參數(shù)資料
型號: AAT1343-T1-T
廠商: Advanced Analog Technology,lnc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 抗輻射高效,5安培開關(guān)穩(wěn)壓器
文件頁數(shù): 1/14頁
文件大?。?/td> 202K
代理商: AAT1343-T1-T
Advanced Analog Technology, Inc.
Advanced Analog Technology, Inc
.
Page 1 of 14 V1.0
AAT1343
Details are subject to change without notice
2-CHANNEL SWITCHING REGULATOR
FEATURES
z
Complete PWM Power Control Circuitry
z
Precision Reference
2.5V ± 1% (25
o
C)
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%
z
Wide Operating Frequency
10kHz to 800kHz
z
DD
V
Range
4.0V to 14.0V
PIN CONFIGURATION
TOP VIEW
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IE1
OE1
DTC1
GND
OUT1
V
REF
NE2
SCP
IE2
OE2
DTC2
OUT2
NE1
V
DD
TSSOP-16 PACKAGE
R
t
C
t
GENERAL DESCRIPTION
The AAT1343 provides an integrated two-channel
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,
oscillator, short circuit protection and voltage
reference circuit are the common features for these
two channels.
Both channels of AAT1343 can be used for DC-DC
converter operations including step-up, step-down,
and inverting. Dead-time control can be set to
provide 0% to 100% dead-time through a resistive
divider network. Soft-start can be implemented by
paralleling the DTC resistor with a capacitor. Two
dead-time control inputs are assigned for channel 1
(CH1) and channel 2 (CH2) individually, and
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.
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