Rainbow Electronics MAX5095A - Manual (Page 7)

MAX5094A/B/C/D/MAX5095A/B/C
High-Performance, Single-Ended, Current-Mode
PWM Controllers
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(V
CC
= 15V, T
A
= +25°C, unless otherwise noted.)
4.90
4.94
4.92
5.00
4.98
4.96
5.02
5.04
5.06
5.08
REFERENCE VOLTAGE
vs. TEMPERATURE
MAX5094/95 toc04
V
REF
(V)
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
I REF = 1mA
I REF = 20mA
4.65
4.75
4.70
4.85
4.80
5.00
4.95
4.90
5.05
0 20 10 30 40 50 60 70
REFERENCE VOLTAGE
vs. REFERENCE LOAD CURRENT
MAX5094/95 toc05
I REF (mA)
V
REF
(V)
4.980
4.984
4.982
4.988
4.986
4.992
4.990
4.994
4.998
4.996
5.000
10 14 16 12 18 20 22 24 26
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX5094/95 toc06
V CC (V)
V
REF
(V)
I REF = 1mA
450
470
460
500
490
480
510
520
540
530
550
-40 -10 5 -25 20 35 50 65 80 95 110 125
OSCILLATOR FREQUENCY (f OSC )
vs. TEMPERATURE
MAX5094/95 toc07
TEMPERATURE ( °C)
OSCILLATOR FREQUENCY (kHz)
R T = 3.65k Ω
C T = 560pF
7.88
7.90
8.02
7.94
7.92
7.96
7.98
8.00
8.04
-40 -10 5 20 -25 35 50 95 80 110 65 125
OSCILLATOR R T /C T DISCHARGE CURRENT
vs. TEMPERATURE
MAX5094/95 toc08
TEMPERATURE ( °C)
R
T
/C
T
DISCHARGE CURRENT (mA)
V RT/CT = 2V
0
20
10
50
40
30
60
70
90
80
100
MAXIMUM DUTY CYCLE
vs. TEMPERATURE
MAX5094/95 toc09
DUTY CYCLE (%)
MAX5094A/MAX5094C/MAX5095A
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
MAX5094B/MAX5094D/MAX5095B/MAX5095C
R T = 5k Ω
C T = 560pF
0 1000 1500 500 2000 2500 3000 3500 4000
MAXIMUM DUTY CYCLE vs. FREQUENCY
MAX5094A/MAX5094C/MAX5095A
MAX5094/95 toc10
OSCILLATOR FREQUENCY (kHz)
C T = 100pF
C T = 220pF C T = 560pF
C T = 1000pF
0
20
10
50
40
30
60
70
90
80
100
DUTY CYCLE (%)
0.90
0.94
0.92
1.00
0.98
0.96
1.02
1.04
1.08
1.06
1.10
CURRENT-SENSE TRIP THRESHOLD
vs. TEMPERATURE
MAX5094/95 toc11a
CS THRESHOLD (V)
MAX5094A/MAX5094B
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
V FB = 0V
0.20
0.24
0.22
0.30
0.28
0.26
0.32
0.34
0.38
0.36
0.40
CURRENT-SENSE TRIP THRESHOLD
vs. TEMPERATURE
MAX5094/95 toc11b
CS THRESHOLD (V)
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
MAX5094C/D: V FB = 0V
MAX5095_: V COMP = 5V