LP87702
- FMEDA and Functional Safety Manual Available to Support System-Level Functional Safety Requirements up to SIL-2 (IEC 61508)
- Two High-Efficiency Step-Down DC/DC converters:
- Maximum Output Current 3.5 A
- 2-MHz, 3-MHz, or 4-MHz Switching Frequency
- Auto PWM/PFM and Forced-PWM Operations
- Output Voltage = 0.7 V to 3.36 V
- 5-V 600 mA Boost Converter
- Two Inputs for External Voltage Monitoring
- Two Programmable Power-Good Signals
- Dedicated Reference Voltage for Diagnostics
- Window Watchdog with Reset Output
- External Clock Input to Synchronize Switching
- Spread-Spectrum Modulation
- Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
- Configurable General Purpose Outputs (GPOs)
- I2C-Compatible Interface
- Interrupt Function with Programmable Masking
- Output Short-Circuit and Overload Protection
- Overtemperature Warning and Protection
- Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
The LP87702 contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog.
The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters.
This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number is found in the technical reference manual.
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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LP87702 Dual Buck Converter and 5-V Boost With Diagnostic Functions datasheet | PDF | HTML | 2021年 3月 24日 |
| Technical article | Improving industrial radar RF performance with low-noise, thermal-optimized power | PDF | HTML | 2021年 4月 21日 | |
| User guide | LP87702K Technical Reference Manual | 2020年 6月 6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
LP8770Q1EVM — 具有診斷功能且適用於 LP8770-Q1 升壓及雙降壓穩壓器的評估模組
The LP8770Q1EVM is designed to meet the power management requirements of the latest processor and platform needs in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and general purpose digital output signal. The device is (...)
使用指南: PDF
計算工具
PEET-GUI — PMIC 效率評估器工具 (PEET)
The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
參考設計
TIDEP-01025 — mmWave 診斷和監控參考設計
此參考設計展示了 mmWave 雷達感測器中內建自動監控功能，此功能可透過降低主機上的處理負載來提高系統效率。此設計使用安全診斷資料庫 (SDL)，以對可編程數位核心、周邊設備和記憶體執行診斷測試。此參考設計也會配置並啟用不同硬體元件的 RF/類比監控功能。此設計藉由協助使用者利用各種安全資源實作符合 ASIL-B/SIL2 標準的產品，可減少整體開發時間和上市時間。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
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。