The SDH771XTK is a high-precision LED constant current driver circuit, it is applicable to non-isolated buck LED constant current power system with full AC input voltage range of 85VAC~265VAC.
SDH771XTK integrates 500V high-voltage power MOSFET, and a 600V freewheeling diode. It integrates a high-voltage power supply circuit, it is able to supply power to itself without any startup resistor and auxiliary winding, and at the same time, a conventional external power supply capacitor VCC is omitted, which greatly shortens the startup time as well as saves the system cost. The SDH771XTK works in inductor current boundary conduction mode, it uses a unique high-accuracy current sense technology, combined with internal compensation, can achieve high constant current accuracy and excellent line/load regulation.
SDH771XTK provides various protections, such as output short circuit protection, cycle-by-cycle over current protection, over temperature regulation, and open circuit protection for sensing resistor, which greatly improves the system safety and reliability.
Available 500V high voltage power MOSFET in one package with stable performance
Integrated 600V ultra-fast recovery diode
Integrated high-voltage power supply, without the need for any external starting resistor and VCC capacitor
Accurate constant current threshold (<±3%)
Output short circuit protection
Over temperature regulation
Cycle-by-cycle over current protection
No auxiliary winding
Product Name | Package form | Marking | Hazardous Substance Control | Packing Type | Remarks |
---|---|---|---|---|---|
SDH7711BTK | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7711BTKTR | SOP-7-225-1.27 | / | Halogen free | Tape & Reel | |
SDH7711ATK | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7711ATKTR | SOP-7-225-1.27 | / | Halogen free | Tape & Reel | |
SDH7711TK | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7711TKTR | SOP-7-225-1.27 | / | Halogen free | Tape & Reel | |
SDH7712TK | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7712TKTR | SOP-7-225-1.27 | / | Halogen free | Tape & Reel |
title | Types of | Size (KB) | date | Download the latest English version |
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SDH771XTK | 0 | 1970-01-01 | SDH771XTK Brief Datasheet |