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AN8011S Datasheet(Fiches technique) 6 Page - Panasonic Semiconductor

Numéro de pièce AN8011S
Description  2-channel step-down, step-up, or inverting use DC-DC converter control IC
Télécharger  16 Pages
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Fabricant  PANASONIC [Panasonic Semiconductor]
Site Internet  http://www.panasonic.com/industrial/
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AN8011S Datasheet(HTML) 6 Page - Panasonic Semiconductor

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6
AN8011S
Voltage Regulators
Pin No.
Equivalent circuit
Description
I/O
5
FB2:
O
The output terminal of ch.2 error amplifier.
Its source current is
−25 µA typ. and sink
current is 8 mA typ.
Correct the frequency characteristics of the
gain and the phase by connecting a resistor
and a capacitor between the terminal and
IN
−2 terminal.
6
DTC2:
I
1) Terminal for connecting a resistor and a
capacitor for setting the dead-time and the
soft start period of ch.2 PWM output.
Input current IDTC is determined by the tim-
ing resistor RT so that dispersion, and fluc-
tuation with temperature are suppressed. The
input current is
−35 µA typ.
when RT = 20 kΩ
IDTC2 =
VRT × 1.04 (A)
RT
(VRT: 0.67 V typ.)
2) The ch.2 output can be turned off by reduc-
ing the terminal voltage to below 0.12 V.
(short-circuit protection function stop)
7
Out2:
O
The ch.2 open-collector type (Darlington)
output terminal.
The absolute maximum rating of ouput cur-
rent is 150 mA.
Use with an output current under 100 mA
normally.
8
GND:
GND pin
9VCC:
The pin to which supply voltage is applied.
Use within an operating supply voltage range
of 3.6 V to 34 V.
s Terminal Equivalent Circuits (continued)
5 FB2
PWM2
CT
VREF 16
25
µA typ.
8 mA
typ.
6 DTC2
PWM2
CT
VREF 16
IDTC2
U.V.L.O.
output
VREF 16
7
Out2
8
GND
9
VCC


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