General Description AS110x family drivers providing matched curre

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General Description AS110x family drivers providing matched curre

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Low-Dropout Drivers
General Description
AS110x family drivers providing matched current source bias color LED, including white blue. current programmable using external resistor. AS1101 currents typical ISET (per LED) cathode voltage 150mV typical ISET cathode voltage AS1102, AS1103, AS1104 currents typical ISET (per LED) cathode voltage 150mV typical ISET cathode voltage where ISET current through external resistor connected CTRL pin. AS110x family drive high-current LEDs. AS1101, AS1102, AS1104 incorporate chipenable feature When devices disabled, supply current drops less than 1µA. devices pin-to-pin compatible FAN5611, FAN5612 FAN5614. AS1101, AS1102, AS1103 available 6-pin SC70 package; AS1104 available 8-pin MSOP package.
Features
Drivers Parallel-Connected LEDs Ultra-Low Voltage Drop: Less Than 150mV (for Liion Battery Support) Analog Brightness Control 80mA (AS1101) 40mA (AS1102, AS1103, AS1104) Electromagnetic Interference, SwitchingNoise Current-Matching Requires External Components Active-Low Shutdown Mode (AS1101, AS1102, AS1103) Shutdown-Current: Less Than SC70-6 Package (AS1101, AS1102, AS1103) MSOP-8 Package (AS1104) Pin-to-Pin Compatible FAN5611, FAN5612, FAN5614
Applications
AS110x devices ideal displays keyboard backlights, well lighting management units battery powered audio devices such players, mobile cordless phones, PDAs, portable players, consumer electronics.
Figure Typical Application Diagrams
Diode Control with On/Off Diode Control with On/Off
ISET VSET(3V) RSET ENABLE CTRL
I1/I2
I3/I4 VSET(3V)
ISET RSET ENABLE
CTRL
AS1101
AS1102
Diode Control
Diode Control with On/Off
ISET VSET(3V) RSET
CTRL
VSET(3V)
ISET RSET ENABLE
CTRL
AS1103
AS1104
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Revision
AS1101, AS1102, AS1103, AS1104
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Operating Conditions
Absolute Maximum Ratings
Stresses beyond those listed Table cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those listed Table implied. Exposure absolute maximum rating conditions extended periods affect device reliability. Table Absolute Maximum Ratings Parameter VI1, VI2, VI3, VI4, CTRL Voltage Power Dissipated Device TAMB 85°C Steady State Current Package Body Temperature Junction Temperature Storage Temperature Electrostatic Discharge Protection (ESD) Level
-0.3
Unit
Comment
SC70-6 MSOP-8
Human Body Model; Norm: MIL-STD883E 3015 methods.
reflow peak soldering temperature (body temperature) specified according IPC/JEDEC J-STD-020C "Moisture/Reflow Sensitivity Classification Non-Hermetic Solid State Surface Mount Devices".
Operating Conditions
Table Recommended Operating Conditions Parameter Cathode Voltage Enable Voltage Mode Enable Voltage Mode Ambient Temperature
0.15
Unit
Comments
applicable AS1103.
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AS1101, AS1102, AS1103, AS1104
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Electrical Characteristics AS1101
Electrical Characteristics
Electrical Characteristics AS1101
Conditions: TAMB 25°C (unless otherwise noted). Table Electrical Characteristics AS1101 Parameter ISET Range Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio LED-to-LED Current Matching ISET Mode Symbol ISET OCMR OCMR OCMR OCMR OCMR OCMR OCMR OCMR OCMR Match ISET,OFF Conditions ISET 25µA, VSAT 150mV, ISET 40µA, VSAT 150mV, ISET 75µA, VSAT 150mV, ISET 25µA, VSAT 600mV, ISET 40µA, VSAT 600mV, ISET 75µA, VSAT 600mV, ISET 25µA, VSAT 1000mV, ISET 40µA, VSAT 1000mV, ISET 75µA, VSAT 1000mV, VCTRL VSAT VCTRL VSAT TAMB 25°C VCTRL VSAT Peak Efficiency
Units
Mode
IIN,OFF
Efficiency (VIN VSAT) VIN. Information parameter, guaranteed design.
