計算工具
TPS40400
- Input Operating Voltage Range: 3 V to 20 V
- PMBus Enabled Analog Controller
- Reference 600 mV ± 1%
- Remote Voltage Sense Amplifier
- Internal 6-V Regulator and 6-V Gate Drive
- Programmable Overcurrent Protection
- Inductor Resistance or Series Resistance Used for Current Sensing
- Programmable Switching Frequency: 200 kHz to 2 MHz
- Powergood Indicator
- Thermal Shutdown
- Programmable Soft-Start
- Internal Bootstrap Diode
- Prebias Output Safe
- 24-Pin QFN Package
The TPS40400 is a cost-optimized flexible synchronous buck controller that operates from a nominal 3-V to 20-V supply. This controller is an analog PWM controller that allows programming and monitoring through the PMBus™ interface. Flexible features found on this device include programmable soft-start time, programmable short circuit limit, and programmable undervoltage lockout (UVLO).
An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs. Gate drive voltage is 6 V to better enhance the power FETs for reduced losses. Short circuit detection occurs by sensing the voltage drop across the inductor or across a resistor placed in series with the inductor. A PMBus programmable threshold is compared to this voltage and is used to detect overcurrent. When the overcurrent threshold is reached, a pulse by pulse current limit scheme is used to limit the current to acceptable levels. If the overcurrent condition persists for more than 7 clock cycles of the converter, a fault condition is declared and the converter shuts down and goes into either a hiccup restart mode or latches off. The behavior can be selected through the PMBus interface. Other PMBus interface features include programmable operating frequency, soft-start time, overvoltage and undervoltage thresholds and the response to those events, output voltage change including margining as well as status monitoring.
技術文件
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS40400 3-V to 20-V PMBus Synchronous Buck Controller datasheet (Rev. D) | PDF | HTML | 2016年 11月 7日 |
| User guide | TPS40400 Buck Controller Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2022年 1月 3日 | |
| Analog Design Journal | Maximizing power density and thermal performance in power-module designs | 2018年 12月 12日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Selection guide | DC/DC Buck Controller Solutions Selection Guide | 2018年 2月 6日 | ||
| Application note | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016年 2月 22日 | ||
| Technical article | Select the correct PMBus POL solution for your application | PDF | HTML | 2015年 8月 3日 | |
| Analog Design Journal | 2Q 2012 Issue Analog Applications Journal | 2012年 4月 26日 | ||
| Analog Design Journal | Remote sensing for power supplies | 2012年 4月 26日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
TPS40400EVM-351 — 用於 TPS40400 PMBus 同步降壓控制器的評估模組
The TPS40400EVM-351 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS40400 PMBus Synchronous Buck Controller in a typical single output application. The EVM is designed to use a regulated 8Vdc to 14Vdc bus to produce a regulated output of 1.2Vdc at a maximum of (...)
應用軟體及架構
FUSION_DIGITAL_POWER_DESIGNER — 數位電源軟體
Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
驅動程式或資料庫
PMBUSSW-LINUX — 適用於 PMBUS 的 Linux 驅動程式
The Linux driver supports PMBus controlled Buck Controllers. The Linux driver supports communication through the PMBus and interfaces with the HWMon framework.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- tps40400
- tps40422
- tps544b20
- tps544b25
- (...)
模擬型號
TPS40400 Unencrypted PSpice Transient Model Package (Rev. A)
SLUM560A.ZIP (221 KB) - PSpice Model
參考設計
PMP11140 — 具有 PMBus 且可在 4A 下提供 1.8V 的 TPS40400 降壓穩壓器參考設計
PMP11140 is a single-phase switching regulator accepting an input range of 4.5V to 13.2V and providing an output voltage of 1.8V capable of supplying 4A of current. This reference design shows 1.8Vout, 4A (3A without a fan) for CPU I/O and other applications in a 22cm by 12.6cm single sided (...)
參考設計
PMP21440 — 比較：0.8V/8W GaN 與矽片電源供應參考設計
This reference design provides customers with a comparison study on the usage of GaN vs SI in power supply designs. This specific design uses TPS40400 controller to drive CSD87381 for the silicon power supply and LMG1210 with EPC2111 for the GaN power supply to provide 0.8V/10A. This design (...)
參考設計
PMP20084 — 0.9V/10A PMBus POL 電源參考設計
This reference design is a 3.3Vin to 0.9V @ 10A power supply in a small form-factor, cost-effective design. It uses the TPS40400 controller in conjunction with the CSD87381P (a high and low side FET IC). The TPS40400 features full PMBUS telemetry for enhanced monitoring and control. The (...)
參考設計
PMP20080 — 12V DC 輸入、混合式記憶體立方體 (HMC) 第 2 代電源參考設計
The PMP20080 is a powerful design intended to operate 5 output rails with application to a Hybrid Memory Cube (HMC) Gen2. This design uses 5 synchronous bucks with multiple different controllers to allow for a well regulated set of outputs. Also, PMP20080 allows for the configurability that comes (...)
參考設計
PMP10520 — Xilinx Virtex® UltraScale™ FPGA Multi-Gigabit 收發器 (MGT) 電源解決方案
The PMP10520 reference design provides all the power supply rails (1V/20A, 1.2V/30A, 1.8V/4A) necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Virtex® Ultrascale™ FPGAs. This design uses a 5V input and has a PMBus interface for current and voltage (...)
參考設計
PMP9475 — 具有 PMBus 的 Xilinx Virtex UltraScale FPGA 電源解決方案參考設計
The PMP9475 12V-input reference design provides all the power supply rails necessary to power Xilinx's Virtex® UltraScale™ family of FPGAs in a compact, highly efficient design. This design uses several of TI's PMBus Point-Of-Load voltage regulators for ease of (...)
參考設計
PMP9408 — 具有 PMBus 的 Xilinx Virtex Ultrascale FPGA Multi-Gigabit Transceiver (MGT) 電源參考設計
The PMP9408 reference design provides all the power supply rails necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Virtex® Ultrascale™ FPGAs. It utilizes a PMBus interface for current and voltage monitoring and meets Xilinx's low output voltage ripple (...)
參考設計
PMP9407 — 具有 PMBus 的 Xilinx Virtex Ultrascale FPGA Multi-Gigabit Transceiver (MGT) 電源參考設計
The PMP9407 reference design provides all the power supply rails necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Virtex® Ultrascale™ FPGAs. This design uses a 5V input and has a PMBus interface for current and voltage monitoring, margining, timing delays, and (...)
參考設計
PMP9463 — 適用於 Xilinx Ultrascale Kintex FPGA Multi-Gigabit 收發器 (MGT) 且具有 PMBus 的電源參考設計
The PMP9463 reference design provides all the power supply rails necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Ultrascale™ Kintex® FPGAs. It utilizes a PMBus interface for current and voltage monitoring and meets Xilinx's low output voltage ripple (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| VQFN (RHL) | 24 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點