BD9536FV ROHM Co. Ltd., BD9536FV Datasheet
BD9536FV
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BD9536FV Summary of contents
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... Regulators for Desktop PC BD9536FV Description BD9536FV is a 2ch switching regulator controller that can generate low output voltages (0.7V to 5.5V) from a wide input voltage range (7.5V to 15V). High efficiency for the switching regulator can be achieved due to its internal N-MOSFET power transistor. The IC also incorporates a new technology called H ultra-high transient response against changes in load ...
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Absolute Ratings (Ta=25℃) Parameter Input Voltage BOOT Voltage BOOT-SW Voltage HG-SW Voltage LG Voltage Output Voltage Output Feedback Voltage FS Voltage 5VReg Voltage Current Limit Setting Voltage Logic Input Voltage Power dissipation 1 Power dissipation 2 Operating Temperature Range ...
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CHARACTERISTICS (Unless otherwise noted, Ta=25℃, V Parameter [General] VIN Bias Current VIN Standby Current EN Low Voltage 1,2 EN High Voltage 1,2 EN Bias Current 1,2 [5V Linear Regulator] 5VReg Standby Voltage 5VReg Output Voltage Maximum Current [Under-Voltage Lock-Out] ...
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... CTL1 OUT 14 CTL2 V 2 OUT 13 REF2 11 12 FB2 GND ●Pin Configuration CTL1 OUT FB1 3 REF1 LIM FS1 6 BD9536FV GND 7 SCP 8 FS2 LIM REF2 11 FB2 OUT CTL2 FS1 5VReg TSD ...
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Data V 1 OUT (50mV/div) REF1 (50mV/div) CTL1 (5V/div) CTL2 (5V/div) (100μs/div) Fig.1 DAC switch1 V 1 OUT (50mV/div) REF1 (50mV/div) CTL1 (5V/div) CTL2 (5V/div) (100μs/div) Fig.4 DAC switch OUT (1V/div OUT (1V/div) HG1 ...
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Data V 2 OUT (50mV/div) HG2/LG2 (10V/div OUT (5A/div) (10μs/div) Fig. transient responce OUT 6.0 5.5 5.0 4.5 4.0 - [℃] Fig. VREG5V 0.60 0.56 0.52 0.48 0.44 ...
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... SPCAP C23 0.1uF C24 - D1 RB083L-20 D2 RB083L-20 L1 3.9uH B966AS L2 1.6uH 962BS M1 SP8K4 (Q1) M2 SP8K4 (Q2) M3 RSS100N03 M4 RSS100N03 U1 - BD9536FV 1.8V C16 C17 1.2V C23 C24 Company KYOCERA KYOCERA KYOCERA KYOCERA KYOCERA SANYO KYOCERA KYOCERA KYOCERA KYOCERA KYOCERA KYOCERA Panasonic KYOCERA KYOCERA ROHM ROHM TOKO ...
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Descriptions ・EN1 (28 Pin) / EN2 (15 Pin) When the input voltage on the EN pin reaches at least 2.2 V, the switching regulator becomes active. At voltages less than 0.3 V, the switching regulator becomes inactive, and the ...
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... Operation The BD9536FV is a 2ch switching regulator controller incorporating ROHM’s proprietary H When VOUT drops due to a rapid load change, the system quickly restores VOUT by extending the TON time interval Reg control (Normal operation) FB REF HG LG (VOUT drops due to a rapid load change) ...
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Chart ・Over current protection circuit ・Timer Latch Type Short Circuit Protection REF×0 SCP SCP EN/UVLO ・Output Over Voltage Protection REF×1.2 V OUT HG LG Switching SCP During normal operation, ...
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Component Selection 1. Inductor (L) selection ΔIL VIN IL HG VOUT Output Ripple Current ※Passing a current larger than the inductor’s rated current will cause magnetic saturation in the inductor and decrease system efficiency. When ...
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MOSFET Selection V IN main switch V OUT L Co synchronous switch 5. Determining Detection Resistance PGND R ILIM Main MOSFET power dissipation is computed as follows: Pmain = ...
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Setting frequency 【1,2ch】 2500 from top VIN=7.5V 12V 15V 2000 1500 1000 500 100 RFS [k Ω Output Voltage Setting The IC will try to maintain output voltage such that V However, the actual ...
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Equivalent Circuits 16pin, 27pin (BOOT1/ 5VReg 4pin, 11pin (REF1/2) 26pin, 17pin (HG1/2) BOOT BOOT SW 15pin, 28pin (EN1/2) 20pin (5VReg) BOOT 1/2 25pin, 18pin (SW1/2) BOOT HG 14/17 6pin, 9pin (FS1/2) 1pin, 14pin (CTL1/2) 24pin, 19pin (LG1/2) ...
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... It is not designed to protect the IC from damage or guarantee its operation. ICs should not be used after this function has activated applications where the operation of this circuit is assumed. BD9536FV (10) Testing on application boards When testing the application board, connecting a capacitor directly to a low-impedance pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’ ...
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... This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. PN junctions are formed at the intersection of these P layers with the N layers of other elements, creating parasitic diodes and/or transistors. For example (refer to the figure below): When GND > Pin A and GND > Pin B, the PN junction operates as a parasitic diode ...
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Type Designations (Selections) for Ordering Product name ・ BD9536 SSOP-B28 <Dimension> 10.0 ± 0 0.15 ± 0.1 0.1 0.65 0.22 ± 0 Package type ・FV : SSOP-B28 <Tape ...
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Appendix 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 ...