TPS922152
- 4.5V to 15V input voltage range
- Wide application voltage up to 500V
- LED common anode connection
- Adjustable switching frequency: 50kHz ~ 1MHz
- Adative Off-Time mode
- Advanced dimming options:
- Analog dimming (1000:1)
- PWM dimming (50ns pulse width, 1000:1 @ 20kHz)
- Flexible dimming (100,000:1)
- Low standby current
- Full protection features:
- LED open and short protection
- Cycle-by-cycle current limit
- Sense resistor open and short protection
- Package: SOIC-8 and SOT583
The TPS922152 is non-synchronous Average-Current control Buck LED drivers with 4.5V to 500V wide application voltage range. The TPS922152 is capable of driving external switching FETs at adjustable switching frequency up to 1MHz with Adative Off-Time (AOT) mode. The AOT mode allows low LED current ripple and fast transient response with small output capacitor. The device also supports single layer PCB design and common anode connection.
The TPS922152 supports high-accuracy and high-ratio analog dimming by configuring analog signals through the ADIM input pins. The full-scale output current is configured by an external resistor and high analog dimming ratio is achievable by the unique corrective sensing. The device also supports high-frequency and high-ratio PWM dimming by configuring simple high and low signals through the PDIM input pins. High-accuracy and high-ratio of PWM dimming is achievable by the unique inductive fast dimming (IFD).
The TPS922152 also provides multiple systematic protections, including LED open and short, sense resistor open and short.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TPS922152 Average-Current Buck LED Driver with Wide Range Dimming datasheet | PDF | HTML | 2026年 3月 17日 |
設計與開發
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TPS922152EVM — TPS922152 評估模組
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
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