AMC6821SQDBQRQ1
ActiveAUTOMOTIVE REMOTE AND LOCAL TEMP SENSOR WITH AUTOMATIC FAN SPEED CONTROL AND FAULT DETECTION
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AMC6821SQDBQRQ1
ActiveAUTOMOTIVE REMOTE AND LOCAL TEMP SENSOR WITH AUTOMATIC FAN SPEED CONTROL AND FAULT DETECTION
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | AMC6821SQDBQRQ1 | AMC6821 Series |
|---|---|---|
| Accuracy [Max] | 2 °C | 2 - 3 °C |
| Accuracy [Min] | -2 °C | -3 - -2 °C |
| Embedded | - | False |
| Function | Temperature Monitor | Temperature Monitor |
| Grade | Automotive | Automotive |
| Interface | - | SMBus, I2C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature [Max] | 125 °C | 125 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Alarm | True | True |
| Output Fan | True | True |
| Output Type | SMBus | SMBus |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) | 16-SSOP (0.154", 3.90mm Width) |
| Qualification | AEC-Q100 | AEC-Q100 |
| Sensing Range | - | 100 °C |
| Sensing Range | - | -25 °C |
| Sensing Temperature [Max] | 125 °C | 125 °C |
| Sensing Temperature [Min] | -40 °C | -40 °C |
| Sensitivity | - | 1 °C |
| Sensitivity | - | -1 °C |
| Sensor Type | External, Internal | External, Internal, Temperature, Fan Controller |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 16-SSOP | 16-SSOP |
| Topology | Comparator, Register Bank, Multiplexer, Fan Control, ADC (Sigma Delta) | Comparator, Register Bank, Multiplexer, Fan Control, ADC (Sigma Delta) |
| Utilized IC / Part | - | AMC6821 |
| Voltage - Supply [Max] | 5.5 V | 5.5 V |
| Voltage - Supply [Min] | 2.7 V | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.73 | |
| 10 | $ 3.55 | |||
| 25 | $ 3.15 | |||
| 50 | $ 3.00 | |||
| 100 | $ 2.92 | |||
| 500 | $ 2.44 | |||
| 1000 | $ 2.29 | |||
| Digi-Reel® | 1 | $ 4.73 | ||
| 10 | $ 3.55 | |||
| 25 | $ 3.15 | |||
| 50 | $ 3.00 | |||
| 100 | $ 2.92 | |||
| 500 | $ 2.44 | |||
| 1000 | $ 2.29 | |||
| Tape & Reel (TR) | 2500 | $ 2.04 | ||
| 5000 | $ 1.97 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.92 | |
| 100 | $ 2.55 | |||
| 250 | $ 1.79 | |||
| 1000 | $ 1.44 | |||
AMC6821 Series
INTEGRATED PWM FAN CONTROLLER, TACHOMETER, 2-CHANNEL TEMPERATURE SENSOR 16-SSOP -40 TO 125
| Part | Accuracy [Min] | Accuracy [Max] | Output Alarm | Output Type | Mounting Type | Topology | Sensing Temperature [Max] | Sensing Temperature [Min] | Function | Output Fan | Voltage - Supply [Min] | Voltage - Supply [Max] | Supplier Device Package | Operating Temperature [Max] | Operating Temperature [Min] | Package / Case | Sensor Type | Sensitivity [Max] | Sensitivity [Min] | Supplied Contents | Utilized IC / Part | Interface | Sensing Range [Max] | Sensing Range [Min] | Embedded | Qualification | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments AMC6821SDBQR | -3 °C | 3 °C | SMBus | Surface Mount | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank | 125 °C | -40 °C | Temperature Monitor | 2.7 V | 5.5 V | 16-SSOP | 125 °C | -40 °C | 16-SSOP (0.154", 3.90mm Width) | External, Internal | ||||||||||||
Texas Instruments AMC6821SDBQ | -2 °C | 2 °C | SMBus | Surface Mount | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank | 125 °C | -40 °C | Temperature Monitor | 2.7 V | 5.5 V | 16-SSOP | 125 °C | -40 °C | 16-SSOP (0.154", 3.90mm Width) | External, Internal | ||||||||||||
Texas Instruments AMC6821EVM-PDK | 2.7 V | 5.5 V | Fan Controller, Temperature | 1 °C | -1 °C | Board(s) | AMC6821 | I2C, SMBus | 100 °C | -25 °C | |||||||||||||||||
Texas Instruments AMC6821EVM | 2.7 V | 5.5 V | Fan Controller, Temperature | 1 °C | -1 °C | Board(s) | AMC6821 | I2C, SMBus | 100 °C | -25 °C | |||||||||||||||||
Texas Instruments AMC6821SDBQRG4 | -2 °C | 2 °C | SMBus | Surface Mount | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank | 125 °C | -40 °C | Temperature Monitor | 2.7 V | 5.5 V | 16-SSOP | 125 °C | -40 °C | 16-SSOP (0.154", 3.90mm Width) | External, Internal | ||||||||||||
Texas Instruments AMC6821SQDBQRQ1 | -2 °C | 2 °C | SMBus | Surface Mount | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank | 125 °C | -40 °C | Temperature Monitor | 2.7 V | 5.5 V | 16-SSOP | 125 °C | -40 °C | 16-SSOP (0.154", 3.90mm Width) | External, Internal | AEC-Q100 | Automotive | ||||||||||
Texas Instruments AMC6821SDBQG4 | -2 °C | 2 °C | SMBus | Surface Mount | ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank | 125 °C | -40 °C | Temperature Monitor | 2.7 V | 5.5 V | 16-SSOP | 125 °C | -40 °C | 16-SSOP (0.154", 3.90mm Width) | External, Internal |
Description
General part information
AMC6821 Series
The AMC6821-Q1 is an intelligent temperature monitor and pulse-width modulation (PWM) fan controller. It is designed for noise-sensitive or power-sensitive applications that require active system cooling. Using either a low-frequency or a high-frequency PWM signal, this device can simultaneously drive a fan, monitor remote sensor diode temperatures, and measure and control the fan speed so that it operates with minimal acoustic noise at the lowest possible speed.
The AMC6821-Q1 has three fan control modes: Auto Temperature-Fan mode, Software-RPM mode, and Software-DCY mode. Each mode controls the fan speed by changing the duty cycle of a PWM output. Auto Temperature-Fan mode is an intelligent, closed-loop control that optimizes fan speed according to user-defined parameters. This mode allows the AMC6821-Q1 to run as a stand-alone device without CPU intervention; the fan can continue to be controlled (based on temperature measurements) even if the CPU or system locks up. Software-RPM mode is a second closed-loop control. In this mode, the AMC6821-Q1 adjusts the PWM output to maintain a consistent fan speed at a user-specified target value; that is, the device functions as a fan speed regulator. Software-RPM mode can also be used to allow the AMC6821-Q1 to operate as a stand-alone device. The third mode, Software-DCY, is open-loop. In Software-DCY mode, the PWM duty cycle is set directly by the value written to the device.
The AMC6821-Q1 has a programmableSMBALERToutput to indicate error conditions and a dedicatedFAN-FAULToutput to indicate fan failure. TheTHERMpin is a fail-safe output for over-temperature conditions that can be used to throttle a CPU clock. Additionally, theOVRpin indicates the over-temperature limit as well. All of the alarm thresholds are set through the device registers. The AMC6821-Q1 is available in a SSOP-16 package.
Documents
Technical documentation and resources