Maxim > Products > Analog Switches and Multiplexers > MAX4914B, MAX4915A, MAX4915B, ...
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MAX4914B, MAX4915A, MAX4915B, MAX4917A, MAX4917B

100mA/200mA/300mA Current-Limit Switches with Low Shutdown Reverse Current

Multiple Current-Limit Values (100mA/200mA/300mA) and Low Reverse Leakage Current in Shutdown Mode

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4914B/MAX4915A/B/MAX4917A/B 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 a 2.3V to 5.5V input voltage range. They are available with guaranteed 100mA, 200mA, 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 MAX4914B/MAX4915B/MAX4917B latchoff versions enter a latchoff 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 MAX4915A/MAX4917A 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 turns on and remains on after the overload condition disappears and active-low FLAG deasserts.

The MAX4914B is available in the tiny 6-pin µDFN (2mm x 2mm) package, while the MAX4915A/B and MAX4917A/B are available in both 6-pin µDFN (2mm x 2mm) and space-saving 5-pin SOT23 packages. These devices operate over the -40°C to +85°C extended temperature range.

Data Sheet

Download	Rev 2	(PDF, 188kB)
E-Mail

Key Features

Guaranteed Current Limit: 100mA, 200mA, 300mA
Thermal-Shutdown Protection
Reverse Current Protection
0.2Ω On-Resistance
14ms Guaranteed Blanking Time
Active-Low FLAG Function
80µA Supply Current
8µA Latchoff Current (MAX4914B/MAX4915B/MAX4917B)
Autoretry (MAX4915A/MAX4917A)
0.01µA Shutdown Current
2.3V to 5.5V Supply Range
Undervoltage Lockout
Fast Current-Limit Response Time (5µs)
Low (0.1µA typ) Reverse Shutdown Current
Tiny 6-Pin µDFN (2mm x 2mm) and 5-Pin SOT23 Packages

Applications/Uses

Cell Phones
GPS Systems
Handheld Devices
Notebook Computers
PDAs and Palmtop Devices
SDIO
USB Ports

Key Specifications:

Current Limit and USB Power Switches

Part Number

Power Switches

Current Limit
(mA)

Fault Indicator

Current Limit Accuracy
(%)

Current Limit Set By

R_ON
(Ω)

V_SUPPLY
(V)

Oper. Temp.
(°C)

Package/Pins

Budgetary Price

≥

≤

typ

min

max

See Notes

MAX4914B

100

Yes

Preset

0.2

2.3

5.5

-40 to +85

µDFN/6

$1.21 @1k

MAX4915A

200

µDFN/6

SOT/5

$0.90 @1k

MAX4915B

200

µDFN/6

SOT/5

$1.21 @1k

MAX4917A

300

µDFN/6

SOT/5

$1.21 @1k

MAX4917B

300

µDFN/6

SOT/5

$1.21 @1k

See All Current Limit and USB Power Switches (77)

Pricing 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.

Diagram

Typical Operating Circuit

Product Guides

Signal Routing & Protection (PDF)

Reliability Reports

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Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4914BELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4914BELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915AELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915AELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915AETT+T			Active	TDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4915AEUK+			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915AEUK+T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915BELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915BELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4915BEUK+T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4917AELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917AELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917AEUK+			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917AEUK+T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917BELT+			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917BELT+T			Active	µDFN;6 pin;4.2 mm² Outline Drawing:21-0164 (PDF) Land Pattern: 90-0004 (PDF) Use pkgcode/variation: L622+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4917BEUK+T			Active	SOT;5 pin;9 mm² Outline Drawing:21-0057 (PDF) Land Pattern: 90-0174 (PDF) Use pkgcode/variation: U5+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

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More Information

Topmark Coding	MAX4914B
Topmark Coding	MAX4915A
Topmark Coding	MAX4915B
Topmark Coding	MAX4917A
Topmark Coding	MAX4917B

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Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0544 Rev 2; 2008-10-02
This page last modified: 2011-02-16

100mA/200mA/300mA Current-Limit Switches with Low Shutdown Reverse Current

Status

Description

Data Sheet

Key Features

Applications/Uses

Key Specifications:

Diagram

Product Guides

Reliability Reports

Software/Models

Ordering Information

Similar Products by Function

Similar Products by Application

More Information

Didn't Find What You Need?

Information Index

Overview

Technical Documents

Ordering Info

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