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ZSPM4121KIT

Under-Voltage Load Switch for Smart Battery Management

厂商名称：ADI(亚德诺半导体)

厂商官网：https://www.analog.com

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Data Sheet

Rev. 1.00 / April 2012

ZSPM4121

Under-Voltage Load Switch for Smart Battery Management

ZSPM4121

Under-Voltage Load Switch for Smart Battery Management

Brief Description

The ZSPM4121 battery management load switch

can be used to protect a battery from excessive

discharge. It actively switches the battery power

source off if it drops to a set threshold (Off Mode).

When the input battery voltage is above the

threshold, the load switch is on (On Mode). The

ZSPM4121 threshold voltage (V

THRESH

) is pro-

grammed at manufacturing to a set point in the

range of 1.2V to 4.2V with 100mV steps between

options.

When the input battery voltage has been switched

off by the ZSPM4121, the quiescent current draw on

the battery is in the order of 100pA (typical). The

quiescent current in the on state is as low as 70nA.

The ZSPM4121 consists of an internally generated

threshold voltage, a comparator with hysteresis,

slew rate control for the load switch, a P-channel

load switch, and an open-drain indicator pin. The

500mV hysteresis between the Off Mode and the On

Mode

prevents intermittent operation.

The

ZSPM4121 also provides over-current protection.

Features

















Power source is actively switched off when

VCC drops below a set threshold (programmed

at manufacturing)

Wide input voltage range: 1.2V to 5.5V

Threshold voltage options of 1.2V to 4.2V in

100mV steps (factory programmed)

Supervisory over-current limit shutdown

Low drop out disconnect from VCC to loads

Controlled turn-on slew rate

500mV Off Mode to On Mode hysteresis

Over current shutdown (3A)

Related ZMDI Smart Power Products



ZSPM4141 Ultra-Low-Power Linear Regulator

Available Support





Evaluation Kit

Support Documentation

Benefits









Physical Characteristics



Best-in-class ultra-low quiescent current in

Off Mode: 100pA (typical)

Ultra-low quiescent current in On Mode: 70nA

(typical)

Accurate on/off voltage threshold

Low Rds(on): 175mΩ (typical) @ 5V

Package: 8-pin DFN (2mm x 2mm)

ZSPM4121 Block Diagram

ZSPM4121

VCC

VOUT

Regulated

V

THRESH

NPG

GND

Note: At manufacturing, V

THRESH

is programmed to a

customer-selected threshold voltage in the range of

1.2V to 4.2V with 100mV steps between options.

© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

The information furnished in this publication is subject to changes without notice.

ZSPM4121

Under-Voltage Load Switch for Smart Battery Management

Typical Application Circuits:

Charger

Typical Application Circuit for

Disconnecting the Battery

Load

ZSPM4121

VOUT

VCC

NPG

GND

Typical Applications











Portable Batteries

Industrial

Medical

Smart cards

RFID

Charger

Typical Application Circuit for

Disconnecting the Load

ZSPM4121

VOUT

VCC

NPG

GND

Load

Ordering Information

Ordering Code*

ZSPM4121AI1W17

ZSPM4121AI1W21

ZSPM4121AI1W23

ZSPM4121AI1W24

ZSPM4121AI1W25

ZSPM4121AI1W26

ZSPM4121AI1W28

ZSPM4121AI1W30

ZSPM4121KIT

Description

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 1.7V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.1V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.3V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.4V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.5V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.6V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 2.8V

ZSPM4121 Under-Voltage Load Switch—V

THRESH

factory set to 3.0V

ZSPM4121 Evaluation Kit

Package

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

8-pin DFN / 7” Reel (2500)

*

X

= W for 7” reel with 2500 parts or R for 13” reel with 3300. Custom V

THRESH

values are also available: 1.2V to 4.2V (typical) in 100mV increments.

Sales and Further Information

Zentrum Mikroelektronik

Dresden AG

Grenzstrasse 28

01109 Dresden

Germany

ZMD America, Inc.

1525 McCarthy Blvd., #212

Milpitas, CA 95035-7453

USA

www.zmdi.com

Zentrum Mikroelektronik

Dresden AG, Japan Office

2nd Floor, Shinbashi Tokyu Bldg.

4-21-3, Shinbashi, Minato-ku

Tokyo, 105-0004

Japan

ZMD FAR EAST, Ltd.

3F, No. 51, Sec. 2,

Keelung Road

11052 Taipei

Taiwan

analog@zmdi.com

Zentrum Mikroelektronik

Dresden AG, Korean Office

POSCO Centre Building

West Tower, 11th Floor

892 Daechi, 4-Dong,

Kangnam-Gu

Seoul, 135-777

Korea

Phone +82.2.559.0660

Fax

+82.2.559.0700

Phone +49 (0)351.8822

Fax

+49 (0)351.8822

Phone +855-ASK-ZMDI

(+855.275.9634)

Phone +81.3.6895.7410

Fax

+81.3.6895.7301

Phone +886.2.2377.8189

Fax

+886.2.2377.8199

DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG

(ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under

no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever

arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or

any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for any damages in connection with or arising out of the furnishing,

performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.

© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

ZSPM4121

Under-Voltage Load Switch for Smart Battery Management

Contents

ZSPM4121 Characteristics .................................................................................................................................. 6

1.1. Absolute Maximum Ratings .......................................................................................................................... 6

1.2. Thermal Characteristics ................................................................................................................................ 6

1.3. Recommended Operating Conditions .......................................................................................................... 6

1.4. Electrical Characteristics .............................................................................................................................. 7

2 Typical Performance Characteristics ................................................................................................................... 8

3 Description of Circuit ........................................................................................................................................... 9

4 Application Circuits ............................................................................................................................................ 10

4.1. Typical Application Circuits ......................................................................................................................... 10

5 Pin Configuration and Package ......................................................................................................................... 11

5.1. Package Dimensions and Marking Diagram .............................................................................................. 11

5.2. Pin Description for 8-Pin DFN (2x2 mm) .................................................................................................... 12

6 Layout and Soldering Requirements ................................................................................................................. 13

6.1. Recommended Landing Pattern for PCBs ................................................................................................. 13

6.2. Multi-Layer PCB Layout .............................................................................................................................. 14

6.3. Single-Layer PCB Layout ........................................................................................................................... 15

7 Ordering Information.......................................................................................................................................... 16

8 Related Documents ........................................................................................................................................... 16

9 Glossary ............................................................................................................................................................ 16

10 Document Revision History ............................................................................................................................... 17

1

List of Figures

Figure 2.1

Figure 2.2

Figure 2.3

Figure 2.4

Figure 2.5

Figure 2.6

Figure 3.1

Figure 4.1

Figure 4.2

Figure 5.1

Figure 5.2

Figure 6.1

Figure 6.2

Figure 6.3

Figure 6.4

Figure 6.5

On Mode / Off Mode Characteristics ..................................................................................................... 8

On Mode Switching Behavior ................................................................................................................ 8

On Mode / Off Mode Quiescent Current I

q

............................................................................................. 8

Off Mode V

THRESH

Temperature Performance ........................................................................................ 8

On Mode / Off Mode Transition Delay ................................................................................................... 9

Over-Current Retry Performance ........................................................................................................... 9

ZSPM4121 Block Diagram..................................................................................................................... 9

Application Circuit for Disconnecting the Battery ................................................................................. 10

Application Circuit for Disconnecting the Load .................................................................................... 10

ZSPM4121 Package Drawing .............................................................................................................. 11

ZSPM4121 Pin Assignments (top view) .............................................................................................. 12

Recommended Landing Pattern for 8-Pin DFN ................................................................................... 13

Package and PCB Land Configuration for Multi-Layer PCB .............................................................. 14

JEDEC Standard FR4 Multi-Layer Board – Cross-Sectional View ...................................................... 14

Conducting Heat Away from the Die using an Exposed Pad Package ............................................... 15

Application Using a Single-Layer PCB ................................................................................................ 15

Data Sheet

April 30, 2012

© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

4 of 17

ZSPM4121

Under-Voltage Load Switch for Smart Battery Management

List of Tables

Table 1.1

Absolute Maximum Ratings ................................................................................................................... 6

Table 1.2

Thermal Characteristics for 8-Pin DFN (2mm x 2mm) Package ........................................................... 6

Table 1.3

Recommended Operating Conditions .................................................................................................... 6

Table 1.4

Electrical Characteristics ........................................................................................................................ 7

Table 5.1: Pin Description, 8-Pin DFN (2x2) ............................................................................................................ 12

Data Sheet

April 30, 2012

© 2012 Zentrum Mikroelektronik Dresden AG — Rev. 1.00

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

5 of 17

参数对比

与ZSPM4121KIT相近的元器件有：ZSPM4121、ZSPM4121AI1W17、ZSPM4121AI1W21、ZSPM4121AI1W23、ZSPM4121AI1W24、ZSPM4121AI1W25、ZSPM4121AI1W26、ZSPM4121AI1W28、ZSPM4121AI1W30。描述及对比如下：

型号	ZSPM4121KIT	ZSPM4121	ZSPM4121AI1W17	ZSPM4121AI1W21	ZSPM4121AI1W23	ZSPM4121AI1W24	ZSPM4121AI1W25	ZSPM4121AI1W26	ZSPM4121AI1W28	ZSPM4121AI1W30
描述	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management	Under-Voltage Load Switch for Smart Battery Management

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