PPMIC BU

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BL9582 Rev 1.2

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2/2010

©2010 Belling All Rights Reserved

5

BL9582

32V, 1.4A Step-down

High Brightness LED Driver with Internal Switch

Electrical Characteristics (continued)

Symbol

Parameter

Conditions

MIN

TYP

MAX

Unit

Continuous LX switch current

1.4

A

Chip enable delay time

The delay time between ADJ

pin rising edge and LX pin

falling edge

480

ns

Chip disable delay time

The delay time between ADJ

pin falling edge and LX pin

rising edge

25

ns

Recommended maximum

operating frequency

1

MHz

Over temperature protection

threshold

Temperature rising

160

°C

Over temperature protection

hysteresis

Temperature falling

20

°C

Note 6:

100% production test at +25°C. Specifications over the temperature range are guaranteed by design and

characterization.