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SS1020FL - SS10100FL

列印 PDF

按此還有更多 1A Surface Mount Schottky Barrier Diode

PDF File 1A SS1020FL-SS10100FL (20V-100V) SOD-123FL

SINLOON® 小型化蕭特基二極管 SS1020FL-SS10100FL
Case: SOD-123FL 1A Surface Mount Schottky Barrier Diode
FEATURE: MECHANICAL CHARACTERISTICS:
Fast Switching Case: SOD-123FL Molded Plastic
Low Turn-on Voltage Weight: 0.017 Grams (approx)
Very small SMD package Marking: Device Part Code
Designed for Surface Mount Application Polarity: Cathode Band
PN Junction Guard Ring for Transient and ESD Protection. Terminals: Plated leads solder able per MIL-STD-202, Method 208.
Plastic Material - UL Recognition Flammability Classification 94V-0 Lead Free for Rohm / Lead free version and "LF" suffix to part number.
aximum Ratings @TA=25 unless otherwise specified
Characteristic Part Code SS SS SS SS SS Unit
1020FL 1030FL 1040FL 1060FL 10100FL
Symbol G2 G3 G4 G6 G10
DC Blocking Voltage: VR 20 30 40 60 100 V
Peak Repetitive Reverse Voltage VRRM
Working Peak Reverse Voltage VRWM
Forward Continuous Current (note 1) IF 1.0 1.0 1.0 1.0 1.0 A
(JEDC Method) IFSM 25 25 25 25 25 A
Thermal Resistance, Junction to Ambient (Note 1) RθJA 85 85 85 85 85 /W
Forward Voltage Drop      @IF = 0.5A VFM. 0.52 0.55 0.55 0.7 0.85 V
Peak Reverse Leakage Current @VRRM IRM. 100 μA
Typical Junction Capacitance (VR = 0V DC, f=1MHz) Cj. 50 pF
Operating and Storage Temperature Range TJ,TSTG. -65 to +125
Note: 1. Mounted on FR-4 PCB with 645mm2 pad size. Return to Schottky Diode First Page
2. Measured at 1.0MHz and applied reverse voltage of 4V D.C.
 
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Newsflash

以半導體構成的恆流源推動LED

LED驅動芯片 以半導體構成的恆流源推動

 

以半導體構成的恆流源推動LED

半導體可以構成相當穩定的恆流源,較以電阻控制電流穩定得多。一枚或多枚晶體管也可以構成簡單的恆流源,晶體管構成的恆流源簡單、成本低,使用運算放大器可以有更精確的電流控制,但線路較複雜,而且需要另加一個參考電壓源,成本大很多。這些線路的電流控制已相當精確,特別是使用運算放大器的線路,但功耗大、效率低的問題仍然是無法解決,對於大功率LED並不合適。最主要的原因是由於以線性方式控制電流,功耗消耗在電流控制元件內。

有些集成電路專為推動LED而設計,其檢測點做成的電壓降可以低至~0.2V的級數,這些集成電路多數都以開關式電源轉換]以控制LED電流恆定,開關式轉換配合mV級的檢測點電壓降使整體功耗十分低,但也有集成電路採線性電路控制LED的電流,例如用於單一枚鋰離子電池下推動白色光LED,由於採用線性電路,因功耗問題,輸出電流不能太大。