SGM31180

Active

18-Channel LED Driver with Selectable PWM Frequency

SGM31180.pdf

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℃.

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	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)	Lead Time** (Volume Range: Days)
SGM31180YTSE32G/TR	Active	TQFN-4×4-32AL	32	YES	YES	YES	YES	MSL2	-40℃ to +85℃	View	View	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.