UC3853N UNITRODE, UC3853N Datasheet - Page 3
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UC3853N
Manufacturer Part Number
UC3853N
Description
IC, POWER FACTOR PREREG, 3853, DIP8
Manufacturer
UNITRODE
Datasheet
1.UC3853N.pdf
(10 pages)
Specifications of UC3853N
Primary Input Voltage
40V
No. Of Outputs
1
Output Voltage
17.5V
Voltage Regulator Case Style
DIP
No. Of Pins
8
Operating Temperature Range
0°C To +70°C
Operating Temperature Max
70°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UC3853N
Manufacturer:
UNIT
Quantity:
5 510
Company:
Part Number:
UC3853N
Manufacturer:
MOT
Quantity:
5 510
Part Number:
UC3853N
Manufacturer:
TI/德州仪器
Quantity:
20 000
(continued)
Note 1:
Note 2:
Note 3.
Synchronization is accomplished with a falling edge of 2V mag-
nitude and 100V/ sec slew rate.
ELECTRICAL CHARACTERISTICS
Multiplier Section
Oscillator Section
Output Driver Section
OVP Comparator Section
Output Current – IAC Limited
Output Current – Zero
Output Current – Power Limited
Output Current
Multiplier Gain Constant
Oscillator Initial Frequency
Oscillator Frequency
Synchronization Frequency Range
Synchronization Pulse Amplitude
Maximum Output Voltage
Output High
Output Low (Device Inactive)
Output Low (Device Active)
OUT Rise Time
OUT Fall Time
OUT Maximum Duty Cycle
Threshold Voltage
Hysteresis
PARAMETER
ICOMP
, VCC = 12V.
Unless otherwise stated, these parameters apply for T
UC1853; –25°C to +85°C for the 2853; and 0°C to +70°C for the UC3853; VCC =
16V, V
VCC = 11V, V
IAC = 0 A
VCC = 12V, V
VCC= 12V, V
VCC= 12V, V
VCC= 40V, V
VCC= 40V, V
VCC= 12V, V
T
Line, Load, Temperature
Pulse slew rate = 100V/
0mA load, VCC = 20V
0mA load, VCC = 12V, ref. to VCC
–50mA load, VCC = 12V, ref. to VCC
Vcc = 0V, 20mA load (Sinking)
50mA load (Sinking)
1nF from OUT to GND
1nF from OUT to GND
V
Volts Above EA Input V
A
ICOMP
= 25°C
FB
= 0V
= 3V, I
VCOMP
VCOMP
VCOMP
VCOMP
VCOMP
VCOMP
VCOMP
TEST CONDITIONS
AC
3
= 100
= 2V
= 5V
= 2V
= 5V
= 5.5V (Note 2)
= 6V
= 5.5V
m
m
sec (Note 3)
A, V
VCOMP
= 3.75V, V
ICOMP
–1.05
–230
–236
MIN
67.5
–2.7
–2
56
12
–3
88
90
A
= 3V, T
= –55°C to +125°C for the
–200
–178
–156
TYP
–0.2
–0.9
–1.7
–2.2
150
–22
–14
0.9
0.5
–2
75
75
15
55
35
93
80
A
2
= T
J
.
–0.75
MAX UNITS
–170
–168
82.5
17.5
100
100
100
2.0
94
2
1
UC1853
UC2853
UC3853
V
kHz
kHz
kHz
mV
mV
ns
ns
%
V
V
V
V
V
V
A
A
A
A
A
A
A
–1