TPS40170-Q1
- New, similar products available:
- Qualified for automotive applications
- AEC-Q100 qualified with the following results
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level 1C
- Device CDM ESD classification level C4B
- Wide-input voltage range from 4.5 V to 60 V
- 600-mV reference voltage with 1% accuracy
- Programmable UVLO and hysteresis
- Voltage-mode control with voltage feed-forward
- Programmable frequency between 100 kHz and 600 kHz
- Bidirectional frequency synchronization with primary and secondary option
- Low-side FET sensing overcurrent protection and high-side fet sensing short-circuit protection with integrated thermal compensation
- Programmable closed-loop soft start
- Supports pre-biased outputs
- Thermal shutdown at 165°C with hysteresis
- Voltage tracking
- Power good
- ENABLE with 1-µA low-current shutdown
- 8-V and 3.3-V LDO output
- Integrated bootstrap diode
- 20-pin 4.5-mm × 3.5-mm VQFN (RGY) package
The TPS40170-Q1 device is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power-density, high-reliability dc-dc converter applications. The controller implements voltage-mode control with input-voltage feed-forward compensation that enables instant response to an input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.
The TPS40170-Q1 device has a complete set of system protection and monitoring features such as programmable UVLO, programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET, and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1-µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output-voltage tracking, and adaptive dead-time control.
The TPS40170-Q1 device provides accurate output-voltage regulation within 1% accuracy. Additionally, the controller implements a novel scheme of bidirectional synchronization with one controller acting as the primary and other downstream controllers acting as secondaries, synchronized to the primary in-phase or 180° out-of-phase. Secondary controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.
New products (LM5145-Q1 and LM5146-Q1) offer reduced BOM cost, higher efficiency, and reduced design size among many other features.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS40170-Q1 Automotive 4.5-V to 60-V, Wide-Input, Synchronous PWM Buck Controller datasheet (Rev. C) | PDF | HTML | 2023/11/3 | ||
| 選擇指南 | Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) | 2021/4/15 | ||||
| 白皮書 | An overview of radiated EMI specifications for power supplies | 2018/6/5 | ||||
| 白皮書 | An overview of conducted EMI specifications for power supplies | 2018/2/1 | ||||
| Application brief | Improve DC/DC Regulator EMI for Free with Optimized Power Stage Layout | 2017/11/13 |
設計與開發
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PMP30101 — TPS40170 車用 5V 預穩壓器參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGY) | 20 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。