ZLED7530ZI1R datasheet, PDF - EEWORLD Datasheet

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ZLED7530ZI1R: DescriptionLED Lighting Drivers LED driver; Categorysemiconductor Other integrated circuit (IC); File Size613KB，22 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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LED Lighting Drivers LED driver

ZLED7530ZI1R Parametric

Parameter Name	Attribute value
Product Category	LED Lighting Drivers
Manufacturer	IDT (Integrated Device Technology, Inc.)
RoHS	Details
Input Voltage	8.5 V to 40 V
Operating Frequency	1 MHz
Supply Current - Max	600 uA
Output Current	750 mA
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 105 C
Mounting Style	SMD/SMT
Package / Case	SOP-8
Packaging	MouseReel
Packaging	Cut Tape
Packaging	Reel
Moisture Sensitive	Yes
Pd - Power Dissipation	500 mW (1/2 W)
Factory Pack Quantity	2500
Unit Weight	0.030018 oz

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High Current 40V LED Driver

with Switch Dimming

Brief Description

The ZLED7x30 continuous-mode inductive step-

down converter family is one of our ZLED LED-

control ICs. It is designed for applications requiring

high brightness and high current. The ZLED7x30

can efficiently drive a single LED or multiple

series-connected LEDs from a voltage input higher

than the LED forward voltage (Vin = 8.5 to

40VDC). It provides an adjustable output current

(1.2A maximum), which is set via an external

resistor and controlled by the ZLED7x30’s

integrated high-side output current-sensing circuit

and high speed internal 40V power switch. Its low

conducting impedance ensures high system effi-

ciency.

The ZLED7x30 provides a switch dimming func-

tion. It detects external switch action to adjust out-

put current, allowing dimming functionality to be

achieved without changing the original lighting sys-

tem circuitry.

The switch dimming is implemented in either two-

level mode or three-level mode. The output current

of every level and the total number of levels are

customer selected by setting the corresponding

input conditions of DIM1 and DIM2 pin.

The ZLED7x30 enables diverse industrial and

consumer lighting applications requiring high

driving currents, wide operating voltage range,

high efficiency, and variable brightness control. It

offers over-temperature and LED open-circuit

protection. The ZLED7x30 can also minimize bill-

of-material costs because very few external

components are required for most applications.

Only a resistor, a diode, an inductor, and three

capacitors are needed for a typical basic

application.

ZLED7x30

Datasheet

Features

•

Switch dimming with multiple levels

•

Three modes for output level settings

•

Up to 1.2A output current

•

Internal 40V power switch

•

Wide DC input voltage range 8.5 to 40 VDC

•

Output current accuracy: 5% (typical)

•

LED open-circuit protection

•

Thermal shutdown protection

Benefits

•

High efficiency: up to 98%

•

Very few external components needed for

operation

•

Adds switch dimming function to existing

installation

Available Support

•

Evaluation Kit

Physical Characteristics

•

Operating temperature: -40°C to 105°C

•

Switching frequency: up to 1MHz

•

SOP-8 package

ZLED7x30 Family Selection Matrix

Product

ZLED7030

ZLED7330

ZLED7530

ZLED7730

Max. Current Output

1.2A

1.0A

0.75A

0.35A

Package

SOP-8

ZLED7x30 Typical Application Circuit

Switch

Vs = 8.5 to 40 VDC

Vin

≥220µF 0.1µF

SENSE

(C3)

220 µH

LED

String

ZLED7x30

DIM1

GND

DIM2

GND/Floating

April 20, 2016

ZLED7x30 Datasheet

Contents

IC Characteristics .......................................................................................................................................................... 5

1.1

Absolute Maximum Ratings ................................................................................................................................... 5

1.2

Operating Conditions ............................................................................................................................................. 5

1.3

Electrical Parameters ............................................................................................................................................. 6

1.4

Typical Operation Graphs ...................................................................................................................................... 7

Circuit Description ....................................................................................................................................................... 12

2.1

ZLED7x30 Overview ............................................................................................................................................ 12

2.2

Control of Output Current via External Sense Resistor Rs .................................................................................. 12

2.3

Multi-Mode Switch Dimming................................................................................................................................. 12

2.4

ZLED7x30 Protection Features ............................................................................................................................ 13

2.4.1

Thermal Shut-down Protection ..................................................................................................................... 13

2.4.2

LED Open-Load Protection ........................................................................................................................... 13

Application Circuit Design............................................................................................................................................ 14

3.1

Applications.......................................................................................................................................................... 14

3.2

Thermal Considerations for Application Design ................................................................................................... 15

3.2.1

Temperature Effects of Load, Layout, and Component Selection................................................................. 15

3.2.2

Temperature Effects of Low Supply Voltage V

........................................................................................... 15

3.3

External Component Selection............................................................................................................................. 15

3.3.1

Sense Resistor Rs ........................................................................................................................................ 15

3.3.2

Inductor L1 .................................................................................................................................................... 16

3.3.3

Bypass Capacitor C1 .................................................................................................................................... 17

3.3.4

De-bouncing Capacitor C2............................................................................................................................ 19

3.3.5

Capacitor C3 for Reducing Output Ripple ..................................................................................................... 19

3.3.6

Diode D1 ....................................................................................................................................................... 19

3.4

Application Circuit Layout Requirements ............................................................................................................. 19

ESD Protection ............................................................................................................................................................ 20

Pin Configuration and Package ................................................................................................................................... 20

Ordering Information ................................................................................................................................................... 21

Document Revision History ......................................................................................................................................... 22

April 20, 2016

ZLED7530ZI1R Related Products

	ZLED7530ZI1R	ZLED7030ZI1R	ZLED7330ZI1R
Description	LED Lighting Drivers LED driver	LED Lighting Drivers LED driver	LED Lighting Drivers LED driver
Product Category	LED Lighting Drivers	LED Lighting Drivers	LED Lighting Drivers
Manufacturer	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)
RoHS	Details	Details	Details
Input Voltage	8.5 V to 40 V	8.5 V to 40 V	8.5 V to 40 V
Operating Frequency	1 MHz	1 MHz	1 MHz
Supply Current - Max	600 uA	600 uA	600 uA
Output Current	750 mA	1.2 A	1 A
Minimum Operating Temperature	- 40 C	- 40 C	- 40 C
Maximum Operating Temperature	+ 105 C	+ 105 C	+ 105 C
Mounting Style	SMD/SMT	SMD/SMT	SMD/SMT
Package / Case	SOP-8	SOP-8	SOP-8
Pd - Power Dissipation	500 mW (1/2 W)	500 mW (1/2 W)	500 mW (1/2 W)
Factory Pack Quantity	2500	2500	2500
Unit Weight	0.030018 oz	0.030018 oz	0.030018 oz
Packaging	Reel	Reel	Reel
Moisture Sensitive	Yes	-	Yes

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