This document introduces the SPW3842D product produced by SEcoSGmbH.com, which is a high-performance fixed frequency current mode controller specially designed for Off-Line and DC TO DC converter applications, providing designers with a cost-effective solution with minimal external components.
The SPW3842D is a high‑performance fixed‑frequency current‑mode controller designed for off‑line and DC‑to‑DC converter applications. It integrates a trimmed oscillator, temperature‑compensated reference, high‑gain error amplifier, current‑sense comparator and a high‑current totem‑pole output suitable for driving power MOSFETs.
The device is supplied in a DIP‑8 package, operates from a 12‑25 V supply, and includes protective features such as input and reference undervoltage lockout, cycle‑by‑cycle current limiting, programmable dead‑time and latch‑controlled single‑pulse metering.
| Package | DIP‑8 |
|---|---|
| Oscillator Frequency (typical) | 250 kHz |
| Maximum Output Current (source or sink) | 1 A |
| Power Dissipation (thermal) | 702 mW |
| Supply Voltage Range | 12 V to 25 V |
| Maximum Duty Cycle | 96 % |
| Undervoltage Lockout Threshold (startup) | 16 V (typical) |
The SPW3842D is supplied in a DIP‑8 package.
It can source or sink up to 1 A of current.
The oscillator frequency is guaranteed at 250 kHz.