Details subject change without notice 2-CHANNEL SWITCHING REGULAT
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AAT1341
Details subject change without notice
2-CHANNEL SWITCHING REGULATOR
FEATURES
Complete Power Control Circuitry Under-Voltage Lockout (UVLO) Protection Open Drain Output Output Short Circuit Protection Dissipation Current1.6mA Dead-Time Control0 100% Wide Operating Frequency 10kHz 800kHz
GENERAL DESCRIPTION
AAT1341 provides integrated two-channel pulse-width-modulation (PWM) solution power supply DC-DC system; this device offers system engineers 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 channels. Both channels AAT1341 used DC-DC converter operations including step-up, step-down, inverting. Dead-time control provide 100% dead-time through resistive divider network. Soft-start implemented paralleling resistor with capacitor. dead-time control inputs assigned individually, dead-time control inputs used control operation. With minimal number external components, AAT1341 offers simple cost effective solution.
Range4.0V 14.0V
CONFIGURATION
P-16PA
Advanced Analog Technology, Inc.
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AAT1341
DESCRIPTION
NAME DESCRIPTION
External Timing Capacitance External Timing Resistance
DTC1 OUT1 OUT2 DTC2 VREF
Noninverting Input Error Amplifier Inverting Input Error Amplifier Output Error Amplifier Output Dead-Time Soft-Start Setting Output Ground Power Supply Output Output Dead-Time Soft-Start Setting Output Error Amplifier Inverting Input Error Amplifier Noninverting Input Error Amplifier Timer Latch Setting Reference Voltage (2.5V) Output
Advanced Analog Technology, Inc.
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AAT1341
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS SYMBOL VALUE 14.0 UNIT
Supply Voltage Input Voltage DTC) Output Voltage Output Current Operating Free-Air Temperature Range Storage Temperature Range Power Dissipation
+0.3
Tstorage
RECOMMENDED OPERATING CONDITION
CHARACTERISTICS Supply Voltage, Input Voltage, IE1, SYMBOL 14.0 UNIT
15,000 50.0
Output Voltage Oscillation (OSC) Capacitance Oscillation (OSC) Resistance Oscillation (OSC) Frequency Output Current, OUT1 Operating Free-Air Temperature
Advanced Analog Technology, Inc.
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AAT1341
ELECTRICAL CHARACTERISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE
OSCILLATOR PARAMETER TEST CONDITION 220pF, UNIT
Frequency
Frequency Changes with
4.0V 14.0V, 220pF,
UNDER VOLTAGE PROTECTION PARAMETER Upper Threshold Voltage VUPH
TEST CONDITION
UNIT
2.90 2.53 0.37
Lower Threshold Voltage Hysteresis VUPH VUPL
VUPL VHYS
SHORT CIRCUIT PROTECTION CONTROL PARAMETER TEST CONDITION
UNIT
Input Threshold Voltage Short-Circuit Detect Threshold Voltage Terminal Source Current Stand-by Voltage Latch Voltage
VSTB
CH1,
0.90 1.48
1.05 1.64
1.20 1.80
Note1: Typical values parameters specified
Advanced Analog Technology, Inc.
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AAT1341
ELECTRICAL CHARACTERTISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE (CONT.)
REFERENCE VOLTAGE PARAMTER
SYMBOL
TEST CONDITION
UNIT
Reference Voltage Input Voltage Regulation Output Regulation
VREF
-1mA -1mA 4.0V 14.0V -0.1mA
(ERROR AMPLIFIER) PARAMETER SYMBOL Input Offset Voltage
TEST CONDITION
UNIT
CH1, CH2, Unity Gain CH1, CH1,
±100
Input Bias Current Input Voltage Range Open-Loop Voltage Gain Output Voltage Swing Output Sink Current Output Source Current Common-Mode Rejection Ratio
VOS+ VOS- CMRR
OE=1.25V OE=1.25V
Advanced Analog Technology, Inc.
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AAT1341
ELECTRICAL CHARACTERISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE (CONT.)
