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AN8018SA Datasheet(Fiches technique) 2 Page - Panasonic Semiconductor

Numéro de pièce AN8018SA
Description  1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC
Télécharger  26 Pages
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Fabricant  PANASONIC [Panasonic Semiconductor]
Site Internet  http://www.panasonic.com/industrial/
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2
AN8018SA
Voltage Regulators
s Block Diagram
s Pin Descriptions
Pin No. Symbol
Description
1
OSC
Pin for oscillation timing resistor
and capacitor connection
2
S.C.P.
Pin for connecting the time constant set-
ting capacitor for short-circuit protection
3IN
+1
Error amplifier 1 block noninverting
input pin
4IN
−1
Error amplifier 1 block inverting input pin
5
FB1
Output pin of error amplifier 1 block
6
DT1
PWM1 block dead-time setting pin
7
Out1
Out1 block open-collector type
output pin
Pin No. Symbol
Description
8
GND
Grounding pin
9VCC
Power supply voltage application pin
10
Out2
Out2 block push-pull type output pin
11
RB2
Out2 block output source current
setting resistor connection pin
12
DT2
PWM2 block dead-time setting pin
13
FB2
Output pin of error amplifier 2 block
14
IN
+2
Error amplifier 2 block inverting input
pin
15
Off
On/off control pin
16
VREF
Reference voltage output pin
Out1
7
GND
8
On/
off
15
IN
+2
14
FB2
13
1.19 V
H
L
FB1
5
IN
−1 4
U.V.L.O.
S.C.P.
comp.
VREF
Unlatch2
Unlatch1
Q
R
S
Latch
Reference
voltage source
VREF
On/off
control
1.19 V
0.9 V
0.9 V
PWM1
0.9 V
IN
+1
3
0.22 V
0.2 V
0.9 V
VREF
VCC
VREF
RB2
11
Out2
10
PWM2
Triangular wave
oscillation
Error amp. 1
Error amp. 2




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