Rainbow Electronics MAX5095A - Manual (Page 8)

MAX5094A/B/C/D/MAX5095A/B/C
High-Performance, Single-Ended, Current-Mode
PWM Controllers
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
CC
= 15V, T
A
= +25°C, unless otherwise noted.)
TIMING RESISTANCE
vs. OSCILLATOR FREQUENCY
MAX5094/95 toc12
FREQUENCY (Hz)
R
T
(k
Ω
)
1,000,000 100,000
1
10
100
1000
0.1
10,000 10,000,000
C T = 1nF
C T = 560pF
C T = 220pF
C T = 100pF
C T = 10nF
C T = 4.7nF
C
T
= 3.3nF
C T = 2.2nF
OUT IMPEDANCE vs. TEMPERATURE
(R DS_ON PMOS DRIVER)
MAX5094/95 toc13
TEMPERATURE ( °C)
R
DS_ON
(Ω
)
110 95 65 80 -10 5 20 35 50 -25
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
5.0
2.0
-40 125
I SOURCE = 100mA
0
2
1
5
4
3
6
7
9
8
10
OUT IMPEDANCE vs. TEMPERATURE
(R DS_ON NMOS DRIVER)
MAX5094/95 toc14
R
DS_ON
(Ω
)
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
I SINK = 200mA
0
20
10
50
40
30
60
70
90
80
100
PROPAGATION DELAY FROM CURRENT-LIMIT
COMPARATOR TO OUT vs. TEMPERATURE
MAX5094/95 toc15
PROPAGATION DELAY (ns)
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
ERROR-AMPLIFIER OPEN-LOOP GAIN
AND PHASE vs. FREQUENCY
MAX5094/95 toc16
FREQUENCY (Hz)
GAIN (dB)
1M 100k 1k 10k 10 100 1
0
20
40
60
80
100
120
140
-20
0.01 100M 10M
-165
-140
-115
-90
-65
-40
-15
10
-190
PHASE
GAIN
PHASE (DEGREES)
1.5
1.6
2.2
1.8
1.7
1.9
2.0
2.1
2.3
-40 -10 5 20 -25 35 50 95 80 110 65 125
COMP VOLTAGE LEVEL TO TURN
OFF DEVICE vs. TEMPERATURE
MAX5094/95 toc17
TEMPERATURE ( °C)
V
COMP
(V)
V CC = 15V
100
104
102
110
108
106
112
114
118
116
120
ADV_CLK RISING EDGE TO OUT RISING
EDGE TIME vs. TEMPERATURE
MAX5094/95 toc18
TIME (ns)
-40 -10 5 20 -25 35 50 95 80 110 65 125
TEMPERATURE ( °C)
MAX5095C
t = 20ns/div
ADV_CLK AND OUT WAVEFORMS
OUT
10V/div
ADV_CLK
5V/div
LOAD = 4.75k
Ω
MAX5094/95 toc19
V CC = 15V
MAX5095C