BD5423AEFS ROHM Co. Ltd., BD5423AEFS Datasheet
BD5423AEFS
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BD5423AEFS Summary of contents
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... BD5423AEFS ●Overview BD5423AEFS is a 17W + 17W stereo class-D power amplifier IC, developed for space-saving and low heat-generation applications such as low-profile TV sets. The IC employs state-of-the-art Bipolar, CMOS, and DMOS (BCD) process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances ultimate level. With this technology, the IC has achieved high efficiency of 90% (10W + 10W output with 8Ω ...
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... BD5423AEFS ●Absolute Maximum Ratings A circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to prevent reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and reliability. The following values assume Ta =25℃. For latest values, refer to delivery specifications. ...
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... BD5423AEFS ●Electrical characteristic curves (Reference data) (1) Under Stereo Operation（R =8Ω） L 100 Vcc=12V R =8Ω L BW=20～20kHz 10 1 0.1 1kHz 0.01 0.001 0.01 0.1 OUTPUT POWER (W) Fig. 1 THD+N － Output power Vcc=12V R =8Ω Po=1W 15 L=33µH 10 C=0.47µF Cｇ=0.1µ 100 1000 FREQUENCY (Hz) Fig ...
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... BD5423AEFS ●Electrical characteristic curves (Reference data) – Continued 100 OUTPUT POWER (W/ch) Fig. 7 Efficiency - Output power 100 OUTPUT POWER (W/ch) Fig. 9 Efficiency - Output power 100 90 R =8Ω =8Ω L 無信号時 ...
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... BD5423AEFS ●Electrical characteristic curves (Reference data) – Continued MUTEX Pin 20 10V/div TM 5V/div Pin 26 2V/div Speaker Output 10msec/div Fig. 13 Wave form when Releasing Soft-mute VCCA VHOLD Pin 27 TM Pin 26 Speaker Output 20msec/div Fig. 15 Wave form on Instantaneous Power Interruption (20msec / div) Soft Clip ...
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... BD5423AEFS ●Electrical characteristic curves (Reference data) – Continued (2)Under Stereo Operation（R =6Ω） =6Ω L THD=10% fin=1kHz VCC (V) Fig. 18 Output power - Power supply voltage 100 OUTPUT POWER (W/ch) Fig. 19 Efficiency - Output power ...
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... BD5423AEFS ●Electrical characteristic curves (Reference data) – Continued (3) Under Stereo Operation（ =4Ω fin=1kHz THD=10 VCC (V) Fig. 23 Output power - Power supply voltage 100 OUTPUT POWER (W/ch) Fig. 24 Efficiency - Output power ...
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... Dimensions and Inscriptions Fig. 29 Outer Dimensions and Inscriptions of HTSSOP-A44 Package www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Top View DRI VER DRI VER 2P 2N DRI VER DRI VER 1P 1N Fig. 28 Pin Assignment Diagram BD5423AEFS 8/17 Technical Note Type Lot No. 2009.06 - Rev.A ...
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... BD5423AEFS ●Explanation of Pin Functions (Provided pin voltages are typical values.) No. Symbol Pin voltage 1 IN1 3.5V 44 IN2 2 PLMT1 3.5V 3 PLMT2 - 4 PLMT3 - 5 PLMT4 3.5V www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Pin description ch1 Analog signal input pin ch2 Analog signal input pin Input audio signal via a capacitor. ...
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... BD5423AEFS ●Explanation of Pin Functions (continued) No. Symbol Pin voltage 6 BSP1P - 7, 8 VCCP1P Vcc 9, 10 OUT1P Vcc～0V 11, 12 GNDP1 0V 13, 14 OUT1N Vcc～0V 15, 16 VCCP1N Vcc 17 BSP1N - WARNING ERROR L: 0V www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Pin description ch1 positive bootstrap pin Connect a capacitor ...
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... BD5423AEFS ●Explanation of Pin Functions (continued) No. Symbol Pin voltage 20 MUTEX - 21 OSC - ROSC 5. 0～5V www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Pin description Audio mute control pin H: Mute off L: Mute on N.C. pin Nothing is connected with IC internal circuit. Sampling clock signal input/output pin When using two or more sampling clocks, connect via a capacitor ...
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... BD5423AEFS ●Explanation of Pin Functions (continued) No. Symbol Pin voltage 27 VHOLD 0.68×Vcc 28 BSP2N - 29, 30 VCCP2N Vcc 31, 32 OUT2N Vcc～0V 33, 34 GNDP2 0V 35, 36 OUT2P Vcc～0V 37, 38 VCCP2P Vcc 39 BSP2P - 40 VCCA Vcc Vcc+35 41 FILP 12 www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Pin description ...
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... BD5423AEFS ●Explanation of Pin Functions (continued) No. Symbol Pin voltage 42 FILA 3.5V 43 GNDA 0V www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. Pin description Analog signal system bias pin Connect a capacitor. Analog system power supply pin 13/17 Technical Note Internal equalizing circuit 2009.06 - Rev.A ...
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... BD5423AEFS ●Application Circuit Diagram. ・Vcc=10V～16.5V GNDA VCCA C43 10μ 0.1μ 1μF 0.68μ 10μF R4 22kΩ 22kΩ 0.68μ 0.1μF GNDA GNDA Fig. 30 Circuit diagram under stereo operation with 4-Ω load www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved. ...
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... BD5423AEFS Table 1 BOM list for stereo operation with 4-Ω load No. Item Part Number Vendor 1 IC BD5423AEFS ROHM 2 C GRM219B31E684KA88D MURATA 2012 0805 3 C GRM188R11H104KA93 MURATA 1608 0603 4 C GRM31MB11H224KA01 MURATA 3216 1206 5 C 25ST225M3216 Rubycon 6 C 50ST105M3225 Rubycon 7 C GRM21BB31E335KA75 MURATA 2012 0805 ...
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... BD5423AEFS ●Notes for use Notes for use 1. About absolute maximum ratings If an applied voltage or an operating temperature exceeds an absolute maximum rating, it may cause destruction of a device. A result of destruction, whether it is short mode or open mode, is not predictable. Therefore, provide a physical safety measure such as fuse, against a special mode that may violate conditions of absolute maximum ratings. ...
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... BD5423AEFS ●Ordering part number Part No Part No. BD. 5423A HTSSOP-A44 18.5±0.1 (MAX 18.85 include BURR) (6.0) 4° 1PIN MARK 0.85 S 0.08 S 0.8 +0.05 0.37 -0.04 0.08 M www.rohm.com © 2009 ROHM Co., Ltd. All rights reserved Package EFS:HTSSOP-44 <Tape and Reel information> Tape Embossed carrier tape (with dry pack) + 6° ...
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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 ...