Rs232chargepump

The UM232EExE series are low power single supply RS232 interface. The device consists of two line drivers, two line receivers, and dual charge pump circuit.

A common application for charge-pump circuits is in RS-232 level shifters, where they are used to derive positive and negative voltages (often +10 V and ...

2010年6月18日 — With a new low-dropout output stage, Maxim introduced RS-232 transceivers with internal charge pumps that provided regulated ±5.5V outputs. This ...

The first charge pump works as a doubler and creates +10V from the 5V supply, minus some losses. The second charge-pump converter is configured as an inverter ...

The MAX232 (and other single supply devices) includes two charge pumps. The first charge pump doubles +5V to approximately +10V and the second charge pump ...

This Application note provides instructions for selecting the proper Charge Pump capacitor values. (C1 - C4) for a given input voltage.

This article demonstrates a method for choosing charge pump capacitor values for V.28 and V.11 transceivers. Background. RS-232 transceivers with on-chip charge ...

The RS-232 standard specifies that a logic 0 is represented by voltages between 5 V and 25 V, and a logic 1 by voltages between –5 V and –25 V. My problem was ...

The charge pump requires five small 0.1-μF capacitors for operation from as low as a 1.8-V supply. The TRS3122E is capable of running at data rates up to 1000 ...