Linear Technology DC299 Bedienungsanleitung

DC299 Introduction

Description

Demo board DC299 features the LTC1729 Li-Ion charge-termination IC in combination with the

LT1769 battery charger IC. This board provides a complete solution for charging 1- or 2-cell Li-

Ion batteries with a 2A charging current. These ICs have end-of-charge termination that can be

configured to stop the charger when the charge current drops below 10% of its initial setting or

when the internal timer counts to 3 hours. A safety termination feature disables charging if the

temperature is below 0°C or above 50°C and resumes charging when the temperature returns to

the 0°C to 50°C range. The solution extends battery life by trickle charging when the battery is

depleted and by meeting the battery manufacturers’voltage requirement of 1% total accuracy.

Finally, the board adds convenience by automatically detecting when a battery or supply is

present.

This board is intended for designers who need the versatility of battery charger DC/DC

converters. The small size and efficiency of this circuit allow it to function in portable

applications as well as in wall operated chargers.

Quick Start Guide

It is simple to set up the DC299 demo board to charge a 1-cell or 2-cell Li-Ion battery. Follow the

procedure outlined below for proper operation. Note: Use the battery manufacturer’s

recommended safety procedures and protection circuits.

–

'SCOPE

BATTERY

TO BE

CHARGED

SYSTEM

LOAD

GND

UV OUT

PROGRAM

VBAT

GND

NTC

GND

+VIN

LT1769CGN/LTC1729CMS8

2A Li-Ion Battery Charger

With Termination Controller

Demo Circuit DC299A

]

LED

]

C/10

]

3HR

JP1

Figure 1. DC299 Connection Diagram

1. The demo board comes in four versions, each with a different output voltage. It is very

important to determine the correct version for your battery. To verify the output voltage of the

board, compare the marking on the top of U2 (refer to Figure 1) with Table 1.

2. Before turning on power, connect the input power supply, battery, oscilloscope and meters as

shown in Figure 1. For best accuracy, it is important to connect voltmeters directly to the PCB

terminals when measuring input and output voltages.

3. Select the end-of-charge termination method desired. If 3-hour termination is preferred,

connect two jumpers on JP1, enabling LED and 3HR. To stop the charger after the current

drops below 10% of 2A or 200mA, connect the jumper on JP1 to enable C/10.

4. The charger can be stopped if the temperature is not in the 0°C to 50°C range using the NTC

terminal on the PCB board. An external 10k NTC thermistor, such as a Vishay

NTHS12106N02, must be connected between the NTC terminal and ground and R14 must be

removed from the PCB board.

1elbaT

gnikraMtraPegatloVnoisreVylbmessA

YLTLV1.4A-

HJTLV2.4B-

ZLTLV2.8C-

GJTLV4.8D-

Inhaltsverzeichnis

Andere Linear Technology Hauptplatine Handbücher

Linear Technology

Linear Technology DC2160A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology LTC3554EPD Bedienungsanleitung

Linear Technology

Linear Technology DC1496C Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1485A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology LTC2270 Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1923A Bedienungsanleitung

Linear Technology

Linear Technology DC150A Bedienungsanleitung

Linear Technology

Linear Technology DC1624A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1788B Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC2566A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC2218A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology LT3460ESC6 Bedienungsanleitung

Linear Technology

Linear Technology DC2016A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1145B Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1392A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1999A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1659A Bedienungsanleitung

Linear Technology

Linear Technology DC2270A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1668A-C Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1626A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC814 Bedienungsanleitung

Linear Technology

Linear Technology DC1332B Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology DC1362A-A Kurzanleitung zur Einrichtung

Linear Technology

Linear Technology LTC3773EG Bedienungsanleitung

Beliebte Hauptplatine Handbücher anderer Marken

DFI

DFI SD170 Bedienungsanleitung

ASROCK

ASROCK ROMED8-2T Bedienungsanleitung

Asus

Asus P2L97A Bedienungsanleitung

Winmate

Winmate IC70 Bedienungsanleitung

Asus

Asus MES-B Bedienungsanleitung

Grantech

Grantech SYS8F377VGGA-3OMN Bedienungsanleitung

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Bedienungsanleitung

Gigabyte

Gigabyte GA-9IVDT Bedienungsanleitung

Texas Instruments

Texas Instruments ADS8372EVM Bedienungsanleitung

Commell

Commell MS-C73 Bedienungsanleitung

IBT Technologies

IBT Technologies MB860 Bedienungsanleitung

Nvidia

Nvidia TEGRA DG-04927-001_V01 Bedienungsanleitung

Biostar

Biostar M7VIT Bravo Bedienungs- und Montageanleitung

Intel

Intel D33217CK Bedienungsanleitung

Asus

Asus F1A55-M LX PLUS R2.0 Bedienungsanleitung

EPC

EPC EPC9147C Bedienungsanleitung

Asus

Asus EX-B760M-V5 D4 Bedienungsanleitung

EPOX

EPOX MU-8KHA0010 Bedienungsanleitung