Datasheet Texas Instruments LM36923H — 数据表
制造商 | Texas Instruments |
系列 | LM36923H |
高效三串白色LED驱动器
数据表
LM36923H Highly Efficient Triple-String White LED Driver datasheet
PDF, 2.0 Mb, 修订版: B, 档案已发布: Oct 7, 2016
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价格
状态
LM36923HYFFR | |
---|---|
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes |
打包
LM36923HYFFR | |
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N | 1 |
Pin | 12 |
Package Type | YFF |
Industry STD Term | DSBGA |
JEDEC Code | R-XBGA-N |
Package QTY | 3000 |
Carrier | LARGE T&R |
Device Marking | 36923H |
Width (mm) | 1.16 |
Length (mm) | 2 |
Thickness (mm) | 1.6 |
Pitch (mm) | .4 |
Max Height (mm) | .625 |
Mechanical Data | 下载 |
参数化
Parameters / Models | LM36923HYFFR |
---|---|
Number of Channels | 3 |
Duty Cycle(Max), % | 92 |
LED | 30 |
LED Current Per Channel, mA | 30 |
Operating Temperature Range, C | -40 to 85 |
Package Group | DSBGA |
Package Size: mm2:W x L, PKG | See datasheet (DSBGA) |
Peak Efficiency, % | 92 |
Rating | Catalog |
Shutdown Current(Typ), uA | 1.2 |
Special Features | Adjustable Switch Frequency,CABC,Direct PWM Dimming,Enable/Shutdown,I2C Control,OVP,Thermal Shutdown |
Switching Frequency(Max), kHz | 1050 |
Topology | Boost,Current Sink,Multi-Channel |
Type | Inductive |
Vin(Max), V | 5.5 |
Vin(Min), V | 2.5 |
Vout(Max), V | 37 |
生态计划
LM36923HYFFR | |
---|---|
RoHS | Compliant |
应用须知
- Auto-Frequency Mode Setting for Improved Boost Efficiency in White LED BacklightPDF, 252 Kb, 档案已发布: Oct 14, 2016
As the load current of a boost converter is reduced, the ratio of conduction losses to switching lossesbegins to lower. Conduction losses are losses that are a function of current. Switching losses are lossesthat are a function of switching frequency. As this ratio is reduced the boost switching losses begin todominate the total circuit losses. When this happens, the benefit of lowering the - Analog PWM Dimming in White-LED DriversPDF, 539 Kb, 档案已发布: Dec 21, 2016
Pulse-width modulation (PWM) is a common type of dimming used to adjust the current in white-LEDdriver devices. PWM dimming takes a rectangle waveform with variable positive duty cycle (D) and adjuststhe LED current proportionally. For many smaller format white LED drivers (7-inch screen size or smaller),the PWM signal is converted to a DC control voltage and made to drive the LED current in
模型线
系列: LM36923H (1)
制造商分类
- Semiconductors> Power Management> LED Driver> Backlight