Details subject change without notice 2-CHANNEL SWITCHING REGULAT

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Details subject change without notice 2-CHANNEL SWITCHING REGULAT

Datasheet Thumbnail

Top Searches for this datasheet

AAT1343
Details subject change without notice
2-CHANNEL SWITCHING REGULATOR
FEATURES
Complete Power Control Circuitry Precision Reference2.5V 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
AAT1343 provides integrated two-channel pulse-width-modulation (PWM) solution power supply DC-DC system; this device offers systems 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 these channels. Both channels AAT1343 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 channel (CH1) channel (CH2) individually, dead-time control inputs used control operation. With minimal number external components, AAT1343 offers simple cost effective solution.
Range4.0V 14.0V
CONFIGURATION
VIEW
DTC1 OUT1 VREF DTC2 OUT2
TSSOP-16 PACKAGE
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
DESCRIPTION
NAME DESCRIPTION External Timing Capacitor
DTC1 OUT1 OUT2 DTC2 VREF
External Timing Resistor
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.
Page V1.0
AAT1343
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 CONDITIONS
CHARACTERISTICS Supply Voltage, SYMBOL 14.0 UNIT
Input Voltage Output Voltage Oscillation (OSC) Capacitance Oscillation (OSC) Resistance Oscillation (OSC) Frequency Output Current, OUT1 Operating Free-Air Temperature
15,000 50.0
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
ELECTRICAL CHARACTERISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE
OSCILLATOR PARAMETER
SYMBOL
Frequency
TEST CONDITION 220pF,
UNIT
Frequency Changes with
4.0V 14.0V, 220pF,
UNDER VOLTAGE PROTECTION PARAMETER SYMBOL Upper Threshold VUPH Voltage Lower Threshold VUPL Voltage Hysteresis VHYS VUPH VUPL
TEST CONDITION
UNIT
2.23
2.53 0.37
2.83
SHORT CIRCUIT PROTECTION CONTROL PARAMETER SYMBOL TEST CONDITION
UNIT
Input Threshold Voltage Short-Circuit Detection Threshold Voltage Terminal Source Current Stand-by Voltage Latch Voltage
VSTB
CH1,
0.95
1.05
1.15
1.48
1.64
1.80
Note Typical values parameters specified
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
ELECTRICAL CHARACTERISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE (CONT.)
REFERENCE VOLTAGE PARAMETER
SYMBOL
TEST CONDITION
UNIT
Reference Voltage Input Voltage Regulation Output Voltage Regulation
VREF
-1mA 2.480 2.505 2.530 -1mA 4.0V 14.0V -0.1mA
(ERROR AMPLIFIER) PARAMETER SYMBOL Input Offset Voltage
TEST CONDITION CH1, CH2, Unity Gain
UNIT
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
CH1, CH1,
OE=1.25V OE=1.25V
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
ELECTRICAL CHARACTERISTICS, 6.0V (UNLESS OTHERWISE SPECIFIED) (SEE NOTE (CONT.)
DEAD-TIME CONTROL PARAMETER SYMBOL Input Bias Current TEST CONDITION VDTC 2.0V UNIT
Input Threshold Voltage (DTC) Latch Input Voltage Latch Mode Source Current
OUTPUT STAGE PARAMETER
Vd100 VDTC
Duty 10kHz Duty 100%, 10kHz 40µA DTC1, DTC2
1.87 1.38 2.28
1.97 1.48 2.48
2.07 1.58
Saturation Voltage Leakage Current
SYMBOL VSAT
TEST CONDITION 75mACH1,
UNIT
LEAK
=14.0V
OPERATING CURRENT SYMBOL PARAMETER DD-OFF Supply Current DD-ON
TEST CONDITION
UNIT
Output "OFF" State
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
BLOCK DIAGRAM
Err-Amp Comp
OUT1
Err-Amp
OUT2
DTC1
DTC2
LATCH
UVLO
LATCH
VREF
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
APPLICATION CIRCUIT
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
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
AAT1343
PACKAGE DIMENSION
16-PIN TSSOP
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
PACKAGE DIMENSION (CONT.)
SYMBOLS
DIMENSIONS MILLIMETERS 1.05 0.05 -0.20 -4.900 6.20 4.30 -0.50 -TYP 1.10 0.10 1.00 0.25 0.127 5.075 6.40 4.40 0.65 0.60 -MAX 1.20 0.15 1.05 0.28 -5.100 6.60 4.50 -0.70 0.076
DEMINSIONS INCHES 0.041 0.002 -0.008 -0.1930 0.244 0.170 -0.020 -TYP 0.043 0.004 0.039 0.010 0.005 0.1998 0.252 0.173 0.026 0.024 -MAX 0.047 0.006 0.041 0.011 -0.2000 0.260 0.177 -0.028 0.003
NOTE: CONTROLLING DIMENSION: MILLIMETERS LEAD FRAME MATERIAL: OLIN C7025/EFTEC DIMENSION DOES INCLUDE MOLD FLASH, BURRS GATE BURRS. MOLD FLASH, BURRS GATE BURRS SHALL EXCEED 0.006" [0.15 MILLIMETERS] END. DIMENSION "E1" DOES INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL 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 MO-153.
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
TAPE REEL
PACKING METHOD: 2,500PCS/REEL, REEL/BOX
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
TAPE REEL (CONT.)
NOTE:
SPROCKET HOLE PITCH CUMULATIVE TOLERANCE MILLIMETERS. CAMBER EXCEED MILLIMETER MILLIMETERS. MATERIAL: ANTI-STATIC 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.
PART MARKING
TSSOP16 MARKING
AAT1343 XXXXXX
TSSOP16 BACK MARKING
YYWW
Advanced Analog Technology, Inc.
Page V1.0
AAT1343
ORDERING INFORMATION
Advanced Analog Technology, Inc.
Page V1.0

Details subject change without notice 2-CHANNEL SWITCHING REGULAT

Top Searches for this datasheet

Other recent searches