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UC3845BD1R2G is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG CTRLR BOOST/FLYBACK 8SOIC. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for UC3845BD1R2G
- Description：IC REG CTRLR BOOST/FLYBACK 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Boost, Flyback
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：7.6V ~ 30V
- Frequency - Switching：Up to 500kHz
- Duty Cycle (Max)：48%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Frequency Control
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
DC DC Switching Controllers datasheet and documents for UC3845BD1R2G
DC DC Switching Controllers Overview
The UC3845BD1R2G is a high-performance current mode PWM controller manufactured by onsemi. It operates with a switching frequency of up to 250 kHz and supports input voltages from 12 V to 30 V. The device features a maximum duty cycle of 48% and provides an output drive capability of 1 A. It is housed in an SOIC-8 surface-mount package and is designed for flyback, forward, step-up, and step-down topologies.
DC DC Switching Controllers Feature Summary
- Current mode control architecture for improved line regulation and transient response
- Integrated oscillator with external timing resistor setting
- Built-in under-voltage lockout with hysteresis
- Programmable current limit threshold
DC DC Switching Controllers Applications
- Flyback power supplies
- Forward converters
- DC-to-DC step-up regulators
- DC-to-DC step-down regulators
DC DC Switching Controllers Procurement Notes
Verify the specific suffix 'D1R2G' against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the SOIC-8 package. Confirm that the operating temperature range meets your system requirements before finalizing procurement.
DC DC Switching Controllers Selection Notes
Select this component when a current-mode controller with a 250 kHz switching frequency is required. It is suitable for applications needing a maximum duty cycle of 48%. Consider the SOIC-8 package size for space-constrained designs. Verify input voltage ranges align with your power supply design constraints.
DC DC Switching Controllers Part Context
This part belongs to the UC384x series of current-mode PWM controllers from onsemi. These devices are widely used in offline and DC-to-DC converter applications. The series offers a balance of performance and cost-effectiveness for general-purpose power management solutions.
DC DC Switching Controllers Replacement Considerations
Check for direct pin-compatible alternatives within the UC384x family. Verify electrical parameters such as switching frequency and output drive current match your design requirements before substituting.
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