2024年5月11日发(作者：东方诗翠)

19-0292; Rev 0; 5/05

MAX8725评估板

____________________________________概述

MAX8725评估板(EV kit) 是高精度、高效率的多化学类

型电池充电器。该评估板能够以高达3A的电流为三至四

节串联的锂离子电池(Li+) 充电。充电电流和输入电源电

流通过板上电位器调节。输出电压可设置为4.2V x 电池

包中串联电池节数。串联电池节数由跳线选择。通过安

装两个电阻，输出电压可在4V至4.4V x (串联电池节数)

之间调节。该评估板还提供用于监视AC适配器电流的输

出，并可监视是否连接了AC适配器。

MAX8725通过控制两个外部p沟道MOSFET自动选择系统

供电电源。决定选择哪一路电源供电的依据是：是否连

接了AC适配器。

____________________________________特性

♦输入限流

♦利用内部基准提供±0.5%的电压检测精度

♦自动选择系统电源

♦模拟输入控制充电电流和充电电压

♦监视输出

AC适配器电源电流

AC适配器是否接通

♦电池电压高达17.6V

♦+8V至+25V输入电压

♦电池充电电流高达3A

评估板：MAX8725

♦可为Li+、NiCd和NiMH电池充电

♦表贴封装

♦经过完全安装和测试

________________________________定购信息

PART

TEMP RANGE

IC PACKAGE

MAX8725EVKIT

0°C to +70°C

28 Thin QFN

___________________________________________________________________________元件列表

D

ESIGNATION

QTYD

ESCRIPTION

D

ESIGNATION

QTYD

ESCRIPTION

1

0µF ±20%, 25V X5R ceramic

1

µF ±10%, 25V X7R ceramic

C

1, C22

capacitors (1812)

capacitor (1206)

Taiyo Yuden TMK432BJ106KM,

C

161

Murata GRM31MR71E105K,

TDK C4532X5R1E106M

Taiyo Yuden TMK316BJ105KL,

C

30

Not installed (2220)

TDK C3216X7R1E105K

22µF ±20%, 25V ceramic capacitor

0

.01µF ±10%, 50V X7R ceramic

C

41

(2220)

TDK C5750X5R1E226M

C

capacitors (0603)

19, C202

Murata GRM188R71H103K,

C

5, C60

N

ot installed, E-size capacitors

Taiyo Yuden UMK107B103KZ,

TDK C1608X7R1H103K

C

7, C8, C9

C13, C14, C15

0

N

ot installed, capacitors (0603)

2

.2µF ±20%, 35V tantalum capacitor

1

µF ±10%, 6.3V X5R ceramic

C

221

(B-size)

AVX TAJB225M035

capacitors (0603)

K

emet T491B225M035AS

C

10, C11, C213

Murata GRM188R60J105K,

Taiyo Yuden JMK107BJ105KA,

S

chottky diode, 0.5A, 30V SOD-123

TDK C1608X5R1A105K

D

11

Diodes Inc. B0530W,

0

.1µF ±10%, 25V X7R ceramic

General Semiconductor MBR0530,

ON Semiconductor MBR0530

C

12, C17, C183

capacitors (0603)

Murata GRM188R71E104K,

D

20

N

ot installed

TDK C1608X7R1E104K

________________________________________________________________Maxim Integrated Products1

本文是Maxim正式英文资料的译文，Maxim不对翻译中存在的差异或由此产生的错误负责。请注意译文中可能存在文字组织或

翻译错误，如需确认任何词语的准确性，请参考Maxim提供的英文版资料。

索取免费样品和最新版的数据资料，请访问Maxim的主页：。

MAX8725评估板

评

估

板

：

M

A

X

8

7

2

5

_______________________________________________________________________元件列表(续)

DESIGNATION

QTY

J1

JU1, JU2

JU3

L1

1

DESCRIPTION

Smart battery header assembly, right

angle, keyless, five position

Tyco Electronics (AMP) 787441-1

DESIGNATION

QTY

R1

1

DESCRIPTION

0.01Ω ±

1%, 0.5W sense r esi stor ( 2010)

Vishay Dale WSL2010 0.010 1.0%,

IRC LRC-LR2010-01-R010-F

0.015Ω ±1%, 0.5W sense resistor

R2

1

(2010)

