Datasheet > DS2129S

DS2129S

更新时间： 2024-11-25 04:15:11

品牌	Logo	应用领域
达拉斯 - DALLAS		调节器
页数	文件大小	规格书
5页	158K
描述
LVD SCSI 27-Line Regulator

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数据手册

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DS2129S 数据手册

Rev 1; 2/06

LVD SCSI 27-Line Regulator

General Description

Features

The DS2129 is a triple-output voltage regulator for

27-line, low-voltage-differential (LVD) SCSI termination

for SPI-2 and SPI-3 applications using LVD termination

networks. The device provides reference voltages and

bias currents for LVD-termination resistor pi (π) net-

works. With a pi network (475Ω, 121Ω, 475Ω), the

DS2129 meets the common-mode bias, differential

bias, and termination-impedance requirements of SPI-2

(Ultra2) and SPI-3 (Ultra3). The device also provides a

1.3V output for DIFFSENSE signaling, and includes pro-

tection features such as thermal shutdown and active

current limiting.

♦ Fully Compliant with SPI-2 and SPI-3

♦ 2.7V to 5.25V Operation

♦ Differential Fail-Safe Bias

Ordering Information

Applications

SCSI Array Backplane

SCSI Cables

PIN-

PACKAGE

TOP

MARK**

PART*

DS2129S

VOLTAGE (V)

16 SO

DS2129

DS2129S+

Block Diagram

DS2129S/T&R

DS2129S+T&R

+Denotes lead-free package.

*All devices rated for the commercial (0°C to +70°C) tempera-

ture range.

TERMPWR

**A “+” anywhere on the topmark denotes a lead-free package.

PTAT

THERMAL

SHUTDOWN

BANDGAP

(1.25V)

REF125

DS2129

REFERENCES

REF175

REF130

1.75V

Pin Configuration

REG1

TOP VIEW

N.C.

16 N.C.

TERMPWR

REG2

15 N.C.

0.75V

1.3V

14 HS_GND

13 HS_GND

12 HS_GND

11 HS_GND

10 N.C.

REG2

DS2129

GND

HS_GND

REG1

REF075

GND

DIFFSENSE

N.C.

SO (150 mils)

______________________________________________ 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

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与DS2129S相关器件

型号	品牌	获取价格	描述	数据表
DS2129S/R	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S/T	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S/T&R	MAXIM	获取价格	Fixed Positive Standard Regulator, 3 Output, 0.75V1, 1.75V2, BICMOS, 0.150 INCH, MS-012, S
DS2129S/T&R	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S+	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S+R	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S+T	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2129S+T&R	MAXIM	获取价格	Fixed Positive Standard Regulator, 3 Output, 0.75V1, 1.75V2, BICMOS, 0.150 INCH, LEADFREE,
DS2129S+T&R	DALLAS	获取价格	LVD SCSI 27-Line Regulator
DS2-12A	IXYS	获取价格	Rectifier Diode Avalanche Diode