To learn more about ON Semiconductor, please visit our website at www.onsemi.comIs Now Part of

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Is Now Part of

ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

AN-7008

FPF200X Evaluation Module

www.fairchildsemi.com

© 2004 Fairchild Semiconductor REV. A 12/21/04

Introduction

The FPF200X EVM is an Evaluation Module for Fairchild Semiconductor FPF2000 smart load switches family. The FPF200X family is a 0.7 Ω PMOS load switches with controlled turn-on, fast turn-off, and current limit. The current Limit is guaranteed for 50mA and 100mA with 1.8V to 5.5V range of input voltage.

The Evaluation Module has test points for convenient access to the all pins and jumpers for setting the various load conditions along with switches for toggling the ON/OFF and configuring the ON pin polarity. The Board can be presented as a stand alone unit with a 1.8-5.5V battery for testing the basic functions.

Current-Limit Condition

The Output current can be sensed by removing R3 = 0 Ω and soldering a loop across it.

The FPF200X EVM can demonstrate the current condition stand alone (Nominal, Hard- short and Moderate over- current) through SW1 or by using an external pulse generator through the EXT. over-current terminal. The three load conditions are as follows:

• Nominal load: for normal operation with R

= 500 Ω and C

= 0.1 µ F.

• Moderate over-current: where the output is pulled down by a 10 Ω resistor to ground (set J1 as shown in Figure 1)

• Hard short: where the output is pulled down directly to ground (set J1 as shown in Figure 1)

Extra space has been left on the board beside R

and C

if user should want to mount and experiment with a special load (for example an inductive load).

Monitoring the FLAGB (TP1)

The status of the FLAGB pin can be monitored through TP1 either by probing it or by lighting a small LED in current limit events. (J2 needs to be set as shown in figure1)

For non-Auto-Restart parts the LED stays lit in current limit conditions until the SW2 switch is toggled. For Auto-Restart parts, the LED will light as long as the pushbottom switch (SW1) is being held down.

ON Pin

TP2 for monitoring the status of the ON pin SW2 for manual ON/OFF switching

Ext. ON for activating the ON pin by external pulse generator This may be useful for testing the switching characteristics of the switch.

SW3 for setting the ON pin polarity

• LO for FPF2001 and FPF2005

• HI for FPF2000,2002,2003,2004,2006,2007

Figure 1. FPF200X Evaluation Module Board

t Condition n e r r u C r e v O l a n r e t n I : 1 W S

n set by J1 o i t i d n o c t n e r r u c - r e v o s e s u a C

t n e r r u C r e v O l a n r e t x E : 3 P T

l o r t n o c l a n r e t x e n a g n i g n a h c y B

3 P T h g u o r h t h t d i w e s l u p l a n g i s

r o t a r e n e G n o i t c n u F a g n i s u

r o f h t d i w e s l u p e h t y r a v d n a

k n a l b T e h T g n i t s e

t andTrestart

h c t i w S F F O / N O : 2 W S

e h t s e s a e l e r ll i w 2 W S g n il g g o T

e d o m f f o - h c t a l m o r f h c t i w s d a o L

n i p N O e h t s e r u g i f n o C : 3 W S

) o L r o I H e v i t c A ( y t i r a l o P

t n e r r u C t u p t u O g n i s n e S

R3 = 0Ω and e h t e v o m e R

y b t n e r r u c t u p t u o e h t e s n e s

t i s s o r c p o o l a g n i r e d l o s

n i p N O : 2 P T s

n o i t i d n o C t i m i L t n e r r u C : 1 J

t = Vout/10 u o I t n e r r u c r e v o e t a r e d o M . 1

out = 0V) V ( t r o h s d r a H . 2

n o i t i s o P B G A L F : 2 J

D E L g n i s u : A

1 P T e v i t c a : B N

O l a n r e t x E : 4 P T

F F O / N O e h t l o r t n o C

y b h c t i w s f o e t a t

s using

n o i t c n u F

a Generator

: 1 P T FLAGBpin

) B n o i t i s o p n i 2 J t u p t s r i F (

A B

2 J

AN-7008 APPLICATION NOTE

2 REV. A 12/21/04

Evaluation Module Setup

The following equipment is recommended for testing:

• A four-channel Oscilloscope

• Current Probe

• One Adjustable power supply 0V-6V@2A

• Volt-meter

• Function Generator with Burst function single pulse

Figure 2. FPF200X Evaluation Module Schematic

Table 1. Bill of Materials

Reference Part Reference Part

C1, C2, C3, C4 0.1 µ F R8 50 Ω

CIN 10 µ F R9 10K Ω

D1 BZX84C10/SOT R9, R10 10K Ω

D2 QLTP600CR R11 10K Ω

Q1, Q2 FDN339AN SW1 SW Pushbutton-SPST

R1 500 Ω SW2, SW3 SW SPDT

R2, R6 100K SW4 Jumper_2mm

R3 0 Ω J1 Dual Jumper_2mm

R4 150 Ω TP1, TP2, TP3, TP4 Test Point

R5 10 Ω U1 FPF200X

R7, R8 50 Ω U2 NC7WZ32K8

R7 50 Ω U3 NC7WZ86

R6

100K C2 0.1UF

R7 50 Ext. OverCurrent

VCC

1 2

U2A

NC7WZ32K8

1 4

2 3

SW1 Condition Over-Current

C1 0.1UF J1

R9 10K R5 10

T P 1

1 T P 4 SW2

C3 0.1UF R1 500

R3 0

R8 50 Ext. ON

VCC 7

Q1 FDN339AN Q2

FDN339AN

ON/OFF Switch

D2 QTLP600CR

R10 SW3 10K R4

150

1 2

7 U3A

NC7WZ86 C40.1UF R2

100K

VCC 5

6

3 U2B

NC7WZ32K8

ON Pin Polarity SW4

OUT IN 5

ON 4 FLAGB GND

FPF200X

D1 BZX84C10/SOT CIN1

10UF VCC

1 TP2

1 1

3 2

U1

1 TP3

APPLICATION NOTE AN-7008

REV. A 12/21/04 3

Figure 3. Test Setup for T

and T

Current Limit 80mA

FPF2000

T

Blank

TRESTART

Ch1 = OverCurrent condition Ch2 = FLAGB

Ch3 = I

(100mA/div) Ch4 = V

Restart Time Blanking Time

Figure 4. Scope Result

CH1 CH2 CH3 CH4

AN-7008 APPLICATION NOTE

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.

As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

PRODUCT STATUS DEFINITIONS Definition of Terms

Datasheet Identification Product Status Definition

Advance Information

Preliminary

No Identification Needed

Obsolete

This datasheet contains the design specifications for product development. Specifications may change in any manner without notice.

This datasheet contains preliminary data, and supplementary data will be published at a later date.

Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.

This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.

This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor.

The datasheet is printed for reference information only.

Formative or In Design

First Production

Full Production

Not In Production

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Across the board. Around the world.™

The Power Franchise

Programmable Active Droop™

REV. A 12/21/04 © 2004 Fairchild Semiconductor

www.onsemi.com 1

ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

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