BD78306EFJ-ME2

Datasheet Class-AB Speaker Amplifier Series 2.8 W High Power Monaural Speaker Amplifier for Automotive BD783xxEFJ-M BD783xxUEFJ-M Series General Description Key Specifications BD783xxEFJ-M, BD783xxUEFJ-M Series are Class-AB monaural speaker amplifiers designed for automotive. Class-AB amplifiers have no requirements for care about EMI noise. Adopting power package HTSOP-J8 achieves high output power. Low quiescent current can reduce battery consumption. Shutdown current is also very low (0.1 µA Typ) and pop noise level when switching to shutdown is very small, so this device is suitable for applications in which the mode often changes between “shutdown state” and “active state”. ◼ ◼ ◼ ◼ ◼ ◼ ◼ Features ◼ ◼ ◼ ◼ ◼ Output Power 1.2 W (Typ) (VDD = 5 V, RL = 8 Ω, THD+N = 1 %) Output Power 2.8 W (Typ) (VDD = 5 V, RL = 4 Ω, THD+N = 10 %) Quiescent Current 2.5 mA (Typ) Shutdown Current 0.1 µA (Typ) Total Harmonic Distortion + Noise (RL = 8 Ω, f = 1 kHz) 0.05 % (Typ)(Note 2) Output Noise Voltage 15 μVRMS (Typ)(Note 2) Voltage Gain 6.0 dB to 26.0 dB (Typ) Operating Temperature Range -40 ºC to +105 ºC (Note 2) Characteristic of BD78306EFJ-M AEC-Q100 Qualified(Note 1) 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 Package W (Typ) x D (Typ) x H (Max) 4.90 mm x 6.00 mm x 1.00 mm HTSOP-J8 (Note 1) Grade2 Applications ◼ Automotive Instruments HTSOP-J8 Typical Application Circuit 1 SDB OUTN 8 2 BIAS GND 7 From System Control C1 0.47 µF Input Signal C4 10 µF C2 3 INP VDD 6 4 INN OUTP 5 VDD 0.47 µF C3 0.47 µF Figure 1 〇Product structure : Silicon integrated circuit www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001 〇This product has no designed protection against radioactive rays. 1/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Pin Configuration (TOP VIEW) SDB 1 8 OUTN BIAS 2 7 GND INP 3 6 VDD INN 4 5 OUTP EXP-PAD 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 1 SDB Shutdown Function 2 BIAS Bias 3 INP Positive differential input 4 INN Negative differential input 5 OUTP Positive output 6 VDD Power supply 7 GND Ground 8 OUTN - EXP-PAD Negative output Connect the EXP-PAD to Ground Control Pin’s Setting SDB pin Operating Mode High Active Low Shutdown Block Diagram 6 VDD Part Number Rf BD78306EFJ-M Ri OUTP 3 INP 5 Ri BD78326EFJ-M Rf BD78326UEFJ-M Ri OUTN INN Ri Rf 2 BIAS BD78310EFJ-M BD78310UEFJ-M Rf 4 BD78306UEFJ-M Ri[kΩ] (Typ) Rf[kΩ] (Typ) 90 90 70 110 16 164 8 Over Current Pro tection Thermal Shu tdo wn Bias SDB 1 GND Under Vol tage Lock O ut 7 Figure 2 www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 2/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Absolute Maximum Ratings (Ta = 25 °C) Parameter Symbol Rating Unit VDDmax 7.0 V Input Voltage Vin -0.3 to VDD+0.3 V Storage Temperature Range Tstg -55 to +150 °C Tjmax 150 °C Supply Voltage Maximum Junction Temperature Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. In case of exceeding this absolute maximum rating, design a PCB with thermal resistance taken into consideration by increasing board size and copper area so as not to exceed the maximum junction temperature rating. Thermal Resistance(Note 1) Parameter Symbol Thermal Resistance (Typ) Unit 1s(Note 3) 2s2p(Note 4) θJA 149.4 39.8 °C/W ΨJT 11.0 9.0 °C/W HTSOP-J8 Junction to Ambient Junction to Top Characterization Parameter(Note 2) (Note 1) Based on JESD51-2A (Still-Air), using a BD78326EFJ-M Chip. (Note 2) The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside surface of the component package. (Note 3) Using a PCB board based on JESD51-3. (Note 4) Using a PCB board based on JESD51-5, 7. Layer Number of Measurement Board Single Material Board Size FR-4 114.3 mm x 76.2 mm x 1.57 mmt Top Copper Pattern Thickness Footprints and Traces 70 μm Layer Number of Measurement Board 4 Layers Material Board Size FR-4 114.3 mm x 