Overview
The Texas Instruments DCR010503U is a high-efficiency, input-isolated, output-regulated DC/DC converter. This device is part of the DCR01 family, which offers 1-W nominal, galvanically-isolated output power capability. It features very low output noise, thermal protection, and high accuracy, making it suitable for a wide range of applications requiring signal path isolation.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 28-SOIC (0.295, 7.50mm Width), 12 Leads |
| Number of Pins | 12 |
| Operating Temperature Range | -40°C to 85°C |
| Switching Frequency | 400 kHz (typical), 880 kHz (external synchronization) |
| Input Voltage | 5 V, 12 V, or 24 V |
| Output Voltage | 3.3 V or 5 V |
| Output Current | 300 mA |
| Output Power | 1 W |
| Isolation Voltage | 1 kV (operational): 1-second test |
| Quiescent Current | 24 mA |
| Control Features | Enable (Active High), Error Flag, Synchronization Input |
| Protections | Short-circuit protection, Thermal protection |
Key Features
- 1-kV isolation (operational): 1-second test
- Continuous voltage applied across isolation barrier: 60 VDC, 42.5 VAC
- UL1950 recognized component
- Available in 10-pin PDIP and 12-pin SOP packages
- Device-to-device synchronization
- High efficiency
- Low output noise
- Thermal protection
- Short-circuit protection
- Remote On/Off, Over-Temperature Protection (OTP), Short-Circuit Protection (SCP)
Applications
- Point-of-use power conversion
- Digital interface power
- Ground loop elimination
- Power-supply noise reduction
- Any application requiring signal path isolation
Q & A
- What is the maximum output power of the DCR010503U?
The maximum output power is 1 W.
- What are the available output voltages for the DCR010503U?
The output voltages are 3.3 V or 5 V.
- What is the switching frequency of the DCR010503U?
The typical switching frequency is 400 kHz, but it can be externally synchronized up to 880 kHz.
- What kind of protections does the DCR010503U have?
The device features short-circuit protection and thermal protection.
- What is the isolation voltage of the DCR010503U?
The isolation voltage is 1 kV (operational): 1-second test.
- What are the operating temperature ranges for the DCR010503U?
The operating temperature range is -40°C to 85°C.
- Is the DCR010503U RoHS compliant?
- What is the quiescent current of the DCR010503U?
The quiescent current is 24 mA.
- Can the DCR010503U be used for safety isolation circuits?
No, it must not be used as part of a safety isolation circuit requiring reinforced isolation.
- What are the control features of the DCR010503U?
The control features include Enable (Active High), Error Flag, and Synchronization Input.
