RT9591GQV RICHTEK [Richtek Technology Corporation], RT9591GQV Datasheet
RT9591GQV
Related parts for RT9591GQV
RT9591GQV Summary of contents
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Smart Photoflash Capacitor Charger with IGBT Driver General Description The RT9591 is a highly integrated photoflash charging solution in digital and film cameras targeted for applications that use either two AA batteries or a single lithium-ion battery. The ...
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RT9591 Typical Application Circuit V BAT C 1.8V to 6.5V IN 10uF AO3400 R6 1. FBVD V 5 VDD DD 3.3V 1uF R8 100k 7 STAT 6 CHARGE 2 PGND V BAT C 1.8V to 6.5V ...
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V BAT 1.8V to 6. FBVD VDD 3.3V 1uF R7 100k 7 STAT 6 CHARGE 2 PGND Figure 3. Photoflash Capacitor Charger Application with Center-Tap Transformer DS9591-07 August 2007 Preliminary Delta 86A-3145B ...
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RT9591 Function Block Diagram VBAT VDD 1M CS Chip Enable CHARGE One Shot GND FBVD DRVIN Functional Pin Description Pin No. Pin Name PGND 3 EXT 4 GND 5 VDD 6 CHARGE 7 STAT 8 FBVD 9 ...
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Absolute Maximum Ratings Supply Voltage DD, BAT, DRV EXT -------------------------------------------------------------------------------------------------------------------- −0. DRVOUT -------------------------------------------------------------------------------------------------------------- −0. IMCD ------------------------------------------------------------------------------------------------------------------ −0. Other I/O Pin Voltage ---------------------------------------------------------------------------------------------- −0. Power Dissipation ...
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RT9591 Parameter Charge Input High Threshold Charge Input Low Threshold Minimum Off Time IGBT Driver IGBT Driver Supply Voltage DRVIN Input High Threshold DRVIN Input Low Threshold DRVOUT On Resistance to V VDRV DRVOUT On Resistance to GND Propagation Delay ...
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Typical Operating Characteristics Charge Time vs. V 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 1.8 2.8 3.8 V Efficiency vs. Output Voltage 3. 2.5V ...
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RT9591 V & Primary Current 100V OUT Time (1us/Div) V & Primary Current 300V OUT Time (1us/Div) STAT & Output Voltage Time (1s/Div) www.richtek.com 8 Preliminary 100V OUT V SW ...
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Application Information The RT9591 integrates a constant peak current controller for charging photoflash capacitor, an IGBT driver for igniting flash tube, and a voltage detector with open drain output to provide a cost effective photoflash solution. The photoflash capacitor charger ...
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RT9591 Spike Voltage @Switching Spike voltage V SW (10V/Div) I PRI (1A/Div) Time (250ns/Div) Figure 4 Swing Current @Switching V SW (20V/Div) I PRI (1A/Div) Time (1us/Div) Figure 5 4. Transformer Secondary Capacitance Any capacitance on the secondary can severely ...
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Input Average Current & Output Voltage Time (1s/Div) Figure 7 Adjustable Input Current The RT9591 simply adjusts peak primary current by a resistor R connecting to CS pin as shown in Function CS Block Diagram. R paralleled with internal 1MΩ ...
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RT9591 V BAT V DD 10uF Lower Charging Current (1V/Div) V BAT Input Average Current Output Voltage (100V/Div) Time (1s/Div) Figure 9 IGBT Driver Input Signal The slew rate of IGBT driver input DRVIN should be higher than 2.5V/μs for ...
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Outline Dimension Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 DS9591-07 August 2007 Preliminary SEE ...