AS3693B-ZQFT

AS3693B-ZQFT Datasheet

AS3693B

Part	Datasheet
AS3693B-ZQFT	AS3693B-ZQFT (pdf)

Related Parts	Information
AS3693B-ZTQT	AS3693B-ZTQT

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austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information Headquarters ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 e-Mail: Please visit our website at AS3693B austriamicrosystems Product Specification, Confidential Channel high precision LED driver for LCD Backlight lid 1 General Description a The AS3693B is a 16 channels high precision LED v controller with build in PWM generators for driving external FETs in LCD-backlight panels. ill External clock and synchronizing inputs allow the synchronization of the LCD backlight with the TV picture. Local dimming and scan dimming is t supported by 16 independent PWM generators with programmable delay, period and duty cycle. Three G s free configurable dynamic power feedback circuits make the device usable for white LED as well as A t RGB backlights. Build in safety features include thermal shutdown as well as open and short LED detection. All circuit parameters are programmable s n via I2C or SPI interface. m te 2 Key Features a n 16 Channel LED driver o Output current only limited by external transistor c Output voltage 0.4V to 50V Absolute current accuracy +/- l Output slew rate programmable Current programmable with external resistor a Linear current control with 8 - bit DAC Linear current control with external analog ic voltage Digital current control with 16 independent Techn PWM generators Free programmable 12 bit resolution period, high time and delay Overvoltage detection short LED Undervoltage detection open LED Temperature shutdown Fault interrupt output H-Sync, V-Sync inputs to synchronize with TVset Internal or external PWM clock I2C interface SPI interface 5 bit device - address sets device address and interface mode Automatic supply regulation feedback Each output can be assigned to red, green or blue feedback. Package epTQFP64 and QFN64 3 Applications • LED backlighting for LCD TV sets and monitors 1 - 32 AS3693B 4 Block Diagram Vsupply austriamicrosystems Vreg FBB FBG FBR REF V2_5 Reference, DAC Fault detectors 10 Ordering Information 31 32 o Disclaimer 32 Technical c Contact 32 3 - 32 AS3693B austriamicrosystems 5 Characteristics Absolute Maximum Ratings Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 1 Absolute Maximum Ratings Parameter lid VDDMAX Supply for LED’s VINVREG VREG supply voltage a IINVREG Maximum Vreg current v VIN2.5V V Pins ill VIN5V 5V Pins VIN50V 50V Pins t IIN Input Pin Current G s TSTRG Storage Temperature Range A t Humidity s n VESD Electrostatic Discharge on Pins Curr1 Curr16 e VESD Electrostatic Discharge on all Pins m t PT Total Power Dissipation a n PDERATE co TBODY PT Derating Factor Body Temperature during Soldering -25 -55 5 -4000 -2000 Max Unit Note V See notes1 V Applicable for pin VREG 10 Ordering Information Table 6 Ordering Information Part Number Marking Package Type Delivery Form AS3693B-ZTQT AS3693B epTQFP64 Tape and Reel Package size = 10x10mm, Exposed pad in Dry Pack size = 4.5x4.5mm, Pitch = 0.5mm, Pb-free; AS3693B-ZQFT AS3693B Technicaaml scoAnGtent still valid AS3693B-ZMFT AS3693B QFN64 MLF64 Tape and Reel in Dry Pack Tape and Reel in Dry Pack Package size = 9x9mm, Pitch = 0.5mm, Pb-free; Package size = 9x9mm, Pitch = 0.5mm, Pb-free; 31 - 32 AS3693B austriamicrosystems Copyright Copyright 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, AustriaEurope. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks of their respective companies. Disclaimer lid Devices sold by austriamicrosystems AG are covered by the warranty and patent identification 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 a 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 v 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 ill reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. t 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 G s 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, A t 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. ms ten Contact Information a n Headquarters o austriamicrosystems AG Business Unit Communications c A 8141 Schloss Premstätten, Austria T. +43 0 3136 500 0 l F. +43 0 3136 5692 ica For Sales Offices, Distributors and Representatives, please visit Techn a u s t r i a m i c r o s y s t e m s a leap ahead 32 - 32

PDF Datasheet Preview

austriamicrosystems AG is now
ams AG

The technical content of this austriamicrosystems datasheet is still valid.

