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What is UM0903?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "Li-Ion battery monitor and gas gauge based User manual".


UM0903 Datasheet PDF - STMicroelectronics

Part Number UM0903
Description Li-Ion battery monitor and gas gauge based User manual
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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UM0903
User manual
STEVAL-ISB011V1, Li-Ion battery monitor and gas gauge
based on the STC3100
Introduction
This document describes an easy and compact solution to monitor voltage, temperature,
current, and capacity of single cell Li-Ion batteries using the STC3100, which has a highly
efficient gas gauge. In addition, the board has an internal charger in order to charge the
battery. Battery charging can be done through the USB port or by using a DC adaptor.
The board has the following devices:
Battery monitoring device STC3100
Microcontroller STM32F102C6
Voltage regulator LD1117Axx33
Li-Ion battery charger IC STC4054
Step-up converter L6920
Figure 1. STEVAL-ISB011V1 Li-Ion battery monitor and gas gauge based on
STC3100
January 2011
Doc ID 17060 Rev 1
1/40
www.st.com
http://www.Datasheet4U.com

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UM0903 equivalent
UM0903
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STEVAL-ISB011V1 Li-Ion battery monitor and gas gauge based on STC3100 . . . . . . . . . . 1
STEVAL-ISB011V1, USB Li-Ion battery charger parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
System architecture details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Data screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Display tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Welcome message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Data screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Temperature display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Voltage display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Display message 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Display message 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Display message 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Display message 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Display message 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Display message 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Display message 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
HyperTerminal settings 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
HyperTerminal settings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
HyperTerminal settings 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
HyperTerminal settings 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Dump of data on HyperTerminal settings 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
JTAG connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Micro-B USB connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Microcontroller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Clock selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
STC4054 battery charger, 3.3 V output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
LCD power supply switch section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
JTAG connector, switches and switching MOSFET section . . . . . . . . . . . . . . . . . . . . . . . . 31
Wall adaptor and external oscillator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
LCD section and controller selection jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
USB and 5 V output section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Doc ID 17060 Rev 1
5/40


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Part NumberDescriptionMFRS
UM0903The function is Li-Ion battery monitor and gas gauge based User manual. STMicroelectronicsSTMicroelectronics

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