76.2 mm x 1.6 mmt Top 2 Internal Layers Thermal Via(Note 5) Pitch Diameter 1.20 mm Φ0.30 mm Bottom Copper Pattern Thickness Copper Pattern Thickness Copper Pattern Thickness Footprints and Traces 70 μm 74.2 mm x 74.2 mm 35 μm 74.2 mm x 74.2 mm 70 μm (Note 5) This thermal via connects with the copper pattern of all layers. Use a thermal design that has sufficient margin in consideration of power dissipation under actual operating conditions. This IC exposes its frame at the backside of package. Note that this part is assumed to be used after providing heat dissipation treatment to improve heat dissipation efficiency. Try to put heat dissipation pattern as wide as possible not only on the board surface but also on the backside. Under the insufficient heat dissipation and excessive large signal input condition, power dissipation (Pdiss) exceeds maximum power dissipation (Pd) and thermal shutdown function may operate. Thermal design should be considered so that Pdiss is lower than Pd. Reference data of Pdiss is listed on P.7. (Tjmax : Maximum Junction Temperature = 150 °C, Ta : Operating Ambient Temperature[°C], θja : Package Thermal Resistance[°C/W]) Power dissipation: 𝑃𝑑 = (𝑇𝑗𝑚𝑎𝑥 − 𝑇𝑎) / 𝜃𝑗𝑎 [W] This IC has thermal shutdown function. Thermal shutdown operates when Tj (junction temperature, which is assumed to be same as chip temperature) rises over about 180 °C (Typ) and be released when Tj fall about 160 °C (Typ) or less. Thermal shutdown is designed to protect the IC from temperature condition that exceeds Tjmax = 150 °C, not to protect or warrant application set. Note that device reliability is affected if it is used under temperature thermal shutdown operates. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 3/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Recommended Operating Conditions Parameter Symbol Min Typ Max Unit Operating Supply Voltage VDD 4.0 5.0 5.5 V Operating Temperature Topr -40 +25 +105 °C RL 3.2 8.0 38.4 Ω Load Resistance Caution: Operating supply voltage and operating temperature are the ranges in which the IC is available for basic operation. (Basic operation means that the IC operates without emitting unexpected noise or stopping signal.) Characteristics and rating are not warranted in the whole operating supply voltage and operating temperature. Electrical Characteristics 1 (Unless otherwise specified Ta = -40 °C to +105 °C, VDD = 5.0 V, f = 1 kHz, RL = 8 Ω, BTL(Note 1), Active) Parameter Symbol Quiescent Current ICC Min - Shutdown Current ISD - Input Impedance ZIN Limits Typ 2.5 Max 6.0 0.1 25.0 Unit mA No load Shutdown SDB = Low µA VOFS ZIN x0.4 -30 High Level VIH 2.0 - VDD V Low Level VIL 0 - 0.3 V Detection VUVLO_DET - 3.43 3.80 V Release VUVLO_REL - 3.58 3.95 V Output Offset Voltage Conditions kΩ Refer to the table below 0 ZIN x1.6 +30 mV OUTP-OUTN ZIN Control Pin (SDB) Input Voltage Under Voltage Lock Out (UVLO) Threshold Supply Voltage (Note 1) "BTL" means the state that RL is connected between the OUTP pin (pin5) and the OUTN pin (pin8). Part Number BD78306EFJ-M BD78306UEFJ-M BD78310EFJ-M BD78310UEFJ-M BD78326EFJ-M BD78326UEFJ-M ZIN[kΩ] (Typ) 45 35 8 Electrical Characteristics 2 (Unless otherwise specified Ta = 25 °C, VDD = 5.0 V, f = 1 kHz, RL = 8 Ω, BTL, Active) Min Limits Typ Max PO 0.9 1.2 1.6 W POMAX - 1.6 - W THD+N - - 0.5 % GV GV - 1 GV GV + 1 dB Shutdown Attenuation ATTSD - -90 -80 dB Power Supply Rejection Ratio PSRR - -60 -40 dB VNO - - 100 µVRMS Parameter Rated Output Power(Note 2) Maximum Output Power Total Harmonic Distortion + Noise Voltage Gain(Note 2) Output Noise Voltage Symbol Unit Conditions THD+N = 1 %, BW = 400 Hz to 30 kHz Continuous output time 60 s THD+N = 10 %, BW = 400 Hz to 30 kHz Continuous output time 90 s PO = 1 W BW = 400 Hz to 30 kHz PO = 0.5 W GV = 6 dB to 26 dB Vin = 0.1 VRMS BW = 400 Hz to 30 kHz Vripple = 0.2 VP-P, C1 = 0.47 µF BW = A-Weight C1 = 0.47 µF BW = A-Weight (Note 2) The typical performance of device is shown Output Power and Voltage Gain. It largely depends on the board layout, parts, and power supply. The typical values are measured with the device and parts mounting on surface of ROHM’s board directly and soldering thermal pad backside of package to top layer cupper pattern of the board. This IC is applicable to only dynamic speaker, not to other loads. