ISL97634 Просмотр технического описания (PDF) - Renesas Electronics

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производитель

ISL97634

White LED Driver with Wide PWM Dimming Range

Renesas Electronics 

ISL97634

Pin Configuration

ISL97634

(8 LD TDFN)

TOP VIEW

GND 1

VIN 2

PWM/EN 3

NC 4

THERMAL

PAD

8 LX

7 VOUT

6 FBSW

5 FB

Pin Descriptions

PIN NUMBER

1

2

3

PIN NAME

GND

VIN

PWM/EN

4

NC

5

FB

6

FBSW

7

VOUT

8

LX

PAD

DESCRIPTION

Ground Pin. Connect to local ground.

Input Supply Pin. Connect to the input supply voltage, the inductor and the input supply decoupling capacitor.

PWM or Enable Pin. Connect external PWM signal allows pulse width modulation current operation. Enable

signal allows peak current operation or disable signal shuts down the device.

No Connect

Feedback Pin. Connect the sense resistor between FB and ground. The cathode of bottom LED can also be

connected at this pin if the output current is not to be PWMed.

FB Disconnect Switch. Connect to the cathode of the bottom LED if the output current to be PWMed.

Output Pin. Connect to the anode of the top LED and the output filter capacitor.

Switching Pin. Connect to inductor.

Connect to ground plane on the PCB to maximize thermal performance.

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART

MARKING

OVP OPTIONS

(V)

TEMP RANGE

(°C)

PACKAGE

Tape and Reel

(Pb-free)

PKG.

DWG. #

ISL97634IRT14Z-T

ELE

14

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

ISL97634IRT14Z-TK

ELE

14

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

ISL97634IRT18Z-T

ELF

18

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

ISL97634IRT18Z-TK

ELF

18

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

ISL97634IRT26Z-T

ELG

26

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

ISL97634IRT26Z-TK

ELG

26

-40 to +85

8 Ld 2x3 TDFN

L8.2x3A

NOTES:

1. Please refer to TB347 for details on reel specifications

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte

tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil

Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for ISL97634. For more information on MSL please see tech brief TB363.

FN6264 Rev 4.00

August 27, 2013

Page 3 of 12

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