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GM2526LS8R Datasheet

  • GM2526LS8R

  • DUAL USB POWER SWITCH

  • 9頁(yè)

  • ETC

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MICROELECTRONICS
A
A
Power Management
GM2526
DUAL USB POWER SWITCH
Power Management
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 110碌A(chǔ) (typ.)
OFF-State Supply Current 0.75碌A(chǔ) (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
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鈥檚 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.
Application
USB Power Management
USB Host- and Self-Powered Hubs
USB Bus-Powered Hubs
Hot Plug-In Power Supplies
Battery-Charger Circuits
CONNECTION DIAGRAM
8 OUTA
ENA/ ENA 1
FLGA 2
LOGIC,
CHARGE
PUMP
7 IN
ENB/ ENB 4
5 OUTB
6
GND
GM2526 H/ L
www.gammamicro.com
PRELIMINARY
GM2526
V0.1
1
FLGB 3
LOGIC,
CHARGE
PUMP

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