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AN8013SH Datasheet(Fiches technique) 5 Page - Panasonic Semiconductor

Numéro de pièce AN8013SH
Description  Single-channel step-up or step-down DC-DC converter control IC
Télécharger  15 Pages
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Fabricant  PANASONIC [Panasonic Semiconductor]
Site Internet  http://www.panasonic.com/industrial/
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Voltage Regulators
AN8013SH
5
s Terminal Equivalent Circuits (continued)
Pin No.
Pin
I/O
Function
Internal equivalent circuit
4
S.C.P.
O
Connection for the capacitor that determines
the time constant for soft start and the timer
latch short-circuit protection circuit.
Use a capacitor with a value of 1 000 pF or
higher.
The charge current ICHG is determined by the
timing resistor RT, and sample-to-sample and
temperature variations can be suppressed.
When RT is 15 kΩ, the current will be about
−1.3 µA.
ICHG =
VRT × 1 [A]
RT
30
5
DTC
I
Connection for the resistor and capacitor that
determine the PWM output dead-time and the
soft start period.
The input current IDTC is determined by the
timing resistor RT, and sample-to-sample and
temperature variations can be suppressed.
When RT is 15 kΩ, the current will be about
−11 µA.
ICHG =
VRT × 1 [A]
RT
3.6
6
FB
O
Error amplifier output
A source current is about
−120 mA and a sink
current is about 8 mA.
Correct the gain and the phase frequency
characteristics by inserting a resistor and a
capacitor between this pin and IN
−pin.
7IN
I
Error amplifier inverting input
For common-mode input, use in the range
− 0.1 V to +0.8 V.
8
GND
Ground
S
R
Q
Latch
0.75 V
V
REF
I
CHG
U.V.L.O.
4
PWM
CT
U.V.L.O.
V
REF
I
DTC
5
PWM
C
T
120
µA
8 mA
V
REF
6
V
REF
0.75 V
7
8




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Numéro de composants électroniques

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