GM2526 Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – DUAL USB POWER SWITCH

AA
MICROELECTRONICS
Power Management
GM2526
DUAL USB POWER SWITCH
Power Management
Description
GM2526 is a dual high-side integrated power switch with in-
dependent enable and flag functions, designed for self-
powered and bus-powered Universal Serial Bus (USB) ap-
plications. GM2526 requires few external components.
Each of the two switch channels supply up to 500mA as
required by USB downstream devices. Each switch’s low
on-resistance meets USB voltage drop requirements. Fault
current is 750mA (typical). A flag output indicates fault
conditions to the local USB controller. The soft-start feature
prevents the transient voltage drop on the upstream port
that can occur when the switch is enabled in bus-powered
applications. Thermal shutdown protection prevents switch
failure from high-current loads. Undervoltage lockout
(UVLO) hold GM2526 off unless there is a correct input
voltage. GM2526 has 3.3V and 5V logic-compatible Enable
inputs.
GM2526 is available in Active-High and Active-Low
versions, and comes in 8-pin DIP and SOIC packages.
Features
Compliant to USB Specifications
Two Independent Switches
Input from 3V to 5.5V
Min. Continuous Load Current 500mA per port
Max. ON-Resistance 140mW
Max. Short Circuit Current Limit 1.25A
Individual Open-Drain Fault Flag Pins
ON-State Supply Current 110µA (typ.)
OFF-State Supply Current 0.75µA (typ.)
Thermal Shutdown
Undervoltage Lockout (UVLO) Typically 2.4V
1ms Turn-ON (soft-start) and Fast Turn-OFF
Active-High or Active-Low Enable Versions
Application
USB Power Management
USB Host- and Self-Powered Hubs
USB Bus-Powered Hubs
Hot Plug-In Power Supplies
Battery-Charger Circuits
CONNECTION DIAGRAM
ENA/ ENA 1
FLGA 2
LOGIC,
CHARGE
PUMP
FLGB 3
ENB/ ENB ⁴
LOGIC,
CHARGE
PUMP
6
GND
GM2526 H/ L
8 OUTA
7 IN
5 OUTB
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PRELIMINARY