AA18375AP Agamem Microelectronic, AA18375AP Datasheet - Page 2

• Manufacturer Part Number: AA18375AP
• Description: Switching Regulator Controller
• Manufacturer: Agamem Microelectronic

PRELIMINARY
■PIN DESCRIPTIONS
■ BLOCK DIAGRAM
©Copyright Agamem Microelectronics Inc.
Pin No. Symbol I/O
+IN2
SCP
-IN2
+IN1
V
-IN1
FB1
FB2
1
2
3
4
5
6
7
8
REF
16
12
14
13
15
3
4
5
D.T.C.1
OUT1
+IN1
GND
Error Amp 1
Error Amp 2
-IN1
FB1
1.28V
C
R
+
T
T
-
+
-
Voltage Supply
—
—
— Ground pin
O
O
Reference
I
I
I
V
9
Pin for oscillation capacitor
connection
Pin for oscillation timing resistor
connection
Error amplifier 1 block
non-inverting input pin
Error amplifier 1 block inverting
input pin
Output pin of error amplifier 1
block
PWM1 block dead-time setting
pin
Output1 block push-pull type
output pin
cc
2.5V
Agamem Microelectronics Inc.
GND
8
1.1V
+
_ +
Description
1.3V
S.C.P.Comp
1.9V
Latch
D.T.C. Comp
Pin No. Symbol
10
11
12
13
14
15
16
9
U.V.L.O
2
R
PWM Comp 2
D.T.C.2
2.5V
PWM Comp 1
OUT2
+IN2
-IN2
V
+
_ +
SCP
V
FB2
+ _
_
+ _
_
REF
CC
1.8V
Triangular wave
C
1
Oscillator
I/O
T
—
O
O
O
I
I
I
I
AA18375AP
Switching Regulator Controller
IC power supply pin
Output2 block push-pull type output pin
PWM2 block dead-time setting pin
Error amplifier 2 block non-inverting
input pin
Soft start and short circuit protection
setting capacitor connection pin
Reference voltage output pin
Output pin of error amplifier 2 block
Error amplifier 2 block inverting input pin
www.agamem.com.tw
R
2
T
OUTPUT 1
1.28V
OUTPUT 2
D.T.C. 1 D.T.C. 2
6
Description
0.9V
11
0.9V
10
2006/6/27
7