TC28C43EOE TELCOM [TelCom Semiconductor, Inc], TC28C43EOE Datasheet - Page 6

• Manufacturer Part Number: TC28C43EOE
• Description: BiCMOS CURRENT MODE PWM CONTROLLERS
• Manufacturer: TELCOM [TelCom Semiconductor, Inc]

TYPICAL CHARACTERISTICS
TC18C43
TC28C43
TC38C43
4-98
145
140
135
130
125
120
115
110
105
100
150
–60
10k
10k
Start Current vs. Temperature
5k
–40 –20 0 20 40 60 80 100 120 140
V IN = V START
MAX TYP
TEMPERATURE ( C)
5k
Q1
MIN TYP
2N2222
OR EQUIV
I RAMP
R T
C T
100k
BENCH TEST OPERATIONAL SIMULATION
101
100
99
98
97
96
–60 –40 –20 0 20 40 60 80 100120 140
Oscillator Frequency Changes
1
2
3
4
CMPTR
V FB
I SENSE
R T /C T
vs. Temperature
TEMPERATURE ( C)
OUTPUT
V REF
V IN = 15V
GND
V IN
8
7
6
5
4.7 F
BiCMOS CURRENT MODE
150
140
130
120
110
100
90
1 F
–55
TELCOM SEMICONDUCTOR, INC.
R L = 1k, 1W
PWM CONTROLLERS
I SENSE to Out Delay
0
TEMPERATURE ( C)
25
50
V DD (15V)
GND
70
125