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AAT1104 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AAT1104
기능 2-CHANNEL SWITCHING REGULATOR CONTROLLER
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AAT1104 데이터시트, 핀배열, 회로
Advanced Analog Technology, Inc.
AAT1104/AAT1104A
2-CHANNEL SWITCHING REGULATOR CONTROLLER
Features
www.DataShzeet4UC.coomm plete PWM Power Control Circuitry
z Precision Reference 2.505V±1% (25 oC)
z Under-voltage Lockout 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 VDD range 4.0V to 6.5V
Pin Configuration
TOP VIEW
CT
RT
NON1
INV1
FB1
1
2
3
4
5
16 Vref
15 SCP
14 NON2
13 INV2
12 FB2
DTC1 6
11 DTC2
OUT1 7
10 OUT2
GND 8
9 VDD
(TSSOP-16 PACKAGE)
General Description
The AAT1104/AAT1104A provides an integrated
two-channel pulse-width-modulation (PWM)
solution for the power supply of DC-DC system,
this device offers the systems engineer the
flexibility to tailor the power supply circuitry to a
specific application. Each channel contains its own
error amplifier, PWM comparator, dead–time
control and output driver. The under-voltage
protection, oscillator, short circuit protection and
voltage reference circuit are common for the two
channels.
Both channel of AAT1104/AAT1104A can be used
for DC/DC converter operations including step-up,
step-down, and inverting. Dead-time control (DTC)
can be set to provide 0% to 100% dead time by
resistive divider network. Soft start can be
implemented by paralleling the DTC resistor with a
capacitor. Two dead time control inputs are
assigned for Ch-1 and Ch-2 individually, and dead
time control inputs can be used to control on / off
operation.
With a minimum number of external components,
the AAT1104/AAT1104A offers a simple and cost
effective solution.
*Spec is subject to change without notice in this document.
––
Advanced Analog Technology, Inc.
V 1.0




AAT1104 pdf, 반도체, 판매, 대치품
Advanced Analog Technology, Inc.
AAT1104/AAT1104A
Electrical Characteristics, VDD = 5.0V (Unless Otherwise Specified) (See Note 1)
Oscillator
Parameter
Test Condition
Min Typ
Frequency
Frequency change with VDD
www.DataSheet4U.com
fOSC CT = 220pF, R T = 10k
fdV VDD = 4.0V to 6.0V,
TA = 25 oC
CT = 220pF, R T = 10k
320 400
1
Max Unit
480 KHz
%
Under-voltage Protection
Parameter
Upper threshold voltage
Lower threshold voltage
Hysteresis ( VUPH – VUPL )
VUPH
VUPL
VHYS
Test Condition
TA = 25 oC
TA = 25 oC
TA = 25 oC
Min Typ Max Unit
2.6 2.9 3.2 V
2.23 2.53 2.83 V
0.37 V
Short Circuit Protection Control
Parameter
Input threshold voltage
Vr1
Short-circuit detect threshold
voltage
Vr 2
SCP terminal source current
ISCP
Standy Voltage
Latch Voltage
VSTB
VLT
Test Condition
Ch-1, 2
AAT1104A only
AAT1104A only
AAT1104A only
Min Typ Max Unit
0.95 1.05 1.15
V
1.02 1.18 1.34
1.48 1.64 1.8
0.6 0.7 0.8
V
-1.5 -2.5 -3.5
µA
-10 -15 -20
50 100 mV
30 100 mV
Note1: Typical values of all parameters are specified at TA =25 oC.
––
Advanced Analog Technology, Inc.
V 1.0

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AAT1104 전자부품, 판매, 대치품
Advanced Analog Technology, Inc.
Function Block Diagram
AAT1104/AAT1104A
www.DataSheet4U.com
––
Advanced Analog Technology, Inc.
V 1.0

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