The SGM37602 is a high-performance white LED driver meticulously designed for LCD panels that utilize LED arrays as backlighting source. The SGM37602 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 SGM37602 equips six internal current sinks for 1% current matching, ensuring superior brightness uniformity across LED strings.
The device integrates PWM and mixed dimming mode for precise LED current regulation. The range of the PWM signal dimming frequency is from 100Hz to 20kHz. The configuration range of maximum LED current per string is from 5mA to 50mA. Moreover, the LED current and brightness can be further adjusted by the duty cycle of the PWM signal. In PWM dimming mode, the voltage-holding method of the unique current sink ensures excellent LED current accuracy and matching, even at extremely low duty cycles.
The SGM37602 features a 2.7V to 24V input voltage range. An internal 43V power switch with 180mΩ RDSON, combined with peak current mode control, provides high efficiency performance and cycle-by-cycle over-current protection.
The SGM37602 is available in a Green TQFN-3×3- 20DL package.
- Wide Input Voltage: 2.7V to 24V
- High Output Voltage: up to 43V
- Programmable LED Current (100% PWM Duty Cycle): 5mA to 50mA per Channel
- LED Current Matching: ±1%
- Typical LED Current Accuracy: ±2.5%
- Dimming Controls
- Direct PWM Dimming
- Mixed Dimming
- Up to 12-Bit Resolution in DC Dimming of Mixed Mode
- Built-In Soft-Start Function
- LED Disconnection in Shutdown
- Protection
- LED Open and Short Protection
- Cycle-by-Cycle Over-Current Protection
- Programmable Over-Voltage Protection
- Over-Temperature Protection
- Available in a Green TQFN-3×3-20DL Package
Notebook Computer Display Backlight
UMPC 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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM37602YTWW20G/TR | Active | TQFN-3×3-20DL | 20 | YES | YES | YES | YES | MSL3 | -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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