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参数资料
| 型号： | DS2125+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/7页 |
| 文件大小： | 0K |
| 描述： | IC TERM SCSI ULT3 LVD/SE 48-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 类型： | SCSI，LVD，SE |
| 端子数： | 15 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
DS2125 Ultra3 LVD/SE SCSI 15-Line Terminator
3 of 7
ELECTRICAL CHARACTERISTICS (continued)
(TPWR = 3.3V, TA = 0°C to +70°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VREF REGULATOR
2.85V Regulator Line
Regulation
VREF unloaded; vary TPWR from
4.0V to 5.5V
1.0
2.5
%
DIFFSENS OUTPUT
DIFFSENS Driver Output
Voltage
VDSO
-5mA
≤ IDFFSENS ≤ 50A
1.2
1.4
V
DIFFSENS Driver Source
Current
IDSH
VDIFFSENS = 0V
-15
-5
mA
DIFFSENS Driver Sink
Current
IDSL
VDIFFSENS = 3.3V
100
200
A
ILEAK, LOW
With ISO high, |VDIFFSENS| = 0.3V
-3
+1
DIFFSENS Leakage
(Note 3)
ILEAK, HIGH
With ISO high, |VDIFFSENS - VTPWR| =
0.3V
1
3
A
THERMAL SHUTDOWN
Thermal-Shutdown
Threshold
For increasing temperature
(Note 1)
150
°C
Thermal-Shutdown
Hysteresis
(Note 1)
10
°C
MODE CHANGE DELAY/FILTER
Mode Change Delay
tDELAY
0.66
1.25
2.00
ms
LOGICAL SIGNALS (ISO)
Input Low Voltage
VIL
-0.3
+0.8
V
Input High Voltage
VIH
2
TPWR
+ 0.3
V
Input Current
IIL
VCC = 3.3V
-30
-10
A
DIFF_CAP
Input Current
IL
VIL = -0.3V
-1
+1
A
DIFF_CAP SE
Operating Range
VSEOR
-0.3
+0.5
V
DIFF_CAP LVD
Operating Range
VLVDOR
0.7
1.9
V
DIFF_CAP HVD
Operating Range
VHVDOR
2.4
VTPWR +
0.3
V
Note 1: Guaranteed by design.
Note 2: TPWR = 4.0V.
Note 3: Room temperature only.
PIN DESCRIPTION
PIN
NAME
FUNCTION
1, 2, 11–26,
37–48
RxP, RxN
Signal Termination. Connect to SCSI bus signal lines.
3
TPWR
Termination Power. Connect to the SCSI TERMPWR line and decouple with a 2.2
F
capacitor.
4–9, 28–33
HS_GND
Heat-Sink Ground. Internally connected to the mounting pad. This should be grounded.
10
VREF
Reference Voltage. 2.85V reference in SE mode and 1.25V reference in LVD mode; must be
decoupled with a 4.7
F capacitor.
27
GND
Ground. Signal ground, 0V.
34
DIFF_CAP
DIFFSENSE Capacitor. Connect a 0.1
F capacitor for the DIFFSENSE filter. Input to detect
the type of device (differential or single-ended) on the SCSI bus.
35
DIFFSENSE
DIFFSENSE. Output to drive the SCSI bus DIFFSENS line.
36
ISO
Isolation. When pulled high, the DS2125 isolates its bus pins (RxN, RxP) from the SCSI bus.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2127 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultra3 LVD/SE SCSI 14-Line Terminator |
| DS2127/T&R | 制造商:Maxim Integrated Products 功能描述:14 LINE LVD/SE TERMINATOR T&R - Tape and Reel |
| DS2127+ | 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 |
| DS2127+T&R | 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE 48-LQFP |
| DS2127+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 |
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