AAC242 Datasheet, PDF (2/8 Pages) List of Unclassifed Manufacturers – Current Mode PWM Contoller

Power Management AAC242/243
BLOCK DIAGRAM
8 Vcc
5 GND
4 Rt/Ct
2 Vf b
1 COMP
3 Isense
34V
OSC
UVLO
5V
REF
2.5V
5.00VREF
REF
OK
Error
Amp
+
-
1₂1_RR
R
1V
S
-
RQ
+
Current Sense
Comparator
DVR
Vref 7
OUTPUT 6
Open Loop Test Circuit
4.7K
1K
4.7K
2N3904
Rt
100K
5K
Ct
1 _COMP
2
FB
3 _Isense
4
R/C
Vref ⁸
7
Vcc
OUT ⁶
5
GND
A
0.1uF
1K/1W
0.1uF
V+
OUTPUT
MAXIMUM RATINGS
PARAMETER
Supply Voltage (V_cc – Ground)
V_fb and I_sense Amp Inputs
Output Current
Power Dissipation
Operating Junction Temperature
Operating Ambient Temperature
Operating Ambient Temperature
Storage Temperature Range
Lead Temperature (10 Second)
PARAMETERS
MIN.
0
-0.3
MAX.
30
5.5
±1
1200
1000
150
-40
105
-40
125
-65
150
300
UNITS
CONDITIONS
V
Low impedance source
V
A
mW
DIP
mW
SOIC8
°C
°C
Extended industrial temp. rated
devices
°C
Automotive temp. rated devices
°C
°C
Soldering
© Copyright 2010- ASIC Advantage, Inc. – AADS00012 / R127B - Preliminary - October 2010 2 / 8