LDS8710008-T2-250 datasheet, PDF

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LDS8710008-T2-250: DescriptionLED Driver, 10-Segment, PDSO8, 2 X 3 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-220, TDFN-8; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size466KB，10 Pages; ManufacturerIXYS; Environmental Compliance

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LDS8710008-T2-250 Overview

LED Driver, 10-Segment, PDSO8, 2 X 3 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-220, TDFN-8

LDS8710008-T2-250 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Parts packaging code	QFN
package instruction	HVSON, SOLCC8,.12,20
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Interface integrated circuit type	LED DISPLAY DRIVER
JESD-30 code	R-PDSO-N8
length	3 mm
Multiplex display function	NO
Number of functions	1
Number of segments	10
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVSON
Encapsulate equivalent code	SOLCC8,.12,20
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	3.6 V
Certification status	Not Qualified
Maximum seat height	0.8 mm
Maximum supply voltage	5.5 V
Minimum supply voltage	2.7 V
Nominal supply voltage	3.6 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	2 mm
Base Number Matches	1

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LDS8710

High Efficiency 10 LED Driver With No External Schottky

FEATURES



High efficiency boost converter with the input

voltage range from 2.7 to 5.5 V



No external Schottky Required (Internal

synchronous rectifier*)



250 mV current sense voltage



Drives one LED string with 10 LEDs in series

up to 30 mA



0.7 MHz Switching Frequency



Efficiency greater than 83%



PWM LED Dimming Control Mode



Over-voltage, under-voltage, over-current,

and over-temperature protection



Low Shutdown Current (<1µA)



Available in 2 x 3 x 0.8 mm 8-pin TDFN

package

eliminating the need for ballast resistors and factory

calibration. Operation at 0.7 MHz allows use of small

value low profile inductor (10 – 33 µH) and 1µF 50V

ceramic capacitor.

The use of integrated synchronous rectifier makes

the efficiency dependent on only inductor DC

resistance.

The supply voltage down to 2.7 V for new Li-ion

battery chemistries or two alkaline battery cells

extends the battery life. Under-voltage protection

disables the part when V

voltage reaches 2.0V

The LDS8710 has thermal shutdown set at 150 C.

Above this value , the boost converter stops

switching. The part resumes normal operations when

temperature drops below 130 C.

The over-current protection provides cycle-by-cycle

current limit.

The internal output over-voltage protection prevents

damage in the case of a faulty LED disconnect.

The PWM control ensures brightness adjustment with

a frequency from 100 Hz up to 30 KHz.

The EN/PWM logic input functions as a chip enable

and LED current PWM contol pin.

The device is available in in 8-pin TDFN 2 x 3 mm

package with a max height of 0.8 mm.

APPLICATION



Color Display Backlight

Portable Navigation and GPS Receivers

Smart phones

Digital Photo Frames

Portable DVD Players

Multimedia Phones

DESCRIPTION

The LDS8710 is a fixed frequency current mode

boost converter with internal synchronous rectifier

and cycle-by-cycle switch current limit specifically

designed to drive a string of up to 10 White LEDs

with factory preset maximum current 20, 25, or 30

mA. Series connection of the LEDs provides constant

current and subsequently uniform brightness,

TYPICAL APPLICATION CIRCUIT

*) Patent pending

Characteristics subject to change without notice

Doc. No. 8710DS, Rev. N1.0

LDS8710008-T2-250 Related Products

	LDS8710008-T2-250	LDS8710008-T2-300	LDS8710008-T2-200
Description	LED Driver, 10-Segment, PDSO8, 2 X 3 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-220, TDFN-8	LED Driver, 10-Segment, PDSO8, 2 X 3 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-220, TDFN-8	LED Driver, 10-Segment, PDSO8, 2 X 3 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, HALOGEN FREE AND ROHS COMPLIANT, MO-220, TDFN-8
Is it Rohs certified?	conform to	conform to	conform to
Parts packaging code	QFN	QFN	QFN
package instruction	HVSON, SOLCC8,.12,20	HVSON, SOLCC8,.12,20	HVSON, SOLCC8,.12,20
Contacts	8	8	8
Reach Compliance Code	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99
Interface integrated circuit type	LED DISPLAY DRIVER	LED DISPLAY DRIVER	LED DISPLAY DRIVER
JESD-30 code	R-PDSO-N8	R-PDSO-N8	R-PDSO-N8
length	3 mm	3 mm	3 mm
Multiplex display function	NO	NO	NO
Number of functions	1	1	1
Number of segments	10	10	10
Number of terminals	8	8	8
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVSON	HVSON	HVSON
Encapsulate equivalent code	SOLCC8,.12,20	SOLCC8,.12,20	SOLCC8,.12,20
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
power supply	3.6 V	3.6 V	3.6 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	0.8 mm	0.8 mm	0.8 mm
Maximum supply voltage	5.5 V	5.5 V	5.5 V
Minimum supply voltage	2.7 V	2.7 V	2.7 V
Nominal supply voltage	3.6 V	3.6 V	3.6 V
surface mount	YES	YES	YES
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm
Terminal location	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	2 mm	2 mm	2 mm
Base Number Matches	1	1	1

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