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SGM31180

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18-Channel LED Driver with Selectable PWM Frequency

fileSGM31180.pdf
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SGM31180 consists of 18 constant current channels each with independent PWM control, designed for driving LEDs. PWM frequency can be programmed to the corresponding value according to 8/10/12/16-bit PWM resolution setting and oscillator frequency setting via I2C interface. The output current of each channel can be set to 20mA via a 4kΩ external resistor and an internal register. SGM31180 has a current limit function to avoid over current, which is configured by register bit. The average LED current of each channel can be changed in maximum 65535 steps by changing the PWM duty cycle via an I2C interface. 

Pulling SDB low or using the software shutdown feature can turn off the SGM31180 to reduce power consumption. 

SGM31180 is available in a Green TQFN-4×4-32AL package. It operates from 2.7V to 5.5V over the temperature range of -40℃ to +85℃.

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FEATURES
  • 2.7V to 5.5V Supply
  • I2C Interface, Automatic Address Increment Function
  • Four Selectable I2C Addresses and a Broadcast Address
  • SDB Reset I2C Module and Internal Reset Register
  • ECO Mode for Auto Power Saving
  • High Precision Current Sinking
    • Device to Device Error: ±5%
    • Channel to Channel Error: ±5%
  • Adjustable PWM Frequency:
    • 125kHz; 62.5kHz; 31kHz; 488Hz; 244Hz; 122Hz @ 8-Bit PWM Resolution
    • 31kHz; 15.6kHz; 7.8kHz; 122Hz @ 10-Bit PWM Resolution
    • 7.8kHz, 3.9kHz, 2kHz @ 12-Bit PWM Resolution
    • 488Hz, 244Hz, 122Hz @ 16-Bit PWM Resolution
  • 18-Channel RGB LED Driver
    • 256-Level Global Current Configuration
    • 256-Level Green/Red/Blue Light Current Setting
    • 256-Level LED Module Current Setting
    • Max 65535-Level Individual PWM Modulation
  • EMI and Audible Noise Reduction
    • Phase Shifting and Inverting Function
    • Spread Spectrum Function
    • PWM Scatter Method
  • -40℃ to +85℃ Temperature Range
  • Available in a Green TQFN-4×4-32AL Package
APPLICATIONS

Mobile Phones and Other Hand-Held Devices for LED Display
LED in Home Appliances

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM31180YTSE32G/TR
Active
TQFN-4×4-32AL
32
YES
YESYESYESMSL2
-40℃ to +85℃
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1-24 units : $0.98/unit
25-99 units : $0.84/unit
100-249 units : $0.7/unit
250-499 units : $0.56/unit
500-999 units : $0.49/unit
1000-9999 units : $0.364/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 88 days
1000K and above : 112 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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Copyright © 2025 SG MICRO CORP All rights reserved.