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TC18C43 Datasheet(PDF) 6 Page - TelCom Semiconductor, Inc

Part # TC18C43
Description  BiCMOS CURRENT MODE PWM CONTROLLERS
PDF  7 Pages
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Manufacturer  TELCOM [TelCom Semiconductor, Inc]
Direct Link  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC18C43 Datasheet(HTML) 6 Page - TelCom Semiconductor, Inc

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4-98
TELCOM SEMICONDUCTOR, INC.
TC18C43
TC28C43
TC38C43
BiCMOS CURRENT MODE
PWM CONTROLLERS
TYPICAL CHARACTERISTICS
150
145
140
135
130
125
120
115
110
105
100
–40 –20 0
20 40 60 80 100 120 140
–60
MAX TYP
MIN TYP
TEMPERATURE (
°C)
VIN = VSTART
Start Current vs. Temperature
101
100
99
98
97
96
–60 –40 –20 0
20 40 60 80 100120 140
TEMPERATURE (
°C)
VIN = 15V
Oscillator Frequency Changes
vs. Temperature
150
140
130
120
110
100
–55
90
0
255070
125
TEMPERATURE (
°C)
ISENSE to Out Delay
IRAMP
10k
5k
10k
CT
100k
5k
Q1
RT
CMPTR
VFB
ISENSE
RT/CT
VREF
VIN
OUTPUT
GND
1
µF
RL = 1k, 1W
4.7
µF
VDD (15V)
GND
2N2222
OR EQUIV
1
2
3
4
8
7
6
5
BENCH TEST OPERATIONAL SIMULATION



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