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 4/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Typical Performance Curves 2.0 4.0 RL = 8 Ω SDB = 0 V Shutdown Current : ISD [µA] Quiescent Current : ICC [mA] RL = No Load 3.0 VUVLO_DET 2.0 VUVLO_REL 1.0 1.5 1.0 0.5 0.0 0.0 3 4 5 6 0 7 1 VDD = 5 V RL = 8 Ω 1 0.1 0.01 f = 100 Hz (30 kHz LPF) f = 1 kHz (BW = 400 Hz to 30 kHz) f = 10 kHz (BW = 400 Hz to 80 kHz) 0.1 1 10 Output Power : PO [W] 5 6 7 BD78326EFJ-M 10 1 0.1 VDD = 5 V RL = 8 Ω 0.01 f = 100 Hz (30 kHz LPF) f = 1 kHz (BW = 400 Hz to 30 kHz) f = 10 kHz (BW = 400 Hz to 80 kHz) 0.001 0.001 0.01 0.1 1 10 Output Power : PO [W] Figure 6. Total Harmonic Distortion + Noise vs Output Power Figure 5. Total Harmonic Distortion + Noise vs Output Power www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 Total Harmonic Distortion + Noise : THD+N [%] Total Harmonic Distortion + Noise : THD+N [%] BD78306EFJ-M 0.01 4 Figure 4. Shutdown Current vs Supply Voltage Figure 3. Quiescent Current vs Supply Voltage 0.001 0.001 3 Supply Voltage : VDD [V] Supply Voltage : VDD [V] 10 2 5/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series 10 Total Harmonic Distortion + Noise : THD+N [%] Total Harmonic Distortion + Noise : THD+N [%] Typical Performance Curves – continued VDD = 5 V RL = 8 Ω f = 1 kHz BW = 400 Hz to 30 kHz BD78326EFJ-M 1 0.1 BD78306EFJ-M BD78310EFJ-M 0.01 0.001 10 1 0.1 BD78306EFJ-M 0.01 BD78310EFJ-M 0.001 0.01 0.1 1 10 10 Figure 7. Total Harmonic Distortion + Noise vs Output Power 1k 10k 100k Figure 8. Total Harmonic Distortion + Noise vs Frequency 2.0 VDD = 5 V RL = 8 Ω PO = 0.5 W BD78326EFJ-M THD+N = 1 % 1.8 THD+N = 10 % Output Power : PO [W] Voltage Gain : GV [dB] 100 Frequency [Hz] Output Power : PO [W] 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 BD78326EFJ-M VDD = 5 V PO = 1 W RL = 8 Ω 80 kHz LPF BD78310EFJ-M 1.6 1.4 1.2 1.0 RL = 8 Ω f = 1 kHz 0.8 BD78306EFJ-M 10 100 1k 10k 100k 4.0 4.5 5.0 5.5 Supply Voltage : VDD [V] Frequency [Hz] Figure 9. Voltage Gain vs Frequency www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 0.6 Figure 10. Output Power vs Supply Voltage 6/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Typical Performance Curves - continued 4.0 0.8 3.0 0.6 Output Power : PO [W] Power Dissipation : Pdiss [W] VDD = 5 V f = 1 kHz 0.4 0.2 THD+N = 1 % THD+N = 10 % 2.0 1.0 VDD = 5 V RL = 8 Ω 0.0 0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 8 16 24 32 Load Resistor : RL [Ω] Output Power : PO [W] Figure 12. Output Power vs Load Resistor Figure 11. Power Dissipation vs Output Power 0 0 Shutdown Attenuation : ATTSD [dB] -20 -30 VDD = 5 V RL = 8 Ω Vripple = 0.2 VP-P Power Supply Rejection Ratio : PSRR [dB] VDD = 5 V RL = 8 Ω Vin = 0.1 VRMS SDB = 0 V 30 kHz LPF -10 -10 -20 -30 -40 -50 -40 -60 -70 -80 -50 BD78326EFJ-M -60 BD78306EFJ-M -70 -90 -100 10 100 1k 10k 100k 10 100 1k 10k 100k Frequency [Hz] Frequency [Hz] Figure 13. Shutdown Attenuation vs Frequency www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 -80 Figure 14. Power Supply Rejection Ratio vs Frequency 7/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Timing Chart Power on/power down sequences of the VDD pin and the SDB pin are shown. Follow the sequences below when power on and power down. 1. Power on sequence (1) Start up voltage of the VDD pin and the SDB pin in order V (1) Start up the VDD pin voltage to 4 V or more. VDD t V SDB VIH (2) Start up the SDB pin voltage from V IL to VIH. 2.0 V 0.3 V t VIL t1 t2 V t2-t1≤200 μs BIAS VDD/2 VDD/2 × 90 % t t3 V (Maximum Turn On Time) = t 3-t2 = 540 ms C1 = 0.47 μF t4-t3≥0 s INP Start input signal VDD/2 t4 t V OUTP VDD/2 t V OUTN VDD/2 t V BTL (OUTP-OUTN) t Figure 15. Power On Sequence Caution: Start to input signal after waiting maximum Turn On Time 540 ms (C1 = 0.47 μF) after setting the SDB pin voltage high. