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AAT1341 Schematic ( PDF Datasheet ) - Advanced Analog Technology

Teilenummer AAT1341
Beschreibung 2-CHANNEL SWITCHING REGULATOR
Hersteller Advanced Analog Technology
Logo Advanced Analog Technology Logo 




Gesamt 16 Seiten
AAT1341 Datasheet, Funktion
www.DataSheet4U.com
Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1341
2-CHANNEL SWITCHING REGULATOR
FEATURES
GENERAL DESCRIPTION
z Complete PWM Power Control Circuitry
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
The AAT1341 provides an integrated two-channel
pulse-width-modulation (PWM) solution for the
power supply of DC-DC system; this device offers
system engineers the 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,
10kHz to 800kHz
z VDD Range 4.0V to 14.0V
PIN CONFIGURATION
oscillator, short circuit protection and voltage
reference circuit are the common features of the two
channels.
DataSheet4U.com
Both channels
of
AAT1341
can
be
used
for
DC-DC
DataShee
converter operations including step-up, step-down,
TOP VIEW
Ct 1
16 VREF
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
Rt 2
NE1 3
IE1 4
15 SCP
14 NE2
13 IE2
paralleling the DTC resistor with a capacitor. Two
dead-time control inputs are assigned for CH1 and
CH2 individually, and dead-time control inputs can
be used to control on / off operation.
OE1 5
12 OE2
With a minimal number of external components, the
DTC1 6
OUT1 7
11 DTC2
10 OUT2
AAT1341 offers a simple and cost effective
solution.
GND 8
9 VDD
SOP-16PACKAGE
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Advanced Analog Technology, Inc.
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AAT1341 Datasheet, Funktion
www.DataSheet4U.com
Advanced Analog Technology, Inc.
ELECTRICAL CHARACTERISTICS, VDD = 6.0V
(UNLESS OTHERWISE SPECIFIED) (SEE NOTE 1) (CONT.)
AAT1341
DEAD-TIME CONTROL & PWM
PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT
Input Bias Current
IIB VDTC = 2.0V
- 0.1 1.0 µA
Input Threshold
Voltage (DTC)
Vd0
Vd100
Duty = 0%, fOSC = 10kHz 1.79 1.97 2.15
Duty = 100%, fOSC = 10kHz 1.32 1.48 1.64
V
Latch Input Voltage
Latch Mode Source
Current
VDTC
I DTC
IDTC = 40µA
DTC1, DTC2=0V
2.28 2.48
560 200
-
-
V
µA
OUTPUT STAGE
PARAMETER
Saturation Voltage
Leakage Current
et4U.com
OPERATING CURRENT
PARAMETER
Supply Current
SYMBOL
VSAT
I LEAK
I DDOFF
I DDON
TEST CONDITION
IO = 75mA CH1, CH2
VO =14.0V
DataSheet4U.com
TEST CONDITION
Output “OFF” State
R OSC = 10k
MIN
-
-
MIN
-
-
TYP MAX UNIT
0.8 1.2 V
- 5.0 µA
TYP MAX UNIT
1.3 1.8 mA
1.6 2.3 mA
DataShee
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––
Advanced Analog Technology, Inc.
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AAT1341 pdf, datenblatt
www.DataSheet4U.com
Advanced Analog Technology, Inc.
PACKAGE DIMENSION (CONT.)
AAT1341
et4U.com
SYMBOLS
A
A1
A2
b
C
D
E
E1
e
L
y
θ
DIMENSIONS IN MILLIMETERS
MIN TYP MAX
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
------
0o
------
0.076
-----D-ataSheet48Uo.com
DEMINSIONS IN INCHES
MIN TYP MAX
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
------
0o
-----
------
0.003
8o
DataShee
NOTE:
1. CONTROLLING DIMENSION: INCH
2. LEAD FRAME MATERIAL: COPPER 194
3. DIMENSION “D” DOES NOT INCLUDE MOLD FLASH, TIE BAR BURRS AND GATE BURRS. MOLD FLASH, TIE
BAR BURRS AND GATE BURRS SHALL NOT EXCEED 0.006” [0.15 MILLIMETERS] PER END DIMENSION “E1” DOES
NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SAHLL NOT EXCEED 0.010” [0.25 MILLIMETERS] PER
SIDE.
4. DIMENSION “b” DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE
0.003” [0.08 MILLIMETERS] TOTAL IN EXCESS OF THE “b” DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN
PROTRUSION AND AN ADJACENT LEAD TO BE 0.0028” [0.07 MILLIMETERS].
5. TOLERANCE: ± 0.010” [0.25 MILLIMETERS] UNLESS OTHERWISE SPECIFIED.
6. OTHERWISE DIMENSION FOLLOW ACCEPTABLE SPEC.
7. REFERENCE DOCUMENT: JEDEC SPEC MS-012
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––
Advanced Analog Technology, Inc.
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