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參數資料
| 型號： | MAX5923EUP+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 1/12頁 |
| 文件大小： | 444K |
| 描述： | IC HOT-SWAP SWITCH +60V 20-TSSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 系列： | Simple Swapper™ |
| 類型： | 熱交換開關 |
| 應用： | 通用 |
| 內部開關： | 是 |
| 電流限制： | 800mA |
| 電源電壓： | 16 V ~ 60 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 20-TSSOP |
| 包裝： | 帶卷 (TR) |
General Description
The MAX5923 is a fully integrated Simple Swapper"
hot-swap switch for positive supply rails. The device
allows the safe insertion and removal of circuit cards
into live backplanes or ports without causing glitches
on the power-supply rail. The device also monitors vari-
ous circuit parameters and disconnects the load if a
fault condition occurs, alerting the host with a logic-
level FAULT output. The MAX5923 operates over the
+16V to +60V input voltage range.
During startup, an integrated 0.45& power MOSFET
regulates the current and voltage between the back-
plane power source and the load. After startup, the
MOSFET is fully enhanced to reduce its on-resistance.
To ensure robust operation, the MAX5923 contains
built-in safety features that monitor fault conditions and
prevent damage to the internal MOSFET.
The MAX5923 monitors three parameters for fault condi-
tions: zero current, overcurrent, and thermal overload.
The output overcurrent limit counts the time the MAX5923
spends in an overcurrent condition and shuts down the
pass transistor if the current limit is exceeded for the over-
current time limit. The zero-current detection counts the
time the output current is below the zero-current threshold
and shuts down the pass transistor if the counter reaches
the zero-current time limit. The thermal monitoring feature
shuts down the pass transistor if the die temperature
reaches the overtemperature limit. A fault logic output
indicates when an overtemperature or an overcurrent
condition has occurred and a zero-current logic output
indicates if there is a zero-current condition.
An undervoltage detection circuitry keeps the pass tran-
sistor off until the input voltage is above the undervoltage
lockout (UVLO) threshold, which is internally set or can be
set externally with a resistive divider. A power-OK (POK)
output is provided to signal when the output voltage has
reached to within 0.75V of the input voltage. An Enable
input allows the host system to disconnect the system
from the load and/or reset a fault condition by toggling
Enable.
The MAX5923 is available in a 20-pin TSSOP package
and operates in the extended -40癈 to +85癈 tempera-
ture range.
Applications
Features
o Wide Operating Input Range: +16V to +60V
o 0.45& Integrated Power Switch
o Programmable Output Current Up to 800mA
o Over/Undercurrent-Limit Detection
o Input Logic Signals Compatible with 1.8V to 5V
CMOS Logic
o Separate Analog and Digital Grounds with Up to
?V Offset
o Power-OK Status Output
o Overcurrent Protection with Status Outputs
o Built-In Thermal Shutdown
o Internal Switch Protection Circuitry
o Current-Limit Foldback with Timeout and Duty-
Cycle Control
o Latch or Autorestart Fault Management
+60V Simple Swapper Hot-Swap Switch
________________________________________________________________ Maxim Integrated Products 1
19-2850; Rev 0; 4/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
MAX5923EUP
-40癈 to +85癈
20 TSSOP
Ordering Information
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
R
PU
RPU
RPU
D1
+1.65V TO +5.5V
ON
OFF
R
SENSE
+16V TO +60V
MAX5923
IN
DRAIN
UVLO
ALL SIGNAL AND DIGITAL INPUTS/OUTPUTS ARE REFERENCED TO DGND.
DGND CAN BE ?V FROM AGND_S.
EN
AGND_S
DGND
POK
FAULT
ZC
ZC_EN
LATCH
VDIG
OUT
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
Network Routers/Switches
Current Limiter
Servers
Industrial Equipment
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5924AEUB | 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 |
| MAX5924AEUB+ | 功能描述:熱插拔功率分布 1-13.2V 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 |
| MAX5924AEUB+T | 功能描述:熱插拔功率分布 1-13.2V 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 |
| MAX5924AEUB-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 |
| MAX5924BEUB | 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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