MAX5068 データシートの表示（PDF） - Maxim Integrated
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MAX5068
Maxim Integrated
MAX5068 Datasheet PDF : 20 Pages
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High-Frequency, Current-Mode PWM Controller
with Accurate Programmable Oscillator
Typical Operating Characteristics (continued)
(VIN = +12V for the MAX5068B/E/F; VIN = +23.6V for MAX5068A/C/D at startup, then reduces to +12V; CIN = CREG5 = 0.1µF;
CVCC = 1µF; RRT = 100kΩ; NDRV = floating; VFB = 0; VCOMP = floating; VCS = 0; TA = +25°C, unless otherwise noted.)
REG5 OUTPUT VOLTAGE vs. VIN
4.985
4.984 IREG5 = 100µA
4.983
4.982
4.981
4.980
4.979
4.978
4.977
4.976
4.975
10 12 14 16 18 20 22 24
VIN (V)
PROPAGATION DELAY FROM CS COMPARATOR
INPUT TO NDRV vs. TEMPERATURE
50
48
46
44
42
40
38
36
34
32
30
-40 -15 10
35 60
85 110
TEMPERATURE (°C)
CS TRIP THRESHOLD
vs. TEMPERATURE
330
327
324
321
318
315
312
309
306
303
300
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
INPUT CURRENT
vs. INPUT CLAMP VOLTAGE
14
12
10
8
6
4
2
0
10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5 30.0
INPUT CLAMP VOLTAGE (V)
SWITCHING FREQUENCY
vs. TEMPERATURE
520
fSW = 500kHz
515 +3σ
510
TOTAL NUMBER OF
DEVICES = 200
505 MEAN
500
-3σ
495
490
485
480
475
470
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
INPUT CLAMP VOLTAGE
vs. TEMPERATURE
27.0
26.8 ISINK = 2mA
26.6
26.4
26.2
26.0
25.8
25.6
25.4
25.2
25.0
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
NDRV OUTPUT IMPEDANCE
vs. TEMPERATURE
3.0
VIN = 24V
2.8 SINKING 100mA
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
NDRV OUTPUT IMPEDANCE
vs. TEMPERATURE
4.0
VIN = 24V
3.8 SOURCING 25mA
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
ERROR AMPLIFIER OPEN-LOOP GAIN
AND PHASE vs. FREQUENCY
120
30
100
0
80
GAIN
-30
60
-60
40
-90
PHASE
20
-120
0
-150
-20
-180
-40
0.1
-210
10
1k
100k 10M
FREQUENCY (Hz)
6 _______________________________________________________________________________________
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