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 8/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Timing Chart – continued (2) Start up voltage of the VDD pin and the SDB pin simultaneously V Start up the VDD pin and the SDB pin voltage simultaneously from 0.8 V or less to 4.0 V or more. VDD,SDB 4.0 V 0.8 V t0 V t t1 200 μs≤t1-t0≤1 s BIAS Turn On Time t2-t0 depends on time period t1-t0 in which the VDD pin and the SDB pin voltage are started up. t1-t0 t2-t0 200 µ s 200 ms 1s 540 ms (Max) 600 ms (Max) 1.35 s (Max) VDD/2 VDD/2 × 90 % V t t2 (Turn On Time）= t2-t0 C1 = 0.47 μF INP t3-t2≥0 s Start input signal VDD/2 t t3 V OUTP VDD/2 t V When the VDD pin and the SDB pin voltage are started up simultaneously, Under Voltage Lock Out is released at VDD = 3.95 V (Max) and outputs are started up. OUTN VDD/2 t BTL (OUTPOUTN) V t Caution: Start up waveforms in the figure above, are described in case the VDD pin and the SDB pin voltage are started up from 0 V to 5 V in time period of 300 ms as an example. Figure 16. Power On Sequence Turn On Time t2 - t0 (Max) [ms] 1400 1200 1000 800 600 400 200 0 0 200 400 600 800 1000 t1 - t0 [ms] Figure 17. Turn On Time t2 – t0 (Max) vs t1 - t0 Caution: Start to input signal after waiting maximum Turn On Time after setting the VDD pin and the SDB pin voltage high. Turn On Time depends on time period in which the VDD pin and the SDB pin voltage are started up. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 9/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Timing Chart – continued 2. Power down sequence (1) Turn down voltage of the SDB pin and the VDD pin in order V (2)Turn down the VDD pin voltage. VDD t5 V SDB t (1)Turn down the SDB pin voltage to VIL after input signal is stopped. VIH t5-t4≥0 s 2.0 V 0.3 V t1 V t2 t3 t VIL t3-t2≤200 μs BIAS VDD/2 VDD/2 × 10 % t4 t1-t0≥0 s V t (Maximum Turn Off Time) = t4-t3 = 660 ms C1 = 0.47 μF INP Stop input signal VDD/2 t t0 V OUTP VDD/2 t V OUTN VDD/2 t V BTL (OUTP-OUTN) t Figure 18. Power Down Sequence Caution: Turn down the VDD pin voltage after waiting maximum Turn Off Time 660 ms (C1 = 0.47 μF) after setting the SDB pin voltage low. Output waveform may be clipped if signal is still input after Turn Off starts. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 10/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Timing Chart – continued (2) Turn down voltage of the VDD pin and the SDB pin simultaneously VDD, SDB 4.0 V Turn down the VDD pin and the SDB pin voltage simultaneously to 0.8 V or less. Caution : Unless the VDD pin and the SDB pin voltage are turned down 0.8 V or less, the state Over Current Protection is started may not be released. 0.8 V t1 t2 t t3 200 μs≤t3-t2≤60 s BIAS VDD/2 t t1-t0≥0 s INP Stop input signal t VDD/2 t0 OUTP VDD/2 t When the VDD pin and the SDB pin voltage are turned down simultaneously, Under Voltage Lock Out starts at VDD = 3.80 V (Max) and outputs are pulled down by 10 kΩ. OUTN VDD/2 t BTL (OUTP-OUTN) t Caution: Turn down waveforms in the figure above, are described in case the VDD pin and the SDB pin voltage are turned down from 5 V to 0 V in time period of 300 ms as an example. Figure 19. Power Down Sequence www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 11/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Application Examples VDD C4 10 µＦ 6 VDD Input