MAX1693, MAX1693H, MAX1694 USB Current-Limited Switches with Fault Blanking

Description

The MAX1693/(MAX1693H)/MAX1694 are current-limited, 60mΩ switches with built-in fault blanking. Their accurate preset current limit of 0.7A to 1.0A makes them ideally suited for USB applications. Their low quiescent supply current (14µA) and shutdown current (1µA) conserve battery power in portable applications. The MAX1693/(MAX1693H)/MAX1694 operate with inputs from +2.7V to +5.5V, making them ideal for both +3V and +5V systems.

A fault signal notifies the microprocessor that the internal current limit has been reached. A 10ms fault-blanking feature allows momentary faults (such as those caused when hot-swapping into a capacitive load) to be ignored, thus preventing false alarms to the host system. This fault blanking also prevents a fault signal from being issued when the device is powering up.

In the MAX1693/(MAX1693H), an output overcurrent condition causes the switch to current limit at 0.7A to 1.0A and active-low FAULT to go low after the 10ms blanking period. When the overcurrent condition is removed, active-low FAULT returns to its high-impedance state. In the MAX1694, any overcurrent longer than 10ms will latch the switch open and set active-low FAULT low. The latch is cleared by cycling the active-low ON input or by powering up the device again. This feature saves power by preventing the device from thermally cycling on and off in case of a persistent short-circuit condition.

The MAX1693/(MAX1693H)/MAX1694 have several safety features to ensure that the USB port is protected. Built-in thermal-overload protection limits power dissipation and junction temperatures. Both devices have accurate internal current-limiting circuitry to protect the input supply against overload. They are available in space-saving 10-pin µMAX® packages.

Key Features

Applications/Uses

Accurate Current Limit (0.7A min, 1.0A max)
Guaranteed 0.75A Short-Circuit Protection
10ms Internal Fault-Blanking Timeout
No Fault Signal During Power-Up
Latched active-low FAULT Output Turns Off Power Switch (MAX1694)
Thermal Shutdown Protection
+2.7V to +5.5V Supply Range
14µA Supply Current
Small 10-Pin µMAX Package
UL Approved - #E197531

	Battery Chargers
	Docking Stations
	Hot Plug-In Power Supplies
	Notebook Computers
	Portable Equipment
	USB Ports and Hubs

Key Specifications: USB Power Switches

Part Number

Functions

Number of Switches

Max. Load Current (A)

R_ON (typ) (Ω)

Fault Indicator

Fault Blanking Timeout (ms)

Switch Op. Voltage Range (V)

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX1693

•	Fault Blanking

0.85

0.06

Yes

2.7 to 5.5

Yes

uMAX/10

-40 to +85

$0.80 @ 1k

MAX1694

$0.80 @ 1k

See All USB Power Switches (28)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Reliability Reports


		Show FIT data for:

		Reliability Report: MAX1693EUB.pdf

		Request Reliability Report for:

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-12 of 12

MAX1693

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1693EUB

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1693EUB+T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1693EUB+

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1693EUB-T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1693H

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1693HEUB

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1693HEUB-T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1693HEUB+

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1693HEUB+T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1694

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX1694EUB-T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1694EUB

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX1694EUB+

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX1694EUB+T

uMAX;10 pin;15 mm²
Dwg: 21-0061J (PDF)
Use pkgcode/variation: U10+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

Notes and Comments

Accurate current limit, 10ms fault blanking, 10uMAX package, latched output (MAX1694)

More Information

	Topmark Coding: MAX1694
	New Product Press Release 1999-08-18

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