| 產品參數 | | 品牌 | MBI | | 封裝 | TO-23-6 | | 批號 | 20 | | 數量 | 50000 | | RoHS | 是 | | 產品種類 | 電子元器件 | | 最小工作溫度 | -50C | | 最大工作溫度 | 80C | | 最小電源電壓 | 4V | | 最大電源電壓 | 6.5V | | 長度 | 2.4mm | | 寬度 | 2.5mm | | 高度 | 1.9mm | | 可售賣地 | 全國 | | 型號 | MBI6651GST | |   
Features
? ?Backward compatible with MBI6650 in package
? ?1A constant output current
? ?96 efficiency @ input voltage 12V, 350mA, 3-LED
? ?9~36V input voltage range
? ?Hysteretic PFM improves efficiency at light loading
? ?Settable output current
? ?Integrated power switch with 0.45ohm low Rds(on)
? ?Full protection: Thermal/UVLO/Start-Up/LED Open-/Short- Circuit
? ?Only 4 external components required
Product Description
The MBI6651 is a high efficiency, constant current and step-down DC/DC
converter. It is designed to deliver constant current to light up high power LED
with only 4 external components. With hysteretic PFM control scheme,
MBI6651 improves the efficiency of light loading. The output current of
MBI6651 can be programmed by an external resistor and LED dimming can
be controlled via pulse width modulation (PWM) through DIM pin. In addition,
the start-up function limits the inrush current while the power is switch on. The
MBI6651 also features under voltage lock out (UVLO), over temperature
protection, LED open-circuited protection and LED short-circuited protection
to protect IC from being damaged.
Additionally, to ensure the system reliability, the MBI6651 builds thermal
protection (TP) function inside. This function protects IC from overheating
(165°C) in various application conditions. MBI6651 provides thermal-
enhanced packages as well to handle power dissipation more efficiently.
MBI6651 is available in TO-252, SOT23-6 and MSOP-8 packages.
Applications
? ?Signage and Decorative LED Lighting
? ?Automotive LED Lighting
? ?High Power LED Lighting
? ?Constant Current Source ?
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