STSR30 STMicroelectronics, STSR30 Datasheet
STSR30
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STSR30 Summary of contents
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... OPERATING FREQUENCY 500 KHz INHIBIT BLANKING TIME: 700 ns AUTOMATIC TURN OFF FOR DUTY-CYCLE LESS THAN 14% POSSIBILITY TO OPERATE IN DISCONTINUOUS MODE DESCRIPTION STSR30 Smart Driver IC provides a high current outputs to properly drive secondary Power Mosfets used as Synchronous Rectifier in low output voltage, high efficiency Converters ...
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... ORDERING CODES TYPE STSR30 CONNECTION DIAGRAM (top view) 2/10 Parameter =105°C SO-8 (No heatsink) A Parameter SO-8 STSR30D Value Unit - 275 mW -40 to +150 °C -40 to +125 °C SO-8 Unit 40 °C/W 160 (*) °C/W SO-8 (T&R) STSR30D-TR ...
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... Synchronous Rectifiers avoiding any eventual shoot-through situation on secondary side at both transitions. Clock revelation mechanism makes the operation of STSR30 particularly suitable for flyback adaptors application allowing correct operation during discontinuous mode. Absolute maximum positive voltage rating of the pin can be exceeded limiting the current flowing into the pin to 10mA max. > ...
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... STSR30 ELECTRICAL CHARACTERISTICS ( -40 to 125° 100nF ceramic, unless otherwise specified Symbol Parameter SUPPLY INPUT AND UNDER VOLTAGE LOCK OUT V Start Threshold CC Turn OFF Threshold After Start I Unloaded Supply Current CC GATE DRIVER OUTPUT OUT Output Low Voltage GATE ...
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... Figure 1 : TIMING DIAGRAM Figure 2 : STSR30 IN FLYBACK CONVERTER SECONDARY SIDE Vi PWM +5V NOTES 1) Ceramic Capacitors C1 and C2 must be placed very close to the IC and R2 set the anticipation time by partitioning the pull-up resistor limits the current flowing through diode D2 when Freewheeling drain voltage is high; ...
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... STSR30 Figure 3 : STSR30 SYNCHRONIZATION TECHNIQUE The synchronization is based on the revelation of the low level of the drain voltage of the synchronous rectifier. To avoid false triggering of the device during discontinuous mode important that the lowest level of the ringing must be higher than the Ck threshold. Diode D3 and resistor R3 keep the Ck signal to high level even during the ringing ...
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... Figure 5 : INHIBIT Threshold Voltage vs Temperature Figure Frequency CC Figure 7 : Rise and Fall Time vs Load Capacitor Figure Temperature DS(ON) Figure 9 : Minimum T ON(GATE) Figure 10 : OUT Turn-off Jitter with GATE Minimum Anticipation Time STSR30 7/10 ...
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... STSR30 DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 8/10 SO-8 MECHANICAL DATA mm. TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 6.20 0.50 1.27 ˚ (max.) 8 0.1 inch MIN. TYP. MAX. 0.053 0.069 0.04 0.010 0.043 0.065 0.013 0.020 0.007 0.010 0.189 0.197 0.150 0.157 0.050 0.228 0.244 0.010 0.020 0.016 0.050 0016023/C ...
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... Tape & Reel SO-8 MECHANICAL DATA mm. DIM. MIN 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 5.9 0.216 2.3 0.082 4.1 0.153 8.1 0.311 STSR30 inch TYP. MAX. 12.992 0.519 0.882 0.335 0.232 0.090 0.161 0.319 9/10 ...
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... STSR30 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...