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| 型号： | MAX5911ESA |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/8页 |
| 文件大小： | 417K |
| 描述： | IC SW HOTSWAP -48V SWAPPER 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 系列： | Simple Swapper™ |
| 类型： | 热交换开关 |
| 应用： | IP 电话，LAN 网络供电，网络路由器和交换机 |
| 内部开关： | 是 |
| 电流限制： | 280mA |
| 电源电压： | -16 V ~ -65 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
General Description
The MAX5911/MAX5912 are fully integrated hot-swap
switches for negative supply rails. These devices allow
the safe insertion and removal of circuit cards into live
backplanes or ports without causing problematic glitch-
es on the negative power-supply rail. They also monitor
various circuit parameters and disconnect the load if a
fault condition occurs, alerting the host with a logic-level
FAULT output. The MAX5911/MAX5912 operate over a
voltage range of -16V to -65V and are designed to permit
hot plugging of an IP phone into a hub, but are not limit-
ed to that operation.
During startup, an internal power FET regulates the cur-
rent between the backplane power source and the load
to 280mA for MAX5911 and 415mA for MAX5912. After
startup, the FET is fully enhanced to reduce its on-resis-
tance. To ensure robust operation, the MAX5911/
MAX5912 contain built-in safety features that prevent
damage to the internal FET. They include an enable
input, which responds to positive logic signals (+3.3V or
+5V), allowing the host system to disconnect the load.
ENABLE is also used to reset the device after a latching
fault condition occurs.
The MAX5911/MAX5912 Simple Swapper" hot-swap
ICs monitor four parameters for these fault conditions:
undervoltage lockout (UVLO), power-not-good, zero-
current detection, and thermal shutdown. These
devices are available in the extended temperature
range, -40癈 to +85癈. The MAX5911 and MAX5912
come in 8-pin and 16-pin SOIC packages, respectively.
Applications
Features
o Provides Safe Hot Swap for -16V to -65V Power
Supplies
o 280mA Current Limit for MAX5911
o 415mA Current Limit for MAX5912
o Zero-Current Load Disconnect
o Integrated Power FET
o Status Output Reports Fault Condition
o Internal Switch-Protection Circuitry
o Built-In Thermal Shutdown
o DGND Can Vary Up to ?/SPAN>5V with Respect to AGND
-48V Simple Swapper Hot-Swap Switches
________________________________________________________________ Maxim Integrated Products 1
AGND
ENABLE
DGND
1
2
8
7
UVLO
V
OUT
V
IN
FAULT
GATE
8 SO
TOP VIEW
3
4
6
5
MAX5911
V
OUT
V
IN
N.C.*
1
2
13
12
N.C.*
UVLO
N.C.*
16 SO
6
7
11
10
MAX5912
3
4
5
8
16
15
14
9
ENABLE
N.C.*
V
IN
AGND
V
IN
GATE
V
IN
N.C.*
DGND
FAULT
*THESE PINS ARE NOT INTERNALLY CONNECTED.
Pin Configurations
V
IN
FAULT
ENABLE
DGND
UVLO
AGND
POSITIVE
LOGIC
0.1礔
3.3k&
+3.3V
V
OUT
LOAD
V
IN
(-48V)
MAX5911
MAX5912
AGND
DGND
Typical Operating Circuit
19-1832; Rev 0a; 1/01
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
Ordering Information
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
PART
TEMP. RANGE
PIN-PACKAGE
MAX5911ESA
-40癈 to +85癈
8 SO
MAX5912ESE
-40癈 to +85癈
16 SO
IP Phones
Network Routers
Network Switches
Internet Appliances
Power-Over-LAN
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5913AEMH+ | IC HOT SWAP CTLR QUAD 48V 44MQFP |
| MAX5916EUI+ | IC HOT-SWAP CTRLR DUAL 28-TSSOP |
| MAX5917BESE+ | IC HOT-SWAP SWITCH 65V 16-SOIC |
| MAX5920BESA+ | IC HOT-SWAP CTRLR -48V 8-SOIC |
| MAX5922AEUI+ | IC NETWORK PWR SW +48V 28-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5911ESA+ | 功能描述:热插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5911ESA+T | 功能描述:热插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5911ESA-T | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5911EVKIT# | 制造商:Maxim Integrated Products 功能描述:MAX5911EVKIT# 制造商:Maxim Integrated Products 功能描述:Power Management IC Development Tools MAX5911EVKIT# |
| MAX5912ESE | 功能描述:热插拔功率分布 RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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