34844 datasheet(11/37 Pages) FREESCALE

Part #	34844

Description	10 Channel LED Backlight Driver with Integrated Power Supply

PDF	37 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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11 / 37 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

34844

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Interface Frequency Range

fSCK

400

kHz

SM-Bus Power-on-Reset Time

tRST

100

Output fall time

ρF < CL < 400ρF

160

Output rise time

ρF<CL<400ρF

LOGIC OUTPUT (CK)

Output Rise and Fall time(9)

CL<100ρF

tR/tF

LED CHANNELS

Channels Rise and Fall Time(9)

tR/tF

Table 4. Dynamic Electrical Characteristics

Characteristics noted under conditions VIN = 12V, VOUT = 42V, ILED = 50mA, PWM = VDC1, M/~S = VDC1,

PIN & NIN = VDC1, -40

°C ≤ TA ≤ 105°C, PGND = 0V, unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

Notes

Special considerations should be made for frequencies between 100Hz to 1KHz. Please refer to Functional Device Operation for further

details.

Guaranteed by design

34844 Datasheet(PDF) 11 Page - Freescale Semiconductor, Inc