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參數(shù)資料
| 型號： | 5962-8768103EA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 676K |
| 代理商： | 5962-8768103EA |
2
The UC3825A,B has dual alternating outputs and the same
pin configuration of the UC3825. The UC3823A,B outputs op-
erate in phase with duty cycles from zero to less than 100%.
The pin configuration of the UC3823A,B is the same as the
UC3823 except pin 11 is now an output pin instead of the ref-
erence pin to the current limit comparator. “A” version parts
have UVLO thresholds identical to the original UC3823/25.
The “B” versions have UVLO thresholds of 16 and 10V, in-
tended for ease of use in off-line applications.
Consult Application Note U-128 for detailed technical and ap-
plications information. Contact the factory for further pack-
aging and availability information.
UC1823A,B/1825A,B
UC2823A,B/2825A,B
UC3823A,B/3825A,B
CONNECTION DIAGRAMS
Supply Voltage (VC, VCC) ....................................................22V
Output Current, Source or Sink (Pins OUTA, OUTB)
DC ..................................................................................0.5A
Pulse (0.5
s) ...................................................................2.2A
Power Ground (PGND) ......................................................
±0.2V
Analog Inputs
(INV, NI, RAMP)...................................................
0.3V to 7V
(ILIM, SS).............................................................
0.3V to 6V
Clock Output Current (CLK/LEB) .......................................
5mA
Error Amplifier Output Current (EAOUT)..............................5mA
Soft Start Sink Current (SS) ...............................................20mA
Oscillator Charging Current (RT)........................................
5mA
Power Dissipation at TA
= 60°C..............................................1W
Storage Temperature Range ............................
65°C to +150°C
Junction Temperature.......................................
55°C to +150°C
Lead Temperature (Soldering, 10 sec.) .............................300
°C
All currents are positive into, negative out of the specified terminal.
Consult Packaging Section of Databook for thermal limitations
and considerations of packages.
DIL-16, SOIC-16, (Top View)
J or N Package; DW Package
PLCC-20, LCC-20, (Top View)
Q, L Packages
Device
UVLO
DMAX
UC3823A
9.2V/8.4V
< 100%
UC3823B
16V/10V
< 100%
UC3825A
9.2V/8.4V
< 50%
UC3825B
16V/10V
< 50%
DESCRIPTION (cont.)
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for TA =
55°C to +125°C for the
UC1823A,B and UC1825A,B;
40°C to +85°C for the UC2823A,B and UC2825A,B; 0°C to +70°C for the UC3823A,B and
UC3825A,B; RT
= 3.65k, CT = 1nF, VCC = 12V, TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Reference Section
Output Voltage
TJ
= 25°C, Io = 1mA
5.05
5.1
5.15
V
Line Regulation
12
< VCC < 20V
2
15
mV
Load Regulation
1mA
< Io < 10mA
5
20
mV
Total Output Variation
Line, Load, Temp
5.03
5.17
V
Temperature Stability
TMIN
< TA < TMAX (Note 1)
0.2
0.4
mV/
°C
Output Noise Voltage
10Hz
< f < 10kHz (Note 1)
50
VRMS
Long Term Stability
TJ
= 125°C, 1000 hours (Note 1)
5
mV
Short Circuit Current
VREF
= 0V
30
60
90
mA
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