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PJ3845B - (PJ3844B / PJ3845B) High Performance Current Mode Controller

Download the PJ3845B datasheet PDF. This datasheet also covers the PJ3844B_Promax variant, as both devices belong to the same (pj3844b / pj3845b) high performance current mode controller family and are provided as variant models within a single manufacturer datasheet.

General Description

Pin No.

1 2 3 4 5 6 7 8 Function Compensation Voltage Feedback Current Sense RT/CT Gnd Output Vcc Vref Description This pin is the Error Amplifier output and is made available for loop compensation This is the inverting input of the Error Amplifier.

Key Features

  • consisting of input and reference undervoltage lockouts each with hysteresis,.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PJ3844B_Promax-JohntonSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number PJ3845B
Manufacturer Promax-Johnton Semiconductor
File Size 840.02 KB
Description (PJ3844B / PJ3845B) High Performance Current Mode Controller
Datasheet download datasheet PJ3845B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
T PJ3844B / PJ3845B High Performance Current Mode Controller he PJ3844B , PJ3845 series are high performance fixed frequency current mode controllers. This is specifically cycle-by-cycle current limiting , programmable output deadtime, and a latch for single pulse metering. Allowing output deadtimes to be programmed from 50% to 70%. This device is available in 8-pin dual-in-line plastic packages as well as the 8-pin plastic surface mount (SOP-8). The SOP-8 package has separate power and ground pins for the totem pole output stage. The PJ3844B is tailored for lower voltage applications having UVLO thresholds of 16V (on) 10V (off). ThePJ3845B is tailored for lower voltage applications having UVLO thresholds of 8.5V(on) and 7.6V(off).