MAX1922 Maxim, MAX1922 Datasheet
MAX1922
Available stocks
Related parts for MAX1922
MAX1922 Summary of contents
Page 1
... This blanking also prevents an OC signal from being issued when the device is powering up. The MAX1922 has several safety features to ensure that the USB port is protected. Built-in thermal-overload pro- tection limits power dissipation and junction tempera- ture. The device also has accurate internal current- limiting circuitry to protect the input supply against overload ...
Page 2
... OUT Short-Circuit to GND ..........................................Continuous Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
Page 3
Current-Limited Switch for 2 USB Ports ELECTRICAL CHARACTERISTICS (continued 5V 0°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL OC Off-State Current OC Blanking Timeout Period THERMAL SHUTDOWN Thermal ...
Page 4
Current-Limited Switch for 2 USB Ports (Circuit of Figure 5V +25°C, unless otherwise noted QUIESCENT CURRENT vs. INPUT VOLTAGE OUT ...
Page 5
... RESISTOR LOAD CURRENT 0 SHORT-CIRCUIT CURRENT LIMIT 5V 1ms/div CURRENT-LIMIT RESPONSE MAX1922 toc11 V AC-COUPLED IN 500mV/div V , 5V/div OUT V , 5V/div 2A/div OUT 4μs/div SWITCH TURN-OFF TIME MAX1922 toc13 V , 5V/div OUT V , 5V/div 5V/div OUT 500mA/div 1μs/div V 5V/div OUT V 5V/div EN I 1A/div ...
Page 6
... If the fault short-circuit condi- tion is not removed, the switch cycles on and off, result- ing in a pulsed output. The MAX1922 provides an overcurrent output (OC). A 1.24V 100kΩ pullup resistor from provides a logic control signal. This open-drain output goes low when any of the following conditions occur: • ...
Page 7
... This induc- tance causes the output voltage at the USB port to ring during a load step. The MAX1922 is capable of driving inductive loads, but avoid exceeding the device’s absolute maximum ratings. Usually the load inductance ...
Page 8
... Current-Limited Switch for 2 USB Ports Pin Configurations (continued) TOP VIEW MAX1922 + TDFN 8 _______________________________________________________________________________________ PROCESS: BiCMOS 6 For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE TDFN-EP 5 Chip Information Package Information PACKAGE CODE DOCUMENT NO ...
Page 9
... Fixed typo Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © ...