STR-W6700 Datasheet | Sanken

Features and benefits include the following: - Blocking (or intermittent) oscillation operation by reducing output voltage in the standby mode. - In addition to the standard quasi-resonant operation, a bottom-skip function is available for increased efficiency from light to medium load. - Soft-start operation at start-up. - Reduced switching noise (pared to conventional PWM hard-switching solution) with a step-drive function. - Built-in avalanche-energy-guaranteed power MOSFET (to simplify surge-absorption circuit; no VDSS derating is required). - Overcurrent protection (OCP), overvoltage protection (OVP), overload protection (OLP), and maximum ON-time control circuits are incorporated. OVP and OLP go into a latched mode. - Able to save SMPS design time with present designs and evaluation processes. Contents Introduction Pin functional descriptions Operation description Transformer parameters General considerations Design considerations Package Dimensions, TO-220 Worldwide Contacts 28103.30 Figure 1. STR-W6700 series packages are fully molded TO-220 package types. Pin 2 is deleted for greater isolation. Table 1. Product Line-up Type # STR-W6735 STR-W6753 STR-W6754 STR-W6756 STR-W6765 800 650 MOSFET VDSS (V) 500 RDS(on) (Max) (Ω) 0.57 1.70 0.96 0.73 1.80 VAC Input (V) 120 Wide 230 Wide 230 Wide 230 Wide 230 POUT- (W) 160 58 120 100 160 140 240 50 110 - The listed output power represents thermal ratings, and the peak output power, POUT , is obtained by 120% to 140% of the thermal rating value. In case of low output voltage and narrow on-duty cycle, the POUT (W) bees lower than the above. 1 2 6 10 11 13 14 17 All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature of 25°C, unless otherwise stated. SANKEN ELECTRIC CO., LTD. http://.sanken-ele.co.jp/en/ Free Datasheet http://.. Pin functional descriptions VCC Supply (pin 4) Start-up circuit The start-up...