Details subject change without notice. FOUR-CHANNEL DIGITAL STILL
|
|
|
Top Searches for this datasheet
AAT1401
Details subject change without notice.
FOUR-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY
FEATURES
Complete Power Control Circuitry Input Voltage Range: 3.0V 6.5V (CH1~CH4) Start-Up Voltage: 1.4V (CH4) Separate On/Off Control CH1~CH4 Supports Synchronous Boost/Buck Rectification (CH1) Supports Synchronous Boost Rectification (CH4) Supports Boost/Buck Conversion (CH2) Supports Boost Conversion (CH3) Supports White Driver (CH3) Totem-Pole Output Short Circuit Protection Wide Operating Frequency: 1MHz
GENERAL DESCRIPTION
AAT1401 provides integrated four channel pulse-width-modulation (PWM) solution power supply DC-DC converter; this device offers system engineer flexibility tailor-make power supply circuitry specific applications. Each channel contains error amplifier, comparator, dead-time control (DTC) output driver. under-voltage protection, oscillator, short circuit protection voltage reference circuit common features four channels. addition boost conversion, AAT1401 also synchronous rectification systems with alternatives synchronous boost buck channel (CH1) boost buck conversion channel (CH2).
LQFP48 VQFN40 Package APPLICATIONS
Camcorders Digital Cameras
Imaging Devices
Advanced Analog Technology, Inc.
Page
AAT1401
CONFIGURATION
AAT1401
AAT1401
(VQFN-40)
(LQFP-48)
FUNCTION TABLE
Condition SHDN "Lo"
Channel Status
SD1= "Lo" SD1= "Hi" SD2= "Lo" SD2= "Hi" SD3= "Lo" SD3= "Hi" SD4= "Lo" SD4= "Hi"
"Hi"
Advanced Analog Technology, Inc.
Page
AAT1401
DESCRIPTION (VQFN-40)
Name
SHDN DTC1 DTC4
Function
Boost Buck Select ON/OFF Control ON/OFF Control Power ON/OFF Control Inverted Input Error Amplifier (EA1) Inverted Input Error Amplifier (EA4) Dead Time Control Output Error Amplifier (EA1) Dead Time Control Output Error Amplifier (EA4) External Frequency Setting Resistor External Frequency Setting Capacitor Reference Voltage 2.77V Output Ground Power Supply Reference Voltage 1.245V Output Short Circuit Protection Capacitor Connection ON/OFF Control ON/OFF Control Inverted Input Error Amplifier (EA3) Inverted Input Error Amplifier (EA3) Inverted Input Error Amplifier (EA2) Output Error Amplifier (EA3) Output Error Amplifier (EA2) Dead Time Control Dead Time Control Boost Buck Select Totem Pole Type Output Totem Pole Type Output Synchronous Rectifier Side Output Output Buffer Ground Output Buffer Power Supply Totem Pole Type Output Totem Pole Type Output Synchronous Rectifier Side Output
VREF
IE3A DTC3 DTC2 OUT2 OUT3 OUT4_2 PGND PVDD OUT4_1 OUT1_1 OUT1_2
Advanced Analog Technology, Inc.
Page
AAT1401
DESCRIPTION (LQFP-48)
Name
SHDN DTC1 DTC4
Function
Boost Buck Select ON/OFF Control ON/OFF Control Power ON/OFF Control Inverted Input Error Amplifier (EA1) Inverted Input Error Amplifier (EA4) Dead Time Control Output Error Amplifier (EA1) Dead Time Control Output Error Amplifier (EA4) External Frequency Setting Resistor External Frequency Setting Capacitor Reference Voltage 2.77V Output Ground Power Supply Reference Voltage 1.245V Output Short Circuit Protection Capacitor Connection ON/OFF Control ON/OFF Control Inverted Input Error Amplifier (EA3) Inverted Input Error Amplifier (EA3) Inverted Input Error Amplifier (EA2) Output Error Amplifier (EA3) Output Error Amplifier (EA2) Dead Time Control Dead Time Control Boost Buck Select
VREF
IE3A DTC3 DTC2 OUT2 OUT3 OUT4_2 PGND PVDD OUT4_1 OUT1_1 OUT1_2
Totem Pole Type Output Totem Pole Type Output Synchronous Rectifier Side Output Output Buffer Ground Output Buffer Power Supply Totem Pole Type Output Totem Pole Type Output Synchronous Rectifier Side Output
Advanced Analog Technology, Inc.
Page
AAT1401
BLOCK DIAGRAM
Advanced Analog Technology, Inc.
Page
AAT1401
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage Input Voltage SHDN) Symbol Value Unit
Output Voltage Output Current Output Peak Current 2µs, Duty5%) Operating Temperature Range Storage Temperature Range
+0.3 +200
opeak
Tstorage
RECOMMENDED OPERATING CONDITIONS
Parameter Startup Supply Voltage, Supply Voltage, (CH1~CH4) Symbol 0.28 1.55 Unit
Input Voltage, (IE1~IE4) Output Voltage Oscillator Capacitor Oscillator Resistor (Note Oscillator Frequency Output Current, (CH1~CH4) Output Current Error Amplifier Operating Free-Air Temperature
Advanced Analog Technology, Inc.
