Datasheet4U Logo Datasheet4U.com

MAX1922 - 1A Current-Limited Switch

General Description

The MAX1922 current-limited 70mΩ switch with built-in fault blanking provides an accurate, preset 1.4A to 2.1A current limit, making it ideal for dual USB applications.

Its low quiescent supply current (16µA) and standby current (1µA) conserve battery power in portable applications.

Key Features

  • to ensure that the USB port is protected. Built-in thermal-overload protection limits power dissipation and junction temperature. The device also has accurate internal currentlimiting circuitry to protect the input supply against overload. The MAX1922 is offered in a space-saving 8-pin SO package and a 10-pin TDFN package and operates over the extended (-40°C to +85°C) temperature range. PART MAX1922ESA+ MAX1922ETB+ Features o Accurate Current Limit (1.4A min, 2.1A max) o 10ms Internal OC Blank.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MAX192 Low-Power / 8-Channel / Serial 10-Bit ADC Maxim
MAX1920 400mA Step-Down DC-DC Converters Maxim Integrated
MAX1921 400mA Step-Down DC-DC Converters Maxim Integrated
MAX1924 Advanced Li+ Battery-Pack Protectors Maxim
MAX1927 PWM Step-Down DC-DC Converters Maxim

Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1907A Quick-PWM Master Controllers
MAX1908 Low-Cost Multichemistry Battery Chargers
MAX1909 Multichemistry Battery Charger
MAX19191 8-Bit ADC
MAX19192 Dual 8-Bit ADC

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-2254; Rev 3; 4/09 1A Current-Limited Switch for 2 USB Ports General Description The MAX1922 current-limited 70mΩ switch with built-in fault blanking provides an accurate, preset 1.4A to 2.1A current limit, making it ideal for dual USB applications. Its low quiescent supply current (16µA) and standby current (1µA) conserve battery power in portable applications. The MAX1922 operates with inputs from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. An overcurrent signal (OC) notifies the microprocessor that the internal current limit has been reached. A 10ms overcurrent-blanking feature allows momentary faults (such as those caused when hot-swapping into a capacitive load) to be ignored, thus preventing false alarms to the host system.