lv4920h Sanyo Semiconductor Corporation, lv4920h Datasheet
lv4920h
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lv4920h Summary of contents
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... LV4920H Overview The LV4920H is a 2-channel BTL full-bridge driver for digital power amplifiers. It requires a PWM modulator IC in the previous stage. This power cell that takes in PWM signals as an input and is used to form a digital amplifier system for TVs, amusement equipment, and other such systems. ...
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... Output pin current Power Tr ON resistance *2 Turn ON delay time Turn OFF delay time Rise-up time Fall time Minimum output pulse range *2: Design guaranteed maximum ON resistance of power Tr (RdsON): 360mΩ. LV4920H Symbol Conditions V D max Externally applied voltage I O peak Per channel Vpup max ...
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... MCLK BCLK Audio data LRCLK SDATA LV4920H Symbol Conditions Po1 THD+N=10% Po2 V D =16V, THD+N=10% THD+N@1W Po=1W Vno S/N DNR 0.25 0.3 SANYO : HSOP36(375mil) PWM BD-mode PWM_A1 PWM_B1 PWM Modulator PWM_B2 PWM_A2 Ratings Unit min typ max 0.1 % µVrms 50 100 dB 100 dB LV4920H No.A0989-3/12 ...
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... POWER SUPPLY 4 10 GND NC5 PWM_B2 PWM_RECEIVER 4 13 NC6 4 14 PWM_A2 4 15 NC7 PWM_RECEIVER NOD_THERM NOD_OUTSHDN 4 18 NC8 LV4920H LV4920H OUTPUTSTAGE CH1+ CONTROL DELAY OUTPUTSTAGE CH1- THERMAL SEQUENCE OVER CURRENT OUTPUTSTAGE CH2- CONTROL DELAY OUTPUTSTAGE CH2+ 36 PVD1 35 PVD1 34 ...
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... Pin Functions Pin No Pin name 1 STBY 2 NC1 3 MUTE 4 NC2 5 PWM_A1 6 NC3 7 PWM_B1 8 NC4 9 VREG5 LV4920H I/O Pin explanation I Standby mode control - Non connection I Muting control - Non connection I PWM input (plus input) of OUT_CH1_P - Non connection I PWM input (negative input) of OUT_CH1_N - Non connection O Smoothing capacitor connection pin for internal 5V power supply ...
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... PWM_B2 13 NC6 14 PWM_A2 15 NC7 16 NOD_THERM 17 NOD_OUTSHDN 18 NC8 19 PVD2 20 PVD2 21 OUT_CH2_P LV4920H I/O Pin explanation - Analog ground - Non connection I PWM input (negative input) of OUT_CH2_N - Non connection I PWM input (plus input) of OUT_CH2_P - Non connection O Thermal detector circuit for output (N-ch open drain) O Output shutdown monitor output ...
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... PGND1 29 PGND1 30 OUT_CH1_N 31 BOOT_CH1_N BOOT_CH1_P 34 OUT_CH1_P 35 PVD1 36 PVD1 LV4920H I/O Pin explanation I/O Bootstrap I/O pin, channel 2 power supply high side O Internal power supply decoupling capacitor connection I/O Bootstrap I/O pin, channel 2 power supply low side O Channel 2 low side output - Channel 2 power system ground - ...
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... The NOD_OUTSHDNB (Nch open drain) output signal is generated (Nch open drain output is turned on) when output is shut down (except when the overcurrent protection circuit is activated). This operating condition is established when either one of the following conditions occurs: (1) Thermal shutdown circuit is activated. (2) Low power voltage protection circuit is activated. (3) MUTEB set low (all outputs muted) LV4920H No.A0989-8/12 ...
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... The power shut-down sequence must be controlled by timing as shown below (PWM=BD mode) to minimize impulse noise. 3. Protection Circuits The LV4920H has full complement of built-in protection circuits: overcurrent protection, thermal protection, and low power supply voltage protection circuits. 3.1 Overcurrent protection circuit The overcurrent protection circuit protects the output transistors by detecting current that exceeds a predetermined value due to load shorting, shorting to power, shorting to ground, etc ...
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... NOD_THERM at pin 16 and NOD_OUTSHDN at pin 17 are outputs of N-ch open-drain type. When CPU or other device monitors these outputs necessary to connect pull-up resistors to a power supply for the CPU and other device. The pull-up resistors are not required if they are not to be used (not monitored). LV4920H LV4920H(HSOP36) OUTPUTSTAGE PWM_RECEIVER CH1+ ...
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... RL=8 Ω , STBY B=H, MUTEB [V] THD+N - Frequency 1 0.1 0.01 10 100 1000 Frequency [Hz] Frequency - Response 10 0 -10 VD=13V RL=8 Ω Po=1W/ch -20 10 100 1000 Frequency [Hz] LV4920H 50 RL=8 Ω 40 STBY B=H , MUTEB in=1kHz 20 THD+N=10% RL=8 Ω 16 2CH-Driv e AES17 ...
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... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of December, 2007. Specifications and information herein are subject to change without notice. LV4920H 100 80 RL=8 Ω 60 ...