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參數(shù)資料
| 型號(hào)： | TC33025VOETR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 416K |
| 代理商： | TC33025VOETR |
TC33025
2
TC33025-1 5/25/00
High Speed Double Ended Controller
ABSOLUTE MAXIMUM RATINGS*
Power Supply Voltage ..................................... VCC = 30V
Output Driver Supply Voltage ............................. VC = 20V
Output Current, Source or Sink (Note 1)
DC ............................................................ IOUT = 0.5A
Pulsed (0.5
sec)....................................... IOUT = 2.0A
Current Sense, Soft–Start Ramp and
Error Amp Inputs .................................. VIN = –0.3 to 7.0V
Error Amp Output and Soft–Start Sink CurrentIOUT = 10mA
Storage Temperature Range ................. –65
°C to +150°C
Clock and RT Output Current ..................... ICOUT= 5.0mA
Power Dissipation and Thermal Characteristics
16-Pin SOIC
Maximum Power Dissipation
@ TA = +25°C ........................................ PD = 862mW
Thermal Resistance, Junction–to–Air ...
θJA = 145C/W
16-Pin PDIP
Maximum Power Dissipation
@ TA = +25°C .......................................... PD = 1.25W
Thermal Resistance, Junction–to–Air ...
θJA = 100C/W
Operating Junction Temperature .................. TJ = +150°C
Operating Ambient Temperature (Note 2)
TC33025 ...................................... TA = –40 to +105°C
Storage Temperature Range ....... TSTG = –55 to +150 °C
*Static sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above thise listed under Absolute Maximum Power Ratings may cause
permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond
those indicated in the operation section of the specifications is not implied.
Exposure to absolute maximum ratings conditions for extended periods of
time may affect device reliability.
ELECTRICAL CHARACTERISTICS: VCC = 15V, RT = 3.65k, CT = 1.0nF, for typical values TA = +25°C, for
min/max values. TA is the operating ambient temperature range that applies [Note 2], unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
Reference Section
VREF
Reference Output Voltage
IOUT = 1.0mA, TJ = +25°C
5.05
5.1
5.15
V
REGLINE
Line Regulation
VCC = 10V to 30V
–
2.0
15
mV
REGLOAD
Load Regulation
IOUT = 1.0mA to 10mA
–
2.0
15
mV
TS
Temperature Stability
–
0.2
–
mV/
°C
VREF
Total Output Variation Over
Line, Load, and Temperature
4.95
–
5.25
V
VN
Output Noise Voltage
f = 10Hz to 10kHz, TJ = +25°C
–
50
–
V
S
Long Term Stability
TA = +125°C for 1000 Hours
–
5.0
–
mV
ISC
Output Short Circuit Current
–30
–65
–100
mA
Oscillator Section
fOSC
Frequency
TJ = +25°C
380
400
420
kHz
Line (VCC = 10V to 30V) and
Temperature (TA = TLOW to THIGH)
370
400
430
kHz
fOSC/V
Frequency Change with Voltage
VCC = 10V to 30V
–
0.2
1.0
%
fOSC/T
Frequency Change with Temperature TA = TLOW to THIGH
–
2.0
–
%
VP
Sawtooth Peak Voltage
2.6
2.8
3.0
V
VV
Sawtooth Valley Voltage
0.7
1.0
1.25
V
VOH
Clock Output Voltage High State
3.9
4.5
–
V
VOL
Low State
–
2.3
2.9
V
Notes:
1. Maximum package power dissipation limits must be observed.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
TLOW = – 40°C for TC33025
THIGH = +105°C for TC33025
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