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參數資料
| 型號： | MAX1812EUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual USB Switch with Fault Blanking |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | MICRO MAX PACKAGE-10 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 296K |
| 代理商： | MAX1812EUB |
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.
General Description
The MAX1812 is a dual current-limited switch specifi-
cally made for USB applications. Each channel is guar-
anteed to supply 500mA and meets USB specifications.
The MAX1812’s low quiescent supply current (45μA)
and shutdown current (3μA) conserve battery power in
portable applications.
The MAX1812 has multiple safety features to ensure
that the USB port is protected. Built-in thermal-overload
protection limits power dissipation and junction temper-
ature. The device also has accurate internal current-lim-
iting circuitry to protect the input supply against both
overload and short-circuit conditions. Independent fault
signals (
FAULTA
and
FAULTB
) notify the microproces-
sor when a thermal-overload, current limit, undervoltage
lockout, or short-circuit fault occurs. A 20ms fault-blank-
ing feature enables the circuit to ignore momentary
faults, such as those caused when hot-swapping a
capacitive load, thereby preventing false alarms to the
host system.
The MAX1812 is available in a space-saving 10-pin
μMAX package. For single versions of this device, refer
to the MAX1693, MAX1694, and MAX1607 data sheets.
________________________Applications
USB Ports
USB Hubs
Notebook Computers
Desktop Computers
PDAs and Palmtop Computers
Docking Stations
Features
o
Dual USB Switch in Tiny 10-Pin μMAX Package
o
Guaranteed 500mA Load per Channel
o
Built-In 20ms Fault Blanking
o
Compliant to USB Specifications
o
+4.0V to +5.5V Input Voltage Range
o
45μA Quiescent Current
o
3μA Shutdown Current
o
Independent Shutdown Control
o
Independent
FAULT
Indicator Outputs
o
Thermal-Overload Protection
o
UL Listing Pending
M
Dual USB Switch with Fault Blanking
________________________________________________________________
Maxim Integrated Products
1
Pin Configuration
ONB
ONB
ONA
ONA
GND
MAX1812
FAULTB
FAULTA
IN
INA
INB
USB
PORT A
OUTA
USB
PORT B
OUTB
INPUT
4.0V TO 5.5V
Typical Operating Circuit
19-1865; Rev 0; 11/00
1
2
3
4
5
10
9
8
7
6
OUTA
GND
OUTB
INB
IN
INA
MAX1812
μ
MAX
TOP VIEW
ONA
ONB
FAULTB
FAULTA
Ordering Information
TEMP. RANGE
-40
°
C to +85
°
C
PART
PIN-PACKAGE
10
μ
MAX
MAX1812EUB
相關PDF資料 |
PDF描述 |
|---|---|
| MAX1817 | Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP |
| MAX1817EUB | Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP -40 to 85 |
| MAX1822 | High-Side Power Supply |
| MAX1822ESA | High-Side Power Supply |
| MAX1823 | Dual USB Switch with Fault Blanking and Autoreset |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1812EUB+ | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blanking RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1812EUB+T | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blanking RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1812EUB-T | 功能描述:電源開關 IC - USB Dual USB Switch w/Fault Blanking RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX1813EEI | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1813EEI+ | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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