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NCV494BDR2
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Product Detailed Parameters
- Description：IC REG CTRLR BCK/PSH-PULL 16SOIC
- Series：SWITCHMODE™
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Down, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck, Push-Pull
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：7V ~ 40V
- Frequency - Switching：40kHz
- Duty Cycle (Max)：48%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Dead Time Control, Frequency Control
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The NCV494BDR2 is a voltage-mode PWM controller designed for automotive applications, operating within a supply voltage range of 7 V to 40 V with a nominal input of 15 V. It utilizes pulse width modulation technology in a push-pull topology, featuring two outputs and a fixed switching frequency of 200 kHz. The device supports a maximum duty cycle of 48% and provides an output current capability of 500 mA. It operates reliably across a temperature range from -40 °C to +125 °C and is housed in a 16-lead SOIC package.
Feature Summary
- Automotive-grade qualification ensuring reliability under harsh environmental conditions
- Voltage-mode control architecture for stable power supply regulation
- Push-pull topology configuration suitable for isolated DC-DC conversion
Applications
- Automotive DC-DC converter designs
- Switchmode power supply control circuits
- Isolated power conversion systems
Procurement Notes
Verify the specific suffix 'R2' indicates tape-and-reel packaging when ordering. Confirm that the component meets AEC-Q100 standards required for your specific automotive application tier. Ensure the lead-free status aligns with your assembly process requirements. Cross-reference the datasheet revision date to confirm compatibility with your design specifications before finalizing procurement.
Selection Notes
Select this component for applications requiring robust automotive-grade performance with a fixed 200 kHz switching frequency. It is appropriate for designs needing voltage-mode control with a maximum duty cycle limit of 48%. Consider the 16-pin SOIC package constraints for PCB layout. Evaluate the 7 V to 40 V input range against your system's power rail variations to ensure proper operation.
Part Context
This part belongs to the NCV494 series, which are automotive versions of standard PWM controllers. It shares functional similarities with the TL494 but includes enhanced features and qualifications for automotive environments. The series is categorized under power management ICs, specifically focusing on switching controllers for efficient energy conversion in vehicle electronics.
Replacement Considerations
The NCV494BDR2 serves as an automotive-qualified alternative to the commercial TL494. Verify pinout compatibility if substituting directly. Check thermal performance differences between commercial and automotive grades. Ensure the replacement meets the same AEC-Q100 reliability standards required for the original design.
