Datasheet > MP3318

MP3318

更新时间： 2024-04-09 19:01:28

品牌	Logo	应用领域
芯源 - MPS		驱动驱动器
页数	文件大小	规格书
25页	900K
描述
带I2C接口的3 路、38V 输出、线性/指数调光升压 WLED 驱动器

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数据手册

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MP3318 数据手册

MP3318–3-CHANNEL, LINEAR/EXPONENTIAL DIMMING, WLED DRIVER W/ I²C

ELECTRICAL CHARACTERISTICS (continued)

V_IN= 3.6V, V_EN= V_PWM= high, typical values are at T_A= 25°C, unless otherwise noted.

Parameters

Symbol

Condition

Min

Typ

Max

Unit

Rise time of SCLH clock

t_R,SCL

Rise time of SCLH clock after

repeated start and

t_R,SCL1

acknowledge bit

Fall time of SCLH clock

Rise time of SDAH data

Fall time of SDAH data

Setup time for stop condition

t_F,SCL

t_R,SDA

t_F,SDA

t_SU,STO

160

Capacitive load for SDAH line

and SCLH line

(8)

C_B

100

400

Capacitive load for

SDAH+SDA line and

SCLH+SCL line

C_B

NOTES:

5) Matching is defined as the difference between the maximum to minimum current divided by 2x the average currents.

6) Guaranteed by design.

7) A device must internally provide a data hold time to bridge the underfined part between VIL and VIH of the falling edge of the SCLH signal.

An input circuit with a threshold as low as possible for the falling edge of SCLH signal minimizes the hold time.

8) For the bus line load CB between 100 and 400pF the timing parameters must be increased linearly.

tF,SDA

tR,SDA

SDAH

SCLH

tSU,SDA

tHD,SDA

tHIGH

tSU,STA

tHD,STA

tSU,STA

tLOW

tHIGH

tR,SCL1

tR,SCL

tR,SCL1

tF,SCL

Sr: Repeated START Condition

P: STOP Condition

I²C-Compatible Interface Timing Diagram

MP3318 Rev.1.0

10/17/2017

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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