MAX1940EEE+ by Analog Devices

Triple USB Switch with Autoreset and Fault Blanking


The MAX1940 triple current-limited switch with auto-reset supplies a guaranteed 500mA load per channel in accordance with USB specifications. The MAX1940 operates from a 4V to 5.5V input supply and consumes only 60µA of quiescent current when operating and only 3µA in standby. Selectable active-high/active-low control logic and independent shutdown controls for each channel provide additional flexibility. An autoreset feature latches the switch off in the event of a short circuit, saving system power. The switch reactivates upon removal of the shorted condition. The MAX1940 provides several safety features to protect the USB port. Built-in thermal-overload protection turns off the switch when the die temperature exceeds +160°C. Accurate internal current-limiting circuitry protects the input supply against both overload and short-circuit conditions. Independent open-drain fault signals (active-low FAULTA, active-low FAULTB, and active-low FAULTC) notify the microprocessor when a thermal-overload, current-limit, undervoltage lockout (UVLO), or short-circuit fault occurs. A 20ms fault-blanking feature enables the circuit to ignore momentary faults, such as those caused when hot-swapping a capacitive load, preventing false alarms to the host system. The fault-blanking feature also prevents fault signals from being issued when the device powers up the load. The MAX1940 is available in a space-saving 16-pin QSOP package and operates over the extended (-40°C to +85°C) temperature range.

Where to Buy

Prices starting from US$1.35

Distributor Stock
Logo for Rochester Electronics
Rochester Electronics
from US$1.35
1,064
in stock
Buy Now
Logo for Farnell UK
Farnell
from US$2.51
0
in stock
Buy Now
Buy Now

Features

Triple USB Switch in Tiny 16-Pin QSOP Package
Autoreset Feature Saves System Power
Guaranteed 500mA Load Current per Channel
Built-In 20ms Fault-Blanking Circuitry
Active-High/Active-Low Control Logic
Fully Compliant to USB Specifications
4V to 5.5V Input Voltage Range
Independent Shutdown Control
Independent Fault Indicator Outputs
Thermal-Overload Protection
3µA Standby Current

Specifications

Current Limit (mA) (min) 700
Current Limit (mA) (max) 700
# Power Switches 3
USB Yes
Fault Indicator Yes
Current Limit Accuracy (%) 26
Current Limit Set By Preset
RON (Ω) (typ) 0.085
VSUPPLY (V) (min) 4
VSUPPLY (V) (max) 5.5
Oper. Temp. (°C) -40 to +85
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 1.39

Last 6 months Inventory & Pricing History



MAX1940EEE+ - Integrated Circuits by Analog Devices

USB CURRENT-LIMITED SWITCH QSOP-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function USB Current Limited Switch
Supply Voltage Min 4V
Supply Voltage Max 5.5V
IC Package Type QSOP
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History


Alternative Descriptions

USB CURRENT-LIMITED SWITCH, QSOP-16 | Farnell

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1940EEE+ ?

Additional datasheets, footprints and schematics for MAX1940EEE+ are listed on our Part Details page. You can also find images and similar parts to MAX1940EEE+ on this page.

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Is the MAX1940EEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1940EEE+ have stock available?

Authorised distributors including Rochester Electronics and Farnell have stock available or on a lead time for MAX1940EEE+ .

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