an8041s Panasonic Corporation of North America, an8041s Datasheet - Page 5

• Manufacturer Part Number: an8041s
• Description: Liquid Crystal Backlight Control Ic
• Manufacturer: Panasonic Corporation of North America

Voltage Regulators
Pin No.
Terminal Equivalent Circuits (continued)
4
5
6
7
8
9
V
To U.V.L.O.
V
REF
REF
V
V
7
V
RT
REF
REF
I
REF
CHG
Equivalent circuit
C
DTC
5
0.75 V
Source current
Sink current
Source current
Sink current
4
R
R
8
9
S
Latch
DTC
PWM
comparator
I
DTC
Q
6
input
DTC:
The terminal for connecting a resistor and ca-
pacitor to set the dead-time and soft start period
of PWM output. Input current I
by the timing resistor R
fluctuation with temperature are suppressed. It
is approx. 12.3 A when R
S.C.P.:
The terminal for connecting a capacitor to set the
time constant of soft start and timer latch short-
circuit protection circuit.
Use a capacitance value in the range of more than
1 000 pF.
The charge current I
timing resistor R
tuation with temperature are suppressed. It is
approx. 1.3 A when R
IN 1:
The noninverted input terminal of the error am-
plifier 1.
For common-mode input, use in the range of
IN 1:
The inverted input terminal of the error ampli-
fier 1.
For common-mode input, use in the range of
FB1:
The output terminal of the error amplifier 1.
Source current : approx. 120 A
Sink current : approx. 8 mA
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a ca-
pacitor between this terminal and IN 1 terminal.
FB2:
The output terminal of the error amplifier 2.
Source current : approx. 120 A
Sink current : approx. 8 mA
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a ca-
pacitor between this terminal and IN 2 terminal.
0.1 V to 0.8 V.
0.1 V to 0.8 V.
I
I
DTC
CHG
V
V
R
R
RT
RT
T
T
T
Description
11
1
2
1
, so that dispersion and fluc-
[A]
[A]
CHG
T
, so that dispersion and
T
is determined by the
T
15 k .
DTC
15 k .
is determined
AN8041S
I/O
O
O
I
I
5