Datasheet Class-AB Speaker Amplifier Series 1.2 W Monaural Speaker Amplifier for Automotive BD783xxEFJ-M Series (Including products under development) General Description Key Specifications BD783xxEFJ-M Series are Class-AB monaural speaker Output Power 1.2 W (Typ) amplifiers designed for automotive. Class-AB amplifiers (VDD = 5 V, RL = 8 , THD+N = 1 %) have no requirements for care about EMI noise. Adopting Quiescent Current 2.5 mA (Typ) power package HTSOP-J8 achieves high output power. Shutdown Current 0.1 A (Typ) Low quiescent current can reduce battery consumption. Total Harmonic Distortion + Noise (Note 2) Shutdown current is also very low (0.1 A Typ) and pop (RL = 8 , f = 1 kHz) 0.05 % (Typ) (Note 2) noise level when switching to shutdown is very small, so Output Noise Voltage 15 V (Typ) RMS this device is suitable for applications in which the mode Voltage Gain 6.0 dB to 26.0 dB (Typ) often changes between shutdown state and active Operating Temperature Range -40 C to +105 C (Note 2) Characteristic of BD78306EFJ-M state. Package W (Typ) x D (Typ) x H (Max) Features (Note 1) HTSOP-J8 4.90 mm x 6.00 mm x 1.00 mm AEC-Q100 Qualified Pop Noise Reduction Function Shutdown Function Protection Functions - Over Current Protection - Thermal Shutdown - Under Voltage Lock Out (UVLO) Power Package with Thermal Pad HTSOP-J8 (Note 1) Grade2 Applications Automotive Instruments HTSOP-J8 Typical Application Circuit 1 8 SDB OUTN From System Control C 1 2 BIAS GND 7 0.47 F C 4 10 F C 2 Input 6 3 VDD Signal INP VDD 0.47 F C 3 4 5 INN OUTP 0.47 F Figure 1 Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays. www.rohm.com TSZ02201-0C1C0EC00760-1-2 2019 ROHM Co., Ltd. All rights reserved. 1/25 TSZ22111 14 001 19.Jul.2019 Rev.001 BD783xxEFJ-M Series (Including products under development) Pin Configuration (TOP VIEW) 1 8 OUTN SDB 2 7 BIAS GND EXP-PAD 3 6 VDD INP 4 5 OUTP INN Caution: VDD and GND pins adjoin each other. In case that these pins are shorted each other, it may make characteristics of power supply device worse, or it may damage power supply device. Considering this point, select power supply device which has protection functions as over current protection. Pin Description Pin No. Pin Name Function SDB 1 Shutdown 2 BIAS Bias INP 3 Positive differential input 4 INN Negative differential input 5 OUTP Positive output 6 VDD Power supply 7 GND Ground 8 OUTN Negative output - EXP-PAD Connect the EXP-PAD to Ground Control Pins Setting SDB pin Operating Mode High Active Low Shutdown Block Diagram 6 VDD Ri k Rf k Part Number Rf (Typ) (Typ) BD78306EFJ-M 90 90 Ri *1 BD78308EFJ-M 80 80 OUTP 5 INP 3 BD78310EFJ-M 70 110 Ri *1 BD78312EFJ-M 60 120 Rf *1 BD78314EFJ-M 50 130 Rf *1 BD78316EFJ-M 40 140 Ri *1 BD78318EFJ-M 36 144 OUTN 8 INN *1 BD78320EFJ-M 30 150 4 Ri *1 Over Current BD78322EFJ-M 24 156 Protection Rf *1 BD78324EFJ-M 20 160 Thermal Shutdown BIAS BD78326EFJ-M 16 164 2 Bias Under Voltage Lock Out *1 Under Development SDB GND 1 7 Figure 2 www.rohm.com TSZ02201-0C1C0EC00760-1-2 2019 ROHM Co., Ltd. All rights reserved. 2/25 TSZ22111 15 001 19.Jul.2019 Rev.001