- 您现在的位置：买卖IC网 > Sheet目录318 > CAT4137TD-T3 (ON Semiconductor)IC LED DRVR WHITE BCKLGHT TSOT-5
CAT4137
Pin Description
VIN is the supply input for the internal logic. The device is
compatible with supply voltages down to 2.2 V and up to
5.5 V. A small bypass ceramic capacitor of 1 m F is
recommended between the VIN and GND pins near the
device. The under ? voltage lockout (UVLO) circuitry will
place the device into an idle mode (not switching) whenever
the supply falls below 1.9 V.
SHDN is the shutdown logic input. When the pin voltage is
taken below 0.4 V, the device immediately enters shutdown
mode, drawing nearly zero current. At voltages greater than
1.5 V, the device becomes fully enabled and operational.
SW pin is the drain terminal of the internal low resistance
power switch. The inductor and the Schottky diode anode
should be connected to the SW pin. Traces going to the SW
pin should be as short as possible with minimum loop area.
This pin contains over-voltage circuitry which becomes
active above 24 V. In the event of an “Open ? Led” fault
condition, the device will enter a low power mode and the
SW pin will be clamped to approximately 30 V.
FB feedback pin is regulated at 0.3 V. A resistor connected
between the FB pin and ground sets the LED current
according to the formula:
GND is the ground reference pin. This pin should be
connected directly to the ground plane on the PCB.
I LED +
0.3 V
R1
The lower LED cathode is connected to the FB pin.
Table 4. PIN DESCRIPTIONS
Pin #
1
2
3
4
5
Name
SW
GND
FB
SHDN
VIN
Function
Switch pin. This is the drain of the internal power switch.
Ground pin. Connect the pin to the ground plane.
Feedback pin. Connect to the last LED cathode.
Shutdown pin (Logic Low). Set high to enable the driver.
Power Supply input.
http://onsemi.com
8
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
CAT4139TD-GT3
IC LED DRVR WHITE BCKLGT TSOT-5
CAT4237TD-T3
IC LED DRVR WHITE BCKLGHT TSOT-5
CAT4238TD-GT3
IC LED DRVR WHITE BCKLGHT TSOT-5
CAT4240TD-GT3
IC LED DRVR WHITE BCKLGHT TSOT-5
CAT93C56XI
IC EEPROM 2KBIT 2MHZ 8SOIC
CAT93C66XI
IC EEPROM 4KBIT 2MHZ 8SOIC
CAT93C86LI-G
IC EEPROM 16KBIT 3MHZ 8DIP
CAT9532WI-T1
IC LED DRIVER LINEAR 24-SOIC
相关代理商/技术参数
CAT4137TS
制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:CMOS Boost Converter - White LED Driver
CAT4139
制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:22V High Current Boost White LED Driver
CAT4139AEVB
功能描述:BOARD EVALUATION DPP CAT4139A RoHS:是 类别:编程器，开发系统 >> 评估板 - LED 驱动器 系列:* 标准包装:1 系列:PowerWise® 电流 - 输出 / 通道:20mA 输出及类型:1，非隔离 输出电压:17V 特点:可调光 输入电压:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相关产品: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
CAT4139AGEVB
功能描述:CAT4139 1, Non-Isolated Output LED Driver Evaluation Board 制造商:on semiconductor 系列:- 零件状态:有效 电流 - 输出/通道:100mA 输出和类型:1，非隔离 电压 - 输出:22V 特性:可调光 电压 - 输入:2.8 V ~ 5.5 V 所含物品:板 使用的 IC/零件:CAT4139 标准包装:1
CAT4139TD-GT3
功能描述:LED照明驱动器 High Current Boost White RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
CAT4139TD-GT3
制造商:ON Semiconductor 功能描述:DRIVER LED 0.75A 1MHZ 22V 制造商:ON Semiconductor 功能描述:IC WHITE LED DRIVER BOOST TSOT-23-5
CAT4139TD-GT3
制造商:ON Semiconductor 功能描述:IC WHITE LED DRIVER BOOST TSOT-23-5
CAT-41871
制造商:Thomas & Betts 功能描述:Cable Accessories Cable Tie Box