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MAX774IRGEVKIT

更新时间： 2024-11-17 23:51:55

品牌	Logo	应用领域
美信 - MAXIM		综合业务数字网
页数	文件大小	规格书
8页	1038K
描述
ISDN.Ring-Tone.Power Supply Evaluation Kit

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中文翻译

获取价格

数据手册

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MAX774IRGEVKIT 数据手册

19-1287; Rev 0; 9/97

MAX7 7 4 IS DN, Rin g -To n e ,

P o w e r-S u p p ly Eva lu a t io n Kit

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX774 ISDN ring-tone power-supply (IRG) evalua-

tion kit (EV kit) provides the high voltages required for

implementing a plain old telephone system (POTS) inter-

face on ISDN modems and line cards. It is a fully assem-

bled and tested board that provides a tightly regulated,

-24V output for powering off-hook voice communication

and a -70V output for on-hook, ring-tone generation.

ꢀ +3V to +16.5V Operating Range

ꢀ Tightly Regulated, -24V Output for Off-Hook

Voice Communication

ꢀ -70V Output Supports a Five-Ringer-Equivalent

Load (V > 10.5V)

ꢀ Compact Construction

The EV kit is designed for applications that implement

the telephone interface using subscriber line interface

circuit (SLIC) ICs, such as the AM79R79 from AMD and

comparable products from Lucent, Harris, and other

vendors. Its design feeds back the -24V output, achiev-

ing tight regulation for clean voice-signal transmission.

An economical, off-the-shelf, surface-mount transformer

reduces system cost and size. Compact design con-

serves board area. High efficiency and reduced quies-

cent current make this design the optimal solution for

green PC and portable designs.

ꢀ Proven PC Board Design

ꢀ Uses Off-the-Shelf Components

ꢀ Up to 84% Efficiency

ꢀ 5µA Shutdown Current

ꢀ Fully Assembled and Tested

The MAX774 IRG EV kit can also be used to evaluate

the MAX775/MAX776. It has a layout that allows modifi-

cation for -48V output operation as well as adaptation

for lower-voltage European applications.

______________Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

BOARD TYPE

Caution: Touching the MAX774 IRG EV kit’s -70V

output can result in electrical shock. Do not touch

the -70V output during operation or for five minutes

after operation. Maxim assumes no liability for

injury or damage resulting from unsafe operation of

this EV kit.

Mixed Surface Mount

and Through-Hole

MAX774IRGEVKIT

0°C to +70°C

_____________________________________________________________Co m p o n e n t Lis t

DESIGNATION QTY

DESCRIPTION

DESIGNATION QTY

DESCRIPTION

100pF, 100V ceramic capacitor

1nF, 50V ceramic capacitor

0.1µF, 50V ceramic capacitors

0.33µF, 25V ceramic capacitor

1A, 200V, ultra-fast diode

Nihon EC11FS2

10µH, 3.2A transformer

Coiltronics VP2-0216

C3, C7

60V, R

P-MOSFET (D-PAK)

Motorola MTD20P06HDL

= 0.15Ω

DS(ON)

68µF, 20V, low-ESR tantalum capacitors

AVX TPSE686M020R0150

C5, C6

0.1µF, 100V ceramic capacitor

1MΩ, 1% resistor

220µF, 35V, low-ESR

aluminum-electrolytic capacitor

Sanyo 35CV220GX

63.4kΩ, 1% resistor

68mΩ, 1/2W, metal-strip resistor

Dale WSL-2010-R068-F

120µF, 63V, low-ESR

aluminum-electrolytic capacitor

Sanyo 63MV120GX

330kΩ, 100V, 5% resistor

8.2kΩ, 5% resistors

C10

R5, R6

Inverting controller IC (8 SO)

Maxim MAX774CSA

1A, 100V Schottky diode

Motorola MBRS1100T3

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

12 3 4 5 6 7 8

中文翻译

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与MAX774IRGEVKIT相关器件

型号	品牌	获取价格	描述	数据表
MAX774-MAX776	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX774MJA	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX775	MAXIM	获取价格	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers
MAX77501	ADI	获取价格	110VPK-PK、高效、压电触控式执行器升压驱动器
MAX77503	ADI	获取价格	14V输入、1.5A、高效Buck转换器，9μA IQ
MAX77503AEWC+	MAXIM	获取价格	Switching Regulator,
MAX77504	MAXIM	获取价格	14V Input, 3A High-Efficiency Buck Converter in WLP or QFN
MAX77504	ADI	获取价格	14V输入、3A、高效Buck转换器，采用WLP或QFN封装
MAX77504AAFC+T	MAXIM	获取价格	14V Input, 3A High-Efficiency Buck Converter in WLP or QFN
MAX77504AAWE+	MAXIM	获取价格	Sense Points for High-Accuracy Measurements

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