MAX15001 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX15001 Datasheet PDF : 18 Pages
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Current-Mode PWM Controllers with
Programmable Switching Frequency
Typical Operating Characteristics (continued)
(VUVLO/EN = +1.4V, VFB = +1V, COMP = open, VCS = 0V, TA = +25°C, unless otherwise noted.)
SWITCHING FREQUENCY
vs. TIMING RESISTOR
1000
MAX15000A
PROPAGATION DELAY FROM
CURRENT-LIMIT COMPARATOR
INPUT TO NDRV vs. TEMPERATURE
60
55
UVLO/EN TO NDRV PROPAGATION DELAY
vs. TEMPERATURE
6
5
UVLO/EN RISING
4
100
50
3
2
45
1 206µs
UVLO/EN FALLING
10
1
10
100
1000
TIMING RESISTOR (kΩ)
UVLO/EN TO UFLG PROPAGATION DELAY
vs. TEMPERATURE
6
5
4
UVLO/EN RISING
3
2
UVLO/EN FALLING
1
40
-40 -15
10
35
60
85
TEMPERATURE (°C)
REFERENCE VOLTAGE
vs. TEMPERATURE
1.232
VIN = 12V
1.231
1.230
1.229
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
INPUT CURRENT
vs. IN VOLTAGE
1.80
UVLO/EN = 1.4V
NDRV SWITCHING AT 350kHz
1.76
1.72
1.68
1.64
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
1.228
-40 -15
10
35
60
85
TEMPERATURE (°C)
1.60
10 11 12 13 14 15 16 17 18 19
IN VOLTAGE (V)
INPUT CLAMP VOLTAGE
vs. TEMPERATURE
27.0
26.8 IIN = 2mA
26.6
26.4
26.2
26.0
25.8
25.6
25.4
25.2
25.0
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
NDRV LOW OUTPUT IMPEDANCE
vs. TEMPERATURE
2.4
VIN = 24V
SINKING 100mA
2.2
2.0
1.8
1.6
1.4
1.2
-40 -15
10
35
60
85
TEMPERATURE (°C)
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