Vishay Dale WSL2010 0.015 1.0%,

IRC LRC-LR2010-01-R015-F

Not installed, resistors (0603)

2

0

1

-pin headers2

ot installedN

10µH, 4.4A inductor

Sumida CDRH104R-100NC,

TOKO 919AS-100M

Single, n-channel, 8.4A, 30V, 8-pin

SO MOSFET

Fairchild FDS6612A

Single, p-channel, -5.3A, -30V, 8-pin

SO MOSFET

Fairchild FDS9435A

Single, p-channel, -11A, -30V, 8-pin

SO MOSFETs

Fairchild FDS6675

R3, R4, R8,

R13, R14, R15,

R17–R23

0

N1

1

5R

6R

R7, R12

R9, R10, R11

R16

R24

U1

P1

1

P2, P3, P4

3

1

1

2

3

1

1

1

90kΩ ±1% resistor (0603)5

96kΩ ±1% resistor (0603)1

50kΩ potentiometers (multiturn)

10kΩ ±5% resistors (0603)

33Ω ±5% resistor (0603)

10Ω ±5% resistor (0603)

MAX8725ETI (28-pin thin QFN-EP)

_________________________________________________________________________元件供应商

SUPPLIER

PHONE

FAX

WEBSITE

VXA

iodes Inc.D

Fairchild Semiconductor

General Semiconductor

International Resistive Co.

Kemet

Murata

ON Semiconductor

Sumida

Taiyo Yuden

TDK

TOKO

Vishay Dale

43-946-02388

05-446-48008

888-522-5372

760-804-9258

361-992-7900

864-963-6300

770-436-1300

602-244-6600

847-545-6700

800-348-2496

847-803-6100

847-297-0070

402-564-3131

43-626-31238

05-381-38998

—

760-804-9259

361-992-3377

864-963-6322

770-436-3030

602-244-4545

847-545-6720

847-925-0899

847-390-4405

847-699-1194

402-563-6296

注意：在与这些元件供应商联系时，请说明您正在使用MAX8725。

2_______________________________________________________________________________________

2024年5月11日发(作者：东方诗翠)

19-0292; Rev 0; 5/05

MAX8725评估板

____________________________________概述

MAX8725评估板(EV kit) 是高精度、高效率的多化学类

型电池充电器。该评估板能够以高达3A的电流为三至四

节串联的锂离子电池(Li+) 充电。充电电流和输入电源电

流通过板上电位器调节。输出电压可设置为4.2V x 电池

包中串联电池节数。串联电池节数由跳线选择。通过安

装两个电阻，输出电压可在4V至4.4V x (串联电池节数)

之间调节。该评估板还提供用于监视AC适配器电流的输

出，并可监视是否连接了AC适配器。

MAX8725通过控制两个外部p沟道MOSFET自动选择系统

供电电源。决定选择哪一路电源供电的依据是：是否连

接了AC适配器。

____________________________________特性

♦输入限流

♦利用内部基准提供±0.5%的电压检测精度

♦自动选择系统电源

♦模拟输入控制充电电流和充电电压

♦监视输出

AC适配器电源电流

AC适配器是否接通

♦电池电压高达17.6V

♦+8V至+25V输入电压

♦电池充电电流高达3A

评估板：MAX8725

♦可为Li+、NiCd和NiMH电池充电

♦表贴封装

♦经过完全安装和测试

________________________________定购信息

PART

TEMP RANGE

IC PACKAGE

MAX8725EVKIT

0°C to +70°C

28 Thin QFN

___________________________________________________________________________元件列表

D

ESIGNATION

QTYD

ESCRIPTION

D

ESIGNATION

QTYD

ESCRIPTION

1

0µF ±20%, 25V X5R ceramic

1

µF ±10%, 25V X7R ceramic

C

1, C22

capacitors (1812)

capacitor (1206)

Taiyo Yuden TMK432BJ106KM,

C

161

Murata GRM31MR71E105K,

TDK C4532X5R1E106M

Taiyo Yuden TMK316BJ105KL,

C

30

Not installed (2220)

TDK C3216X7R1E105K

22µF ±20%, 25V ceramic capacitor

0

.01µF ±10%, 50V X7R ceramic

C

41

(2220)

