e-퓨즈 LS12052BD33 모듈
(EFUSE 7 CLICK)
개요
- 본 제품은 e-퓨즈 LS12052BD33 모듈 입니다.
- 전원 패스상의 과도한 전압/전류로부터 회로를 보호하여 주는 제품입니다.
- LS12052BD33 칩을 장착하고 있습니다.
- 2.7V - 18V 입력 전압이 사용이 가능합니다.
특징
-
HOW DOES IT WORK?
eFuse 7 Click is based on the LS12052BD33, an eFuse with over-voltage protection and blocking FET control from Littelfuse. It is a current limit load switch with an integrated power load switch designed to manage current/voltage/start-up voltage ramp to the connected load. The internal MOSFET of the device will start conducting and allowing current to flow from IN to OUT as VIN rises by enabling the eFuse with an accurate ON/OFF threshold of 1.29V and 1.19V, respectively. After a Start-Up sequence, the eFuse will actively monitor its load current and input voltage. The eFuse will ensure that any harmful spikes are safely clamped to a pre-determined level at the output. The eFuse will shut down its internal MOSFET if the overload of the current limit is exceeded or the device's temperature exceeds its threshold.
The eFuse uses the TP86R203NL, an N-channel MOS from Toshiba, as a gate to the output screw terminal. The current limit on this eFuse 7 Click can be programmed. For this purpose, there is the AD5227, a 64-position up/down control digital potentiometer from Analog Devices. This 10K end-to-end potentiometer, in variable resistor configuration, is used to feed the current limit program pin of the eFuse.
eFuse 7 Click uses a simple 3-Wire serial interface of the digital potentiometer to allow the host MCU to set the current limit to this Click board™. Over the RST pin, you can enable the eFuse with the logic HIGH.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VIO SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type Power Switch Applications Can be used for the development of robust protection for multiple faults on the system rail and current limiting for systems such as telecom radios and industrial printers On-board modules LS12052BD33 - eFuse with over-voltage protection and blocking FET control from Littelfuse Key Features Wide operating voltage, adjusting current limit, short-circuit protection features, thermal shutdown protection, and auto recovery, reverse current blocking and more Interface GPIO Compatibility mikroBUS Click board size M (42.9 x 25.4 mm) Input Voltage 3.3V or 5V