TPS7B7701-Q1
- 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 2
- Device CDM ESD Classification C4B
- Single and Dual-Channel LDO With Current Sense and Adjustable Current-Limit
- 4.5-V to 40-V Wide Input Voltage Range, 45-V Load Dump
- Power Switch Mode When Tying FB to GND
- 1.5-V to 20-V Adjustable Output Voltage
- Up to 300-mA Output Current per Channel
- Adjustable Current-Limit With External Resistor
- High Accuracy Current-Sense to Detect Antenna Open Condition at Low Current Without Further Calibration
- High Power-Supply Rejection Ratio: Typical 73 dB at 100 Hz
- Integrated Reverse-Polarity Protection, Down to –40 V and No Need for External Diode
- 500-mV Max Dropout Voltage at 100-mA Load
- Stable With Output Capacitor in 2.2-µF to 100-µF Range (ESR 1 mΩ to 5 Ω)
- Integrated Protection and Diagnostics
- Thermal Shutdown
- Undervoltage Lockout (UVLO)
- Short-Circuit Protection
- Reverse Battery Polarity Protection
- Reverse-Current Protection
- Output Short-to-Battery Protection
- Output Inductive Load Clamp
- Multiplexing Current Sense Between Channels and Devices
- Ability to Distinguish All Faults With Current Sense
- 16-Pin HTSSOP PowerPAD™ Package
The TPS7B770x-Q1 family of devices feature a single and dual, high-voltage low-dropout regulator (LDO) with current sensing, designed to operate with a wide input-voltage range from 4.5 V to 40 V (45-V load dump protection). These devices provide power to the low-noise amplifiers of the active antenna through a coax cable with 300 mA per channel current. Each channel also provides an adjustable output voltage from 1.5 V to 20 V.
These devices provide diagnostics through the current sense and error pins. To monitor the load current, a high-side current-sense circuitry provides a proportional analog output to the sensed load current. The accurate current sense allows detection of open, normal, and short-circuit conditions without the need for further calibration. Current sense can be multiplexed between channels and devices to save analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limit with an external resistor.
An integrated reverse polarity diode eliminates the need for an external diode. These devices feature standard thermal shutdown, short-to-battery protection on the output, and reverse current protection. Each channel has internal inductive clamp protection on the output during inductive switch off.
These devices operate over a –40°C to +125°C ambient temperature range.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TPS7B770x-Q1, Automotive, Single- and Dual-Channel Antenna LDO With Current Sense datasheet (Rev. C) | PDF | HTML | 2018年 9月 12日 |
| Functional safety information | TPS7B770x-Q1 Functional Safety FIT Rate, FMD, and Pin FMA (Rev. A) | PDF | HTML | 2024年 8月 2日 | |
| More literature | Fundamentals of designing with LDOs in auto battery direct connect applications | 2017年 2月 27日 |
設計與開發
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TPS7B7702EVM — TPS7B7702-Q1 雙通道天線 LDO 線性穩壓器評估模組
TPS7B7702EVM 評估模組 (EVM) 可協助設計師評估 TPS7B7702QPWPRQ1 天線 LDO 的運作和性能。TPS7B7702-Q1 是採用 HTSSOP 封裝且具有電流感測功能的單體整合式雙通道 LDO。此裝置的設計旨在為汽車環境中的主動式天線供應電源。此裝置具備過載、過熱，電池極性反接、反向電流，以及電池或接地輸出短路等整合式防護。此裝置支援高達 VIN = 45V 的供應電壓，以及每個通道高達 300mA 的負載。此裝置的高準確度電流感測可偵測開路、正常及短路天線狀況，無須在低電流下進一步校準。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 16 | Ultra Librarian |
訂購與品質
- 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
- 進行中的可靠性監測
- 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。