TPS92512
- Integrated 200-mΩ High-Side MOSFET
- 4.5-V to 42-V Input Voltage Range
(4.5 V to 60 V for the TPS92512HV) - 0 V to 300 mV Adjustable Voltage Reference
- ±5% LED Current Accuracy
- 100-kHz to 2-MHz Switching Frequency Range
- Dedicated PWM Dimming Input
- Adjustable Undervoltage-Lock-Out
- Overcurrent Protection
- Overtemperature Protection
- MSOP-10 Package with PowerPAD
The TPS92512/HV are 2.5A step-down (buck) current regulators with an integrated MOSFET to drive high current LEDs. Available with 42 V and 60 V (HV) input ranges, these LED drivers operate at a user selected fixed-frequency with peak-current mode control and deliver excellent line and load regulation.
The TPS92512/HV LED drivers feature separate inputs for analog and pulse width modulation (PWM) dimming for no compromise brightness control achieving contrast ratios of greater than 10:1 and greater than 100:1, respectively. The PWM input is compatible with low-voltage logic standards for easy interface to a broad range of microcontrollers. The analog LED current setpoint is adjustable from 0 V to 300 mV using the IADJ input with an external 0 V to 1.8 V signal.
For multi-string applications using two or more TPS92512/HV LED drivers, the internal oscillator can be overdriven by an external clock ensuring all of the converters operate at a common frequency thereby reducing the potential for beat frequencies and simplifying system EMI filtering. An adjustable input under-voltage lockout (UVLO) with hysteresis provides flexibility in setting start/stop voltages based upon supply voltage conditions.
The TPS92512 includes cycle-by-cycle overcurrent protection and thermal shutdown protection. It is available in a 10-pin HVSSOP PowerPAD™ package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS92512 2.5A Buck LED Driver with Integrated Analog Current Adjust datasheet (Rev. B) | PDF | HTML | 2015年 4月 20日 |
White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
Technical article | Designing an IoT modular light – part 2 | PDF | HTML | 2016年 6月 24日 | |
Technical article | Designing an IoT modular light | PDF | HTML | 2016年 6月 17日 | |
Technical article | Driving LEDs with both analog and PWM dimming | PDF | HTML | 2015年 10月 13日 | |
Technical article | Driving LEDs in battery-powered portable projectors | PDF | HTML | 2015年 8月 25日 | |
EVM User's guide | TPS92512EVM-001 High-Current Buck Regulator With Analog and PWM Dimming for Hi (Rev. A) | 2015年 7月 14日 |
設計與開發
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TPS92512EVM-001 — 具有類比和 PWM 調光的 TPS92512 降壓穩壓器
The TPS92512EVM is designed to accept an input voltage range of 12V to 60V and drive high current LED stacks at up to 1.5A while providing a small form factor. The LED stack can be between 9V and 24V depending on the input voltage range. The circuit can be dimmed using an analog current adjust (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
HVSSOP (DGQ) | 10 | Ultra Librarian |
訂購與品質
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- 材料內容
- 認證摘要
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