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AS1101, AS1102, AS1103, AS1104
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Electrical Characteristics AS1102, AS1103, AS1104
Electrical Characteristics AS1102, AS1103, AS1104
Conditions: TAMB 25°C (unless otherwise noted). Table Electrical Characteristics AS1102, AS1103, AS1104 Parameter ISET Range Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio Output Current Multiplication Ratio LED-to-LED Current Matching ISET Mode
Symbol ISET OCMR OCMR OCMR OCMR OCMR OCMR OCMR OCMR OCMR Match ISET,OFF
Conditions ISET 25µA, VSAT 150mV, ISET 40µA, VSAT 150mV, ISET 75µA, VSAT 150mV, ISET 25µA, VSAT 600mV, ISET 40µA, VSAT 600mV, ISET 75µA, VSAT 600mV, ISET 25µA, VSAT 1000mV, ISET 40µA, VSAT 1000mV, ISET 75µA, VSAT 1000mV, VCTRL VSAT VCTRL VSAT TAMB 25°C VCTRL VSAT
Units
Mode
IIN,OFF
Peak Efficiency
applicable AS1103. applicable AS1103. Efficiency (VIN VSAT) VIN. Information parameter, guaranteed design.
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AS1101, AS1102, AS1103, AS1104
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Typical Performance Characteristics
ISET CTRL CTRL ISET (RSET
AS1101
ILED
ISET 50µA
ISET
ISET (µA)
AS1102-AS1104
ILED
ISET 100µA
ILED (mA)
ILED (mA)
ISET 25µA ISET 50µA
ISET 25µA
AS1102-AS1104
ILED RSET
AS1102-AS1104 ILED (mA)
ILED RSET
ILED
Vsat=0.6V Vsat=0.5V Vsat=0.4V Vsat=0.3V
Vsat=1V Vsat=0.6V Vsat=0.3V Vsat=0.15V
RSET
RSET
AS1101 ILED (mA) Vsat=0.30V Vsat=0.25V Vsat=0.20V Vsat=0.15V Vsat=0.10V Vsat=0.05V
ILED RSET
ILED rature 0.25V, ISET 50µA)
12.5 ILED
11.5
RSET
rature (°C)
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AS1101 OCMR
ISET OCMR ISET (µA)
AS1102 AS1104
ISET
ISET (µA)
Figure Control Voltage Transient Response
CH2: Current (10mA/Div) CH1: Control Voltage (2V/Div)
Figure Enable Voltage Transient Response
CH2: Current (10mA/Div)
CH1: Enable Voltage (2V/Div)
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Revision
AS1101, AS1102, AS1103, AS1104
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Application Information
Figure Typical Application Diagrams
Diode Control with On/Off Diode Control with On/Off
ISET VSET(3V) RSET ENABLE CTRL
I1/I2
I3/I4 VSET(3V)
ISET RSET ENABLE
CTRL
AS1101
AS1102
Diode Control
Diode Control with On/Off
ISET VSET(3V) RSET
CTRL
VSET(3V)
ISET RSET ENABLE
CTRL
AS1103
AS1104
Figure Performance Characteristics
AS1101 ISET (µA) ILED ISET ISET (µA) AS1102 AS1104 ILED ISET
ILED (mA)
ILED (mA)
AS1101
AS1101
AS1102 AS1104 ILED (mA)
Type
ILED
Type
ILED (mA)
Resistor
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AS1101, AS1102, AS1103, AS1104
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Setting Current
Setting Current
current going into LEDs approximately OCMR times greater then current ISET. current controlled VSET RSET (see Figure according formula: ILED OCMR (VSET VCTRL) RSET
VSET specific current, RSET value determined using diagram shown Section Typical Performance Characteristics page other option, value ISET determined using graph "ISET VCTRL" page Brightness also adjusted driving ENABLE CTRL with signal.
