MAX1558, MAX1558H:Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset

Smallest Dual USB Switches with Up to 1.2A Current per Channel in a 3mm x 3mm TDFN Package

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 (45µA) and standby current (3µA) 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 protects the input supply against both overload and short-circuit 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-saving 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.

Key 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)
MAX1558, MAX1558H: Typical Operating Circuit
MAX1558, MAX1558H: Typical Operating Circuit
Applications/Uses
  • Docking Stations
  • Notebook Computers and Desktops
  • PDAs and Palmtop Computers
  • USB Ports and Hubs
DataSheet
titleDownload file
MAX1558-MAX1558H Data SheetMAX1558-MAX1558H.pdf
Parametrics
Part NumberUSBPower SwitchesCurrent Limit
(mA)
Current Limit
(mA)
Fault IndicatorCurrent Limit Accuracy
(%)
Current Limit Set ByLowest Adj. Setting
(A)
RON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypminmaxSee Notes
MAX1558Yes25001200Yes15Resistor0.50.0552.75.5-40 to +85TDFN-EP/10$1.10 @1k
MAX1558HTDFN-EP/10
Quality and Environmental Data
Related Products
  • MAX8586:Single 1.2A USB Switch in 3mm x 3mm TDFN
  • MAX1562:Programmable, 4A, USB, Current-Limited Switches with Autoreset and Fault Blanking
  • MAX1563:Programmable, 4A, USB, Current-Limited Switches with Autoreset and Fault Blanking
  • MAX1940:Triple USB Switch with Autoreset and Fault Blanking
  • MAX1946:Single USB Switch with Autoreset and Fault Blanking in Tiny TDFN
  • MAX1823:Dual USB Switch with Fault Blanking and Autoreset
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1558ETB+ActiveTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1558ETB+TActiveTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1558ETB-TNo Longer AvailableMAX1558ETB+TTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CNo
MAX1558EVKIT#No Longer AvailableEVKIT;-40°C to +85°CSee data sheet
MAX1558HETB+TActiveTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CLead Free
MAX1558HETB-TNo Longer AvailableMAX1558HETB+TTDFN-EP,;10 pin;9.6 mm²-40°C to +85°CNo
MAX1558-MAX1558H.pdf MAX1558H
MAX1558-MAX1558H_cn.pdf MAX1558H
Automotive USB Power MAX1558
MAX1558.pdf MAX1558
MAX1558H.pdf MAX1558H
MAX1558-MAX1558H_cn.pdf MAX1558H