Rainbow-electronics MAX8514 Instrukcja Użytkownika Pobierz pdf (Strona 8)

MAX8513/MAX8514

Wide-Input, High-Frequency, Triple-Output Supplies

with Voltage Monitor and Power-On Reset

8 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

= V

SUP2

= 12V, V

PVL

= V

BST

- V

= V

DRV3P

= 5V, V

SUP3N

= 3.3V, V

DRV3N

= -5V, C

= 4.7µF, C

REF

= 0.22µF, R

FREQ

15.0kΩ, T

= -40°C to +125°C (Note 2), unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN MAX UNITS

SYNC/EN Input-Voltage High 2.4 V

SYNC/EN Input-Voltage Low 0.8 V

SYNC/EN Input Current V

SYNC/EN

= 0 to 5.5V -1 +1 µA

SEQ, PFI, PFO, POR

SEQ Input-Voltage High 2.4 V

SEQ Input-Voltage Low 0.8 V

SEQ Input Current V

SEQ

= 0 to V

10 µA

POR

= 1.6mA 200

POR Output-Voltage Low

FB1

, V

FB2

, V

FB3P

FB3N

out-of-regulation

POR

= 0.1mA,

= 1.0V

200

POR Output Leakage Current

FB1

, V

FB2

, and V

FB3P

or V

FB3N

, in-

regulation

1µA

POR Power-Ready Delay Time

From V

FB1

, V

FB2

, and V

FB3P

or V

FB3N

, in-

regulation to POR = high impedance

140 560 ms

PFI Input Threshold Falling, V

HYST

= 20mV 1.20 1.25 V

PFI Input Bias Current V

PFI

= 1.0V 300 nA

PFO

= 1.6mA 200

PFO Output-Voltage Low PFI = 1.1V

PFO

= 0.1mA,

= 1.0V

200

PFO Output Leakage Current PFI = 1.4V, PFO = 5V 1 µA

Note 1: Guaranteed by design, not production tested.

Note 2: Specifications to -40°C are guaranteed by design, not production tested.

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