The SGM37601 is a high-efficiency LED driver designed specifically to provide backlight power for LED arrays in display applications. The SGM37601 supports up to 12 LEDs in series per string. It adopts peak current mode control, and the minimum LED string cathode voltage is regulated to an adequate operating headroom voltage, which produces sufficient voltage margin to guarantee the accuracy of the current.
The SGM37601 equips six internal current sinks for up to ±1.2% current matching, ensuring superior brightness uniformity across LED strings.
The LED current, switching frequency and dimming mode can be set via I2C interface. An internal 40V power switch with 155mΩ RDSON, combined with peak- current-mode control, provides high efficiency performance and cycle-by-cycle over-current protection. The switching frequency can be programmed between 100kHz and 1.6MHz. The SGM37601 can achieve high efficiency and allows small component size.
The SGM37601 is available in Green TQFN-3.5×3.5- 20L and TQFN-3×3-24L packages.
- Wide Input Voltage: 2.8V to 24V
- High Output Voltage: up to 40V
- Programmable LED Current: 6mA to 25mA per Channel
- LED Current Accuracy ±2%, Matching ±1.2%
- Dimming Controls
- Direct PWM up to 25kHz with Minimum 1% Duty
- PWM to Analog:
- Up to 2kHz @ 12-Bit Resolution
- Up to 4kHz @ 11-Bit Resolution
- Up to 8kHz @ 10-Bit Resolution
- PWM to Mixed:
- Up to 2kHz @ 12-Bit Resolution
- Up to 4kHz @ 11-Bit Resolution
- PWM to Mixed-26kHz:
- Up to 2kHz @ 12-Bit Resolution
- Up to 4kHz @ 11-Bit Resolution
- Up to 8kHz @ 10-Bit Resolution
- Programmable LED Current, Switching Frequency, and Dimming Mode via I2C Interface
- Switching Frequency: 100kHz to 1.6MHz
- Advanced Switching Slew Rate Control
- Flexible Boost Converter Compensation (Internal/External)
- Programmable PFM Mode with User-Defined Frequency Scaling
- Programmable Fade-In/Fade-Out Timing
- Embedded Memory with MTP
- Protections:
- LED String Open, LED OVP and Short Protection
- Cycle-by-Cycle Over-Current Protection
- Programmable Output Over-Voltage Protection (Default 36V)
- Programmable Over-Temperature Protection
- Available in Green TQFN-3.5×3.5-20L and TQFN-3×3-24L Packages
LED Backlight for Tablet and Notebook
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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM37601YTRL20G/TR | Active | TQFN-3.5×3.5-20L | 20 | YES | YES | YES | YES | MSL2 | -40℃ to +85℃ | View | View | |||
SGM37601YTWY24G/TR | Active | TQFN-3×3-24L | 24 | YES | YES | YES | YES | MSL1 | -40℃ to +85℃ | View | View |
* 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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