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參數資料
| 型號： | MAX5911ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | -48V Simple Swapper Hot-Swap Switches |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 417K |
| 代理商： | MAX5911ESA |
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
°
C to +85
°
C. 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 ±5V with Respect to AGND
M
-48V Simple Swapper Hot-Swap Switches
________________________________________________________________
Maxim Integrated Products
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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
AGND
UVLO
POSITIVE
LOGIC
0.1
μ
F
3.3k
+3.3V
V
OUT
LOAD
V
IN
(-48V)
MAX5911
MAX5912
AGND
DGND
Typical Operating Circuit
19-1832; Rev 0a; 1/01
Ordering Information
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
PART
TEMP. RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
8 SO
16 SO
MAX5911
ESA
MAX5912
ESE
IP Phones
Network Routers
Network Switches
Internet Appliances
Power-Over-LAN
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|---|---|
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| MAX5913 | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| MAX5913EMH | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| MAX5914EMH | +48V Quad Hot-Swap Controllers For Power-Over-LAN |
| MAX6018 | ER 9C 9#16 SKT PLUG |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5911ESA+ | 功能描述:熱插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5911ESA+T | 功能描述:熱插拔功率分布 48V- Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5911ESA-T | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝: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:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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