AAT3128ITO-T1 ANALOGICTECH, AAT3128ITO-T1 Datasheet

no-image

AAT3128ITO-T1

Manufacturer Part Number
AAT3128ITO-T1
Description
RGB LED FASHION LIGHTING CONTROLLER
Manufacturer
ANALOGICTECH
Datasheet
1.AAT3128ITO-T1.pdf (12 pages)

Specifications of AAT3128ITO-T1

Led Driver Application
Backlighting, PDAs
No. Of Outputs
3
Output Current
60mA
Input Voltage
2.7V To 5.5V
Operating Temperature Range
-40°C To +85°C
Driver Case
RoHS Compliant
Topology
Charge Pump
General Description
The AAT3128 is a total solution controller for RGB LED
fashion lighting. A simplified control scheme greatly reduc-
es design complexity and accelerates time to market.
The AAT3128 contains a high efficiency tri-mode charge
pump DC/DC converter with 1X, 1.5X and 2X modes for
color LED applications. Current source outputs drive two
individual RGB LEDs for color displays, fashion and mood
lighting. With a single-wire S
LED module is easily controlled to display four distinct
lighting mood effects.
Low external parts count (two 1μF flying capacitors and
two small bypass capacitors) and high conversion effi-
ciency make the AAT3128 ideally suited for small bat-
tery-powered portable applications.
The AAT3128 has a thermal management system to pro-
tect the device in the event of an output short circuit
condition. Built-in soft-start circuitry prevents excessive
inrush current during start-up. A low current shutdown
feature disconnects the load from the input source and
reduces quiescent current to less than 1μA.
The AAT3128 is available in a 14-pin TSOPJW package.
Typical Application
ChargePump
3128.2008.02.1.1
V
BATTERY
TM
C
1μF
EN/SET
2
IN
Cwire interface, an RGB
38.3kΩ
R
SET
C
1μF
OUT
IN
CP
EN/SET
RSET
AAT3128
w w w . a n a l o g i c t e c h . c o m
GND
ISRC2
ISRC1
C1+
C2+
C1-
C2-
DR
DG
DB
Features
• 2.7V to 5.5V Input Voltage Range
• Compatible with Common Anode RGB LEDs
• Four S
• 0~60mA Programmable Current Source
• Low Noise Constant Frequency Operation
• No Inductors
• Small Application Circuit
• Regulated Output Current
• Integrated LED Control Switches
• Automatic Soft-Start
• Less than 1μA Shutdown Current
Applications
• Color Backlighting for Monochrome LCD Displays
• Color Display Lighting
• Fashion Lighting RGB LEDs
• Mobile Handsets
• MP3 Players
• PDAs
• Smart Phones
C1
1μF
C1
1μF
RGB LED Fashion Lighting Controller
2
Cwire Controlled Lighting Moods
R
G
PRODUCT DATASHEET
LED 1
B
RGB
AAT3128
R
G
B
LED 2
RGB
1

Related parts for AAT3128ITO-T1

Image
Part Number
Description
Manufacturer
Datasheet
Request R
AAT3128
Part Number:
AAT3128
Description:
RGB LED Fashion Lighting Controller
Manufacturer:
AnalogicTech
Datasheet:
AAT3128.pdf (13 pages)
AAT3172IWP-T1
Part Number:
AAT3172IWP-T1
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ANALOGICTECH
Datasheet:
AAT3172IWP-T1.pdf (15 pages)
AAT3216IGV-2.5-T1
Part Number:
AAT3216IGV-2.5-T1
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
ANALOGICTECH
Datasheet:
AAT3216IGV-2.5-T1.pdf (16 pages)
AAT1143IJS-1.2-T1
Part Number:
AAT1143IJS-1.2-T1
Description:
1MHz 400mA Step-Down Converter
Manufacturer:
AnalogicTech
Datasheet:
AAT1143IJS-1.2-T1.pdf (20 pages)
AAT1143IJS-1.8-T1
Part Number:
AAT1143IJS-1.8-T1
Description:
1MHz 400mA Step-Down Converter
Manufacturer:
AnalogicTech
Datasheet:
AAT1143IJS-1.8-T1.pdf (20 pages)
AAT1150IKS-3.3-T1
Part Number:
AAT1150IKS-3.3-T1
Description:
Manufacturer:
AnalogicTech
AAT1151IKS-1.0-T1
Part Number:
AAT1151IKS-1.0-T1
Description:
DC to DC Converter, 850kHz 700mA Synchronous Buck DC/DC Converter, Tape and Reel
Manufacturer:
AnalogicTech
Datasheet:
AAT1151IKS-1.0-T1.pdf (16 pages)
AAT1151IKS-3.3-T1
Part Number:
AAT1151IKS-3.3-T1
Description:
850kHz 700mA Synchronous Buck DC/DC Converter
Manufacturer:
AnalogicTech
Datasheet:
AAT1151IKS-3.3-T1.pdf (16 pages)
AAT1235IRN-T1
Part Number:
AAT1235IRN-T1
Description:
High Efficiency White LED Drivers for Backlight and Keypad
Manufacturer:
AnalogicTech
Datasheet:
AAT1235IRN-T1.pdf (20 pages)
AAT1265IJS-3.6-T1
Part Number:
AAT1265IJS-3.6-T1
Description:
Low Voltage 2MHz Step-Up DC/DC Converter in SC70JW Package
Manufacturer:
AnalogicTech
Datasheet:
AAT1265IJS-3.6-T1.pdf (13 pages)
AAT2500IWP-AT-T1
Part Number:
AAT2500IWP-AT-T1
Description:
1MHz Step-Down Converter/LDO Regulator
Manufacturer:
AnalogicTech
Datasheet:
AAT2500IWP-AT-T1.pdf (26 pages)
AAT2500IWP-AW-T1
Part Number:
AAT2500IWP-AW-T1
Description:
1MHz Step-Down Converter/LDO Regulator
Manufacturer:
AnalogicTech
Datasheet:
AAT2500IWP-AW-T1.pdf (26 pages)
AAT2510IWP-AA-T1
Part Number:
AAT2510IWP-AA-T1
Description:
Dual 400mA, 1MHz Step-Down DC-DC Converter
Manufacturer:
AnalogicTech
Datasheet:
AAT2510IWP-AA-T1.pdf (20 pages)
AAT2510IWP-IH-T1
Part Number:
AAT2510IWP-IH-T1
Description:
Dual 400mA, 1MHz Step-Down DC-DC Converter
Manufacturer:
AnalogicTech
Datasheet:
AAT2510IWP-IH-T1.pdf (20 pages)
AAT2557ITO-CT-T1
Part Number:
AAT2557ITO-CT-T1
Description:
500mA Battery Charger and 300mA LDO Regulator for Portable Systems
Manufacturer:
AnalogicTech
Datasheet:
AAT2557ITO-CT-T1.pdf (22 pages)

