Advanced Analog Technology, Inc.
Wide Operating Frequency錛?/div>
10kHz to 800kHz
GENERAL DESCRIPTION
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鈥搕ime control (DTC), and
output driver. The under-voltage protection,
oscillator, short circuit protection and voltage
reference circuit are the common features of the two
channels.
Both channels of AAT1341 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 CH1 and
CH2 individually, and dead-time control inputs can
be used to control on / off operation.
With a minimal number of external components, the
AAT1341 offers a simple and cost effective
solution.
V
DD
Range
錛?/div>
4.0V to 14.0V
PIN CONFIGURATION
TO V W
P IE
C
t
R
t
N
E1
IE1
O
E1
D 1
TC
O T1
U
GD
N
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
EF
R
SC
P
N
E2
IE2
O
E2
D 2
TC
O T2
U
V
D
D
SO
P-16PA K G
CAE
鈥?/div>
鍙扮仯欏炴瘮縐戞妧鑲★拷½鏈夐檺鍏徃
鈥?/div>
鈥?/div>
Advanced Analog Technology, Inc
.
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