TPS65921
- Three Step-Down
Converters:
- Up to 1.2 A of Output Current for
VDD1
- TPS65921B Supports VDD1 up to 1.2 A
- TPS65921B1 Supports VDD1 up to 1.4 A (Necessary for 1-GHz Operation)
- SmartReflex Dynamic Voltage Management
- 3.2-MHz Fixed Frequency Operation
- VIN Range from 2.7 to 4.5 V
- Typical 30 µA Quiescent per Converter
- Up to 1.2 A of Output Current for
VDD1
- Four General-Purpose Configurable LDOs:
- Dynamic Voltage Scaling
- 220-mA Maximum Current for One LDO
- VIN Range from 2.7 to 4.5 V
- 2 LDOs With Low Noise and High PSRR
- RTC With Alarm Wake-Up Mechanism
- Clock Management
- 32-kHz Crystal Oscillator
- Clock Slicer for 26, 19.2, and 38.4 MHz
- HF Clock Output Buffer
- USB:
- USB HS 2.0 Transceiver
- USB 1.3 OTG-Compliant
- 12-Bit ULPI 1.1 Interface
- USB Power Supply (5-V CP for VBUS)
- Control
- High-Speed I2C Interface
- All Resource Configurable by I2C
- Keypad Interface up to 8 × 8
- 10-Bit A/D Converter
- Hot-Die, Thermal Shutdown Protection
- µ*BGA 120 Balls ZQZ
The TPS65921 device is a highly integrated power-management circuit (IC) that supports the power and peripheral requirements of the OMAP application processors. The device contains power management, a universal serial bus (USB) high-speed (HS) transceiver, an analog-to-digital converter (ADC), a real-time clock (RTC), a keypad interface, and an embedded power control (EPC). The power portion of the device contains three buck converters, two controllable by a dedicated SmartReflex class-3 interface, multiple low-dropout (LDO) regulators, an EPC to manage the power-sequencing requirements of OMAP, and an RTC module. The USB module provides an HS 2.0 transceiver suitable for direct connection to the OMAP universal transceiver macrocell interface (UTMI) + low pin interface (ULPI) with an integrated charge pump (CP).
The device also provides auxiliary modules: ADC, keypad interface, and general-purpose inputs/outputs (GPIOs) muxed with the JTAG functions. The keypad interface implements a built-in scanning algorithm to decode hardware-based key presses and to reduce software use, with multiple additional GPIOs that can be used as interrupts when they are configured as inputs.
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 | TPS65921 Power Management and USB Single Chip datasheet (Rev. G) | PDF | HTML | 2014/9/29 | ||
| * | 使用指南 | Differences in Features for TPS65920 and TPS65921 (Rev. B) | 2010/12/17 | |||
| * | 勘誤表 | TPS65921 Silicon Errata | 2010/9/8 | |||
| 使用指南 | IPM MicroStar BGA Discontinued and Redesigned | 2020/11/3 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 使用指南 | TPS65921 Register Manual (Rev. C) | 2012/3/15 | ||||
| 應用說明 | TPS65921 PCB Layout Guidelines (Rev. A) | 2012/3/15 | ||||
| 應用說明 | Using Power IC for OMAP34xx to 36xx Family | 2011/1/24 | ||||
| 應用說明 | TPS65950/930/920/921 USB Eye Diagram Trimming | 2010/11/19 | ||||
| 應用說明 | TPS65921 USB Charger Detection | 2010/11/17 |
設計與開發
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TWL4030SW-LINUX — 適用於 TWL4030 的 Linux 驅動程式
The Linux driver supports the TWL4030 series of Integrated Power Management ICs. The Linux driver supports communication through the I2C bus and interfaces with various sub-systems.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- twl4030
- (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| JRBGA (ZQZ) | 120 | Ultra Librarian |
| NFBGA (ZBH) | 120 | Ultra Librarian |