BD3504FVM-TR Rohm Semiconductor, BD3504FVM-TR Datasheet

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... BD3501FVM 1.5V (Fix) ○ ○ (Independent Setting) ○ ○ (Independent Setting) Hysterisis +1/-3mA 1/16 No.10030EAT29 BD3502FVM BD3504FVM 1.2V (Fix) Variable(0.65～2.5V) ○ ○ (Independent Setting) (Same Timer Latch) ○ ○ (Independent Setting) (Same NRCS) Detected at start-up only Hysterisis (set by external resistor) ...

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... Parameter Supply Voltage Drain Voltage(VIN) Enable Input Voltage Capacitor on NRCS Terminal Capacitor on SCP Terminal ★ No radiation-resistant design is adopted for the present product. ◎BD3504FVM Parameter Supply Voltage Drain Voltage Enable Input Voltage Capacitor in NRCS pin Output Voltage ★ No radiation-resistant design is adopted for the present product. ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Electrical characteristics (unless otherwise noted, Ta=25℃ VCC=5V Vin=3.3V Ven=3V) ◎BD3500FVM/BD3501FVM/BD3502FVM Parameter Bias Current Shut Down Mode Current Output Voltage 1 (BD3500FVM) Output Voltage 1 (BD3501FVM) Output Voltage 1 (BD3502FVM) Output Voltage 2 (BD3500FVM) Output Voltage 2 (BD3501FVM) Output Voltage 2 (BD3502FVM) Line Regulation Load Regulation ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Electrical characteristics (unless otherwise noted, Ta=25℃ VCC=5V VIN=3.3V Ven=3V. R1=R1'=∞Ω, R2=R2'=0Ω) ◎BD3504FVM Parameter Bias Current Shut Down Mode Current Feed Back Voltage 1 Feed Back Voltage 2 Output Voltage Line Regulation Load Regulation [Enable] High Level Enable Input Voltage ...

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... Vout(mV) Fig.5 VS Discharge Current VCC VIN EN VOUT (1.075V 出力) 140 Fig.8 Input Sequence 1 EN VIN EN VOUT Fig.11 Input Sequence 4 (Only BD3504FVM) 5/16 Technical Note 1.800 1.795 1.790 1.785 1.780 1.775 1.770 5.3 5.5 - Ta( ℃ ) Fig.3 Ta-Vo 21 ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM VOUT (1.075V 出力) IOUT (1A/div) Fig.13 Transient Response 3→0A(0.6A/µs)ΔV=20mV VOUT (BD3501FVM) IOUT (1A/div) Fig.16 Transient Response 0→3A(0.6A/µs) ΔV=42mV VOUT (BD3500FVM) IOUT (1A/div) Fig.19 Transient Response 3→0A(0.6A/µs) ΔV=26mV www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Block Diagram ◎BD3500FVM/BD3501FVM/BD3502FVM VCC VCC 4 Enabe EN Reference 8 Block Thermal Protection TSD ◎BD3504FVM VCC VCC 4 EN Enable Reference 3 Block Thermal Protection TSD NRCS www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. NRCS 1 NRCS UVLO1 UVLO2 VREF VREF TSD SCP UVLO1 UVLO2 ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Pin Configration and Pin Function ◎BD3500FVM/BD3501FVM/BD3502FVM ○Pin Configration NRCS 1 2 GND 3 SCP 4 VCC ◎BD3504FVM ○Pin Configration 1 NRCS 2 GND VCC www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ○Pin Function Pin Pin No. Name NRCS (Non Rush Current on Start up) time setup 2 GND ...

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... How to set NRCS terminal short protection Delay (BD3504FVM only) BD3504FVM has short protection (SCP) activated when output voltage becomes VOUT x 0.35 (typ.) or lower. The time when short protection is activated until latching takes place (TSCP) is determined by the following equation: Tscp = CNRCS × ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Application circuit Vcc C3 Ven C1 Vcc ●Directions for pattern layout of PCB ・Because a VIN input capacitor causes impedance to drop, mount it as close to the VIN terminal as possible and use thick wiring patterns. In the event that it causes the wire to come in contact with the inner-layer ground plane, use a plurality of through holes. ・ ...

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... ROHM Co., Ltd. All rights reserved. ■ BD350XFVM Evaluation Board Application Components ■ Part No U1 VIN 5 VIN VOUT 6 VFB Part TOP Layer BD3504FVM Evaluation Board Application Components ■ ■ GND Part No VTTS U1 R2’ VIN R1’ R1’ VOUT Part No R2’ ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●I/O EQUIVALENCE CIRCUIT ◎BD3500FVM/BD3501FVM/BD3502FVM Vcc Vcc Vcc NRCS Vcc Vcc GATE ◎BD3504FVM Vcc Vcc NRCS Vcc Vcc GATE www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved 12/16 Technical Note Vcc Vcc Vcc SCP Vcc Vcc VFB Vcc Vs Vcc VFB 2010.05 - Rev.A ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Notes for use 1. Absolute maximum ratings For the present product, thoroughgoing quality control is carried out, but in the event that applied voltage, working temperature range, and other absolute maximum rating are exceeded, the present product may be destroyed. Because it is unable to identify the short mode, open mode, etc., if any special mode is assumed, which exceeds the absolute maximum rating, physical safety measures are requested to be taken, such as fuses, etc ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM 10. Output capacitor (C5) Connect the output capacitor between Vo1, Vo2 terminals and GND terminal without fail in order to stabilize output voltage. The output capacitor has a role to compensate for the phase of loop gain and to reduce output voltage fluctuation when load is rapidly changed. When there is an insufficient capacity value, there is a possibility to cause oscillation, and when the equivalent serial resistance (ESR) of the capacitors is large, output voltage fluctuation is increased when load is rapidly changed. About 220 µ ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Power Dissipation 500 437.5mW 400 300 200 100 0 0 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 100℃ 100 Temperature Atmosphere : Ta(℃) 15/16 Technical Note Without heat sink. θj-a=286℃/W 125 150 2010.05 - Rev.A ...

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... BD3504FVM,BD3500FVM,BD3501FVM,BD3502FVM ●Ordering part number Part No. Part No. 3504 3500 3501 3502 MSOP8 2.9±0.1 (MAX 3.25 include BURR) + 6° 4° −4° 1PIN MARK 0.145 0.475 S +0.05 −0.04 0.22 0.08 S 0.65 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package FVM: MSOP8 < ...

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