DEAD-TIME CONTROL PARAMETER SYMBOL Input Bias Current TEST CONDITION VDTC 2.0V UNIT
1.79 1.32 2.28
1.97 1.48 2.48
2.15 1.64
Input Threshold Voltage (DTC) Latch Input Voltage Latch Mode Source Current
OUTPUT STAGE PARAMETER
Vd100 VDTC
Duty 10kHz Duty 100%, 10kHz 40µA DTC1, DTC2=0V
Saturation Voltage Leakage Current
OPERATING CURRENT PARAMETER
SYMBOL VSAT
LEAK
TEST CONDITION 75mACH1, =14.0V
UNIT
TEST CONDITION
UNIT
DD-OFF Supply Current DD-ON
Output "OFF" State
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
BLOCK DIAGRAM
Err-Amp Comp
OUT1
Err-Amp
OUT2
DTC1
DTC2
LATCH
UVLO
LATCH
VREF
Advanced Analog Technology, Inc.
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AAT1341
APPLICATION CIRCUIT
VREF
Optional Circuit: Charge Pump Circuit
OUT1
Inverting Output
VREF
AAT1341
OUT2
Step Output
VREF
VREF
DTC1 DTC2
CSCP
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
TIMING CHART
1.97V
1.05V
1.48V
OUTPUT OUTPUT
1.64V
tSCP
Comp
2.53V
LOCKOUT FREE
Note:
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
PACKAGE DIMENSION
16-PIN
Advanced Analog Technology, Inc.
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AAT1341
PACKAGE DIMENSION (CONT.)
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
PACKAGE DIMENSION (CONT.)
SYMBOLS
NOTE:
DIMENSIONS MILLIMETERS 1.47 1.60 1.73 0.10 -0.25 -1.45 -0.33 0.41 0.51 0.19 0.20 0.25 9.80 9.91 10.01 5.79 5.99 6.20 3.81 3.91 3.99 -1.27 -0.38 0.71 1.27 -0.076
DEMINSIONS INCHES 0.058 0.063 0.068 0.004 -0.010 -0.057 -0.013 0.016 0.020 0.0075 0.0080 0.0098 0.386 0.390 0.394 0.228 0.236 0.244 0.150 0.154 0.157 -0.050 -0.015 0.028 0.050 -0.003
CONTROLLING DIMENSION: INCH LEAD FRAME MATERIAL: COPPER DIMENSION DOES INCLUDE MOLD FLASH, BURRS GATE BURRS. MOLD FLASH, BURRS GATE BURRS SHALL EXCEED 0.006" [0.15 MILLIMETERS] DIMENSION "E1" DOES INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SAHLL EXCEED 0.010" [0.25 MILLIMETERS] SIDE. DIMENSION DOES INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL 0.003" [0.08 MILLIMETERS] TOTAL EXCESS DIMENSION MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT LOCATED LOWER RADIUS FOOT. MINIMUM SPACE BETWEEN PROTRUSION ADJACENT LEAD 0.0028" [0.07 MILLIMETERS]. TOLERANCE: 0.010" [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC. REFERENCE DOCUMENT: JEDEC SPEC MS-012
Advanced Analog Technology, Inc.
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AAT1341
TAPE REEL
Advanced Analog Technology, Inc.
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AAT1341
TAPE REEL (CONT.)
X.XXX X.XXX X.XX
0.0025 0.006
0.025 0.10 0.25
UNIT: MILLIMETERS
NOTE:
SPROCKET HOLE PITCH CUMULATIVE TOLERANCE 0.2. CAMBER EXCEED MILLIMETER MILLIMETERS. MATERIAL: BLACK ADVANTEK POLYSTYRENE. MEASURED PLANE MILLIMETERS ABOVE BOTTOM POCKET. MEASURED FROM PLANE INSIDE BOTTOM POCKET SURFACE CARRIER. POCKET POSITION RELATIVE SPROCKET HOLE MEASURED TRUE POSITION POCKET, POCKET HOLE.
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
PART MARKING
SOP16 MARKING
AAT1341 BXXXXX.X YYWW TAIWAN
DATE CODE
(0416 16th week Year 2004)
NOTE: SOP16 BACK MARKING.
Advanced Analog Technology, Inc.
Page V1.0
AAT1341
ORDERING INFORMATION
Advanced Analog Technology, Inc.
Page V1.0
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