参数资料
| 型号： | DS2129S+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/5页 |
| 文件大小： | 0K |
| 描述： | IC REGULATOR SCSI 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 应用： | 低压差分（LVD）SCSI，SPI-2，SPI-3 |
| 输入电压： | 2.7 V ~ 5.25 V |
| 输出数： | 3 |
| 输出电压： | 1.3V，0.75V，1.75V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
LVD SCSI 27-Line Regulator
Pin Description
Chip Information
TRANSISTOR COUNT: 3778 CMOS and 80 BIPOLAR
PIN
1, 8, 9,
10, 15,
NAME
N.C.
FUNCTION
No Connection. Do not connect pins.
PROCESS: BiCMOS
SUBSTRATE CONNECTED TO GROUND
Thermal Information
16
Termination Power. Connect to SCSI
Thermal Resistance (junction-to-ambient):
θ JA = +77°C/W
2
3
4
TERMPWR
REG2
GND
TERMPWR line and decouple with a
4.7μF ceramic capacitor.
Regulator 2, 0.75V Output. Decouple
with a 4.7μF ceramic capacitor.
Signal Ground
Thermal Resistance (junction-to-case):
θ JC = +25°C/W
Heat-Sink Ground. Internally
5, 11–14
6
7
HS_GND
REG1
DIFFSENSE
connected to the mounting pad.
Should be connected to ground.
Regulator 1, 1.75V Output. Decouple
with a 4.7μF ceramic capacitor.
DIFFSENSE Output. Drives the SCSI
bus DIFFSENSE line.
Detailed Description
The DS2129 provides three regulated outputs. The
REG1 provides a 1.75V output, and the REG2 provides
a 0.75V output. Both regulators can sink and source
200mA of current. These regulators are current-limited
to less than 700mA. The thermal-shutdown circuit dis-
ables the output buffers should the die temperature
exceed +150°C. With a pi network of resistors (475 Ω ,
121 Ω , 475 Ω ) connected to these two outputs, the
DS2129 provides common-mode bias, differential bias,
and common impedance and differential impedance,
as required in a terminator specified in SPI-2 and SPI-3
standards for a SCSI system. The third regulator pro-
vides a 1.3V output for DIFFSENSE signaling.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2129S/R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
| DS2129S/T | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
| DS2129S/T&R | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
| DS2129S+ | 功能描述:IC REGULATOR SCSI 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| DS2129S+R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:LVD SCSI 27-Line Regulator |
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