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UM0903のメーカーはSTMicroelectronicsです、この部品の機能は「Li-Ion battery monitor and gas gauge based User manual」です。 |
部品番号 | UM0903 |
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部品説明 | Li-Ion battery monitor and gas gauge based User manual | ||
メーカ | STMicroelectronics | ||
ロゴ | |||
このページの下部にプレビューとUM0903ダウンロード(pdfファイル)リンクがあります。 Total 30 pages
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
1 Page UM0903
Contents
7.3 Power supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.4 LCD connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5 Jumper J7, J8, J10, and J11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.6 Jumper J9 details: connector for external MCU . . . . . . . . . . . . . . . . . . . . 26
7.7 Clock selection jumper SW6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.8 Jumper J3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.9 Terminal block J12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.10 Terminal block J14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.11 Charger selection switch: SW8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8 Hardware schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Appendix A References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Doc ID 17060 Rev 1
3/40
3Pages Key features
1 K ey features
UM0903
● STC3100 uses Coulomb counter/gas gauge to keep track of the remaining charge in
the battery. The device also reads the charging current, temperature, and voltage of the
battery
● Onboard STM32 microcontroller is interfaced with USB, STC3100, LCD, and switches.
The battery parameters are sent to the PC via a virtual com port. The board can work
without connecting to the PC and parameters are shown locally on the LCD
● Charging and discharging status is displayed by the + and - sign respectively on the
LCD and also LED (D2) toggles during charging of the battery and turned off during
discharging
● Gas gauge: battery capacity up to +7300 mAh can be monitored (programmable by
user)
● Feature of selecting external charger or internal charger for charging the battery using
a switch (SW8). This allows the user to use/evaluate the STC3100 using their own
charger system
● Onboard charger (STC4054) available to charge the battery
● 4 switches for scrolling through the menu
● Micro-B connector used for communication with the PC to send the various battery
parameters. Power from the micro-B connector can also be used to power on the board
and to charge the battery using internal charger
● Option of interfacing external microcontroller using jumpers. The onboard battery
monitoring device, STC3100, can be disconnected from the onboard microcontroller
and the user can connect their own microcontroller to the relevant pins of STC3100
using external connector and jumper selection
● Option for selecting clock source for STC3100 from external oscillator, internal
STC3100's clock or from clock generated by internal/external microcontroller (generally
PWM/timer output). This is done to save the external oscillator cost.
1.1 T
ypical applications
● Battery monitoring for handheld devices such as PDAs, mobile phones, MP3 players
● Medical equipment, such as glucometers
● Digital cameras, USB-chargers, digital photo frames
● Consumer applications using a battery.
6/40 Doc ID 17060 Rev 1
6 Page | |||
ページ | 合計 : 30 ページ | ||
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部品番号 | 部品説明 | メーカ |
UM0903 | Li-Ion battery monitor and gas gauge based User manual | STMicroelectronics |