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参数资料
| 型号： | SI3460-E03-GM |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC POWER MANAGEMENT CTLR 11VQFN |
| 标准包装： | 122 |
| 应用： | 供电设备（PSE） |
| 电流 - 电源： | 500mA |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 供应商设备封装： | 11-QFN（3x3） |
| 包装： | 管件 |
Si3460
IEEE 802.3af PSE I NTERFACE
Features
AND
DC-DC C ONTROLLER
?
IEEE 802.3af? compliant PSE and
?? Robust
3-point detection
Pin Assignments
dc-dc controller
algorithm eliminates false
?
Autonomous operation requires no
detection events
?
host processor interface
Complete reference design
available, including Si3460 controller,
?? IEEE-compliant classification
?? IEEE-compliant disconnect
?? Inrush current control
Si3460
PSE firmware, and schematic:
?? Low-cost BOM with compact PCB
footprint
?? Short-circuit output fault
protection
?? LED status signal (detect,
GATE
CTRL1
1
2
10
9
STATUS
ISENSE
?? Operates directly from a +12 or
power good, output fault)
VDD
3
GND
8
RST
+15 V isolated supply
?? DC-DC controller generates –48 V
?
UNH Interoperability Test Lab test
report available
CTRL2
250KHZ
4
5
7
6
VSENSE
DETA
PSE output for SELV compatibility ?
with telephony interfaces
Extended operating range
(–40 to +85 °C)
?? Supports up to 15.4 W maximum
output power (Class 0)
?
11-Pin Quad Flat No-Lead (QFN)
?? Tiny 3 x 3 mm PCB footprint;
11-pin QFN (3x3 mm)
Top View —Pads on bottom of package
Pb-free, RoHS-compliant
Applications
?
?
?
IEEE 802.3af endpoints and
midspans
Environment A and B PSEs
Embedded PSEs
?
?
?
Set-top boxes
FTTH media converters
Cable modem and DSL
gateways
Description
The Si3460 is a single-port, –48 V power management controller for
IEEE 802.3af-compliant Power Sourcing Equipment (PSE). Designed
to minimize system cost and ease implementation in embedded PSE
endpoint (switches) or midspan (power injector) applications, the
Si3460 operates directly from a 12 or 15 V input supply and integrates
a digital PWM-based dc-dc converter for generating the –48 V PSE
output supply. The IEEE-required Powered Device (PD) detection
feature uses a robust 3-point algorithm to avoid false detection events.
The Si3460's reference design kit also provides full IEEE-compliant
classification and PD disconnect. Intelligent protection circuitry
includes input undervoltage lockout (UVLO), classification-based
current limiting, and output short-circuit protection. The Si3460 is
designed to operate completely independently of host processor
control. An LED status signal is provided to indicate the port status,
including detect, power good, and output fault event information for
use within the host system. The Si3460 is pin-programmable to
support endpoint and midspan applications as well as each of the
different classification power levels specified by the IEEE 802.3af
standard. A comprehensive reference design kit is available (Si3460-
EVB), including a complete schematic and BOM (Bill-of-Materials) for
the dc-dc converter and PSE functions.
Rev. 1.2 3/13
Copyright ? 2013 by Silicon Laboratories
Si3460
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI3460-E03-GMR | 功能描述:PMIC 解决方案 Single-port PoE PSE I-face DC-DC Ctrlr RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| Si3460-EVB | 功能描述:电源管理IC开发工具 Si3460 PSE Eval Brd and Ref Design Kit 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 |
| SI3460-XYY-GM | 制造商:SILABS 制造商全称:SILABS 功能描述:IEEE 802.3af PSE INTERFACE AND DC-DC CONTROLLER |
| SI3461 | 制造商:SILABS 制造商全称:SILABS 功能描述:SINGLE-PORT IEEE 802.3AT POE/POE+ PSE INTERFACE |
| Si3461-E01-GM | 功能描述:电源开关 IC - POE / LAN Single-Port PoE / PoE+ PSE interface RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
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