LM7310
28-mΩ-/5,5-A-Lastschalter für 2,7 V bis 23 V mit integrierter idealer Diode und Überspannungsschutz
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.
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | LM73100, 2.7 - 23 V, 5.5 A Integrated Ideal Diode with Input Reverse Polarity and Overvoltage Protection datasheet (Rev. A) | PDF | HTML | 15 Dez 2020 |
EVM User's guide | LM73100 Integrated Ideal Diode Evaluation Module (Rev. A) | PDF | HTML | 14 Dez 2020 | |
Application note | Basics of Power MUX (Rev. A) | PDF | HTML | 20 Okt 2020 | |
Application brief | Fast Role Swap, Linear ORing with TPS25947 and LM73100 in USB-Type C Systems (Rev. A) | PDF | HTML | 07 Okt 2020 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LM73100EVM — LM73100 integriertes ideales Dioden-Evaluierungsmodul
LM7310 PSpice Unencrypted Transient Model (Rev. A)
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
VQFN-HR (RPW) | 10 | Ultra Librarian |
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