Overview
The UCC12040DVER from Texas Instruments is a high-density, isolated DC/DC power module designed to provide efficient and well-regulated power to isolated circuits. It features a 3-kV RMS basic isolation rating, making it suitable for applications requiring robust isolation. The module integrates a transformer and DC/DC controller with a proprietary architecture, offering 500 mW of isolated power with low EMI. It is available in a 16-pin wide-body SOIC package with a low profile of 2.65 mm, enhancing its suitability for space-constrained designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 5.5 | V |
| Output Voltages (selectable) | 5.4, 5.0, 3.7, 3.3 | V |
| Output Power | 500 | mW |
| Peak Efficiency | 60% | % |
| Line Regulation (typical) | 1% | % |
| Load Regulation (typical) | 1.5% | % |
| Isolation Rating | 3 kV RMS | V |
| Surge Capability | 6.5 kV PK | V |
| Working Voltage | 850 V RMS | V |
| CMTI (typical) | ±100 V/ns | V/ns |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | 16-pin wide-body SOIC |
Key Features
- High-density DC/DC module with optimized integrated transformer technology
- Meets CISPR32 Class B EMI limits without ferrite beads on a 2-layer PCB
- Spread spectrum modulation (SSM) for reduced EMI
- Robust isolation barrier with 3 kV RMS isolation rating and 6.5 kV PK surge capability
- Short circuit recovery and thermal shutdown for increased system robustness
- Enable pin and synchronization capability for multiple device synchronization
- Regulated 5-V or 3.3-V output options with headroom
- Extended temperature range: –40°C to 125°C
- Safety-related certifications including UL, CQC, and DIN V VDE V 0884-11:2017-01
Applications
- PLC analog input & output modules
- Grid protection relays & smart breakers
- Medical patient monitors
- Isolated bias for digital isolators
- Isolated bias for RS-485/RS-422/CAN transceivers
- Isolated bias for voltage and current sensors
Q & A
- What is the isolation rating of the UCC12040DVER?
The UCC12040DVER has a 3 kV RMS basic isolation rating.
- What are the selectable output voltages for the UCC12040DVER?
The output voltages can be selected as 5.4 V, 5.0 V, 3.7 V, or 3.3 V.
- What is the maximum output power of the UCC12040DVER?
The maximum output power is 500 mW.
- Does the UCC12040DVER meet any specific EMI standards?
Yes, it meets CISPR32 Class B EMI limits without ferrite beads on a 2-layer PCB.
- What is the operating temperature range of the UCC12040DVER?
The operating temperature range is –40°C to 125°C.
- What safety certifications does the UCC12040DVER have?
It has certifications including UL, CQC, and DIN V VDE V 0884-11:2017-01.
- How does the UCC12040DVER handle short circuits and thermal issues?
The device features short circuit recovery and thermal shutdown for increased system robustness.
- Can the UCC12040DVER be synchronized with other devices?
Yes, it has an enable pin and synchronization capability for multiple device synchronization.
- What is the package type and size of the UCC12040DVER?
The device is packaged in a 16-pin wide-body SOIC with dimensions of 10.30 mm × 7.50 mm.
- What are some typical applications of the UCC12040DVER?
Typical applications include PLC modules, grid protection relays, medical patient monitors, and isolated bias for various transceivers and sensors.
