The SGM37410 is an asynchronous Boost WLED driver with high efficiency, low EMI and high output voltage. The Boost converter integrates a 42V, 3A internal FET which operates at 1.1MHz switching frequency. Its strong driving ability can drive single or multiple parallel LED strings for 700mA maximum total LED current, which can be used as LED driver for smart phone and tablet backlight.
The default LED current can be programmed by the external current-sense resistor RSET. By varying the duty cycle of the PWM signal applied to the CTRL pin, the internal reference voltage is adjusted, which ultimately adjusts the LED sink current. With full PWM duty cycle, the internal reference voltage VREF is 200mV (TYP). The SGM37410 is essentially a driver that adopts analog dimming control, and it will not produce audible noise on the output capacitor. The SGM37410 provides excellent line regulation and load regulation, as well as excellent load transient response. The SGM37410 also features various protection functions such as open LED protection, OCP protection and thermal shutdown protection.
The SGM37410 is available in Green SOT-23-5 and TSOT-23-5 packages.
- Input Voltage Range: 2.7V to 5.5V
- 1:500 Stable Luminance Dimming
- Improved PSRR for Waveless Lighting
- Up to 90% Efficiency
- Switching Frequency: 1.1MHz
- Integrated 42V/3A Switch
- Feedback Voltage: 200mV
- PWM Dimming Control
- 40V Open LED Protection for 12 LEDs in Series
- Automatic Soft-Start for Reduced Inrush Current
- Under-Voltage Lockout Protection
- Thermal Shutdown
- -40℃ to +125℃ Operating Temperature Range
- Available in Green SOT-23-5 and TSOT-23-5 Packages
Portable Devices Backlight
Small and Medium Size White LCD Display Backlight
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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM37410XN5G/TR | Active | SOT-23-5 | 5 | YES | YES | YES | YES | MSL1 | -40℃ to +125℃ | View | View | |||
SGM37410XTN5G/TR | Active | TSOT-23-5 | 5 | YES | YES | YES | YES | MSL3 | -40℃ to +125℃ | View | View | 1-24 units : $0.35/unit 25-99 units : $0.3/unit 100-249 units : $0.25/unit 250-499 units : $0.2/unit 500-999 units : $0.175/unit 1000-9999 units : $0.13/unit |
* 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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