- 您现在的位置：买卖IC网 > Sheet目录1211 > DM330023 (Microchip Technology)BOARD DEV DSPICDEM MCHV
Hardware
4.2.5
Fault Circuitry
In addition to the fault signal generated by the power module, the system can also
create a DC bus overcurrent fault.
DC Bus Overcurrent, this fault signal is generated when the maximum current limit of
15A is reached. The comparison of the threshold value and the actual current is done
by comparator U14. The threshold limit is set by R42 and R47. R69 is a shunt jumper
resistor that can disconnect the overcurrent fault from the dsPIC DSC.
Note:
4.2.6
The comparator is open-drained and needs an external pull-up resistor.
Both the power module output and the comparator output share this pull-up
resistor creating an OR condition at the output.
Isolation
The power supply used by the push buttons, communication ports, and the SKDE pro-
grammer/debugger is isolated from the power supply used by the power module or the
dsPIC DSC. An isolated 3.3V rail is generated from the digital 3.3V rail using a
DC-to-DC converter (U10). This converter provides galvanic isolation rated up to
1000 V DC /1 second.
4.2.7
Communication Ports
The power module stage board provides two methods for transmitting/receiving data to
and from the system. Both communication methods are powered using the isolated
3.3V rail.
UART-to-USB communication port is based on a PIC18LFJ2450 device with a serial
emulator firmware. This device translates the USB signals to dsPIC DSC UART com-
patible signals. The firmware used for this serial emulator is enclosed in the CD shipped
along with the unit. Isolation for the UART-to-USB communication port is provided by
U25.
UART-to-RS-232 communication port is based on a RS-232 transceiver (U9). This
device translates the dsPIC DSC UART signals to UART compatible signals. Isolation
for the UART-to-RS-232 communication port is provided by U25.
Shunt jumpers J2 and J3 select the communication port. Table 4-5 shows the possible
configurations.
TABLE 4-5:
COMMUNICATION PORT CONFIGURATION
Designator
J2
J3
Position
1-2
2-3
1-2
Description
Connects UART receive line to RX.
Connects USB receive line to RX.
Connects UART transmit line to TX.
? 2009 Microchip Technology Inc.
2-3
Connects USB transmit line to TX.
DS70605A-page 39
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
DMA-MC-XP-N2
IP CORE MCDMA CTLR XPGA ISPXPGA
DN-5002C
N-WAY ETHERNET SWITCH 8-PORT
DN-7006GS
WIRELESS LAN PCI ADAPTER
DN-7020
WIFI FINDER W/DISPLAY WLAN ADAPT
DN-93501-U/BL
CONN JCK RJ45 TOOL FREE CAT5E BK
DN-93501-U/B
CONN JCK RJ45 TOOL FREE CAT5E BU
DN-93501-U/R
CONN JCK RJ45 TOOL FREE CAT5E RD
DN-93501-U/WH
CONN JCK RJ45 TOOL FREE CAT5E WT
相关代理商/技术参数
DM330023
制造商:Microchip Technology Inc 功能描述:dsPICDEM MCHV Development Board
DM330023-2
功能描述:电源管理IC开发工具 dsPICDE MCHV-2
RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
DM-330-C
制造商:Greenlee Textron Inc 功能描述:DMM 1000V 10A RMS
DM3312X101R (2500 REEL)
制造商:Laird Technologies Inc 功能描述:IND CHIP BEAD 100OHM 100MHZ 10A - Tape and Reel
DM3312X101R-00
功能描述:FERRITE ULTRA HC 100 OHMS SMT RoHS:否 类别:滤波器 >> 铁氧体磁珠和芯片 系列:- 标准包装:1,000 系列:EMI1812 频率对应阻抗:120 欧姆 @ 100MHz 额定电流:200mA DC 电阻(DCR):最大 400 毫欧 滤波器类型:差模 - 单线 封装/外壳:1812（4532 公制） 安装类型:表面贴装 包装:带卷 (TR) 高度（最大）:0.069"（1.75mm） 尺寸/尺寸:0.177" L x 0.126" W（4.50mm x 3.20mm） 其它名称:Q1712807A
DM3312X101R-10
功能描述:电磁干扰滤波珠子、扼流圈和阵列 100ohms 100MHz
RoHS:否 制造商:AVX 阻抗: 最大直流电流:35 mA 最大直流电阻: 容差: 端接类型:SMD/SMT 电压额定值:25 V 工作温度范围:- 25 C to + 85 C 封装 / 箱体:0603 (1608 metric)
DM-333
制造商:Labfacility Limited 功能描述:SENSOR PT100 THIN FILM 2X10MM CL B 制造商:LABFACILITY 功能描述:SENSOR, PT100, THIN FILM, 2X10MM, CL B 制造商:LABFACILITY 功能描述:SENSOR, PT100, THIN FILM, 2X10MM, CL B; Sensing Temperature Min:-50C; Sensing Temperature Max:+600C; Approval Bodies:IEC; Approval Category:Class B; External Length / Height:10mm; External Width:2mm; Measuring Range:-50C to ;RoHS Compliant: Yes
DM-334
制造商:Labfacility Limited 功能描述:SENSOR PT100 THIN FILM 2X10MM CL A 制造商:Labfacility Limited 功能描述:SENSOR, PT100, THIN FILM, 2X10MM, CL A 制造商:Labfacility Limited 功能描述:SENSOR, PT100, THIN FILM, 2X10MM, CL A, Lead Length:10mm, Sensing Temperature Mi 制造商:Labfacility Limited 功能描述:SENSOR, PT100, THIN FILM, 2X10MM, CL A, Lead Length:10mm, Sensing Temperature Min:-50C, Sensing Temperature Max:+400C, Approval Bodies:IEC, Approval Category:Class A, External Length / Height:10mm, External Width:2mm, Material:Thin, RoHS Compliant: Yes