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BD18341FV-ME2 数据表(PDF) 4 Page - Rohm |
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BD18341FV-ME2 数据表(HTML) 4 Page - Rohm |
4 / 39 page Datasheet Datasheet 4/35 BD18340FV-M BD18341FV-M ©2016 ROHM Co., Ltd. All rights reserved. www.rohm.co.jp TSZ22111・14・001 TSZ02201-0T1T0C700180-1-2 2016.04.21 Rev.002 Recommended Operating Conditions (Ta=-40°C to +125°C) Parameter Symbol Min Typ Max Unit Supply Voltage(Note1) (Note2) VIN 4.5 13 19 V CRTIMER Frequency Range fPWM 100 - 5000 Hz PWM Minimum Pulse Width(Note3) tMIN 10 - - µs (Note1) ASO should not be exceeded (Note2) At start-up time, please apply a voltage above 5V once. The value is the voltage range after the temporary rise to 5V. (Note3) At connecting the External PNP Tr.(2SAR573D(ROHM) ,1pcs), That is the same when the Pulse input to CRT terminal. Operating Conditions Parameter Symbol Min Max Unit The Capacitor connecting VIN Terminal1 CVIN1 1.0 - μF The Capacitor connecting VIN Terminal2 CVIN2(Note4) 0.047 - μF The Capacitor connecting VREG Terminal CVREG(Note5) 1.0 4.7 μF The Capacitor connecting LED Anode CLED 0.1 0.68 μF The Capacitor connecting CRT Terminal CCRT 0.01 0.22 μF The Resistor connecting CRT Terminal RCRT 0.1 50 kΩ The Resistor for setting LED Current LED RFB1, RFB2 (Note6) 0.8 6.5 Ω The Resistor for setting Disable LED Open Detection Voltage ROPM 25 55 kΩ The Resistor for setting DC Dimming RDCDIM 4.7 50 kΩ The Resistor for DCIN pull-down RDCIN - 10 kΩ The Capacitor for setting Disable LED Open Detection Time CD(Note5) 0.001 0.1 μF The Resistor for limiting Base Terminal Current RLIM See Features Description 5 Ω The External PNP Transistor Q1 (Note7) - (Note4) ROHM Recommended Value (0.1μF GCM188R11H104KA42 murata) (Note5) Ceramic capacitor recommended. Please setting the Disable LED Open Detection Time less than PWM minimum pulse width. (Note6) At connecting the External PNP Tr. (2SAR573D (ROHM), 1pcs) (Note7) For external PNP transistor, please use the recommended device 2SAR573D for this IC. While using non-recommended part device, validate the design on actual board. Please check hfe of the part to design base current limit resistor. (See Features Description, section 5). As for parasitic capacitance, please evaluate over shoot of ILED on actual board. (See Features Description, Section 8 -Evaluation example, ILED pulse width at PWM Dimming operation). |
类似零件编号 - BD18341FV-ME2 |
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类似说明 - BD18341FV-ME2 |
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