MAX5069 Maxim Integrated, MAX5069 Datasheet - Page 7

• Manufacturer Part Number: MAX5069
• Description: High-Frequency / Current-Mode PWM Controller with Accurate Oscillator and Dual FET Drivers
• Manufacturer: Maxim Integrated

(V
R
RT
IN
63.0
62.9
62.8
62.7
62.6
62.5
62.4
62.3
62.2
62.1
62.0
High-Frequency, Current-Mode PWM Controller
= 100kΩ, NDRV_ = floating, V
52.0
51.6
51.2
50.8
50.4
50.0
49.6
49.2
48.8
48.4
48.0
with Accurate Oscillator and Dual FET Drivers
= +23.6V for MAX5069A/B at startup, then reduces to +12V, V
-40
-40
FLTINT CURRENT vs. TEMPERATURE
f
SW
-15
NDRV SWITCHING FREQUENCY
-15
= 50kHz
70
65
60
55
50
45
40
vs. TEMPERATURE
10
10
TEMPERATURE ( ° C)
-40
TEMPERATURE (°C)
V
R
R
_______________________________________________________________________________________
IN
DT
RT
35
35
DEAD TIME vs. TEMPERATURE
= 24V
= 100kΩ
-15
= 24.9kΩ
60
60
10
TEMPERATURE (°C)
85
FB
85
35
= 0V, V
110
110
60
COMP
85
110
13.0
12.5
12.0
11.5
11.0
10.5
10.0
Typical Operating Characteristics (continued)
505
504
503
502
501
500
499
498
497
496
495
= floating, V
9.5
9.0
8.5
8.0
-40
-50
V
SINKING 50mA
f
f
SW
SW
IN
NDRV SWITCHING FREQUENCY
= 500kHz
= 500kHz
= 24V
-25
HYST R
-15
CS
vs. TEMPERATURE
0
10
TEMPERATURE (°C)
TEMPERATURE ( ° C)
ON
= 0V, T
IN
vs. TEMPERATURE
25
= +12V for the MAX5069C/D, C
35
A
50
60
= +25°C, unless otherwise noted.)
75
85
100
110
200
180
160
140
120
100
80
60
40
20
0
125
1
1.35
1.20
1.15
0.01
1.40
1.30
1.25
1.10
0.1
DEAD TIME vs. R
2
1
0.03
-40
IN
NDRVA SWITCHING FREQUENCY (f
f
SW
R
= C
DT
NDRV SWITCHING FREQUENCY
-15
= 1.25MHz
10
(kΩ)
REG5
0.1
vs. TEMPERATURE
10
TEMPERATURE (°C)
DT
= 0.1µF, C
vs. R
R
35
RT
(MΩ)
RT
60
100
VCC
85
= 1µF,
1
110
SW)
2
7