AN8018 Panasonic Semiconductor, AN8018 Datasheet - Page 6

• Manufacturer Part Number: AN8018
• Description: 1.8-volt 2-channel step-up/ step-down/ or inverting DC-DC converter control IC
• Manufacturer: Panasonic Semiconductor

AN8018SA
6
Pin No.
Output 2 block
RB terminal voltage
Short-circuit protection block
Comparator threshold voltage
On/off control block
Off terminal current
Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Electrical Characteristics at V
Terminal Equivalent Circuits
1
2
3
4
5
IN 1
IN 1
Parameter
4
V
100
CC
2 k
1
V
Equivalent circuit
CC
2
0.2 V
1.1 A
1.19 V R
V
CC
R
S
Latch
47 A
47 A
S
Latch
CC
Q
Symbol
OSC
V
I
Q
V
100
OFF
THL
5
B
2.4 V, C
Output
cut-off
PWM
3
REF
OSC:
The terminal used for connecting a timing capaci-
tor/resistor to set oscillation frequency.
Use a capacitance value within the range of 100 pF
to 10 000 pF and a resistance value within the range
of 3 k to 30 k . Use an oscillation frequency in the
range of 20 kHz to 1 MHz. When operating the
circuit in parallel and synchronously, the channel 2
output stops when this pin becomes 0.9 V or more.
(Refer to the "Application Notes, [7]" section.)
S.C.P.:
The terminal for connecting a capacitor to set the
time constant of the timer latch short-circuit pro-
tection circuit. Use a capacitance value in the range
of 1 000 pF or more. The charge current I
1.1 A typical.
IN 1:
The noninverting input pin for error amplifier 1
block.
IN 1:
The inverting input pin for error amplifier 1 block.
FB1:
The output pin for error amplifier 1 block.
The source current is 47 A and the sink current
is 47 A.
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a capa-
citor between this terminal and GND.
Conditions
0.1 F, T
a
Description
25 C (continued)
Min
Voltage Regulators
0.36
1.19
Typ
23
CHG
Max
is
Unit
I/O
O
O
O
V
V
I
I
A