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LED controller. AS3696 Datasheet

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LED controller. AS3696 Datasheet






AS3696 controller. Datasheet pdf. Equivalent




AS3696 controller. Datasheet pdf. Equivalent





Part

AS3696

Description

4 channel white LED controller

Manufacture

austriamicrosystems

Datasheet
Download AS3696 Datasheet


austriamicrosystems AS3696

AS3696; AS3693B austriamicrosystems AS3696 4 c hannel white LED controller for general lighting applications Product specifi cation General Description The AS3696 is a 4 channels precision LED controlle r with PWM inputs or internal PWM gener ator for driving external FETs in preci se lighting applications. Build in safe ty features include thermal shutdown as well as open and .


austriamicrosystems AS3696

short LED detection.        2x2 Channel LED driver Outpu t current only limited by external FET Build in shunt regulator Absolute curre nt accuracy +/- 1% Channel to channel a ccuracy +/- 1% Normal Mode  Linear c urrent control with external voltage Digital PWM control with PWM input Build in PWM-generator with analog du ty cycle control Current Boost Mode  .


austriamicrosystems AS3696

Linear current control with external vol tage  Digital PWM control with 2 PWM inputs       Open LED detection and auto-turnoff Short LE D detection and auto-turnoff Temperatur e shutdown 2x automatic supply regulati on feedback Package QFN 32pin 5x5mm, 0. 5mm pitch Package TQFP 32pin 7x7mm, 0.8 mm pitch Applications Commercial, ind ustrial and retail lighting Str.



Part

AS3696

Description

4 channel white LED controller

Manufacture

austriamicrosystems

Datasheet
Download AS3696 Datasheet




 AS3696
AS3693B
austriamicrosystems
AS3696
4 channel white LED controller for general lighting
applications
General Description
The AS3696 is a 4 channels precision LED controller
with PWM inputs or internal PWM generator for driving
external FETs in precise lighting applications. Build in
safety features include thermal shutdown as well as
open and short LED detection.
2x2 Channel LED driver
Output current only limited by external FET
Build in shunt regulator
Absolute current accuracy +/- 1%
Channel to channel accuracy +/- 1%
Normal Mode
Linear current control with external voltage
Digital PWM control with PWM input
Build in PWM-generator with analog duty cycle
control
Current Boost Mode
Linear current control with external voltage
Digital PWM control with 2 PWM inputs
1 Block Diagram
Product specification
Open LED detection and auto-turnoff
Short LED detection and auto-turnoff
Temperature shutdown
2x automatic supply regulation feedback
Package QFN 32pin 5x5mm, 0.5mm pitch
Package TQFP 32pin 7x7mm, 0.8mm pitch
Applications
Commercial, industrial and retail lighting
Streetlights
Large panel LED backlighting
Vsupply
VDD
xFAULT FB12 FB34 V2_5
S1 G1 D1 S2 G2 D2 S3 G3 D3 S4 G4 D4
SMPS
feedback
Rosc
Cosc
Vduty
CB_PWM12
CB_PWM34
CB_MODE
xPD
PWM
SEL
Oscillator
PWM control
AS3696
Fault detectors
Reference
Vshort
Vfb
Vref
Vset2
Vset1
EPAD
VSS
Sel_PPTrim
www.austriamicrosystems.com
Rev 2.1 / 2012-11-29
1 - 14
Free Datasheet http://www.datasheet4u.com/





 AS3696
AS3696
2 Typical Application
austriamicrosystems
R2
Rfb R1
R2
SMPS1 Rfb R1
SMPS2
24V
Rvdd
Vduty
PWM
SEL
Cvdd
2.2uF
VDD
Precision current sink
CB_PWM12
CB_PWM34
CB_MODE
xPD
PWM
controller
AS3696
Safety features
Supply feedback
Vref Oscillator
FB12
FB34
xFault
Cfb
1uf-10uF
Vset1 Vset2 Vref Vfb Vshort V2_5 VSS
Epad
2.2uF
Rosc
Cosc
Sel_PPTrim
Cfb
1uf-10uF
www.austriamicrosystems.com
Rev 2.1 / 2012-11-29
2 - 14
Free Datasheet http://www.datasheet4u.com/





 AS3696
AS3696
austriamicrosystems
3 Electrical Characteristics
3.1 Absolute Maximum Ratings
Stresses beyond those listed 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 “Electrical Characteristics” is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Symbol
VDDMAX
Parameter
Supply voltage
Min
-0.3
VIN_2.5V
Maximum voltage
-0.3
VIN_5V
Maximum voltage
VIN_50V
Maximum voltage
Ilatch
Latch-Up immunity
TSTRG Storage Temperature Range
Humidity
Electrostatic Discharge on all pins
VESD_LV
( except D1...D4 )
Electrostatic Discharge on pins
VESD_HV
D1 ... D4
TBODY
Body Temperature during
Soldering
-0.3
-0.3
-100
-55
5
-2000
-4000
Max
5.4
V2_5
+0.3V
VDD
+0.3V
50
+100
150
85
2000
4000
260
Unit Note
V
Voltage limit due to internal shunt
regulator.
V Applicable for 2.5V pins (1)
V Applicable for 5V pins (2)
V Applicable for 50V pins (3)
mA Norm: EIA/JESD78
C Maximum Junction Temperature
% Non condensing
V Norm: MIL 883 E Method 3015
Human body model
V Norm: MIL 883 E Method 3015
Human body model
C
according to IPC/JEDEC J-STD-
020C
Note:
(1) Pins: V2_5, Vfb
(2) Pins: All pins except V2_5, D1-D4, Vfb
(3) Pins: D1 D4
3.2 Operating Conditions
3.2.1 General
Symbol
Rthja
Parameter
Thermal resistance
junction ambient
PDERATE PT Derating Factor
Tamb
Tj
Ambient Temperature
Junction Temperature
Conditions
QFN32
QFN32
Min Typ Max Unit
30 °C/W
33
mW/
C
-30 85 °C
-30 115 °C
3.2.2 Power supply
Symbol
Parameter
Conditions
Min Typ Max Unit
Supply Voltage VDD Shunt regulator operation. Supply current has
VDDint shunt regulator operation
to be limited between 10mA and 30mA by
external resistor
5.0 5.2 5.5
V
IDDmax
Maximum shunt regulator
current
30 mA
VDDext Supply Voltage VDD
no shunt regulator operation. No external
current limiting resistor needed
4.0 4.5 4.9 V
www.austriamicrosystems.com
Rev 2.1 / 2012-11-29
3 - 14
Free Datasheet http://www.datasheet4u.com/



Recommended third-party AS3696 Datasheet






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