CS3865C
Absolute Maximum Ratings
Total Power Supply and Zener Current .........................................................................................................................50mA
Output Current, Source or Sink (Note 1)...........................................................................................................................1.0A
Output Energy (capacitive load per cycle) .......................................................................................................................5.0µJ
Current Sense, Enable and Voltage ......................................................................................................................-0.3 to +5.5V
Feedback Inputs
High State (Voltage)..........................................................................................................................................5.5V
Low State (Reverse Current) ......................................................................................................................-5.0mA
Error Amp Output Sink Current......................................................................................................................................10mA
Storage Temperature Range ................................................................................................................................-65 to +150°C
Operating Junction Temperature...................................................................................................................................+150°C
Operating Ambient Temperature.............................................................................................................................0 to +70°C
Lead Temperature Soldering
Wave Solder (through hole styles only) .................................................................................10 sec. max, 260°C peak
Reflow (SMD styles only) ..................................................................................60 sec. max above 183°C, 230°C peak
Electrical Characteristics:
V
CC
= 15V, R
T
= 8.2kΩ, C
T
= 3.3nF, for typical values T
A
=25˚C, for min/max values T
A
is the operating
ambient temperature range that applies [Note 3].
TEST CONDITIONS
MIN
PARAMETER
TYP
MAX
UNIT
s
Reference Section
Reference Output Voltage,
V
REF
Line Regulation
Load Regulation
Total Output Variation over
Line, Load and Temperature
Output Short Circuit Current
s
Oscillator and PWM Sections
Total Frequency Variation
over Line and Temperature
Frequency Change with
Voltage
Duty Cycle at each Output
Sync Input Current
11V≤V
CC
≤15V,
T
low
≤T
A
≤T
high
11V≤V
CC
≤15V
Maximum
High State V
IN
=2.4V
Low State V
IN
=0.8V
46.0
46.5
49.0
0.2
49.5
170
80
51.5
1.0
52.0
250
160
kHz
%
%
µA
I
OUT
=1.0mA, T
J
=25°C
11V≤V
CC
≤15V
1.0mA≤I
OUT
≤10mA
4.85
30
100
4.9
5.0
2.0
3.0
5.1
20.0
25.0
5.15
V
mV
mV
V
mA
s
Error Amplifiers
Voltage Feedback Input
Input Bias Current
Open-Loop Voltage Gain
Unity Gain Bandwidth
Output Current
Output Voltage Swing
V
OUT
=2.5V
V
FB
=5.0V
V
OUT
=2.0 to 4.0V
T
J
=25°C (note 6)
Source V
OUT
=3.0V, V
FB
=2.3V
Sink V
OUT
=1.2V, V
FB
=2.7V
High State, R
L
=15k to ground,
V
FB
=2.3V
Low State, R
L
=15k to V
REF
,
V
FB
= 2.7V
2
65
0.7
60
-0.45
2.00
5.0
2.42
2.50
-0.1
100
1.0
90
-1.00
12.00
6.2
0.8
1.1
2.58
-1.0
V
µA
dB
MHz
dB
mA
mA
V
Power Supply Rejection Ratio V
CC
=11V to 15V
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
