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Product Detailed Parameters
- Description：IC OFFLINE SWITCH 8DIP
- Series：-
- Mfr：Diodes Incorporated
- Package：Tube
- Output Isolation：Non-Isolated
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：-
- Voltage - Start Up：16 V
- Voltage - Supply (Vcc/Vdd)：10V
- Duty Cycle：97%
- Frequency - Switching：52kHz
- Fault Protection：Current Limiting, Over Load, Over Temperature
- Control Features：Frequency Control
- Operating Temperature：-40°C ~ 85°C (TA)
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Mounting Type：Through Hole
- Grade：-
- Qualification：-
- Power (Watts)：1 W
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Overview
The AP3843CP-G1 is an offline switcher IC manufactured by Diodes Incorporated, designed for AC-DC conversion applications. It operates at a switching frequency of 52kHz and supports a maximum duty cycle of 97%. The device features a startup voltage of 16V and requires a supply voltage (Vcc/Vdd) of 10V. It delivers up to 1W of power and includes comprehensive fault protection mechanisms such as current limiting, overload protection, and overtemperature shutdown. The component is housed in an 8-DIP package with a width of 0.300 inches (7.62mm), suitable for through-hole mounting.
Feature Summary
- Integrated current-mode control for stable operation
- Built-in protection against current limits, overloads, and overheating
- Fixed 52kHz switching frequency for efficient power management
Applications
- Offline converter topologies
- AC-DC power supply designs
- General-purpose power management circuits
Procurement Notes
Verify the exact suffix 'G1' to confirm RoHS compliance and lead-free status. Confirm the 'CP' designation indicates the PDIP-8 package variant. Check for End-of-Life (EOL) notices or Product Change Notifications (PCN) as availability may be limited. Ensure the supplier provides valid traceability documentation for quality assurance purposes.
Selection Notes
Select this component for low-power offline applications requiring fixed-frequency operation. Compare the 52kHz frequency against higher-speed alternatives if size constraints are critical. Evaluate the 1W power limit against load requirements. Consider the DIP package for prototyping or high-reliability through-hole assemblies versus surface-mount options like the CM series.
Part Context
The AP3843 belongs to a family of offline switches from Diodes Incorporated. Variants include the AP3842 series and surface-mount versions like the AP3843CM. These components share similar control architectures but differ in packaging and specific electrical tolerances. The AP3843CP-G1 specifically denotes the through-hole DIP version with green molding and halogen-free attributes.
Replacement Considerations
Direct substitutes within the same package and pinout should be verified against official cross-reference lists. The AP3842CP-G1 shares similar specifications but may have slight parameter differences. Surface-mount equivalents like the AP3843CM require PCB layout adjustments. Always validate thermal performance and footprint compatibility before substitution.
