Pin Application - Huawei GDQ54S12B-4A Technical Manual

GDQ54S12B-4A DC-DC Converter
Technical Manual

5.3 Pin Application

Figure 5-2 Recommended RC filter circuit diagram
On/Off Pin
The main output of module can be turned on or turned off by On/Off signal.
On/Off Pin Level
Low level [–0.7 V, 1.2 V]
High level [3.5 V, 12.0 V]
On/Off Signal
On/Off current (low level)
Issue 02 (2021-09-03)
NO TE
● Do not short-circuit the output pins. Otherwise, the converter may fail after it is
powered on.
● The output filter capacitor and ceramic capacitor should be placed close to the pins of
the converter.
● Non-power traces must be far away from high-voltage and high-frequency signals. You
are advised to add an RC filter circuit if possible.
● Ensure that the heat dissipation of the power MOS tube at the bottom of the converter
is good during usage.
Copyright © Huawei Technologies Co., Ltd.
5 Product Structure Overview
Status
On
Off
Max.
1 mA
16