Parallelable Secondary-Side Synchronous Rectifier

Driver and Feedback-Generator Controller ICs

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3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Zero-Current Comparator Input

Range

-0.1

+1.5

V

Zero-Current Comparator

Propagation Delay

low

65

ns

BUFIN: SYNCHRONIZING PULSE INPUT

BUFIN to Output Propagation

Delay

BUFIN rising to QREC rising or QSYNC

falling

40

ns

BUFIN Input Current

-1

+1

µA

BUFIN Input Capacitance

10

pF

BUFIN Input-Logic High

2.4

V

BUFIN Input-Logic Low

0.8

V

MARGINING INPUTS

RMGD Resistance

Sinking 10mA

6.5

11

Ω

RMGU Resistance

Sinking 10mA

6.5

11

Ω

MRGD Input-Logic High

2.4

V

MRGD Input-Logic Low

0.8

V

MRGU Input-Logic High

2.4

V

MRGU Input-Logic Low

0.8

V

MRGU, MRGD Input Resistance

40

k

Ω

RMGU, RMGD Leakage Current

-100

+100

nA

DRIVER OUTPUTS

QREC, QSYNC Peak Source

Current

2A

MAX5058

75

150

QREC, QSYNC Output-Voltage

High

Measured with respect to

MAX5059

75

150

mV

30

QREC, QSYNC Low-to-High

Delay Time

70

ns

QREC, QSYNC Peak Sink Current

2A

MAX5058

50

100

QREC, QSYNC Output-Voltage

Low

Sinking 50mA

MAX5059

50

100

mV

40

QREC, QSYNC High-to-Low

Delay Time

70

ns