AAC242 Datasheet, PDF (3/8 Pages) List of Unclassifed Manufacturers – Current Mode PWM Contoller

Power Management AAC242/243
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, T=25C, Vcc=15V, R_T = 10KΩ, C_T = 3300pF.
PARAMETER
PARAMETERS
UNITS
REFERENCE SECTION
MIN.
TYP.
MAX.
Output Voltage
4.95
5.00
5.05
V
Line Regulation
6
15
mV
Load Regulation
3
25
mV
Temperature Stability
0.2
mV/°C
Total Output Variation
4.9
5.1
V
Long Term Stability
5
mV
Output Short Circuit Current
-30
-50
-60
mA
OSCILLATOR SECTION
Frequency Initial Accuracy
47
52
57
KHz
Frequency Change with Voltage
0.2
1
%
Frequency Change with Temp.
1
%
Oscillator Voltage Swing
1.65
V_pp
ERROR AMPLIFIER SECTION
Voltage Feedback Input
2.45
2.5
2.55
V
Input Bias Current
-1
µA
Open Loop Voltage Gain
90
dB
Unity Gain Bandwidth
10
MHz
Power Supply Rejection Ratio
70
dB
Output Current Sink
12
mA
Output Current Source
-1
mA
Output Voltage Swing High
6
V
Output Voltage Swing Low
0.8
V
PULSE WIDTH MODULATION SECTION
Maximum Duty Cycle
97
%
Minimum Duty Cycle
0.4
%
CURRENT SENSE SECTION
Voltage Gain
11.4
12.0
12.6
V
Maximum Input Signal
242
250
258
mV
Power Supply Rejection Ratio
70
dB
Input Bias Current
-10
µA
Time Delay to Output
300
nS
CONDITIONS
12V<V_cc<25V
0C to 130C
Line, Load, and Temperature
T_a=125°C for 1000 hours
Ta=25°C
12<Vcc<25V
T_low<T_a<T_high
V_out=2.5V
T_j=25°C
12V<V_cc<25V
Before drop out
© Copyright 2010- ASIC Advantage, Inc. – AADS00012 / R127B - Preliminary - October 2010 3 / 8