AMS AS3636 User guide

Brand: AMS

Model: AS3636

Type: User guide

austriamicrosystems AG

is now

ams AG

The technical content of this austriamicrosystems application note is still valid.

Contact information:

Headquarters:

ams AG

Tobelbaderstrasse 30

8141 Unterpremstaetten, Austria

Tel: +43 (0) 3136 500 0

e-Mail: ams_sales@ams.com

Please visit our website at www.ams.com

www.austriamicrosystems.com

Rev 1.0 / 2011-03-07 (mmt)

1 - 13

1 General Description

The AS3636 is a highly integratet photoflash charger

including IGBT driver, inductive DCDC boost autofocus/

video LED driver, an inductor LED driver and it includes

system level ESD protection and a breakable fuse.

The AS3636 includes flash timeout, over- and

undervoltage, overtemperatur and LED short circuit

protection functions. To reduce production test time a

broken coil test is implemented.

The AS3636 is controlled by an I2C interface with a

dedicated STROBE input. Additionally the TORCH

input controls the torch function. An interrupt output is

available to signal an error condition to the controller.

The device includes 11 Bytes EEPROM, and an

automatic life time counter to count the number of

flashes performed.

The AS3636 is available in a space-saving WL-CSP

package and operates over the -30ºC to +85ºC

temperature range.

Warning: Lethal voltages are present on applications

using AS3636! Do not operate without

training to handle high voltages.

2 Key Features

 Xenon driver

− Adjustable recharge timings

− Adjustable current limits

− In-production trimmable end of charge voltage

 IGBT Driver

− Trimmable IGBT voltages

− Trimmable IGBT driving waveform

− Internal flash duration timer

− External STROBE input

 DCDC Boost Converter

− Autofocus/video LED current source

− Voltage supply for IGBT

 Integrated one time breakable fuse in supply path

 Integrated system level ESD protection according to

IEC-61000-4-2 Level 4 (8kV contact, 15kV air

discharge)

 Available in tiny WL-CSP Packages

4x4 balls 0.5mm pitch,

2.0 x 2.15 x 0.6 mm

3 Applications

Xenon Flash with LED Torch for mobile phon

igure 1. AS3636 Typical Operating Circuit

Fig 1. AS3636 Typical Operating Circuit

AS3636

–

AN01

–

Demoboard

Xenon Driver IC LED Driver and Life Time Counter

Preliminary Application Note

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

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evision 1.0 / 2011/03/10 2 - 13

able of Contents

1 GENERAL DESCRIPTION ...................................................................................................................... 1

2 KEY FEATURES .................................................................................................................................... 1

3 APPLICATIONS..................................................................................................................................... 1

4 FURTHER APPLICATIONS .................................................................................................................... 3

5 REVISION STATUS ............................................................................................................................... 3

6 GENERAL DESCRIPTION ...................................................................................................................... 3

7 GETTING STARTED .............................................................................................................................. 3

8 GUI – SW: FIRST STEPS ....................................................................................................................... 4

8.1 GUI – SW: Overview .................................................................................................................................... 4

8.2 SW vs. PCB: Get the board functional ......................................................................................................... 6

9 AS3636 DEMOBOARD V1.1 JUMPER AND DEVICE LOCATIONS ........................................................... 9

10 AS3636 DEMOBOARD 1.1: APPLICATION SCHEMATIC ................................................................ 10

11 AS3636 DEMOBOARD V1.1: LAYOUT (TOP VIEW) ....................................................................... 12

12 AS3636 DEMOBOARD V1.1: LAYOUT (BOTTOM VIEW) ................................................................ 12

COPYRIGHT .............................................................................................................................................. 13

AS3610

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

evision 1.0 / 2011/03/10 3 - 13

4 Further Applications

Visit our home-page: h

ttp: //www.austriamicrosystems.com

5 Revision status

AS3636 - AN01 - Demoboard Rev.: 1.1

AS3636 Demoboard – Layout Rev.: 1.1

AS3636 Demoboard – Schematic Rev.: 1.1

6 General description

Remark: all subsequent component numbering refers to the application schematics, shown in par”Application

hematic”.

7 Getting Started

Install the GUI SW which can be found on the USB-stick, which is included.

Follow the sequence to connect the AS3636 Board (as shown in the picture below):

1. Connect the austriamicrosystems AG USB-BOX

2. connect the battery to VBAT and GND

Fig2. Shows AS3636DB, USB-BOX & Lion Battery

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

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8 GUI – SW: First steps

irst of all press the “Readout all registers”-button: If the AS3636 is supplied and connected correctly to the

USB-Box, the green line on the bottom left of the demo software will show the words “USBBox connected,

CHIP OK!”

8.1 GUI – SW: Overview

Legend: Definition of the cases described per colour

rite:

Read:

Info:

Xenon control:

- For charging of the main

capacitor, activate the

“Charge”-checkbox

- For automatic recharging,

activate the “Automatic

recharge enable”-checkbox

Autofocus & I

ndicator:

- It is possible to change currents for the AF-LED and

the Indicator-LED by using the pull down- menu

- By selecting the checkboxes, the LEDs will turn on.