Page
AAT1401
ELECTRICAL CHARACTERISTICS, 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE OSCILLATOR
Parameter Symbol
Frequency "Hi" Level Output Voltage "Lo" Level Output Voltage
VOSCH VOSCL
Test Condition 100pF
Unit
100pF 100pF 3.0V 6.5V, 100pF,
0.927 1.025 1.123 0.274 0.323 0.371
Frequency Change with Frequency Change with
UNDER VOLTAGE PROTECTION Parameter Symbol Test Condition VUPH Upper Threshold Voltage
Unit
2.53
2.72 2.47 0.25
2.91
Lower Threshold Voltage Hysteresis VUPH VUPL
VUPL VHYS
SHORT CIRCUIT PROTECTION CONTROL Parameter Symbol Test Condition
Unit
Input Threshold Voltage Latch Reset Voltage Short-Circuit Detection Threshold Voltage Terminal Source Current
Vtscd
CH1,2,3,4
1.220 1.245 1.285 0.58
2.47 0.63
0.68
Note Typical values parameters except
VREF
VREF
(dev)
specified
Advanced Analog Technology, Inc.
Page
AAT1401
ELECTRICAL CHARACTERISTICS, SPECIFIED (SEE NOTE (CONT.)
REFERENCE VOLTAGE Parameter
5.0V (UNLESS OTHERWISE
Reference Voltage Short-Circuit Output Current Input Voltage Regulation Output Regulation Reference Voltage Change with Temperature
(ERROR AMPLIFIER) Parameter
Symbol Test Conditions VREF -1mA 1.227 1.245 1.263 VREF -1mA 3.0V 6.5V -0.1mA
VREF VREF
Unit
Symbol
Test Condition
Unit
Threshold Voltage VTH3 VTH3A Input Bias Current Input Voltage Range Open-Loop Voltage Gain Unity-Gain Bandwidth Output Voltage Swing Output Sink Current Output Source Current VOS+ VOS-
CH1,2,4, OE=0.7V
1.227 1.245 1.263 1.242 1.260 1.278
0.352 0.370 0.398 CH1,4, 0.28V 1.55V CH1,4 0.28 OE=0.7V OE=0.7V
1.55
Advanced Analog Technology, Inc.
Page
AAT1401
ELECTRICAL CHARACTERISTICS, 5.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE (CONT.)
DEAD-TIME CONTROL Parameter Input Bias Current (DTC1~DTC4)
Test Condition
Unit
BDTC VDTC 0.2V 1.3V Vd100 Duty 500kHz Duty 100%, 500kHz Duty 100%, 500kHz
Input Threshold Voltage (DTC1,2,3) Input Threshold Voltage (DTC4)
0.323 0.423
1.125 1.225
Duty 500kHz V4d100
0.223 0.323
1.025 1.125
OUTPUT STAGE Parameter
Output Resistor
SHUTDOWN Parameter High Level Level Input Current OPERATING CURRENT Parameter
Test Condition 15mA (CH1~CH3)
Unit
-15mA (CH4) 15mA (CH1~CH3) 15mA (CH4)
Test Condition Active Mode Stand-by Mode CH1~CH4
Unit
Test Condition
Supply Current
DD-OFF SHDN=0V DD-ON SHDN="Hi"; SD1~SD4= "Hi"
Unit
Advanced Analog Technology, Inc.
Page
AAT1401
APPLICATION CIRCUIT
Synchronous Solution
Advanced Analog Technology, Inc.
Page
AAT1401
APPLICATION CIRCUIT
Non-Synchronous Solution
Advanced Analog Technology, Inc.
Page
AAT1401
APPLICATION CIRCUIT
Solution
Advanced Analog Technology, Inc.
Page
AAT1401
APPLICATION CIRCUIT
Solution
Advanced Analog Technology, Inc.
Page
AAT1401
APPLICATION CIRCUIT
Synchronous Solution
Non-Synchronous Solution
Advanced Analog Technology, Inc.
Page
AAT1401
OPERATION CONDITION SETTING
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION
VQFN40 PACKAGE
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION
VQFN40 PACKAGE (CONT.)
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION (CONT.)
VQFN40 PACKAGE (CONT.) DIMENSIONS MILLIMETERS
SYMBOL
DIMENSIONS INCHES
0.80 0.00 0.225 0.19 5.90 4.650 5.90 4.650 -0.35
0.90 0.02 0.250 0.20 6.00 4.800 6.00 4.800 0.50 0.40
1.00 0.05 0.275 0.25 6.10 4.950 6.10 4.950 -0.45 0.076
0.031 0.009 0.0075 0.232 0.183 0.232 0.183 -0.014
0.035 0.0008 0.010 0.0080 0.236 0.189 0.236 0.189 0.020 0.016
0.039 0.0020 0.011 0.0100 0.240 0.195 0.240 0.195 -0.018 0.003
NOTE: TERMINAL IDENTIFIER LASER MARKED FEATURE.
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION
LQFP48 PACKAGE
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION
LQFP48 PACKAGE (CONT.)
Advanced Analog Technology, Inc.
Page
AAT1401
PACKAGE DIMENSION
LQFP48 PACKAGE (CONT.) DIMENSIONIN MILLIMETERS
SYMBOL
-0.05 1.35 0.17 0.09 8.80 6.90 8.80 6.90 -0.45
-1.40 0.22 -9.00 7.00 9.00 7.00 0.50 0.60 1.00
1.60 0.15 1.45 0.27 0.20 9.20 7.10 9.20 7.10 -0.75 -7.0 0.08
Advanced Analog Technology, Inc.
Page
Other recent searches
SLP-0B81A-51 - SLP-0B81A-51 SLP-0B81A-51 Datasheet
MMB3505 - MMB3505 MMB3505 Datasheet
MMB3510 - MMB3510 MMB3510 Datasheet
JOC0195 - JOC0195 JOC0195 Datasheet
JC25J3A - JC25J3A JC25J3A Datasheet
CSR13 - CSR13 CSR13 Datasheet
B84131 - B84131 B84131 Datasheet
APT15DQ60K - APT15DQ60K APT15DQ60K Datasheet
APT15DQ60KG - APT15DQ60KG APT15DQ60KG Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
