MAX5059 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5059 Datasheet PDF : 25 Pages
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Parallelable Secondary-Side Synchronous Rectifier
Driver and Feedback-Generator Controller ICs
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +12V, GND = PGND = 0, VDR = VREG, CQSYNC = CQREC = 0, ZCP = ZCN = BUFIN = CSP = CSN = SFN = VSN = GND, VIREF =
VVSP = 1.785V, CVREG = 2.2µF, CVP = 1µF, CCOMPS = 0.1µF, CSFP = 68nF, TA = TMIN to TMAX, unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Zero-Current Comparator Input
Range
VZC
-0.1
+1.5
V
Zero-Current Comparator
10mV overdrive, from when VZCP - VZCN is
Propagation Delay
tZC
greater than VZCTH to when QSYNC goes
65
ns
low
BUFIN: SYNCHRONIZING PULSE INPUT
BUFIN to Output Propagation
Delay
tpd
BUFIN rising to QREC rising or QSYNC
falling
BUFIN Input Current
BUFIN Input Capacitance
BUFIN Input-Logic High
BUFIN Input-Logic Low
MARGINING INPUTS
IBUFIN
CBUFIN
VHBUFIN
VLBUFIN
RMGD Resistance
RMGU Resistance
MRGD Input-Logic High
MRGD Input-Logic Low
MRGU Input-Logic High
MRGU Input-Logic Low
RRMGD
RRMGU
VHMRGD
VLMRGD
VHMRGU
VLMRGU
Sinking 10mA
Sinking 10mA
MRGU, MRGD Input Resistance
RMRGD,
RMRGU
RMGU, RMGD Leakage Current
IRMGU,
IRMGD
DRIVER OUTPUTS
QREC, QSYNC Peak Source
Current
QREC, QSYNC Output-Voltage
High
IQREC_SO,
IQSYNC_SO
VQREC_H,
VQSYNC_H
Measured with respect to
VVDR, sourcing 50mA
MAX5058
MAX5059
40
ns
-1
+1
µA
10
pF
2.4
V
0.8
V
6.5
11
Ω
6.5
11
Ω
2.4
V
0.8
V
2.4
V
0.8
V
40
kΩ
-100
+100
nA
2
A
75
150
mV
75
150
QREC, QSYNC Low-to-High
Delay Time
QREC, QSYNC Peak Sink Current
QREC, QSYNC Output-Voltage
Low
QREC, QSYNC High-to-Low
Delay Time
tPDLH
CQREC = CQSYNC = 0
CQREC = CQSYNC = 5nF
IQREC_SI,
IQSYNC_SI
VQREC_L,
VQSYNC_L
Sinking 50mA
tPDHL
CQREC = CQSYNC = 0
CQREC = CQSYNC = 5nF
MAX5058
MAX5059
30
ns
70
2
A
50
100
mV
50
100
40
ns
70
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