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AN8016NSH Datasheet(Fiches technique) 6 Page - Panasonic Semiconductor

Numéro de pièce AN8016NSH
Description  Single-channel 1.8-volt step-up DC-DC converter control IC
Télécharger  17 Pages
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Fabricant  PANASONIC [Panasonic Semiconductor]
Site Internet  http://www.panasonic.com/industrial/
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AN8016NSH
Voltage Regulators
7
s Terminal Equivalent Circuits
Pin No.
Equivalent Circuit
Description
I/O
1IN
−:I
Error amplifier inverting input.
2
S.C.P.:
O
Connection for the capacitor that sets the
timer latch short-circuit protection circuit time
constant. Use a capacitor with a value of
1 000 pF or higher.
The charge current ICHG is 1.3 µA (typical).
However, the capacitor is charged with a time
constant determined by 0.23 V and a resistance
of 6 k
Ω until the pin voltage reaches 0.23 V.
3
SS:
I
Connection pin for the capacitor that determines
the PWM output soft start period. Note that the
the short-circuit protection circuit does not
supply charge current to S.C.P. pin until this pin
voltage reaches about 0.2 V.
The source current ISS is 5 µA (typical).
However, the capacitor is charged with a time
constant determined by 0.23 V and a resistor of
6 k
Ω until the pin voltage reaches 0.23 V.
4
Off:
I
This pin controls the on/off for the IC.
High-level input: normal operation
(VOFF > 1.3 V)
Low-level input: standby mode
(VOFF < 0.8 V)
In the standby state, the total IC current
consumption is decreased to 5
µA or under.
5
VCC:
Power supply connection.
Provide an operating supply voltage of 1.8 V
to 14 V.
300
VCC
1.26 V
1
Q
S
Latch
1.27 V
R
0.23 V
Low level detection comp.
To the
on/off
control
circuit
Output
cutoff
0.23 V
VCC
3 k
3 k
2
0.23 V
Unlatch comp.
0.23 V
VCC
CT PWM
3 k
3 k
S.C.P. pin
3
To the
on/off
control
circuit
30 k
60 k
4
Internal
circuit
start/stop
5




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