Datasheet CAT4201 (ON Semiconductor)
| Fabricante | ON Semiconductor |
| Descripción | 350 mA High Efficiency Step Down LED Driver |
| Páginas / Página | 13 / 1 — Description. www.onsemi.com. TSOT−23. TD SUFFIX. CASE 419AE. PIN … |
| Formato / tamaño de archivo | PDF / 201 Kb |
| Idioma del documento | Inglés |
Description. www.onsemi.com. TSOT−23. TD SUFFIX. CASE 419AE. PIN CONNECTIONS AND. MARKING DIAGRAMS. Features. ORDERING INFORMATION
Línea de modelo para esta hoja de datos
Versión de texto del documento
link to page 6 link to page 6 CAT4201 350 mA High Efficiency Step Down LED Driver
Description
The CAT4201 is a high efficiency step−down converter optimized to drive high current LEDs. A patented switching control algorithm
www.onsemi.com
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. The switching architecture of the CAT4201 results in extremely low 5 internal power dissipation allowing the device to be housed in a tiny 1 package without the need for dedicated heat sinking. The device is
TSOT−23
compatible with switching frequencies of up to 1 MHz, making it ideal for
TD SUFFIX
applications requiring small footprint and low value external inductors.
CASE 419AE
Analog dimming and LED shutdown control is provided via a single input pin, CTRL. Additional features include overload current protection
PIN CONNECTIONS AND
and thermal shutdown. The device is available in the low profile 5−lead
MARKING DIAGRAMS
(Top Views) thin SOT23 package ideal for space constrained applications. 1 CTRL VBAT
Features
TFYM • LED Drive Current up to 350 mA GND • Compatible with 12 V and 24 V Standard Systems RSET SW • Handles Transients up to 40 V TSOT−23 • Single Pin Control and Dimming Function TF = Specific Device Code • Power Efficiency up to 94% Y = Production Year (Last Digit) • M = Production Month: (1−9, O, N, D) Drives LED Strings of up to 32 V • Open and Short LED Protection • Parallel Configuration for Higher Output Current
ORDERING INFORMATION
• TSOT−23 5−lead Package •
Device Package Shipping
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS CAT4201TD−GT3 TSOT−23 3,000/ Compliant (Pb−Free) Tape & Reel
Applications
* Plated Finish: NiPdAu • 12 V and 24 V Lighting Systems • Automotive and Aircraft Lighting • General Lighting, High Brightness 350 mA LEDs VBAT 9 V C1
CAT4201
D C2 300 mA 4.7 mF VBAT 10 mF RSET R1 L CTRL SW 10 kW GND 22 mH D: ON Semiconductor MBR0540 L: Sumida CDRH6D26−220 See Table 4 on page 6 for external component selection.
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
September, 2015 − Rev. 9 CAT4201/D
Description
The CAT4201 is a high efficiency step−down converter optimized to drive high current LEDs. A patented switching control algorithm
www.onsemi.com
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. The switching architecture of the CAT4201 results in extremely low 5 internal power dissipation allowing the device to be housed in a tiny 1 package without the need for dedicated heat sinking. The device is
TSOT−23
compatible with switching frequencies of up to 1 MHz, making it ideal for
TD SUFFIX
applications requiring small footprint and low value external inductors.
CASE 419AE
Analog dimming and LED shutdown control is provided via a single input pin, CTRL. Additional features include overload current protection
PIN CONNECTIONS AND
and thermal shutdown. The device is available in the low profile 5−lead
MARKING DIAGRAMS
(Top Views) thin SOT23 package ideal for space constrained applications. 1 CTRL VBAT
Features
TFYM • LED Drive Current up to 350 mA GND • Compatible with 12 V and 24 V Standard Systems RSET SW • Handles Transients up to 40 V TSOT−23 • Single Pin Control and Dimming Function TF = Specific Device Code • Power Efficiency up to 94% Y = Production Year (Last Digit) • M = Production Month: (1−9, O, N, D) Drives LED Strings of up to 32 V • Open and Short LED Protection • Parallel Configuration for Higher Output Current
ORDERING INFORMATION
• TSOT−23 5−lead Package •
Device Package Shipping
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS CAT4201TD−GT3 TSOT−23 3,000/ Compliant (Pb−Free) Tape & Reel
Applications
* Plated Finish: NiPdAu • 12 V and 24 V Lighting Systems • Automotive and Aircraft Lighting • General Lighting, High Brightness 350 mA LEDs VBAT 9 V C1
CAT4201
D C2 300 mA 4.7 mF VBAT 10 mF RSET R1 L CTRL SW 10 kW GND 22 mH D: ON Semiconductor MBR0540 L: Sumida CDRH6D26−220 See Table 4 on page 6 for external component selection.
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
September, 2015 − Rev. 9 CAT4201/D