Contact information Headquarters ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 e-Mail:

Please visit our website at

AS3693B
austriamicrosystems

Product Specification, Confidential

Channel high precision LED driver for

LCD Backlight lid 1 General Description a The AS3693B is a 16 channels high precision LED v controller with build in PWM generators for driving
external FETs in LCD-backlight panels.
ill External clock and synchronizing inputs allow the
synchronization of the LCD backlight with the TV picture. Local dimming and scan dimming is
t supported by 16 independent PWM generators with
programmable delay, period and duty cycle. Three

G s free configurable dynamic power feedback circuits
make the device usable for white LED as well as

A t RGB backlights. Build in safety features include
thermal shutdown as well as open and short LED detection. All circuit parameters are programmable
s n via I2C or SPI interface. m te 2 Key Features a n 16 Channel LED driver o Output current only limited by external
transistor
c Output voltage 0.4V to 50V

Absolute current accuracy +/-
l Output slew rate programmable

Current programmable with external resistor
a Linear current control with 8 - bit DAC

Linear current control with external analog
ic voltage

Digital current control with 16 independent

Techn PWM generators

Free programmable 12 bit resolution period, high time and delay Overvoltage detection short LED Undervoltage detection open LED Temperature shutdown Fault interrupt output H-Sync, V-Sync inputs to synchronize with TVset Internal or external PWM clock I2C interface SPI interface 5 bit device - address sets device address and interface mode Automatic supply regulation feedback Each output can be assigned to red, green or blue feedback. Package epTQFP64 and QFN64
3 Applications
• LED backlighting for LCD TV sets and monitors
1 - 32

AS3693B
4 Block Diagram

Vsupply
austriamicrosystems

Vreg FBB FBG FBR REF V2_5

Reference, DAC

Fault detectors
10 Ordering Information 31 32
o Disclaimer 32 Technical c Contact 32
3 - 32

AS3693B
austriamicrosystems
5 Characteristics

Absolute Maximum Ratings

Stresses beyond those listed in Table 1 may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in Section 5 Electrical Characteristics is not implied.

Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Table 1 Absolute Maximum Ratings

Parameter
lid VDDMAX

Supply for LED’s

VINVREG

VREG supply voltage
a IINVREG

Maximum Vreg current
v VIN2.5V

V Pins
ill VIN5V
5V Pins

VIN50V
50V Pins
t IIN

Input Pin Current

G s TSTRG Storage Temperature Range

A t Humidity
s n VESD

Electrostatic Discharge on Pins Curr1 Curr16
e VESD Electrostatic Discharge on all Pins
m t PT

Total Power Dissipation
a n PDERATE co TBODY

PT Derating Factor

Body Temperature during Soldering
-25 -55
5 -4000 -2000

Max Unit

Note

V See notes1

V Applicable for pin VREG
10 Ordering Information
Table 6 Ordering Information

Part Number Marking Package Type Delivery Form

AS3693B-ZTQT AS3693B epTQFP64

Tape and Reel Package size = 10x10mm, Exposed pad in Dry Pack size = 4.5x4.5mm, Pitch = 0.5mm, Pb-free;

AS3693B-ZQFT AS3693B

Technicaaml scoAnGtent still valid AS3693B-ZMFT AS3693B

QFN64 MLF64

Tape and Reel in Dry Pack

Tape and Reel in Dry Pack

Package size = 9x9mm, Pitch = 0.5mm, Pb-free;

Package size = 9x9mm, Pitch = 0.5mm, Pb-free;
31 - 32

AS3693B
austriamicrosystems

Copyright

Copyright 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, AustriaEurope. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks of their respective companies.

Disclaimer
lid Devices sold by austriamicrosystems AG are covered by the warranty and patent identification 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
a 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
v 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
ill reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not
recommended without additional processing by austriamicrosystems AG for each application.
t 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

G s 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,

A t 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.
ms ten Contact Information a n Headquarters o austriamicrosystems AG

Business Unit Communications
c A 8141 Schloss Premstätten, Austria

T. +43 0 3136 500 0
l F. +43 0 3136 5692
ica For Sales Offices, Distributors and Representatives, please visit Techn
a u s t r i a m i c r o s y s t e m s a leap ahead
32 - 32

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AS3693B-ZQFT Datasheet file may be downloaded here without warranties.

Datasheet ID: AS3693B-ZQFT 519703