RT8560 datasheet(6/15 Pages) RICHTEK

Part #	RT8560

Description	High Voltage 4 Channel LED Driver

Download	15 Pages

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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6 / 15 page

RT8560

6

DS8560-01 April 2011

www.richtek.com

Absolute Maximum Ratings

(Note 1)

Supply Voltage, VCC1, VCC2 ------------------------------------------------------------------------------------------ 42V

SW Pin Voltage at Switching Off -------------------------------------------------------------------------------------- 65V

LED1, LED2, LED3, LED4 Pin ----------------------------------------------------------------------------------------- 25V

EN Pin Voltage ------------------------------------------------------------------------------------------------------------- 20V

RISET Pin Voltage -------------------------------------------------------------------------------------------------------- 4V

ACTL, DCTL, OVP, SS, VC Pin Voltage ----------------------------------------------------------------------------- 8V

Power Dissipation, PD @ TA = 25

°C

WQFN-20L 4x4 ------------------------------------------------------------------------------------------------------------ 1.852W

Package Thermal Resistance (Note 2)

WQFN-20L 4x4,

θJA ------------------------------------------------------------------------------------------------------- 54°C/W

WQFN-20L 4x4,

θJC ------------------------------------------------------------------------------------------------------ 7°C/W

Junction Temperature ----------------------------------------------------------------------------------------------------- 150

°C

Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260

°C

Storage Temperature Range --------------------------------------------------------------------------------------------

−65°C to 150°C

ESD Susceptibility (Note 3)

HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V

Recommended Operating Conditions

(Note 4)

Supply Input Voltage, VCC1, VCC2 ---------------------------------------------------------------------------------- 7V to 40V

Junction Temperature Range --------------------------------------------------------------------------------------------

−40°C to 125°C

Ambient Temperature Range --------------------------------------------------------------------------------------------

−40°C to 85°C

Electrical Characteristics

(VCC1 = 17V, TA = 25

°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

VCC1 UVLO Threshold

VUVLO

VCC1 Rising

--

6.2

6.5

V

Supply Current

IVCC1

VC

≤ 0.4V (Switching off)

--

4

7

mA

Shutdown Current

ISHDN

VEN ≤ 0.7V

--

12

--

μA

Logic-High Voltage VEN_H

2

--

5

EN

Threshold

Logic-Low Voltage VEN_L

--

0.8

V

Logic-High Voltage VACTL_H

2

--

5

ACTL

Threshold

Logic-Low Voltage VACTL_L

--

0.15

V

EN Pin Input Current

IEN

VEN ≤ 5V

--

2

μA

LED Current Programming

LED Current

ILED

2V > VLED > 0.7V, RISET = 5.36kΩ,

VACTL >1.28V

19

20

21

mA

LED´s Current Matching

2V > VLED > 0.7V, RISET = 5.36kΩ,

VACTL >1.28V, Calculating

(I(MAX) − I(MIN) / IAVERAGE x 100%)

--

3

%

RISET Pin Voltage

VRISET

RISET = 5.36kΩ, VACTL > 1.28V

--

1.21

--

V

Input Current of ACTL

IACTL

0.3V

≤ V

ACTL ≤ 1.2V

--

2

μA

To be continued

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