TPS65386x-Q1 - Multirail Power Supply for Automotive PMIC
MPN： TPS65386x-Q1 ✓ 啟用中TPS65386x-Q1 概覽
What is a multirail power supply? A multirail power supply IC, or system basis chip (SBC), provides several regulated rails (e.g., 5V, 3.3V, 1.2V) and often includes monitoring, wake-up, and safety features. In automotive systems, such ICs power the main MCU and its associated analog and digital peripherals, ensuring stable operation under wide temperature and voltage variations. The TPS65386x-Q1 belongs to the power management IC hierarchy: PMIC -> system basis chip -> power supply.
Key features include a Power Good output (PGOOD) for rail monitoring, two configurable wake-up pins (WAKEx) for wake from external sources, integrated rotation-counter wake-up, and a low-power timer-based wake-up. These features enable low-power modes and fast transitions.
The device is designed to meet automotive safety requirements, making it suitable for ECUs, ADAS modules, and body control units. Its integrated protections and monitoring functions reduce external component count while maintaining safety integrity.
Typical applications include automotive engine control, transmission control, battery management, and central gateway modules. The TPS65386x-Q1 is also compatible with new-generation TI MCUs, allowing reference designs with TI's safety-relevant microcontrollers.
When designing with this device, careful attention must be paid to the PCB layout for thermal management, as the PowerPAD package requires proper soldering and copper pour to dissipate heat. The wake-up pins should be connected to appropriate sources to ensure robust wake functionality. For dynamic power management, the PGOOD signal can be used to enable downstream loads, ensuring proper sequencing.
直接替換替代品，適用於 TPS65386x-Q1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TPS65386x-Q1 （相同外形與佔位） — 差異在於 Package, Qualification.
TPS653861-Q1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TPS653860-Q1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TPS65381A-Q1
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TPS65381C-Q1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TPS65381-Q1
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
TPS65386x-Q1 最大額定值與電氣特性
| Product Type | Multirail Power Supply IC (PMIC) |
| 封裝 | 48-Pin HTSSOP PowerPAD |
| Qualification | AEC-Q100 qualified |
| 電源良好輸出 | Yes (PGOOD) |
| Wake-up Pins | 2 (WAKEx) |
| Integrated Rotation Counter Wake-up | Yes |
| Low-Power Timer Wake-up | Yes |
| 安裝類型 | Surface Mount |
TPS65386x-Q1 48-pin htssop powerpad 腳位配置指南
TPS65386x-Q1（48-pin htssop powerpad 封裝）的腳位配置。 此功率元件具有閘極、汲極與源極端子。對於非極性封裝，請參閱製造商資料表以取得確切的第 1 腳方向與佈局詳細資訊。常見應用包括電源設計、馬達驅動與負載切換。
無詳細腳位定義資料： TPS65386x-Q1.
請參閱 資料表 以查看完整腳位配置。
典型應用
TPS65386x-Q1 適用於 6 應用s: Engine Control Unit (ECU), ADAS Sensor Power, Body Control Module, Telematics Control Unit, Battery Management System, Smart Junction Box.
Engine Control Unit (ECU)
The TPS65386x-Q1 is an ideal power supply for automotive engine control units, integrating multiple regulated rails for the microcontroller and sensor interfaces. Its AEC-Q100 qualification ensures operation across wide temperature ranges, while the Power Good output enables proper sequencing of the ECU power-up sequence. The two configurable wake-up pins allow wake from ignition or CAN signals, supporting low-power idle modes. With a 48-pin HTSSOP PowerPAD package, it provides a compact, thermally efficient solution for ECU designs.
推薦
ADAS Sensor Power
The TPS65386x-Q1 delivers clean, regulated power to ADAS sensors such as radar, LiDAR, and camera modules. The AEC-Q100 qualification and robust power monitoring ensure reliable operation in safety-critical sensing applications. The wake-up pins enable sensor wake from external triggers, while the PGOOD signal indicates rail readiness for sensor initialization. Its multirail capability supports the diverse voltage requirements of advanced driver assistance systems.
推薦
Body Control Module
The TPS65386x-Q1 is well-suited for automotive body control modules managing body functions such as lighting, doors, and windows. It provides multiple regulated rails for the MCU and peripheral drivers, with PGOOD monitoring to ensure system integrity. The device's low-power timer wake-up enables efficient idle modes, reducing battery drain. The 48-pin HTSSOP PowerPAD package simplifies PCB design and thermal management in space-constrained body control applications.
推薦
Telematics Control Unit
Telematics control units require a reliable power supply for the application processor, communication modules, and sensors. The TPS65386x-Q1 provides multiple regulated rails with excellent transient response, supporting the varying power demands of telematics systems. Its AEC-Q100 qualification ensures reliability in automotive environments, while the wake-up pins allow remote wake via CAN or external signals. The PGOOD signal enables orderly shutdown and startup of the system.
推薦
Battery Management System
The TPS65386x-Q1 can be used in automotive battery management systems to provide stable power to the battery monitoring IC and communication interface. Its multirail outputs support the mixed voltage requirements of the BMS circuit. The AEC-Q100 qualification and monitoring functions enhance system safety. The wake-up pins enable the BMS to wake from low-power mode when the vehicle is started, while the PGOOD signal indicates that the BMS is ready for operation.
推薦
Smart Junction Box
Smart junction boxes distribute power to various loads in a vehicle, requiring efficient and reliable power management. The TPS65386x-Q1 supplies multiple regulated rails with precise voltage control for the MCU and load drivers. Its PGOOD output provides real-time monitoring of rail status, enabling diagnostics and fault detection. The two wake-up pins offer flexible wake options, supporting low-power modes in idle vehicles. This makes TPS65386x-Q1 an excellent choice for modern junction box designs.
推薦
推薦產品摘要
工程參考資料，適用於 TPS65386x-Q1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TPS653861-Q1 | TPS653860-Q1 | TPS65381A-Q1 | TPS65381C-Q1 | TPS65381-Q1 |
|---|---|---|---|---|---|---|
| Package | 48-Pin HTSSOP PowerPAD | 48-Pin HTSSOP PowerPAD | 48-Pin HTSSOP PowerPAD | 48-Pin HTSSOP PowerPAD | 48-Pin HTSSOP PowerPAD | 48-Pin HTSSOP PowerPAD |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
主要差異化特點
- Integrated PGOOD for rail monitoring (對比TPS65381A-Q1)
- Two configurable wake-up pins (對比TPS65381C-Q1)
- AEC-Q100 qualified (對比TPS65381-Q1)
設計說明
The 48-pin HTSSOP PowerPAD package requires proper soldering of the exposed pad to a large copper area for heat dissipation. In automotive environments, thermal resistance is critical; ensure adequate via stitching and a minimum of [DATA_NEEDED] square inches of copper. Without proper thermal design, the junction temperature may exceed limits under high load.
Route the power rails with wide traces to minimize voltage drops. Place decoupling capacitors close to the IC pins. The wake-up pins (WAKEx) should be routed with series resistors for ESD protection. Avoid routing high-speed signals near the power supply traces to reduce noise coupling.
Do not exceed the maximum input voltage. Ensure the enable and wake-up pins are correctly connected to avoid unintended wake events. Verify the PGOOD signal timing for proper system sequencing. Miswiring the wake-up pins can cause the device to be stuck in sleep mode or draw unexpected current.
合規資訊
AEC-Q100 qualification indicated by Q1 suffix. RoHS and other compliance status not found in verified data.
