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MAX1909EVKIT

更新时间： 2024-11-26 23:45:55

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
6页	262K
描述
Evaluation Kit for the MAX1909

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中文翻译

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数据手册

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MAX1909EVKIT 数据手册

19-2981; Rev 0; 9/03

MAX1909 Evaluation Kit

General Description

Features

ꢀ Input Current Limiting

ꢀ

The MAX1909 evaluation kit (EV kit) is an accurate and

efficient multichemistry battery charger. The EV kit can

charge three or four series Li+ cells with a current up to

3A. Charge current and input-source current are

adjustable using on-board potentiometers. The output

voltage is set to 4.2V ✕ the number of series cells in the

battery pack. The number of series cells is jumper-

selectable. The output voltage is adjustable between

4V to 4.4V (✕ number of series cells) by installing two

resistors. The EV kit provides outputs to monitor the AC

adapter current and the presence of an AC adapter.

0.5% Output Voltage Accuracy Using Internal

Reference

ꢀ Automatic Selection of System Power Source

ꢀ Analog Inputs Control Charge Current and

Charge Voltage

ꢀ Monitor Outputs for

AC Adapter Current

AC Adapter Presence

ꢀ Up to 17.6V Battery Voltage

The MAX1909 automatically selects the power path for

supplying power to the system by controlling two exter-

nal P-channel MOSFETs. This decision is made based

on the presence of an AC adapter.

ꢀ +8V to +25V Input Voltage

ꢀ Up to 3A Battery Charge Current

ꢀ Charges Li+, NiCd, and NiMH Battery Chemistries

ꢀ Surface-Mount Construction

Component List

ꢀ Fully Assembled and Tested

DESIGNATION QTY

DESCRIPTION

Ordering Information

10µF 20ꢀ, 2ꢁ5 ꢂꢁꢃ ꢄceramꢄ

ꢄrprꢄmtoes (1812)

Trmyo Yudcn TMK432BJ106KM

TDK C4ꢁ32ꢂꢁꢃ1E106M

C1, C2

PART

TEMP RANGE

IC PACKAGE

MAX1909EVKIT

0°C to +70°C

28 Thin QFN

Not mnstrllcd (2220)

22µF 20ꢀ, 2ꢁ5 ꢄceramꢄ ꢄrprꢄmtoe

(2220)

TDK Cꢁ7ꢁ0ꢂꢁꢃ1E226M

Quick Start

Required Equipment

Before beginning, the following equipment is required:

Cꢁ, C6

Not mnstrllcd, E-smzc ꢄrprꢄmtoes

• DC source to supply the input current to the charger.

This source must be capable of supplying a voltage

greater than the battery-voltage set point and have

sufficient current rating.

0.1µF 10ꢀ, 2ꢁ5 ꢂ7ꢃ ꢄceramꢄ

ꢄrprꢄmtoes (0603)

Muertr GꢃM188ꢃ71E104K

TDK C1608ꢂ7ꢃ1E104K

C7, C9, C12,

C17, C18

ꢁ

• Voltmeter

• Battery pack or load

C8, C13, C14,

C1ꢁ

Not mnstrllcd, ꢄrprꢄmtoes (0603)

1µF 10ꢀ, 6.35 ꢂꢁꢃ ꢄceramꢄ

ꢄrprꢄmtoes (0603)

Muertr GꢃM188ꢃ60J10ꢁK

Trmyo Yudcn JMK107BJ10ꢁKA

TDK C1608ꢂꢁꢃ1A10ꢁK

Procedure

The MAX1909 EV kit is a fully assembled and tested

surface-mount board. Follow the steps below to verify

board operation. Do not turn on the power supply

until all connections are completed. Observe all pre-

cautions on the battery manufacturer’s data sheet:

C10, C11, C21

1µF 10ꢀ, 2ꢁ5 ꢂ7ꢃ ꢄceramꢄ

ꢄrprꢄmtoe (1206)

Muertr GꢃM31Mꢃ71E10ꢁK

Trmyo Yudcn TMK316BJ10ꢁKL

TDK C3216ꢂ7ꢃ1E10ꢁK

1) Set jumper JU1 to indicate the number of cells in

the battery pack (Table 1).

C16

2) Remove the shunt on JU2 to disable the MAX1909.

3) The battery regulation voltage is set to 4.2V per cell.

If a different voltage is required, see the Battery

Regulation Voltage section.

0.01µF 10ꢀ, ꢁ05 ꢂ7ꢃ ꢄceramꢄ

ꢄrprꢄmtoes (0603)

Muertr GꢃM188ꢃ71H103K

Trmyo Yudcn UMK107B103KZ

TDK C1608ꢂ7ꢃ1H103K

C19, C20

4) The charge current is set to 3A. If a different current

is required, see the Charging Current Limit section.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6

中文翻译

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与MAX1909EVKIT相关器件

型号	品牌	获取价格	描述	数据表
MAX190ACNG	MAXIM	获取价格	Low-Power, 12-Bit Sampling ADCs with Internal Reference and Power-Down
MAX190ACNG+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial, Parallel, 8 Bits Access,
MAX190ACNG-T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial, Parallel, 8 Bits Access,
MAX190ACWG	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDSO24, SOIC-24
MAX190ACWG	MAXIM	获取价格	Low-Power, 12-Bit Sampling ADCs with Internal Reference and Power-Down
MAX190ACWG+	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial, Parallel, 8 Bits Access,
MAX190ACWG+T	MAXIM	获取价格	暂无描述
MAX190ACWG-T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial, Parallel, 8 Bits Access,
MAX190AENG	MAXIM	获取价格	Low-Power, 12-Bit Sampling ADCs with Internal Reference and Power-Down
MAX190AENG+	ROCHESTER	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDIP24, PLASTIC, DIP-24

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