Module selftest:

- the actual interrupt status is shown,

when the “Read Interrupts”-button is

pressed

Identification:

− Information of the Device

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

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E²Prom Registers:

- Actual readout of the E²Prom

E²Prom Settings:

- Xenon Life Counter:

Every 2nd flash saved in the E²Prom

- Charge Voltage Selection:

Define EOC Voltage (End of Charge)

- Switch Current Selection:

Define Switch (T1) current

- SST Pulse Length:

Set the length of the Flash

- Strobe Pulse Extension:

Identification:

- Information for manufacturer

IGBT:

- IGBT_rise_and_fall_speed control the edge

from VOUTBOOST to VOUTBOOST/2

Identification:

- DCDC Coil Peak Current:

Set coil current

- Max. AF LED Current:

Set maximum AF-LED current

- Indicator output:

Select the output of the Indicator LED @ which LED

(IND or AF-LED)

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

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8.2 SW vs. PCB: Get the board functional



Check battery first if it is loaded!!

 Connect Battery (~3.7V Lithium Ion) to Vbat

 Press the button “Readout all Registers”

 Switch on the Indicator LED on

o Choose the current of the tab and set the checkbox  LED D3 is turning on

− Deselect the checkbox

o Do the same with the AF- Mode  LED D3 is turning on

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

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evision 1.0 / 2011/03/10 7 - 13

 Change to the E²Prom tab:

o Values can be written to the E²Prom by using the pull down-menus

o select the Switch- Current:

o Charge Voltage Selection:

− Per default the Charge Voltage Selection is set to 28.5V, this results that the output

voltage on the main capacitor is charged to ~260V. In order to guarantee flashing the

Charge Voltage selection needs to be set to 33V, which gives an output voltage of

320V.

Note:

In order not to damage the main capacitor due to high voltage (>330V) the Charge Voltage should be

checked with a voltmeter whenever changing the Charge Voltage Selection to high voltages.

 For charging of the main capacitor, activate the “Charge”-checkbox , for automatic recharging, activate the

“Automatic recharge enable”-checkbox

Warning: L

ethal voltages are present on applications using AS3636! Do not

operate without training to handle high voltages.

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

evision 1.0 / 2011/03/10 8 - 13

 “Read interrupts”, if the charger is ready for use

 Activate the Xenon – flash:

 Xenon will flash

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

evision 1.0 / 2011/03/10 9 - 13

9 AS3636 Demoboard V1.1 jumper and device locations

Listed below are the various connectors and jumpers.

Jumper

Function

Jumper

setting

comment

J1 USB Box Interface Connector Y

J2 Connector – AF- LED Y ILED - Can be used for current measurements of the AF- LED

J3 Connector – indicator LED Y IIND - Can be used for current measurements of the indicator LED

J4 Connector – indicator LED optional

J5 GND Y Measurement pins only

J7 Interface pins Measurement pins only

J9 DF23C-10DS-0.5V Optional  connector for mobile phones

J10 VBAT

BU1 VBAT Main battery supply

BU2 GND Main battery GND

TP1 Test point Vflash

TP2 Test point Vtrig

TP3 Test point SW_F

TP4 Testpoint SW_B

TP5 Test point IGBT_GATE

TP6 Testpoint Outpost

TP7 Testpoint Vbatint

Device Value

AS3636

Xenon Driver IC LED Driver and Life Time Counter

U2 Light Sensor BH1620FVC

Fig3. Connector and Jumper locations of AS3636 Demoboard V1.1

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) Revision 1.0 / 2011

/03/10 10 - 13

10 AS3636 Demoboard 1.1: Application Schematic

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) Revision 1.0 / 2011

/03/10 11 - 13

ams AG

Technical content still valid

AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

evision 1.0 / 2011/03/10 12 - 13

11 AS3636 Demoboard V1.1: Layout (top view)

Layout (top view)

12 AS3636 Demoboard V1.1: Layout (bottom view)

Layout (bottom view)

ams AG

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AS3636 – AN01 - Demoboard

Preliminary Application Note – Xenon Driver IC LED Driver and Life Time Counter

www.austriamicrosystems.com (mmt) R

evision 1.0 / 2011/03/10 13 - 13

merged, translated, stored, or used without the prior written consent of the copyright owner.

All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions

appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by

description regarding the information set forth herein or regarding the freedom of the described devices from

patent infringement. Austriamicrosystems AG reserves the right to change specifications and prices at any time

and without notice. Therefore, prior to designing this product into a system, it is necessary to check with

austriamicrosystems AG for current information.

This product is intended for use in normal commercial applications. Applications requiring extended temperature

range, unusual environmental requirements, or high reliability applications, such as military, medical life-support

or lifesustaining equipment are specifically not recommended without additional processing by

austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might

show deviations from the standard production flow, such as test flow or test location.

The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However,

austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not

limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect,

special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing,

performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise

or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters

austriamicrosystems AG

A-8141 Schloss Premstätten, Austria

T. +43 (0) 3136 500 0

F. +43 (0) 3136 5692

For Sales Offices, Distributors and Representatives, please visit:

http://www.austriamicrosystems.com/contact

ams AG

Technical content still valid

AMS AS3636 User guide

AMS AS3636 User guide

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