MAX16915AUB/V+ Maxim Integrated Products, MAX16915AUB/V+ Datasheet

MAX16915AUB/V+

Manufacturer Part Number

MAX16915AUB/V+

Description

IC CTRLR IDEAL DIODE 10UMAX

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX16914AUBV.pdf (9 pages)

Specifications of MAX16915AUB/V+

Applications

Battery Backup, Industrial/Automotive, High Current Switch

Fet Type

P-Channel

Number Of Outputs

Internal Switch(s)

Voltage - Supply

4.5 V ~ 19 V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

10-MSOP, Micro10™, 10-uMAX, 10-uSOP

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Supply

Delay Time - On

Delay Time - Off

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µMAX is a registered trademark of Maxim Integrated Products, Inc.

The MAX16914/MAX16915 low-quiescent-current over-

voltage and reverse-battery protection controllers are

designed for automotive and industrial systems that

must tolerate high-voltage transient and fault conditions.

These conditions include load dumps, voltage dips, and

reversed input voltages. The controllers monitor the input

voltage on the supply line and control two external pFETs

to isolate the load from the fault condition. The external

pFETs are turned on when the input supply exceeds

4.5V and stay on up to the programmed overvoltage

threshold. During high-voltage fault conditions, the con-

trollers regulate the output voltage to the set upper

threshold voltage (MAX16915), or switch to high resis-

tance (MAX16914) for the duration of the overvoltage

transient to prevent damage to the downstream circuitry.

The overvoltage event is indicated through an active-low,

open-drain output, OV.

The reverse-battery pFET behaves as an ideal diode,

minimizing the voltage drop when forward biased. Under

reverse bias conditions, the pFET is turned off, prevent-

ing a downstream tank capacitor from being discharged

into the source.

Shutdown control turns off the IC completely, discon-

necting the input from the output and disconnecting

TERM from its external resistor-divider to reduce the

quiescent current to a minimum.

Both devices are available in a 10-pin FMAX

and operate over the automotive -40NC to +125NC tem-

perature range.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

19-4964; Rev 0; 9/09

Ideal Diode, Reverse-Battery, and Overvoltage Protection

Automotive

Industrial

TOP VIEW

Switch/Limiter Controllers with External MOSFETs

SENSE IN

GATE1

SHDN

_______________________________________________________________ Maxim Integrated Products 1

General Description

MAX16914

MAX16915

Pin Configuration

Applications

GATE2

SENSE OUT

TERM

SET

GND

package

S 4.5V to 19V Input Voltage Operation

S Transient Voltage Protection Up to +44V and -75V

S Adjustable Overvoltage Limit with Resistor-

S Ideal Diode Reverse-Battery Protection

S Low Voltage Drop When Used with Properly Sized

S Back-Charge Prevention

S Overvoltage Indicator

S Shutdown Input

S 29µA Low Operating Current

S 6µA Low Shutdown Current

S Thermal-Overload Protection

S -40NC to +125NC Operating Temperature Range

S Small 10-Pin µMAX Package

S AEC-Q100 Qualified

+Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified device.

MAX16914AUB/V+

MAX16915AUB/V+

BATT

Divider Shut Off in Shutdown

External pFETs

OFF

PART

Typical Operating Circuit

GATE1

SENSE IN

SHDN

-40NC to +125NC

Ordering Information

TEMP RANGE

MAX16914

MAX16915

GND

SENSE OUT

GATE2

TERM

SET

PIN-PACKAGE

Features

10 FMAX

OUT

Related parts for MAX16915AUB/V+

MAX16915AUB/V+ Summary of contents

Page 1

... S Overvoltage Indicator S Shutdown Input S 29µA Low Operating Current S 6µA Low Shutdown Current S Thermal-Overload Protection S -40NC to +125NC Operating Temperature Range S Small 10-Pin µMAX Package S AEC-Q100 Qualified PART MAX16914AUB/V+ MAX16915AUB/V+ +Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified device. package M V BATT 10 GATE2 9 ...

Page 2

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs ABSOLUTE MAXIMUM RATINGS V , SENSE OUT, TERM, SHDN GND for CC P 400ms .............................................................-0.3V to +44V V , SENSE OUT, TERM, SHDN GND CC ...

Page 3

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs ELECTRICAL CHARACTERISTICS (continued 14V 32nF GATE1 GATE2 values are +25NC.) (Note 2) A PARAMETER TERM On-Resistance TERM Output Current Back-Charge ...

Page 4

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs (V = 14V 14V, MAX16914/MAX16915 Evaluation Kit SHDN SUPPLY CURRENT vs. SUPPLY VOLTAGE 30 MAX16914 25 MAX16915 20 TERM = OPEN 15 SHDN = HIGH ...

Page 5

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs (V = 14V 14V, MAX16914/MAX16915 Evaluation Kit SHDN BACK-CHARGE RESPONSE MAX16914 toc10 V 5V/div 5V V 5V/div 5V V 5V/div 0V 1.0µs/div 2.2µF INPUT CAPACITOR, ...

Page 6

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs V CC GATE1 SENSE IN SHDN OV OV1 Detailed Description The MAX16914/MAX16915 are ultra-small, low-quies- cent, high load-current, overvoltage-protection circuits for automotive or industrial applications. These devices monitor the ...

Page 7

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs Overvoltage Limiter Controller (MAX16915) In the MAX16915, TERM is internally connected to SENSE OUT (see the Functional Diagram) allowing the IC to operate in voltage-limiter mode. During normal operation, ...

Page 8

Ideal Diode, Reverse-Battery, and Overvoltage Protection Switch/Limiter Controllers with External MOSFETs Overvoltage Indicator Output (OV) The MAX16914/MAX16915 include an active-low, open-drain overvoltage-indicator output (OV). For the MAX16914, OV asserts low when V grammed overvoltage threshold. OV deasserts when the overvoltage ...

Page 9

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2009 Maxim Integrated Products © ...

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