CAT4201TD-GT3 CATALYST SEMICONDUCTOR, CAT4201TD-GT3 Datasheet

CAT4201TD-GT3

Manufacturer Part Number

CAT4201TD-GT3

Description

IC, LED DRIVER, BUCK, TSOT-23-5

Manufacturer

CATALYST SEMICONDUCTOR

Datasheet

1.CAT4201TD-GT3.pdf (13 pages)

Specifications of CAT4201TD-GT3

Led Driver Application

Automotive Lighting

No. Of Outputs

Output Current

350mA

Output Voltage

32V

Input Voltage

6.5V To 36V

Dimming Control Type

PWM

Topology

Buck

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

CAT4201TD-GT3

Quantity:

5 000

Company:

H&T Electronics

Part Number:

CAT4201TD-GT3

Quantity:

1 000

Current page: 1 of 13
Download datasheet (172Kb)

CAT4201

350 mA High Efficiency

Step Down LED Driver

Description

drive high current LEDs. A patented switching control algorithm

allows highly efficient and accurate LED current regulation. A single

RSET resistor sets the full scale LED string current up to 350 mA from

supplies as high as 36 V.

internal power dissipation allowing the device to be housed in a tiny

package without the need for dedicated heat sinking. The device is

compatible with switching frequencies of up to 1 MHz, making it ideal for

applications requiring small footprint and low value external inductors.

input pin, CTRL. Additional features include overload current protection

and thermal shutdown. The device is available in the low profile 5−lead

thin SOT23 package and is ideal for space constrained applications.

Features

•

Applications

•

October, 2010 − Rev. 6

The CAT4201 is a high efficiency step−down converter optimized to

The switching architecture of the CAT4201 results in extremely low

Analog dimming and LED shutdown control is provided via a single

Compliant

LED Drive Current up to 350 mA

Compatible with 12 V and 24 V Standard Systems

Handles Transients up to 40 V

Single Pin Control and Dimming Function

Power Efficiency up to 94%

Drives LED Strings of up to 32 V

Open and Short LED Protection

Parallel Configuration for Higher Output Current

TSOT−23 5−lead Package

These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

12 V and 24 V Lighting Systems

Automotive and Aircraft Lighting

General Lighting

High Brightness 350 mA LEDs

D: ON Semiconductor MBR0540

L: Sumida CDRH6D26−220

See Table 4 on page 6 for external component selection.

Figure 1. Typical Application Circuit

VBAT

9 V

4.7 mF

VBAT

RSET

CTRL

CAT4201

GND

* Plated Finish: NiPdAu

CAT4201TD−GT3

Bulb Replacement

Device

TF = Device Code

Y = Production Year (Last Digit)

M = Production Month: 1−9, A, B, C

ORDERING INFORMATION

RSET

CTRL

GND

MARKING DIAGRAMS

PIN CONNECTIONS

http://onsemi.com

22 mH

CASE 419AE

10 mF

TD SUFFIX

(Top View)

TSOT−23

(Pb−Free)

TFYM

TSOT−23

Package

Publication Order Number:

VBAT

Tape & Reel

Shipping

350 mA

3,000/

CAT4201/D

Related parts for CAT4201TD-GT3

CAT4201TD-GT3 Summary of contents

Page 1

... General Lighting • High Brightness 350 mA LEDs D: ON Semiconductor MBR0540 L: Sumida CDRH6D26−220 See Table 4 on page 6 for external component selection. © Semiconductor Components Industries, LLC, 2010 October, 2010 − Rev. 6 CAT4201TD−GT3 * Plated Finish: NiPdAu Bulb Replacement VBAT 4.7 mF VBAT ...

Page 2

Table 1. ABSOLUTE MAXIMUM RATINGS Parameters VBAT, SW, CTRL RSET Switch SW peak current Storage Temperature Range Junction Temperature Range Lead Temperature Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the ...

Page 3

TYPICAL OPERATION CHARACTERISTICS ( 300 mA mH LED 1.0 0.8 0.6 0.4 0 INPUT VOLTAGE (V) Figure 2. Input Operating Supply Current 250 ...

Page 4

TYPICAL OPERATION CHARACTERISTICS ( 300 mA mH LED 500 150 mA 400 300 300 mA 200 100 INPUT VOLTAGE (V) Figure 8. Switching Frequency vs. ...

Page 5

TYPICAL OPERATION CHARACTERISTICS ( 300 mA mH LED 100 95 2 LEDs LED 100 150 200 250 LED CURRENT (mA) Figure 14. Efficiency vs. ...

Page 6

TYPICAL OPERATION CHARACTERISTICS ( 300 mA mH LED Figure 20. RSET Transient Response External Component Selection Table 4 provides the recommended external components L and C2 that offer the best ...

Page 7

Table 5. PIN DESCRIPTION Pin Name 1 CTRL Analog dimming control and shutdown pin. 2 GND Ground reference. 3 RSET RSET pin. A resistor connected between the pin and ground sets the average LED current Interface to the ...

Page 8

Simplified Block Diagram 12 V/ CTRL Reference – Basic Operation The CAT4201 is a high efficiency step−down regulator designed to drive series connected high−power LEDs. LED strings with total forward voltages of ...

Page 9

APPLICATION INFORMATION Input Voltage Range The minimum supply voltage required to maintain adequate regulation is set by the cathode terminal voltage of the LED string (i.e., the VBAT voltage minus the LED string voltage). When the LED cathode terminal falls ...

Page 10

DUTY CYCLE [%] Figure 25. LED Current vs. Duty Cycle VBAT 4 VBAT CAT4201 RSET CTRL SW GND PWM control R4 ...

Page 11

R5 VIN 4.7 μF VBAT CAT4201 RSET R1 8.3 kΩ CTRL SW GND C2 U2 4.7 μF VBAT CAT4201 RSET R2 8.3 kΩ CTRL SW GND C3 U3 4.7 μF VBAT CAT4201 RSET R3 8.3 kΩ ...

Page 12

TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-193. PACKAGE DIMENSIONS TSOT−23, 5 LEAD CASE 419AE−01 ISSUE O SYMBOL MIN A A1 0.01 A2 ...

Page 13

... All packages are RoHS−compliant (Lead−free, Halogen−free). 4. The standard plated finish is NiPdAu on all pins. 5. The device used in the above example is a CAT4201TD−GT3 (TSOT−23, NiPdAu, Tape & Reel, 3,000 / Reel). 6. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. ...

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