SGM37602

アクティブ

6-Channel 43V Boost WLED Driver with High Efficiency and Accuracy

SGM37602.pdf

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.

特性

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

アプリケーション

Notebook Computer Display Backlight
UMPC Display Backlight

注文書

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	アクティブ	TQFN-3×3-20DL	20	YES	YES	YES	YES	MSL3	-40℃ to +85℃	閲覧	閲覧

* 再販価格は参考価格です。正式な見積もりについては、代理店にお問い合わせください。

** 提供されるリードタイムは参考情報であり、異なる状況に応じて変更される可能性があります。