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AAT1343 데이터시트 PDF




Advanced Analog Technology에서 제조한 전자 부품 AAT1343은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AAT1343 기능
기능 2-CHANNEL SWITCHING REGULATOR
제조업체 Advanced Analog Technology
로고 Advanced Analog Technology 로고


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AAT1343 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1343
2-CHANNEL SWITCHING REGULATOR
FEATURES
GENERAL DESCRIPTION
z Complete PWM Power Control Circuitry
The AAT1343 provides an integrated two-channel
z Precision Reference 2.5V ± 1% (25 oC)
z Under-Voltage Lockout (UVLO) Protection
z Open Drain Output
z Output Short Circuit Protection
z Low Dissipation Current 1.6mA
z Dead-Time Control 0 % to 100%
pulse-width-modulation (PWM) solution for the
power supply of DC-DC system; this device offers
the systems engineer flexibility to tailor-make the
power supply circuitry for specific applications.
Each channel contains its own error amplifier,
PWM comparator, dead–time control (DTC) and
output driver. The under-voltage protection,
z Wide Operating Frequency
10kHz to 800kHz
z VDD Range 4.0V to 14.0V
oscillator, short circuit protection and voltage
reference circuit are the common features for these
two channels.
DataSheet4U.com
DataShee
Both channels of AAT1343 can be used for DC-DC
PIN CONFIGURATION
converter operations including step-up, step-down,
and inverting. Dead-time control can be set to
TOP VIEW
provide 0% to 100% dead-time through a resistive
divider network. Soft-start can be implemented by
Ct 1
16 VREF
paralleling the DTC resistor with a capacitor. Two
Rt 2
15 SCP
dead-time control inputs are assigned for channel 1
NE1 3
14 NE2
(CH1) and channel 2 (CH2) individually, and
IE1 4
OE1 5
DTC1 6
OUT1
GND
7
8
13 IE2
12 OE2
11 DTC2
10 OUT2
9 VDD
dead-time control inputs can be used to control on /
off operation.
With a minimal number of external components, the
AAT1343 offers a simple and cost effective
solution.
TSSOP-16 PACKAGE
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––
Advanced Analog Technology, Inc.
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AAT1343 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
Advanced Analog Technology, Inc.
AAT1343
ELECTRICAL CHARACTERISTICS, VDD = 6.0V (UNLESS OTHERWISE
SPECIFIED) (SEE NOTE 1)
OSCILLATOR
PARAMETER
Frequency
Frequency Changes
with VDD
SYMBOL
f OSC
f V
TEST CONDITION
COSC = 220pF,
R OSC = 10 k
VDD = 4.0V to 14.0V,
TC = 25 oC,
COSC = 220pF,
R OSC = 10 k
MIN TYP MAX UNIT
320 400 480 kHz
- 1 -%
UNDER VOLTAGE PROTECTION
PARAMETER
SYMBOL
Upper Threshold
Voltage
VUPH
et4U.com Lower Threshold
Voltage
VUPL
Hysteresis
( VUPH – VUPL )
VHYS
TEST CONDITION MIN TYP MAX UNIT
TC = 25 oC
2.6 2.9 3.2 V
TDCat=aS2h5eoeCt4U.com
2.23 2.53 2.83 V
TC = 25 oC
- 0.37 -
V
SHORT CIRCUIT PROTECTION CONTROL
PARAMETER
SYMBOL TEST CONDITION
Input Threshold
Voltage
Vr1 CH1, CH2
Short-Circuit
Detection Threshold
Voltage
Vr 2
SCP Terminal Source
Current
I SCP
Stand-by Voltage
Latch Voltage
VSTB
VLT
MIN TYP MAX UNIT
0.95 1.05 1.15 V
1.48 1.64 1.80 V
3.5 2.5 1.5 µA
- 50 100 mV
- 30 100 mV
Note 1: Typical values of all parameters are specified at TC =25 oC.
DataShee
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AAT1343 전자부품, 판매, 대치품
www.DataSheet4U.com
Advanced Analog Technology, Inc.
BLOCK DIAGRAM
AAT1343
et4U.com
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VDD
VDD
VREF
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Advanced Analog Technology, Inc.
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