Overvoltage Protection Controllers

with Reverse Polarity Protection

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3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

EN Input Leakage Current

EN = GND or +5.5V

1

µA

TIMING

Startup Delay

20

50

80

ms

FLAG Blanking Time

20

50

80

ms

GATEN Turn-On Time

(MAX4864L/MAX4865L/MAX4866L)

10

ms

GATEN Turn-Off Time

(MAX4864L/MAX4865L/MAX4866L),

or from +4V to +7V (MAX4867)

720

µs

FLAG Assertion Delay

(MAX4864L/MAX4865L/MAX4866L),

Figure 2

3.5

µs

Initial Overvoltage Fault Delay

current), Figure 3

1.5

µs

Disable Time

V

2

µs

Note 1: All parts are 100% tested at +25°C. Electrical limits across the full temperature range are guaranteed by design and correlation.

+0.3V

+2.4V

Figure 4. Disable Timing Diagram

+0.3V

+8V (+7V)*

*MAX4867

+5V

+0.3V

Figure 1. Startup Timing Diagram

+0.3V

+0.3V

+5V

Figure 2. Shutdown Timing Diagram

80%

0V

Figure 3. Power-Up Overvoltage Timing Diagram