AAT3128ITO-T1 Summary of contents

Page 1

ChargePump TM General Description The AAT3128 is a total solution controller for RGB LED fashion lighting. A simplified control scheme greatly reduc- es design complexity and accelerates time to market. The AAT3128 contains a high efficiency tri-mode charge pump DC/DC ...

Page 2

ChargePump ChargePump TM TM Pin Descriptions Pin # Symbol Function 1 RSET Current Setting Resistor. Connect a resistor from RSET to GND to program the maximum LED current 2 DG Green LED On/Off Switch. DG turns on/off the green LED. ...

Page 3

ChargePump ChargePump TM TM Absolute Maximum Ratings Symbol Description IN GND C1+, C1-, C2+, C2- to GND C1+ C1- C2+ C2 ...

Page 4

ChargePump ChargePump TM TM Electrical Characteristics V = 3.6V 1.0μ OUT Symbol Description Input Power Supply V Input Operation Range IN I Operating Current CC I Shutdown Current SHDN ...

Page 5

ChargePump ChargePump TM TM Typical Characteristics Current Source Output vs. Input Voltage 90 80 -40° 25°C 85° 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 Input Voltage (V) Enable Input High Threshold vs. Input ...

Page 6

ChargePump ChargePump TM TM Typical Characteristics Input vs. Output Transient (V = 2.7V; Data ISRC1 (2V/div (200mV/div (200mA/div) Time (500µs/div) Input vs. Output Transient (V = 3.6V; Data ISRC1 (2V/div) ...

Page 7

ChargePump ChargePump TM TM Functional Block Diagram RSET S 2 Cwire EN/SET Interface Functional Description The AAT3128 is specifically designed to drive RGB color LEDs. This device is externally programmed via the sim- ple single wire serial S Cwire interface ...

Page 8

... EN/SET pin. 16 unique moods are selected based on the settings in Table 2. EN/SET Serial Interface The lighting mood output is controlled by the EN/SET pin, using AnalogicTech’s Simple Serial Control™ (S Cwire) interface. The interface records rising edges of 2 the EN/SET pin, and decodes them into 16 individual set- tings based on an internal preset ROM table ...

Page 9

ChargePump TM Application Information R Selection SET The maximum output current for current sources ISRC1 and ISRC2 is programmed by the R nal value of 38.3kΩ will set each current source output to 60mA each. Lower maximum current levels may ...

Page 10

ChargePump TM Equivalent Series Resistance ESR is an important characteristic to consider when selecting a capacitor. ESR is a resistance internal to a capacitor that is caused by the leads, internal connec- tions, size or area, material composition, and ambient ...

Page 11

ChargePump ChargePump TM TM AAT3128 Evaluation Board Schematic RGB1 RGB2 JPx JPx 38.3k DC- DC+ JP1 VIN 1μF J1 GND GND 3128.2008.02.1.1 3128.2008.02.1.1 RGB LED Fashion Lighting Controller RGB ...

Page 12

... RGB LED Fashion Lighting Controller RGB LED Fashion Lighting Controller Part Number (Tape and Reel) 1 VMXYY TSOPJW-14 - 0.10 4° ± 4° + 0.05 0. PRODUCT DATASHEET PRODUCT DATASHEET AAT3128 AAT3128 2 AAT3128ITO-T1 0.04 REF 0.45 ± 0.15 2.75 ± 0.25 End View 3128.2008.02.1.1 3128.2008.02.1.1 ...

Related keywords