NCP347MTAHTBG ON Semiconductor Integrated Circuit (Other) In Stock
ON Semiconductor NCP347MTAHTBG is a positive overvoltage protection controller with an integrated low-RON NMOS FET and status flag output, protecting sensitive loads in single-channel battery management and power-supply designs from overvoltage faults.
- Manufacturer
- ON Semiconductor
- Package
- Other
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- NCP347MTAHTBG Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1950(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated low-RON NMOS FET eliminates the need for an external protection transistor, reducing BOM count and board area in overvoltage protection circuits
- Status FLAG output provides real-time fault signaling to a host microcontroller, enabling firmware-controlled power sequencing and fault logging in battery management systems
- Fixed overvoltage threshold (non-adjustable) simplifies design by removing external resistor dividers, with RoHS-compliant (e3) lead-free DFN-10 (R-PDSO-N10) packaging for modern PCB assembly
Applications
The NCP347MTAHTBG is used in lithium-ion battery protection circuits, USB power delivery adapters, and automotive-adjacent 12 V battery charger designs where a single-channel overvoltage fault controller must disconnect the load within microseconds of detecting an overvoltage condition. Its integrated NMOS FET keeps the voltage drop below 50 mV at typical load currents, preserving efficiency in portable and wearable power paths. The status flag pin allows a system MCU to log overvoltage events and safely restart the power rail after the fault clears.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | 516AA |
| Factory Lead Time | 4Weeks |
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | INPUT FAULT PROTECTION CONTROLLER |
| JESD-30 Code | R-PDSO-N10 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.08,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.25mA |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 1.2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes the NCP347MTAHTBG suitable for single-cell lithium-ion battery overvoltage protection?
The NCP347MTAHTBG integrates a low-RON NMOS FET that disconnects the load within microseconds when the input exceeds the fixed overvoltage threshold, protecting single-cell Li-ion battery packs rated at 3.6 V to 4.2 V. The internal FET typically has an on-resistance below 100 milliohms, keeping conduction losses under 50 mW at 500 mA continuous load current.
How does the STATUS FLAG output of the NCP347MTAHTBG help in a managed power supply design?
The open-drain STATUS FLAG output pulls low when an overvoltage event is detected, allowing a host microcontroller to read the fault condition on a GPIO input with a 10 kilohm pull-up to 3.3 V. This enables firmware to log the fault timestamp, delay restart, or trigger an alert LED, without requiring an external comparator or voltage supervisor IC in the design.
What package does the NCP347MTAHTBG use, and how does it affect thermal management?
The NCP347MTAHTBG is housed in a 10-lead WDFN (R-PDSO-N10) package with an exposed thermal pad, measuring approximately 3 x 3 mm. The exposed pad provides a thermal resistance to the PCB of approximately 40°C/W, allowing the device to dissipate up to 500 mW continuously at 85°C ambient without requiring additional heat sink area in typical applications.
In what ways does the NCP347MTAHTBG reduce BOM complexity compared to discrete overvoltage protection circuits?
By integrating the protection NMOS FET, overvoltage comparator, and status flag driver into a single 10-pin package, the NCP347MTAHTBG replaces at least 4 discrete components (FET, comparator, voltage reference, and gate drive resistors), reducing the external component count to a bypass capacitor and pull-up resistor while shrinking the protection circuit footprint to under 10 mm² on the PCB.
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About ON Semiconductor
ON Semiconductor (onsemi) provides intelligent power and sensing technologies for automotive, industrial, IoT, and cloud infrastructure applications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0000 | $1.00 |
| 84+ | $0.6000 | $50.40 |
| 121+ | $0.3000 | $36.30 |
| 250+ | $0.2400 | $60.00 |
| 500+ | $0.2100 | $105.00 |
| 1000+ | $0.1950 | $195.00 |
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