BD6522F-E2 Rohm Semiconductor, BD6522F-E2 Datasheet
BD6522F-E2
Specifications of BD6522F-E2
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BD6522F-E2 Summary of contents
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... Maximum output current Discharge circuit built in 4) Soft start control circuit built in 5) Under voltage lockout (UVLO) circuit built in 6) Thermal shutdown (Output off latching) 7) Reverse current flow blocking at switch off (only BD6522F) Applications Notebook PC, PC peripheral device, etc. Lineup Parameter ...
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... Turn On Rise Time Turn Off Delay Turn Off Fall Time Discharge Resistance UVLO Threshold Voltage UVLO Hysteresis Voltage Thermal Shutdown Threshold SSCTL Output Voltage ◎BD6522F(Unless otherwise specified 25℃, V Parameter On Resistance Operating Current Control Input Voltage Control Input Current Turn On Time Turn Off Time ...
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... ROHM Co., Ltd. All rights reserved. ◎BD6522F OUT C SS Fig.1 Measurement circuit ◎BD6522F T f 90% V OUT 50% 10 OFF V CTRL V L CTRL Fig.2 Timing diagram 3/16 Technical Note BD6522F VDDA OUTA VDDB OUTB SSCTL DISC RL CL CTRL VSS V CTRL 90% 10 OFF CTRL CTRL 2009.05 - Rev.A I OUT ...
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... BD6520F,BD6522F Typical characteristics ◎BD6520F ℃ SUPPLY VOLTAGE : V [V] DD Fig.3 On resistance 120 V = 5.0V DD 100 -40 - 100 AMBIENT TEMPERATURE : Ta [℃] Fig.6 Operating current (CTRL enable) 2 ℃ 2.0 Low to High 1.5 High to Low 1.0 0.5 0 SUPPLY VOLTAGE : V [V] DD Fig.9 CTRL input voltage 0 ℃ 0.3 0.2 ...
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... BD6520F,BD6522F 5. Ton 2 Tr Trd 1 0 -40 - 100 AMBIENT TEMPERATURE : Ta [℃] Fig.15 Turn On Rise time 500 ℃ 400 300 200 100 SUPPLY VOLTAGE : V [V] DD Fig.18 Switch discharge resistance 0 5.0V DD 0.2 0.1 0 -40 - 100 AMBIENT TEMPERATURE : Ta [ ℃ ] Fig.21 UVLO hysteresis voltage ℃ SUPPLY VOLTAGE : V ...
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... BD6520F,BD6522F ◎BD6522F ℃ SUPPLY VOLTAGE : V [V] DD Fig.26 ON resistance 120 V = 5.0V DD 100 -40 - 100 AMBIENT TEMPERATURE : Ta [℃] Fig.29 Operating current (CTRL enable) 2 ℃ 2.0 Low to High 1.5 High to Low 1.0 0.5 0 SUPPLY VOLTAGE : V [V] DD Fig.32 CTRL input voltage 0 5.0V DD 0.3 0.2 0.1 0.0 ...
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... BD6520F,BD6522F ℃ SUPPLY VOLTAGE : V [V] DD Fig.38 Turn Off time 500 V = 5.0V DD 400 300 200 100 0 -40 - AMBIENT TEMPERATURE : Ta [ ℃ ] Fig.41 Switch discharge resistance 100 V = 5.0V ℃ 10Ω 100 1000 10000 Css [pF] Fig.44 Turn On time (vs. Css 5. -40 - 100 AMBIENT TEMPERATURE : Ta [ ℃ ] Fig.47 SSCTL output voltage www.rohm.com © ...
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... OUT (2V/div.) TIME (500ms/div) Fig.57 UVLO (at VDD decrease) 8/16 Technical Note V CTRL (5V/div.) V OUT (5V/div.) I OUT (0.5A/div.) TIME (1ms/div.) Fig.50 Turn On Rise Time (BD6522F) V CTRL (5V/div.) CL=330uF Open 1000pF 4700pF I OUT (0.5A/div.) TIME (2ms/div.) Fig.53 Inrush current vs. Css (BD6522F) 2009.05 - Rev.A ...
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... BD6520F,BD6522F Block diagram, pin configuration, pin description (BD6520F) VDDA 1 VDDB 2 SSCTL 3 ＋ UVLO － Band Thermal Gap Shutdown CTRL 4 Pin No. Symbol 1,2 VDDA, VDDB 3 SSCTL 4 CTRL 5 VSS 6,7,8 OUTA, OUTB, OUTC www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Oscillator Charge ...
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... ROHM Co., Ltd. All rights reserved. Oscillator Charge Pump Fig.59 Block diagram(BD6522F) Switch input pin At use, connect each pin outside. Soft start setting pin Add external capacitor possible to delay switch On, Off time. Control input pin Switch On at High level, switch Off at Low level. Ground ...
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... Symbol Pin No. SSCTL 3 CTRL 4 6 DISC (BD6522F) 6 (BD6520F), OUT 7, 8 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Equivalent circuit BD6520F SSCTL CTRL OUT Fig.60 I/O circuit 11/16 Technical Note Equivalent circuit BD6522F SSCTL CTRL DISC OUT 2009.05 - Rev.A ...
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... In BD6520F, there is a parasitic diode between the drain and the source of switch MOSFET. Therefore, even when the switch is off, if the voltage of OUT is higher than that of VDD, current flows from OUT to VDD. In BD6522F, there is not this parasitic diode possible to prevent current from flowing reversely from OUT to VDD. ...
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... BD6520F,BD6522F Timing diagram CTRL V OUT Discharge circuit CTRL V OUT Discharge circuit ON Over temperature occurs CTRL V OUT Latch Release Discharge circuit www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ON OFF Fig.61 Normal operation V UVLOL OFF Fig.62 UVLO operation Over temperature Over temperature ...
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... SSCTL On/Off CTRL Fig.64 Power supply switch circuit (BD6520F) BD6522F Power Supply A VDDA VDDB Css SSCTL On/Off CTRL Fig.66 2 power supply changeover switch circuit (BD6522F) Thermal derating characteristic (SOP8) 600 500 400 300 200 100 0 0 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ...
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... BD6520F,BD6522F Cautions on use (1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc ...
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... BD6520F,BD6522F Ordering part number Part No. Part No. 6520 6522 SOP8 5.0±0.2 (MAX 5.35 include BURR) + 6° 4° −4° 0.595 0.17 S 1.27 0.42±0.1 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved Package F: SOP8 <Tape and Reel information> Tape Embossed carrier tape ...
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No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...