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参数资料
| 型号： | SI3402ISO-EVB |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 15/22页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL POE ISOL FOR SI3402 |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，以太网供电（POE） |
| 输出及类型： | 1，隔离 |
| 输出电压： | 5V |
| 输入电压： | 44 ~ 57 V |
| 稳压器拓扑结构： | 回扫 |
| 频率 - 开关： | 350kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板，CD |
| 已用 IC / 零件： | Si3402 |
| 其它名称： | 336-1828 |
Si3402
4. Pin Descriptions
EROUT
1
20
19
18
17
16
15
14
CT1
SSFT
2
VNEG
13 CT2
VDD
3
(PAD)
12
VPOSF
ISOSSFT 4
11
SP1
5
6
7
8
9
10
Table 11. Si3402 Pin Descriptions (Top View)
Pin#
1
2
3
4
5
6
7
8
9, Pad
10
11
12
13
14
15
16
17
18
19
20
Name
EROUT
SSFT
VDD
ISOSSFT
PLOSS
RDET
HSO
RCL
VNEG
SP2
SP1
VPOSF
CT2
CT1
VSSA
VPOSS
VSS1
SWO
VSS2
FB
Description
Error-amplifier output and PWM input; directly connected to opto-coupler in isolated application.
Soft-start output pin ramps voltage across external soft-start capacitor to allow switcher to ramp
output slowly.
5 V supply rail for switcher; provides drive for opto-coupler.
Isolated mode soft start enable input.
Early power loss indicator; open drain output is pulled to VPOS when VPORT is applied.
Input pin for external precision detection resistor; also used for establishing absolute current
reference.
Hotswap switch output; connects to VNEG through hotswap switch.
Input pin for external precision classification resistor; float if optional RCLASS is unused.
Rectified high-voltage supply, negative rail. Must be connected to thermal PAD node (VNEG)
on package bottom. This thermal pad must be connected to VNEG (pin #9) as well as a 2 in 2
heat spreader plane using a minimum of nine thermal vias.
High-voltage supply input from spare pair; polarity-insensitive.
High-voltage supply input from spare pair; polarity-insensitive.
Rectified high-voltage supply, positive rail (force node)
High-voltage supply input from center tap of Ethernet transformer; polarity-insensitive.
High-voltage supply input from center tap of Ethernet transformer; polarity-insensitive.
Analog ground.
Rectified high-voltage supply, positive rail sense node.
Negative supply rail for switcher; externally tied to HSO.
Switching transistor output; drain of switching N-FET.
Negative supply rail for switcher; externally tied to HSO.
Regulated feedback input in non-isolated application.
Rev. 1.31
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI3403-A-GM | 制造商:Silicon Laboratories Inc 功能描述:POE POWERED DEVICE (UP TO 17W, LOW-EMI) - RECOMMENDED FOR AL - Trays 制造商:Silicon Laboratories Inc 功能描述:IC POE CTLR TO 17W LOW EMI 20QFN 制造商:Silicon Laboratories Inc 功能描述:PoE Powered Device (up to 17W, low-EMI) |
| Si3403-A-GMR | 制造商:Silicon Laboratories Inc 功能描述:POE POWERED DEVICE (UP TO 17W, LOW-EMI) - RECOMMENDED FOR AL - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:PoE Powered Device (up to 17W, low-EMI) |
| SI3403DV-T1-E3 | 功能描述:MOSFET 20V 5.0A 3.2W RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI3403DV-T1-GE3 | 功能描述:MOSFET 20V 5.0A 3.2W 70mohm @ 4.5V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI3407DV | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:P-Channel 20-V (D-S) MOSFET |
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