LM3630ATME datasheet(6/51 Pages) TI1

部件名	LM3630ATME

功能描述	High-Efficiency Dual-String White LED Driver

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制造商	TI1 [Texas Instruments]

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LM3630A

SNVS974B – APRIL 2013 – REVISED OCTOBER 2015

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Electrical Characteristics (continued)

Typical limits are for TA = 25°C; minimum and maximum limits apply over the full operating ambient temperature range

(

−40°C ≤ TA ≤ 85°C); VIN = 3.6 V, unless otherwise specified.

(1)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

LOGIC INPUTS (PWM, HWEN, SEL, SCL, SDA)

VIL

Input logic low

2.3 V

≤ VIN ≤ 5.5 V

0

0.4

V

VIH

Input logic high

2.3 V

≤ VIN ≤ 5.5 V

1.2

VIN

Output logic low (SDA,

VOL

2.3 V

≤ VIN ≤ 5.5 V

400

mV

INTN)

ƒPWM

PWM input frequency

2.3 V

≤ VIN ≤ 5.5 V

10

80

kHz

SDA

4.5

CIN

Input capacitance

pF

SCL

5

6.6 I

2C-Compatible Timing Requirements (SCL, SDA)

See

(1).

MIN

NOM

MAX

UNIT

t1

SCL (clock period)

2.5

µs

t2

Data in setup time to SCL high

100

t3

Data in setup time to SCL low

0

ns

t4

SDA low setup time to SCL low (start)

100

t5

SDA high hold time to SCL high (stop)

100

(1)

SCL and SDA must be glitch-free in order for proper brightness to be realized.

6

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