LM7310
- Wide operating input voltage range: 2.7 V to 23 V
- 28-V absolute maximum
- Withstands negative voltages up to -15 V
- Integrated back-to-back FETs with low On-Resistance: RON = 28.4 mΩ (typ)
- Ideal diode operation with true reverse current blocking
- Fast overvoltage protection
-
1.2-µs (typ) response time
- Adjustable overvoltage lockout (OVLO)
-
- Fast-trip response to transient overcurrents during
steady state
- 500-ns (typ) response time
- Latch-off after fault
- Analog load current monitor output (IMON)
- Current range: 0.5 A to 5.5 A
- Accuracy: ±15% (max) (IOUT ≥ 1 A)
- Active high enable input with adjustable undervoltage lockout threshold (UVLO)
- Adjustable output slew rate control (dVdt)
- Overtemperature protection
- Power Good indication (PG) with adjustable threshold (PGTH)
- Small footprint: QFN 2 mm x 2 mm, 0.45-mm pitch
The LM73100 is a highly integrated circuit protection and power management solution in a small package. The device provides multiple protection modes using very few external components and is a robust defense against voltage surges, reverse polarity, reverse current and excessive inrush current.
With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the device well suited for power MUX/ORing applications. The device uses linear ORing based scheme to ensure almost zero DC reverse current and emulates ideal diode behavior with minimum forward voltage drop and power dissipation.
Applications with particular inrush current requirements can set the output slew rate with a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The device also provides fast trip response to transient overcurrent events during steady state.
The device provides an accurate sense of the output load current on the analog current monitor pin.
The device is available in a 2-mm x 2-mm, 10-pin HotRod QFN package for improved thermal performance and reduced system footprint.
The device is characterized for operation over a junction temperature range of –40°C to +125°C.
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 | LM73100, 2.7 - 23 V, 5.5 A Integrated Ideal Diode with Input Reverse Polarity and Overvoltage Protection datasheet (Rev. A) | PDF | HTML | 2020/12/15 | ||
| 應用說明 | Basics of Power MUX (Rev. A) | PDF | HTML | 2020/10/20 | |||
| Application brief | Fast Role Swap, Linear ORing with TPS25947 and LM73100 in USB-Type C Systems (Rev. A) | PDF | HTML | 2020/10/7 |
設計與開發
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LM73100EVM — LM73100 整合式理想二極體評估模組
SNOR027 — LM73100 Design Calculator
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RPW) | 10 | Ultra Librarian |
訂購與品質
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