TC18C43MJA Просмотр технического описания (PDF) - TelCom Semiconductor Inc => Microchip
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TC18C43MJA Datasheet PDF : 7 Pages
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TC18C43
TC28C43
TC38C43
BiCMOS CURRENT MODE
PWM CONTROLLERS
BENCH TEST OPERATIONAL SIMULATION
10k
RT
Q1
1
CMPTR
8
VREF
2N2222
100k
4.7µF
OR EQUIV
5k
2
VFB
7
VIN
IRAMP
5k
3
6
1µF
ISENSE OUTPUT
4
5
RL = 1k, 1W
10k
RT/CT
GND
CT
VDD (15V)
GND
TYPICAL CHARACTERISTICS
Oscillator Frequency Changes
Start Current vs. Temperature
150
101
vs. Temperature
ISENSE to Out Delay
150
145 VIN = VSTART
140
VIN = 15V
140
100
135
MAX TYP
130
130
99
125
120
120
98
115
110
110
97
100
105
100
MIN TYP
96
90
–60–40 –20 0 20 40 60 80 100 120 140 –60 –40 –20 0 20 40 60 80 100120 140 –55 0
25 50 70 125
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
4-98
TELCOM SEMICONDUCTOR, INC.
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