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參數資料
| 型號： | CAT4201 |
| 元件分類： | LED驅動器 |
| 英文描述： | 350mA High Efficiency Step Down LED Driver |
| 中文描述： | 350mA的高效率LED驅動下步 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 330K |
| 代理商： | CAT4201 |
CAT4201
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-5025 Rev. B
350mA High Efficiency Step Down LED Driver
FEATURES
LED drive current up to 350mA
12V and 24V system compatible
Handles transients up to 40V
Single Pin Control and Dimming function
Power Efficiency up to 94%
Drives LED strings of up to 20 volts
Open and short LED protection
Parallel configuration for higher output current
RoHS-compliant TSOT-23 5-lead package
APPLICATIONS
12V and 24V Lighting Systems
Automotive and Aircraft Lighting
General lighting
High Brightness 350mA LEDs
ORDERING INFORMATION
Part Number
CAT4201TD-GT3
Quantity
per Reel
3000
Package
Marking
TF
* Plated Finish: NiPdAu
DESCRIPTION
The CAT4201 is a high efficiency step-down converter
optimized to drive high current LEDs. A patent-pending
switching control algorithm allows highly efficient and
accurate LED current regulation. A single RSET
resistor sets the full scale LED string current up to
350mA from supplies as high as 28V.
The switching architecture of the CAT4201 results in
extremely low 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 1MHz,
making it ideal for applications requiring small footprint
and low value external inductors.
Analog dimming and LED shutdown control is
provided via a single 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.
PIN CONFIGURATION
TSOT-23 5-lead
(Top View)
TYPICAL APPLICATION CIRCUIT
D: Central Schottky CMDSH05-4
L: Sumida CDRH6D26-220
See Table 1 on page 6 for external component selection.
For Ordering Information details, see page 14.
VBAT
CAT4201
RSET
2
3
1
SW
5
4
CTRL
GND
Bulb Replacement
CTRL
SW
GND
CAT4201
VBAT
VBAT
4.7μF
C1
10μF
C2
R1
10k
L
D
9V
RSET
22μH
300mA
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| CAT4201TD-GT3 | 350mA High Efficiency Step Down LED Driver |
| CAT4237 | High Voltage CMOS Boost White LED Driver |
| CAT4237TD | High Voltage CMOS Boost White LED Driver |
| CAT4237TS | High Voltage CMOS Boost White LED Driver |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT4201AEVB | 功能描述:BOARD EVALUATION DPP CAT4201A RoHS:是 類別:編程器，開發系統 >> 評估板 - LED 驅動器 系列:* 標準包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點:可調光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關產品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD |
| CAT4201AGEVB | 功能描述:LED 照明開發工具 EVAL BOARD FOR LED DRIVER RoHS:否 制造商:Fairchild Semiconductor 產品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| CAT4201TD | 制造商:ON Semiconductor 功能描述:IC LED DRIVER HI EFFICIENCY |
| CAT4201TD-GT3 | 功能描述:LED照明驅動器 350mA Hi-Efficiency Step-Down RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT4201TD-GT3 | 制造商:ON Semiconductor 功能描述:IC LED DRIVER BUCK TSOT-23-5 制造商:ON Semiconductor 功能描述:IC, LED DRIVER, BUCK, TSOT-23-5 |
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