = –6.0 mA; VCC = 3.0 V 0.4 V High−Level Output Leakage Current, IOH VOUT = VCC; VCC = 3.0 V 0.1 1.0 mA |
Nº de peça semelhante - ADM1031 |
|
Descrição semelhante - ADM1031 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |