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TC28C43EPA Scheda tecnica(PDF) 2 Page - TelCom Semiconductor, Inc

Il numero della parte TC28C43EPA
Spiegazioni elettronici  BiCMOS CURRENT MODE PWM CONTROLLERS
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Produttore elettronici  TELCOM [TelCom Semiconductor, Inc]
Homepage  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC28C43EPA Scheda tecnica(HTML) 2 Page - TelCom Semiconductor, Inc

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4-94
TELCOM SEMICONDUCTOR, INC.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage ............................................................ 18V
Maximum Chip Temperature ................................... 150
°C
Storage Temperature ............................ – 65
°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300
°C
Package Thermal Resistance
CerDip RθJ-A ................................................ 150°C/W
CerDip RθJ-C .................................................. 55°C/W
PDIP RθJ-A ................................................... 125°C/W
PDIP RθJ-C ..................................................... 45°C/W
SOIC RθJ-A ................................................... 250°C/W
SOIC RθJ-C ..................................................... 75°C/W
Operating Temperature
18C4x ...................................... – 55C
° ≤ TA ≤ +125°C
28C4x ........................................ – 40C
° ≤ TA ≤ +85°C
38C4x ............................................. 0C
° ≤ TA ≤ +70°C
ELECTRICAL CHARACTERISTICS unless otherwise stated, these specifications apply over specific
temperature range. VIN = VDD = 15V; RT = 71 kΩ; CT = 150 pF.
TC18C43
TC28C43
TC38C43
Parameter
Test Conditions
Min
Typ
Max
Min
Typ
Max
Units
Reference Section
Output Voltage
TA = 25°C, IO = 1mA
4.9
5
5.1
4.90
5
5.10
V
Line Regulation
9.5V
≤ VIN ≤ 15V, IO = 1mA
±3
±10
±3
±10
mV
Load Regulation
1mA
≤ lO ≤ 11mA
±5
±15
±3
±10
mV
Temp Stability
(Note 1)
±0.25
±0.5
±0.25
±0.5
mV/
°C
Output Noise Voltage
10Hz
≤ f ≤ 10 kHz,TA = 25°C (Note 1)
100
100
µV(rms)
Long Term Stability
TA = 125°C, 1000 Hrs. (Note 1)
±0.5
±0.5
%
Output Short Circuit
-20
-50
-100
-30
-50
-100
mA
Oscillator Section
Initial Accuracy
TA = 25°C (Note 4)
90
100
110
93.8
100
106.5
kHz
Voltage Stability
9.5V
≤ VIN ≤ 15V
±0.2
±0.3
±0.2
±0.3
%
Temp Stability
TMIN ≤ TA ≤ TMAX (Note 1); Figure 2
±0.01 ±0.05
±0.01
±0.03
%/
°C
Clock Ramp Reset
RT/CT Pin at 4V
2.25
2.5
2.75
2.25
2.5
2.75
mA
Amplitude
RT/CT Pin Peak to Peak
2.45
2.65
2.85
2.45
2.65
2.85
V
Maximum Freq
Note 1
1
1
MHz
Error Amp Section
Input Offset Voltage
V(CMPTR) = 2.5V
±15
±50
±15
±50
mV
Input Bias Current
(Note 1)
±0.3
±2—
±0.3
±2nA
AVOL
2V
≤ VO ≤ 4V
70
90
70
90
dB
Gain Bandwidth Product
(Note 1)
650
750
650
750
kHz
PSRR
9.5V
≤ VIN ≤ 15V
80
100
80
100
dB
Output Sink Current
VFB = 2.7V, V(CMPTR) = 1.1V (Note 1)
1.2
1.5
1.5
1.7
mA
Output Source Current
VFB = 2.3V, V(CMPTR) = 5V (Note 1)
3
3.4
3.9
4.2
mA
VOUT High
VFB = 2.3V, RL = 10k to Ground
5.65
6
6.5
5.65
6
6.5
V
VOUT Low
VFB = 2.7V, RL = 10k to VREF
0.1
0.7
1.1
0.1
0.7
1.1
V
Rise Response
Note 1
5
7
5
7
µsec
Fall Response
Note 1
3
5
3
5
µsec
Current Sense Section
Gain Ratio
Notes 2 & 3
2.8
2.9
3.1
2.8
2.9
3.1
V/V
Maximum Input Signal
V(CMPTR) = 5V (Note 2)
0.85
0.95
1.05
0.85
0.95
1.05
V
PSRR
9.5V
≤ VIN ≤ 15V (Notes 1, 2 & 5)
70
80
70
80
dB
Input Bias Current
Note 1
±0.3
±2—
±0.3
±2nA
Delay to Output
V(ISENSE) = 1V (Note 1); Figure 3
140
160
140
150
nsec
TC18C43
TC28C43
TC38C43
BiCMOS CURRENT MODE
PWM CONTROLLERS


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