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- ZH · EN
- Last added
- 2012-02-23
Featured Wuhan力源信息 manuals

Wuhan Liyuan MCP3221-EVM User Manual
The MCP3221‑EVM is an evaluation kit developed by Wuhan Liyuan for Microchip's low‑power 12‑bit MCP3221 A/D converter. The kit includes an evaluation board, RS‑232 cable, and a CD with PC software for real‑time waveform display and data logging.
The manual covers hardware connections, software installation, operation of the demo program, data recording, serial‑port debugging, and provides source code for 8051 and PIC microcontrollers. Ordering information and specifications of the MCP3221 device are also included. This manual is written in Chinese.
Covers: Overview · MCP3221 Device · Features · Evaluation Board · Power Supply · Demo Program

ON Semiconductor NLSF595 LED Driver Datasheet
The NLSF595 is a CMOS shift register with open‑drain outputs designed for driving three‑color LEDs via an SPI interface. It features parallel latch outputs, high‑current capability, and over‑voltage protection on all pins.
The document provides pin configurations, electrical characteristics, timing requirements, package dimensions for TSSOP‑16 and SOIC‑16, and typical application circuits, enabling designers to integrate the device into LED control systems. This manual is written in Chinese.
Covers: Features · Pin Configuration · Electrical Characteristics · Timing Requirements · Package Dimensions · Typical Application

Wuhan P&S Information TPS7301Q/TPS7325Q/TPS7330Q/TPS7333Q/TPS7348Q/TPS7350Q LDO Regulator Manual
The TPS73xx series includes six low‑dropout (LDO) regulators (TPS7301Q, TPS7325Q, TPS7330Q, TPS7333Q, TPS7348Q, TPS7350Q) offering fixed output voltages of 2.3 V, 3 V, 3.3 V, 4.8 V and 5 V. The devices feature integrated delay functions, low quiescent current and selectable output current up to 500 mA.
The document provides electrical characteristics, typical application circuits, pin configurations, package dimensions for TSSOP, PW and other formats, and performance graphs. Test conditions and derating tables for both ambient and elevated temperatures are also included. This manual is written in Chinese.
Covers: Features · Electrical Characteristics · Pin Configuration · Package Information · Typical Application Circuit · Performance Graphs

ON Semiconductor NCP1402 DC-DC Converter Datasheet
The NCP1402 series is a single‑chip, low‑power DC‑DC converter that delivers up to 200 mA with a very low quiescent current. It operates from input voltages as low as 0.8 V and can generate output voltages from 1.8 V to 5.0 V, using only three external components. The device is offered in a thin SOT‑23‑5 package and includes internal PFM control, a comparator, and protection features.
Key electrical characteristics include a typical switch‑on time of 3.6 µs, a maximum duty cycle of up to 85 %, and a minimum start‑up voltage of about 0.85 V. The part is rated for operation from –40 °C to +125 °C and meets HBM 2 kV and MM 200 V ESD protection standards. This manual is written in Chinese.
Covers: Features · Pin Configuration · Electrical Characteristics · Typical Application Circuit · Package Information · Performance Graphs
Latest Wuhan力源信息 manuals
Wuhan Liyuan MCP3221-EVM User Manual
User Manual 6 pages · 1009 KB · ZHThe Wuhan Liyuan MCP3221-EVM User Manual provides setup, operation, and software instructions for the MCP3221 evaluation kit.
ON Semiconductor NLSF595 LED Driver Datasheet
Datasheet 13 pages · 442 KB · ZHTechnical datasheet for the ON Semiconductor NLSF595 SPI three‑color LED driver.
WUHAN P&S information technology Service NLSF595 chinese handbook
Wuhan P&S Information TPS7301Q/TPS7325Q/TPS7330Q/TPS7333Q/TPS7348Q/TPS7350Q LDO Regulator Manual
Datasheet 40 pages · 1.2 MB · ZHDatasheet for Wuhan P&S Information TPS73xx series low‑dropout regulators covering specifications, pinout and package details.
ON Semiconductor NCP1402 DC-DC Converter Datasheet
Datasheet 19 pages · 566 KB · ZHThe NCP1402 datasheet from ON Semiconductor provides specifications, pin configuration, and performance characteristics of the 200 mA SOT‑23‑5 DC‑DC regulator.
Wuhan Liyuan PS12W5T12T24TS-EVB and PS8W5T12T24TU-EVB Datasheet
Datasheet 5 pages · 546 KB · ZHThis datasheet provides specifications, board layout, schematic and usage guidelines for the Wuhan Liyuan PS12W5T12T24TS-EVB and PS8W5T12T24TU-EVB…
WUHAN P&S information technology PS5171/PS5172 Manual
Datasheet 12 pages · ENTechnical data sheet for Intersil EL5171 and EL5172 integrated circuits.
STMicroelectronics PSDsoft EXPRESS Design Software User Manual
User Manual 71 pages · 4.1 MB · ENUser manual for STMicroelectronics PSDsoft EXPRESS, a design and programming tool for PSD devices.
Wuhan Liyuan ISL6441EVAL User Manual
User Manual 7 pages · 468 KB · ZHThis manual explains the ISL6441EVAL evaluation board, its connections, power ranges, output settings and usage steps.
Intersil CD22M3494EVM User Manual
User Manual 4 pages · 491 KB · ZHThe Intersil CD22M3494EVM User Manual explains how to power, connect, and operate the evaluation board, and lists its components and specifications.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in Wuhan力源信息 manuals
How do I connect the evaluation board to the PC?
Connect the board to the PC’s serial port 1 using the supplied cable.
What should I do if the program reports a missing or corrupted mscomm32.ocx?
Copy the mscomm32.ocx file from the CD to the current directory or the system’s system directory.
What is the maximum clock frequency of the NLSF595?
The device supports a maximum clock frequency greater than 25 MHz.
How many three‑color LEDs can one NLSF595 control?
Each NLSF595 can control two three‑color LEDs; two devices cascaded can control five LEDs.
What is the maximum output current of the NCP1402?
The NCP1402 can deliver up to 200 mA of output current.
What package does the NCP1402 use?
It is supplied in a thin SOT‑23‑5 surface‑mount package.