TDK C5750X5R1E226M

C

capacitors (0603)

19, C202

Murata GRM188R71H103K,

C

5, C60

N

ot installed, E-size capacitors

Taiyo Yuden UMK107B103KZ,

TDK C1608X7R1H103K

C

7, C8, C9

C13, C14, C15

0

N

ot installed, capacitors (0603)

2

.2µF ±20%, 35V tantalum capacitor

1

µF ±10%, 6.3V X5R ceramic

C

221

(B-size)

AVX TAJB225M035

capacitors (0603)

K

emet T491B225M035AS

C

10, C11, C213

Murata GRM188R60J105K,

Taiyo Yuden JMK107BJ105KA,

S

chottky diode, 0.5A, 30V SOD-123

TDK C1608X5R1A105K

D

11

Diodes Inc. B0530W,

0

.1µF ±10%, 25V X7R ceramic

General Semiconductor MBR0530,

ON Semiconductor MBR0530

C

12, C17, C183

capacitors (0603)

Murata GRM188R71E104K,

D

20

N

ot installed

TDK C1608X7R1E104K

________________________________________________________________Maxim Integrated Products1

本文是Maxim正式英文资料的译文，Maxim不对翻译中存在的差异或由此产生的错误负责。请注意译文中可能存在文字组织或

翻译错误，如需确认任何词语的准确性，请参考Maxim提供的英文版资料。

索取免费样品和最新版的数据资料，请访问Maxim的主页：。

MAX8725评估板

评

估

板

：

M

A

X

8

7

2

5

_______________________________________________________________________元件列表(续)

DESIGNATION

QTY

J1

JU1, JU2

JU3

L1

1

DESCRIPTION

Smart battery header assembly, right

angle, keyless, five position

Tyco Electronics (AMP) 787441-1

DESIGNATION

QTY

R1

1

DESCRIPTION

0.01Ω ±

1%, 0.5W sense r esi stor ( 2010)

Vishay Dale WSL2010 0.010 1.0%,

IRC LRC-LR2010-01-R010-F

0.015Ω ±1%, 0.5W sense resistor

R2

1

(2010)

Vishay Dale WSL2010 0.015 1.0%,

IRC LRC-LR2010-01-R015-F

Not installed, resistors (0603)

2

0

1

-pin headers2

ot installedN

10µH, 4.4A inductor

Sumida CDRH104R-100NC,

TOKO 919AS-100M

Single, n-channel, 8.4A, 30V, 8-pin

SO MOSFET

Fairchild FDS6612A

Single, p-channel, -5.3A, -30V, 8-pin

SO MOSFET

Fairchild FDS9435A

Single, p-channel, -11A, -30V, 8-pin

SO MOSFETs

Fairchild FDS6675

R3, R4, R8,

R13, R14, R15,

R17–R23

0

N1

1

5R

6R

R7, R12

R9, R10, R11

R16

R24

U1

P1

1

P2, P3, P4

3

1

1

2

3

1

1

1

90kΩ ±1% resistor (0603)5

96kΩ ±1% resistor (0603)1

50kΩ potentiometers (multiturn)

10kΩ ±5% resistors (0603)

33Ω ±5% resistor (0603)

10Ω ±5% resistor (0603)

MAX8725ETI (28-pin thin QFN-EP)

_________________________________________________________________________元件供应商

SUPPLIER

PHONE

FAX

WEBSITE

VXA

iodes Inc.D

Fairchild Semiconductor

General Semiconductor

International Resistive Co.

Kemet

Murata

ON Semiconductor

Sumida

Taiyo Yuden

TDK

TOKO

Vishay Dale

43-946-02388

05-446-48008

888-522-5372

760-804-9258

361-992-7900

864-963-6300

770-436-1300

602-244-6600

847-545-6700

800-348-2496

847-803-6100

847-297-0070

402-564-3131

43-626-31238

05-381-38998

—

760-804-9259

361-992-3377

864-963-6322

770-436-3030

602-244-4545

847-545-6720

847-925-0899

847-390-4405

847-699-1194

402-563-6296

注意：在与这些元件供应商联系时，请说明您正在使用MAX8725。

2_______________________________________________________________________________________