Products > Integrated Circuits (ICs) > Power Management ICs > MAX4794ETT+TG40
  • MAX4794ETT+TG40

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  • Package/Case :
  • QFN
  • Product Categories :
  • Current Regulation_Management
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 2186


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MAX4794ETT+TG40 Product Details

The MAX4789–MAX4794ETT+TG40 family of switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These analog switches have a low 0.2Ω on-resistance and operate from 2.3V to 5.5V input voltage range. They are available with guaranteed 200mA, 250mA, and 300mA current limits, making them ideal for SDIO and other load switching applications. When the switch is on and a load is connected to the port, a guaranteed blanking time of 14ms ensures that the transient voltages settle down. If after this blanking time the load current is greater than the current limit, the MAX4789, MAX4791, and MAX4793 enter a latch-off state where the switch is turned off and active-low FLAG is issued to the microprocessor. The switch can be turned on again by cycling the power or the ON pin.The MAX4790, MAX4792, and MAX4794ETT+TG40 have an autoretry feature where the switch turns off after the blanking time and then continuously checks to see if the overload condition is present. The switch remains on after the overload condition disappears. The MAX4789-MAX4794ETT+TG40 are available in 6-pin 3mm x 3mm TDFN and tiny space-saving 4-pin SOT143 packages. The MAX4789/MAX4791/MAX4793 are also available in a tiny 5-pin SOT23 package. For lower current current-limiting switches, refer to the MAX4785-MAX4788 data sheet.


  • Guaranteed Current Limit: 200mA, 250mA, 300mA
  • Thermal-Shutdown Protection
  • Reverse Current Protection
  • 0.2Ω On-Resistance
  • 14ms Guaranteed Blanking Time
  • Active-Low FLAG Function (MAX4789/MAX4791/MAX4793)
  • 80μA Supply Current
  • 8μA Latch-Off Current (MAX4789/MAX4791/MAX4793)
  • 0.01μA Shutdown Current
  • 2.3V to 5.5V Supply Range
  • Undervoltage Lockout
  • Fast Current-Limit Response Time (5μs)
  • TDFN and SOT23/SOT143 Packages


  • Cell Phones
  • Global Positioning Systems (GPS)
  • Handheld Devices
  • PDAs and Palmtop Devices
  • SDIO

MAX4794ETT+TG40 Block Diagram
(Picture: Diagram)

Technical Parameters

  • USB
  • -
  • Power Switches
  • 1
  • Data Switches
  • -
  • Current Limit (min) (mA)
  • 300
  • Current Limit (max) (mA)
  • 300
  • Fault Indicator
  • No
  • Current Limit Accuracy (%)
  • 20
  • Current Limit Set By
  • Preset
  • Lowest Adj. Setting (A)
  • -
  • Ron (typ) (\u03a9)
  • 0.2
  • Vsupply (min) (V)
  • 2.3
  • Vsupply (max) (V)
  • 5.5
  • Enable
  • H
  • Over Current Response
  • Auto-Retry
  • Indicator Output(s)
  • -
  • Reverse Current Response
  • Block when off ,Current limit when on
  • Automotive Short to Battery Protection (max)
  • -
  • Supported Charging Configurations
  • -
  • Oper. Temp. (\u00b0C)
  • -40 to +85
  • Industry Qualified
  • -
  • Package/Pins
  • SOT23/4 ,TDFN/6
  • Smallest Available Pckg. (max w/pins) (mm2)
  • 8
  • RoHS Available
  • Yes
  • Budgetary Price (See Notes)
  • $1.32 @1k

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Q: How does Jotrin guarantee that MAX4794ETT+TG40 is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their MAX4794ETT+TG40 devices; we pay more attention to the channels and quality of MAX4794ETT+TG40 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX4794ETT+TG40 chips? Including MAXIM original factory information, Current Regulation_Management application, MAX4794ETT+TG40 pictures?
You can use Jotrin's intelligent search engine, or filter by Current Limit and USB Power Switches category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's MAX4794ETT+TG40 price and stock displayed on the platform accurate?
The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MAX4794ETT+TG40, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of MAX4794ETT+TG40?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX4794ETT+TG40 we delivered, we will accept the replacement or return of the MAX4794ETT+TG40 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of MAX4794ETT+TG40.
(3)The MAX4794ETT+TG40 is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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Maxim Integrated

Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal, high-frequency, and digital circuits that enable all four of these key interactions....
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