LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
TI AMC6821SDBQR product image
  • AMC6821SDBQR thumbnail 1
  • AMC6821SDBQR thumbnail 2
  • AMC6821SDBQR thumbnail 3
  • Pinout Diagram
  • Footprint Diagram
Images for reference only

TI AMC6821SDBQRRoHS

Manufacturer
TI
MPN
AMC6821SDBQR
LCSC Part #
C555157
Packaging
SSOP-16-150mil
Customer #
Key Attributes
Intelligent Temperature Monitor and PwM Fan Controller
Datasheetpdf iconTI AMC6821SDBQR

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Thermal Management
ManufacturerTI
PackagingSSOP-16-150mil
Resolution (Bits)11bit
FeaturesTemperature threshold monitoring;Multi-channel temperature sensing;On-chip digital filtering/averaging;Self-diagnosis function;Configurable temperature output;Hardware comparator / independent temperature control output
Voltage - Supply2.7V~5.5V
Operating Temperature-
Standby Current-
Temperature Conversion Time62.5ms
Interface TypeSMBus
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The AMC6821 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 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 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 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 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 has a programmable SMBALERT output to indicate error conditions and a dedicated FAN- FAULT output to indicate fan failure. The THERM pin is a fail- safe output for over- temperature conditions that can be used to throttle a CPU clock. Additionally, the OVR pin indicates the over- temperature limit as well. All of the alarm thresholds are set through the device registers. The AMC6821 is available in a QSOP- 16 package.

Features

AI Translation
  • Remote Temperature Sensor: ±2℃ Accuracy, 0.125℃ Resolution
  • Local Temperature Sensor: ±2℃ Accuracy, 0.125℃ Resolution
  • PWM Controller
  • PWM Frequency: 10Hz to 40kHz
  • Duty Cycle: 0% to 100%, 8 Bits
  • Automatic Fan Speed Control Loops
  • SMBus Interface
  • Power: 2.7V to 5.5V
  • Package (Green): QSOP-16 (4mm x 5mm)
  • RoHS Compliant

Applications

AI Translation
  • Notebook and Desktop PCs
  • Network Servers
  • Telecommunications Equipment
  • PC-Based Equipment
  • DLP and LCD Projectors
In-Stock: 5
5 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 2.8117$ 2.81
10+$ 2.7518$ 27.52
30+$ 2.7128$ 81.38
100+$ 2.601$ 260.10
Standard Packaging2500/Full Reel
Better price for more quantity?
$