MAX5059 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX5059 Datasheet PDF : 25 Pages
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Parallelable Secondary-Side Synchronous Rectifier
Driver and Feedback-Generator Controller ICs
Typical Operating Characteristics (continued)
(V+ = +12V, GND = PGND = 0, VDR = VREG, CQSYNC = CQREC = 0, ZCP = ZCN = BUFIN = CSP = CSN = SFN = VSN = GND, VIREF =
VVSP = 1.785V, VCOMPS = 0.5V, CVREG = 2.2µF, CVP = 1µF, CCOMPS = 0.1µF, CSFP = 68nF, TA = +25°C, unless otherwise noted.)
SWITCHING SUPPLY CURRENT
vs. TEMPERATURE (MAX5059)
6.0
5.8
fSW = 250kHz
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
REMOTE-SENSE AMPLIFIER (RSA) GAIN
vs. TEMPERATURE
0.015
0.014 VVSP = 1.785V
0.013
0.012
0.011
0.010
0.009
0.008
0.007
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
RSA GAIN
vs. FREQUENCY
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
0
0.1k 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
CURRENT-SENSE AMPLIFIER (CSA) GAIN
vs. TEMPERATURE
20.04
20.03 VCSP = 100mV
20.02
20.01
20.00
19.99
19.98
19.97
19.96
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
CSA INPUT OFFSET
vs. TEMPERATURE
25.1
25.0
24.9
24.8
24.7
24.6
24.5
24.4
24.3
24.2
24.1
24.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
CSA GAIN
vs. FREQUENCY
30
25
20
15
10
5
0
-5
-10
-15
-20
0.01 0.1
1 10 100 1k 10k
FREQUENCY (Hz)
ZERO-CURRENT COMPARATOR THRESHOLD
vs. TEMPERATURE
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
8 _______________________________________________________________________________________
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