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UTCBA9741A Datasheet(PDF) 2 Page - Unisonic Technologies

Part # UTCBA9741A
Description  LINEAR INTEGRATED CIRCUIT
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UTCBA9741A Datasheet(HTML) 2 Page - Unisonic Technologies

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UTCBA9741A LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R103-019,A
PIN DESCRIPTIONS
PIN NO.
PIN NAME
FUNCTOIN
1
CT
External timing capacitor
2
RT
External timing resistor
3
NON1
Positive input for error amplifier 1
4
INV1
Negative input for error amplifier 1
5
FB1
Error amplifier 1 output
6
DT1
Output 1 dead time/soft start setting
7
OUT1
Output 1
8
GND
Ground
9
Vcc
Power supply
10
OUT2
Output 2
11
DT2
Output 2 dead time / soft start setting
12
FB2
Error amplifier 2 output
13
INV2
Negative input for error amplifier 2
14
NON2
Positive input for error amplifier 2
15
SCP
Time latch setting
16
VREF
Reference voltage output (2.5V)
BLOCK DIAGRAM
Vcc
2
1
9
Reference
Voltage
3
4
5
6
8
7
Triangle
Oscillator
16
14
13
12
15
11
10
VREF
Vref
+
-
+
-
+
-
+
+
-
+
+
-
+
NON 1
INV 1
FB 1
NON 2
INV 2
FB 2
SCP
Err
Amp 1
Err
Amp 2
Vref
SR
Timer
Latch
R
UVLO
SCP Comp
Vref
Vref
DT1 DT2
GND
PWM Comp2
PWM Comp1
CT
RT
OUT1
OUT2


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