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AS1101, AS1102, AS1103, AS1104
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Descriptions Assignments
Pinout Packaging
Descriptions Assignments
Table Descriptions (See Figure Name CTRL Figure Assignment (Top View) Description Sets current; connect external resistor. Connect cathode LED. Connect cathode LED. Connect cathode LED. Connect cathode LED. Ground Device Enable Input.
CTRL
CTRL
CTRL
I1/I2
AS1101
I3/I4
AS1102
AS1103
6-Pin SC70 Packages
CTRL
AS1104
8-Pin MSOP Package
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AS1101, AS1102, AS1103, AS1104
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Package Drawings Markings
Package Drawings Markings
Figure SC70-6 Package
Notes: dimensions millimeters. Dimensions inclusive plating. Dimensions exclusive mold flash metal burrs. specifications comply with JEITA SC88 JEDEC-MO-203. Symbol
1.80 0.15 1.15 1.80 0.10 0.80 0.00 0.80 0.10 0.10 0.26
0.65
2.20 0.30 1.35 2.40 0.40 1.00 0.10 1.10 0.18 0.30 0.46
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Package Drawings Markings
Figure MSOP-8 Package
Notes: dimensions millimeters (angles degrees), unless otherwise specified. Datums determined datum plane Dimensions determined datum plane Dimensions package; dimensions bottom package. Cross section determined 0.18 0.22mm from leadtip. Dimension does include mold flash, protrusions, gate burrs.
Dimension does include inter-lead flash protrusion. MSOP-8 Package Outline Symbol
Millimeters
1.10 0.10 0.86 3.00 2.95 4.90 3.00 2.95 0.51 0.51 0.15 0.15 0.31 0.41
Tolerance
±0.05 ±0.05 ±0.10 ±0.10 ±0.15 ±0.10 ±0.10 ±0.13 ±0.18 +0.15 -0.08 +0.15 -0.08 ±0.08 ±0.08
Symbol
Millimeters
0.33 0.30 0.18 0.15 12.0 12.0 0.55 0.95 0.10 0.08 0.25 .525
Tolerance
+0.07 -0.08 ±0.05 ±0.05 +0.03 -0.02 ±3.0 ±3.0 ±3.0 ±0.15
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AS1101, AS1102, AS1103, AS1104
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Ordering Information
Part Number AS1101 AS1102 AS1103 AS1104 MSOP-8 SC70-6 Tape Reel Tube Package Type Delivery Form Description Dual driver with enable. Triple driver with enable. Quad driver. Quad driver with enable.
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AS1101, AS1102, AS1103, AS1104
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Copyrights
Copyright 1997-2005, austriamicrosystems Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered rights reserved. material herein reproduced, adapted, merged, translated, stored, used without prior written consent copyright owner. products companies mentioned trademarks registered trademarks their respective companies.
Disclaimer
Devices sold austriamicrosystems covered warranty patent indemnification provisions appearing Term Sale. austriamicrosystems makes warranty, express, statutory, implied, description regarding information forth herein regarding freedom described devices from patent infringement. austriamicrosystems reserves right change specifications prices time without notice. Therefore, prior designing this product into system, necessary check with austriamicrosystems current information. This product intended normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, high reliability applications, such military, medical life-support lifesustaining equipment specifically recommended without additional processing austriamicrosystems each application. information furnished here austriamicrosystems believed correct accurate. However, austriamicrosystems shall liable recipient third party damages, including limited personal injury, property damage, loss profits, loss use, interruption business indirect, special, incidental consequential damages, kind, connection with arising furnishing, performance technical data herein. obligation liability recipient third party shall arise flow austriamicrosystems rendering technical other services.
Contact Information
Headquarters austriamicrosystems A-8141 Schloss Premstaetten, Austria Tel: 3136 Fax: 3136 e-mail: info@austriamicrosystems.com Sales Offices, Distributors Representatives, please visit:
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