MAX6615AEE+ Maxim Integrated Products, MAX6615AEE+ Datasheet
MAX6615AEE+
Specifications of MAX6615AEE+
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MAX6615AEE+ Summary of contents
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... Workstations SMBus is a trademark of Intel Corp. Typical Application Circuits and Pin Configurations appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. o Two Thermistor Inputs o Two Open-Drain PWM Outputs for Fan-Speed ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs ABSOLUTE MAXIMUM RATINGS All Voltages Are Referenced to GND Supply Voltage (V ) ...............................................-0.3V to +6V CC PWM_, TACH_, OT, FAN_FAIL ............................-0.3V to +13.5V ADD0, ADD1, SDA, SCL ..........................................-0.3V to +6V ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs ELECTRICAL CHARACTERISTICS (continued +3.0V to +5.5V 0°C to +125°C, unless otherwise noted. Typical values are PARAMETER SYMBOL START Condition Hold Time t HD:STO ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs (V = +3.3V +25°C, unless otherwise noted GPIO SINK CURRENT vs. SUPPLY VOLTAGE 0.4V GPIO_ 3.0 3.5 ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs PIN NAME MAX6616 MAX6615 20, GPIO0– — 23, 24 GPIO5 3 1 PWM1 4 2 TACH1 6 3 ADD0 7 4 ADD1 GND 9 6 ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs WRITE BYTE FORMAT S ADDRESS WR — 7 BITS — SLAVE ADDRESS: EQUIVA- LENT TO CHIP-SELECT LINE OF A 3-WIRE INTERFACE READ BYTE FORMAT S ADDRESS WR ACK — 7 BITS ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs HIGH LOW SMBCLK SMBDATA t t SU:STA HD:STA A = START CONDITION B = MSB OF ADDRESS CLOCKED INTO SLAVE C = LSB OF ADDRESS CLOCKED INTO ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 1. Temperature Data Format (High Byte and Low Byte) TEMPERATURE (°C) BINARY VALUE 140.0 127.0 25.375 25.0 0.5 0.0 <0 ture. The thermistor data in the temperature register(s) gives the ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs 500kΩ +3.3V 18kΩ 10kΩ PWM 1µF 27kΩ +3.3V Figure 5. Driving a Fan with a PWM-to-DC Circuit V CC 4.7kΩ PWM Figure 6. Controlling a PWM Input Fan with the MAX6615/ ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs DUTY CYCLE REGISTER 02h, BIT FAN-START DUTY CYCLE REGISTER 02h, BIT FAN-START TEMPERATURE Figure 7. Automatic PWM Duty Control the duty cycle returns to either ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 2. Slave Address Decoding (ADD0 and ADD1) ADDO ADD1 GND GND GND High-Impedance GND V CC High-Impedance GND High-Impedance High-Impedance High-Impedance GND CC V High-Impedance CC V ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 3. Register Map POR R/W ADD FUNCTION STATE 0000 Temperature R 00h 0000 channel 1 0000 Temperature R 01h 0000 channel 2 0001 C onfi g ur ati on R/W ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 3. Register Map (continued) POR R/W ADD FUNCTION STATE PWM1 instantan- 0000 R 0Dh 000x eous duty cycle PWM2 0000 instantan- R 0Eh 000x eous duty cycle Channel 1 0000 ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 3. Register Map (continued) POR R/W ADD FUNCTION STATE 0000 Fan status R/W 1Ch 0000 byte 0000 Channel 1 R 1Eh 0000 temp LSBs 0000 Channel 2 R 1Fh 0000 ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs zero, the duty cycle is zero below the fan-start tempera- ture and has this value when the fan-start temperature is reached. A value of 240 represents 100% duty cycle. Writing any ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs Table 7. PWM Frequency Select PWM SELECT A SELECT B FREQUENCY (Hz 100 1 35k X Note: At 35kHz, duty-cycle resolution is decreased from a ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs MAX6615/MAX6616 ERROR 4 OPTIMIZED FOR +30°C TO +100° -10 - TEMPERATURE (°C) Figure 9. Data Error vs. Temperature Using a ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs TOP VIEW PWM1 1 TACH1 2 3 ADD0 4 ADD1 MAX6615 5 GND TH1 6 7 REF 8 TH2 QSOP BETATHERM 10K3A1 THERMISTOR 1.6kΩ 1.6kΩ BETATHERM 10K3A1 THERMISTOR TO SMBus 18 ...
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Dual-Channel Temperature Monitors and Fan-Speed Controllers with Thermistor Inputs BETATHERM 10K3A1 THERMISTOR 1.6kΩ 1.6kΩ BETATHERM 10K3A1 THERMISTOR TO SMBus For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 16 QSOP 24 QSOP ______________________________________________________________________________________ Typical Application ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...