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参数资料
| 型号： | MAX1823AEUB+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC SW USB DUAL W/FB 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 应用： | USB，外设 |
| 电流 - 电源： | 50µA |
| 电源电压： | 4 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 管件 |
19-1903; Rev 3; 10/03
Dual USB Switch with Fault
Blanking and Autoreset
General Description
The MAX1823 is a dual, current-limited switch with
autoreset specifically made for USB applications. The
autoreset feature latches the switch off if the output is
shorted, saving system power. The switch reactivates
when the short circuit is removed. Each channel is guar-
anteed to supply 720mA and meet USB specifications.
Low quiescent supply current (50μA) and standby current
(3μA) conserve battery power in portable applications.
The MAX1823 has multiple safety features to ensure
that the USB port is protected. Built-in thermal-overload
protection limits power dissipation and junction temper-
ature. Accurate internal current-limiting circuitry pro-
tects the input supply against both overload and
short-circuit conditions. Independent fault signals
( FAULTA and FAULTB ) notify the microprocessor (μP)
when a thermal-overload, current-limit, undervoltage-
lockout (UVLO), or short-circuit fault occurs. A 20ms
fault-blanking feature ignores momentary faults, such
as those caused when hot swapping a capacitive load,
preventing false alarms to the host system. The
MAX1823A/MAX1823B also block reverse current (cur-
rent from OUT_ to IN_) while in shutdown.
The MAX1823 is available in a space-saving 10-pin
μMAX package. The MAX1823/MAX1823A are enabled
Features
o Dual USB Switch in Tiny 10-Pin μMAX Package
o Autoreset Feature Saves Power
o Guaranteed 720mA Load per Channel
o Built-In 20ms Fault Blanking
o Compliant to USB Specification
o Blocks Reverse Current in Shutdown
(MAX1823A/MAX1823B)
o 4V to 5.5V Input Voltage Range
o Independent Shutdown Control
(MAX1823/MAX1823A—Active Low)
(MAX1823B/MAX1823H—Active High)
o Independent FAULT Indicator Outputs
o Thermal-Overload Protection
o 50μA Quiescent Current (Both Switches On)
o 3μA Standby Current
o UL Recognized
Ordering Information
with an active-low signal, and the MAX1823B/MAX1823H
are enabled with an active-high signal. For a single ver-
sion of this device, refer to the MAX1946 data sheet. For
a triple version, refer to the MAX1940 data sheet.
Applications
PART
MAX1823 EUB
MAX1823A EUB
MAX1823B EUB
MAX1823H EUB
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 μMAX
10 μMAX
10 μMAX
10 μMAX
USB Ports and Hubs
Notebook and Desktop Computers
PDAs and Palmtop Computers
Typical Operating Circuit
Docking Stations
INA
OUTA
USB
PORT A
IN
TOP VIEW
Pin Configuration
INPUT
4V TO 5.5V
INB
MAX1823
MAX1823A
*(ONA) ONA 1
INA 2
IN 3
MAX1823
MAX1823A
10 FAULTA
9 OUTA
8 GND
FAULTA
FAULTB
OUTB
USB
PORT B
INB 4
MAX1823B
MAX1823H
7
OUTB
ONA
ONA
*(ONB) ONB 5
6
FAULTB
ONB
ONB
GND
μ MAX
*( ) ARE FOR MAX1823B/MAX1823H.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
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|---|---|
| MAX1823AEUB+ | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1823AEUB+T | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1823AEUB-T | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1823BEUB | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1823BEUB+ | 功能描述:电源开关 IC - USB Dual USB Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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