参数资料
| 型号： | DS9490R# |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/6页 |
| 文件大小： | 0K |
| 描述： | IC BRIDGE USB TO 1-WIRE RJ11 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| RoHS指令信息： | IButton RoHS Compliance Plan |
| 标准包装： | 1 |
| 附件类型： | USB 至 1-Wire? RJ11 适配器 |
| 适用于相关产品： | 1-Wire? 设备 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
DS9490R/DS9490B
ELECTRICAL CHARACTERISTICS
DS9490R/DS9490B
PARAMETER
USB I/F
1-Wire I/F
SPECIFICATION
As defined in Chapter 7 of the USB Specification*
See the DS2490 data sheet**
The DS9490R and DS9490B consume 58mA in USB active mode and 0.5mA in suspend mode*. The
DS9490R has the V BUS power and ground available on the RJ11 connector. In active mode the current
available to an externally powered fixture is 42mA* (100mA to 58mA); however it is recommended that
no more than 25mA be used. An external circuit can detect when the module is in suspend by monitoring
the SUSO signal on Pin 5 of the RJ11 connector. When this condition is detected, the external circuit must
also go into a low power state. NOTE : The SUSO pin of the DS2490 is an open drain output and requires
a pullup resistor to create a valid signal. See the DS2490 data sheet for the conditions where SUSO is
active. Revision C of the DS9490R and all revisions of the DS9490R# have SUSO routed to the RJ11
connector. The availability of SUSO at the RJ11 connector is not production tested. Therefore, before
relying on SUSO in an application, first verify the presence of this signal with the particular adapter.
*Guaranteed by design, not production tested.
**Tested at DS2490 component level.
Figure 8. FUNCTIONAL DIAGRAM
L1
USB
Connector
VBUS
D-
D+
GND
J1
1
2
3
4
EMI Filter
EMI Filter
L2
C2
1.0uF
1
3
4
LP2980IM5-3.3
VIN VOUT
EN
N/C GND
U1
5
2
C3
4.7
C7
33pF
R1
1.5K
R2 24
R3 24
C8
33pF
1
5
7
8
10
12
DS2490
PMOD
NC
NC
NC
VB
SUSO
D-
D+
NC
OW
NC
GND
C1
0.1uF
U2
VD
NC
NC
NC
X1
X0
NC
VPP
NC
NC
NC
NC
24
19
20
17
3
C6
33pF
1
X1
12Mhz
C5
33pF
DS2401
U3
OW
GND
2
1
6
5
DS9503
OW
GND
U4
1
2
R7 10
Female RJ11
1
2
3
4
5
6
J2
DS9490R
iButton Socket
1
2
J3
DS9490B
5 of 6
相关PDF资料 |
PDF描述 |
|---|---|
| DST1E1DK | KIT DESIGN SCT T1/E1 DS21X5Y |
| DV103003 | KIT DEV MICROID 13.56MHZ |
| DV164126 | KIT DEVELOPMENT USB W/PICKIT 2 |
| DV164133 | Energy Harvesting Development |
| DV243002 | KIT DEVELOPMENT DESIGNER SEEPROM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS9490R# | 功能描述:界面模块 USB:1-Wire/iButton Adapter RoHS:否 制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度: |
| DS9490R_11 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:USB to 1-Wire/iButton Adapters High-Speed 12Mbps Universal Serial Bus (USB) Interface |
| DS9490R-E00 | 功能描述:界面模块 RoHS:否 制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度: |
| DS9502 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:ESD Protection Diode |
| DS9502P | 功能描述:TVS二极管阵列 RoHS:否 制造商:Littelfuse 极性: 通道:4 Channels 击穿电压: 钳位电压:11.5 V 工作电压:2.5 V 峰值浪涌电流:20 A 安装风格:SMD/SMT 端接类型:SMD/SMT 系列: 最小工作温度:- 40 C 最大工作温度:+ 85 C |
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