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AN8011S Datasheet(Fiches technique) 5 Page - Panasonic Semiconductor

Numéro de pièce AN8011S
Description  2-channel step-down, step-up, or inverting use DC-DC converter control IC
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Fabricant  PANASONIC [Panasonic Semiconductor]
Site Internet  http://www.panasonic.com/industrial/
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5
Voltage Regulators
AN8011S
Pin No.
Equivalent circuit
Description
I/O
1
CT:
O
The terminal used for connecting a timing
capacitor to set oscillator frequency. Use a
capacitance value within the range of 100 pF
to 0.1mF. For frequency setting method, re-
fer to the "Application Notes, [2] Function
descriptions" section. Use the oscillation fre-
quency in the range of 1 kHz to 500 kHz.
2
RT:
I
The terminal used for connecting a timing
resistor to set oscillattion frequency.
Use a resistance value ranging from 5.1 k
to 20 k
Ω.
The terminal voltage is 0.67 V typ.
3
On/Off:
I
The terminal for on/off control.
High-level input: normal operation
(VON/OFF > 2.0 V typ.)
Low-level input: standby state
(VON/OFF < 0.8 V typ.)
The total current consumption in the standby
state can be suppressed to a value below 5
µA.
4IN
−2:
I
The terminal for the inverted input of ch.2
error amplifier. Use a common-mode input
ranging from
− 0.1 V to 0.8 V.
s Terminal Equivalent Circuits
OSC
comp.
To PWM input
VREF
CT
IO
2IO
1
16
2
OSC
PWM
RT (
= 0.67 V)
VREF
16
17 k
Internal
circuit start/stop
13 k
3
On/Off
4
0.75 V
IN
−2
VREF
16




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