SC5014 データシートの表示（PDF） - Semtech Corporation

部品番号

コンポーネント説明

メーカー

SC5014

High Efficiency 4-Channel HB LED Driver with I2C Interface and Phase-Shifted PWM Dimming

Semtech Corporation 

LED String Current Matching vs. Temperature

LED String Current vs. RSISECT 5014

Typical Characteristics (continued)

LED String Current Matching vs. Temperature

˃ˁˋ VCC=5V, 120mA/CH

LED String Current vs. RISET

˦̊˼̇˶˻˼́˺ʳ˙̅˸̄̈˸́˶̌ʳ̉̆ˁʳ˥˜˦˘˧

˄ˈ˃

˄˅˃

˃ˁˉ

ˌ˃

˃ˁˇ

ˉ˃

˃ˁ˅

LED String Current vs. RISET

˃ˁ˃

ˀˇ˃

ˀ˅˃

˃

˅˃

ˇ˃

ˉ˃

ˋ˃

˄˃˃

T˧e˸̀m̃p˸̅˴ė̈r̅a˸tʻкurʼ e (°C)

˦̊˼̇˶˻˼́˺ʳ˙̅˸̄̈˸́˶̌ʳ̉̆ˁʳ˥˙˦˘˧

Switching Frequency vs. RFSET

˅ˇ˃˃

ˆ˃

Current Accuracy vs. Temperature

˃

˃

˅˃

ˇ˃

ˉ˃

ˋ˃

˄˃˃

˄˅˃

˄ˇ˃

˥˜R˦˘I˧SʻE˞T(ӨKʼΩ)

LED String Current Accuracy vs Temperature

˄˅ˇ VCC=5V, 120mA/CH

˜ˢˆ

˅˃˃˃

˄˅˅

˄ˉ˃˃

˄˅˃

˄˅˃˃

˄˄ˋ

ˋ˃˃

˄˄ˉ

ˇ˃˃

˃

˃

˄ˈ˃

ˆ˃˃

ˇˈ˃

ˉ˃˃

AnalRogFSEDT(iKmΩm) ing

˥˙˦˘˧ʻ˞Өʼ

LED String Current vs. Analog Dimming Control

Register (IDAC) Value

125

˄˄ˇ

ˀˇ˃

ˀ˅˃

˃

˅V˃ IN Sˇt˃art UˉP˃ ˋ˃

T˧e˸m̀̃p˸̅e˴ṙ̈a̅˸tʳuʻкreʼ (°C)

VIN Start Up Testing condition: VIN=12V,VCC=5V, LEDs=10S4P@120mA,

RFSET=100KӨ, 25к

10S4P, 120mA/CH

100

VIN

10V/div.

75

IO1

VSW

20V/div.

50

25

VOUT

 20V/div.

˄˃˃

Vin

SW

Vout

Iout

0

0

4

8

12

16

20

24

28

32

IDAC Register ValuDeEC(in decimal format)

IOUT

300mA/div.

Time (20ms/div)



Share Link: