參數(shù)資料
型號(hào)： MAX1558HETB+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 0K
描述： IC CURR-LIM SW DUAL PROG 10-TDFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
應(yīng)用： USB
接口： USB
電源電壓： 2.75 V ~ 5.5 V
封裝/外殼： 10-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 10-TDFN-EP（3x3）
包裝： 帶卷 (TR)
安裝類型： 表面貼裝
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
General Description
The MAX1558/MAX1558H are dual, current-limited
switches with autoreset for USB applications. Autoreset
latches the switch off if it is shorted for more than 20ms,
saving system power. The shorted output is then tested
to determine when the short is removed to automatically
restart the channel. Each channel delivers up to 1.2A
and meets all IEC specifications for USB ports. Low
quiescent supply current (45A) and standby current
(3A) conserve battery power in portable applications.
The MAX1558/MAX1558H safety features ensure that the
USB port is protected. Built-in thermal-overload protection
limits power dissipation and junction temperature.
Accurate, programmable current-limiting circuitry pro-
tects the input supply against both overload and short-cir-
cuit conditions. 20ms fault blanking enables the circuit to
ignore transient faults, such as those caused when hot
swapping a capacitive load, preventing false alarms to
the host system. The MAX1558/MAX1558H also feature
reverse-current protection circuitry to block current flow
from the output to the input when the switches are off.
The MAX1558/MAX1558H are available in space-sav-
ing 3mm x 3mm, 10-pin TDFN packages. The MAX1558
is enabled with an active-low signal, and the
MAX1558H is enabled with an active-high signal.
Applications
USB Ports and Hubs
Notebook Computers and Desktops
PDAs and Palmtop Computers
Docking Stations
Features
55mΩ Switch Resistance
Tiny 10-Pin, 3mm x 3mm TDFN Package
14% Accurate Current Limit
Autorestart when Fault is Removed
Programmable Current Up to 1.2A
Thermal-Overload Protection
Built-In 20ms Fault Blanking
Compliant to All USB Specifications
2.7V to 5.5V Supply Range
Independent-Output Fault Indicators
Block Reverse Current when Disabled
15kV ESD Protection (with Capacitor)
UL Recognized: UL# E211395
MAX1558/MAX1558H
Dual, 3mm x 3mm, 1.2A/Programmable-Current
USB Switches with Autoreset
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-3128; Rev 2; 3/08
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX1558ETB+
-40
°C to +85°C
10 TDFN
(3mm x 3mm)
AAR
MAX1558HETB+
-40
°C to +85°C
10 TDFN
(3mm x 3mm)
AAS
MAX1558
INPUT
2.7V TO 5.5V
INA
INB
ISET
FLTA
FLTB
ONA
ONB
ONA
ONB
OUTA
OUTB
GND
USB
PORT A
USB
PORT B
Typical Operating Circuit
23
98
TDFN
3mm x 3mm
TOP VIEW
45
76
1
MAX1558
(MAX1558H)
10
ISET
INA
INB
ONA
(ONA)
ONB
(ONB)
OUTA
GND
OUTB
FLTA
FLTB
+
Pin Configuration
+
Denotes a lead-free package.
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