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PDF AAT1341 Data sheet ( Hoja de datos )
| Número de pieza | AAT1341 | |
| Descripción | 2-CHANNEL SWITCHING REGULATOR | |
| Fabricantes | Advanced Analog Technology | |
| Logotipo |  |
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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.
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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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Advanced Analog Technology, Inc.
AAT1341
ELECTRICAL CHARACTERTISTICS, VDD = 6.0V (UNLESS OTHERWISE
SPECIFIED) (SEE NOTE 1) (CONT.)
REFERENCE VOLTAGE
PARAMTER
Reference Voltage
Input Voltage Regulation
Output Regulation
SYMBOL
VREF
VRI
VRO
TEST CONDITION
IREF = −1mA ,
TC = 25 oC
IREF = −1mA ,
VDD = 4.0V to 14.0V
IREF = −0.1mA to
− 3.0 mA
MIN TYP MAX UNIT
2.4 2.5 2.6 V
- 1 5 mV
- 1 10 mV
EA (ERROR AMPLIFIER)
PARAMETER
SYMBOL
et4U.com
Input Offset Voltage
Input Bias Current
Input Voltage Range
Open-Loop Voltage
Gain
VIO
I IB
VIR
A VO
Output Voltage Swing
Output Sink Current
Output Source Current
VOS+
VOS−
I OS+
I OS−
Common-Mode
Rejection Ratio
CMRR
TEST CONDITION
CH1, CH2, Unity Gain
DCaHta1S, hCeHet24U.com
CH1, CH2
OE=1.25V
OE=1.25V
MIN
-
-
0.5
TYP MAX UNIT
- 6 mV
±15 ±100 nA
- 1.6 V
70 85 - dB
2.3 2.5 -
V
- 0.7 0.9
3 20 - mA
− 75 − 45 - µA
60 80 - dB
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– Advanced Analog Technology, Inc. –
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Advanced Analog Technology, Inc.
PACKAGE DIMENSION (CONT.)
AAT1341
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– Advanced Analog Technology, Inc. –
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| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet AAT1341.PDF ] | |
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