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MAX6615 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX6615 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 20 page Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs _______________________________________________________________________________________ 5 PIN MAX6616 MAX6615 NAME FUNCTION 1, 2, 5, 20, 23, 24 — GPIO0– GPIO5 Active-Low, Open-Drain GPIOs. Can be pulled up to 5.5V regardless of VCC. 3 1 PWM1 Fan Driver Output 1. The pullup resistor can be connected to a supply voltage as high as 12V, regardless of the supply voltage. See the PWM Output section for configuration. 4 2 TACH1 Fan Tachometer Input. Accepts logic-level signal from fan’s tachometer output. Can be connected to a supply voltage as high as 12V, regardless of the supply voltage. 6 3 ADD0 SMBus Slave Address Selection 7 4 ADD1 SMBus Slave Address Selection 8 5, 10 GND Ground. Must be connected together for MAX6615. 9 6 TH1 External Thermistor Input 1. Connect a thermistor in series with a fixed resistor between REF and ground. 10, 15 — N.C. No Connection 11 7 REF Reference Voltage Output. Provides 1V during measurements. High impedance when not measuring. 12 8 TH2 External Thermistor Input 2. Connect a thermistor in series with a fixed resistor between REF and ground. 13 9 FAN_FAIL Fan-Failure Output. Asserts low when either fan fails. Can be pulled up as high as 5.5V regardless of VCC. High impedance when VCC = 0V. 14 — PRESET Connect to GND or VCC to set POR state of the GPIO0. 16 11 OT Overtemperature Output. Active low, open drain. Typically used for system shutdown or clock throttling. Can be pulled up as high as 5.5V regardless of VCC. High impedance when VCC = 0V. 17 12 VCC Power Supply. 3.3V nominal. Bypass with a 0.1µF capacitor to GND. 18 13 SDA SMBus Serial-Data Input/Output. Pull up with a 10k Ω resistor. Can be pulled up as high as 5.5V regardless of VCC. High impedance when VCC = 0V. 19 14 SCL SMBus Serial-Clock Input. Pull up with a 10k Ω resistor. Can be pulled up as high as 5.5V regardless of VCC. High impedance when VCC = 0V. 21 15 TACH2 Fan Tachometer Input. Accepts logic-level signal from fan’s tachometer output. Can be connected to a supply voltage as high as 12V, regardless of the supply voltage. 22 16 PWM2 Fan Driver Output 2. The pullup resistor can be connected to a supply voltage as high as 12V, regardless of the supply voltage. See the PWM Output section for configuration. Pin Description |
Similar Part No. - MAX6615_08 |
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Similar Description - MAX6615_08 |
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