Signal C2 0.47 µＦ OUTP INP 3 C3 0.47 µＦ OUTN INN 4 5 8 Over Current Pro tection C1 0.47 µＦ Thermal Shu tdo wn BIAS 2 Bias SDB Under Vol tage Lock O ut GND 7 1 From System Control Figure 20. Single-ended Input VDD C4 10 µＦ 6 VDD Input Signal Input Signal C2 0.47 µＦ OUTP INP 3 C3 0.47 µＦ OUTN 4 INN 5 8 Over Current Pro tection C1 0.47 µＦ 2 Thermal Shu tdo wn BIAS Bias SDB GND Under Vol tage Lock O ut 7 1 From System Control Figure 21. Differential Input Parts Capacitor Parts Symbol C1, C2, C3 C4 www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 Value 0.47 µF 10 µF Manufacturer Product No. MURATA GCM188R71E474KA64 MURATA GRT188C81C106ME13 (This is only example of components externally connected.) 12/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Selection of Components Externally Connected 1. Input Coupling Capacitors (C2, C3) The frequency characteristic of input composes high pass filter (Figure 22. HPF) by input impedance ZIN and input coupling capacitor C2, C3 (= CIN). Cut off frequency fC is determined in following equation, set CIN considering it. 𝑓𝐶 = 1 2𝜋×𝑍𝐼𝑁 ×𝐶𝐼𝑁 [Hz] In case that ZIN = 45 kΩ and CIN = 0.47 µF, fC is 7.5 Hz (Typ). GV GV -3 dB fC Figure 22. HPF The capacitance of C2 and C3 should be the same at the INP and INN pins. If the capacitance is different, audio characteristics such as THD+N may get worse and pop noise may be large. 2. Power Supply Decoupling Capacitor (C4) Power supply decoupling capacitor influences audio characteristics such as THD+N. Locate low ESR capacitor close to the VDD pin. Capacitance of C4 should be 10 µF or more. 3. The BIAS pin Capacitor (C1) The BIAS pin capacitor influences audio characteristic such as PSRR and THD+N. Locate low ESR capacitor close to the BIAS pin. Determine capacitance of C1 included in the range below, including variation and temperature characteristic also. Turn On Time and Turn Off Time are also determined by capacitance of the BIAS pin capacitor. Refer to the following section "Turn On and Turn Off". Capacitance C1 Min Typ Max 0.35 µF 0.47 µF 0.59 µF www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 13/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Turn On and Turn Off This IC has built-in circuit controls transition time of the OUTP pin and the OUTN pin when the operation mode is switched between active (SDB = High) and shutdown (SDB = Low). It achieves reducing pop noise. SDB 5 V/div SDB 5 V/div OUTP 1 V/div OUTN 1 V/div OUTP 1 V/div OUTN 1 V/div OUTP - OUTN 5 V/div OUTP - OUTN 5 V/div Turn Off Time Turn On Time Figure 23. Turn On Waveform Figure 24. Turn Off Waveform Following table shows Turn On Time and Turn Off Time with C1 = 0.47 µF. C1 0.47 µF Turn On Time 270 ms (Typ) 540 ms (Max) Turn Off Time 330 ms (Typ) 660 ms (Max) Turn On Time is defined as the time until the BIAS pin voltage rises to 90 % of VDD/2 after the SDB pin voltage is Low to High. Turn Off Time is defined as the time until the BIAS pin voltage falls to 10 % of VDD/2 after the SDB pin voltage is High to Low. Turn On Time and Turn Off Time may vary from typical value as the table above. Maximum value above is calculated assuming that variation of resistors in IC: ±60 % (-40 °C to +105 °C), accuracy of C1: ±25 % (including variation and temperature characteristic). www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 14/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Protection Functions This IC has protection functions that detect several kinds of abnormal conditions and protect itself. Protection Functions Detection and Release Condition State of Output Pins Detection The OUTP pin or the OUTN pin is shorted to the VDD pin / the GND pin. Signal Output stopped and Latched to High-Z Release Over Current Protection is released after setting SDB to Low and waiting Turn Off Time. After that, the IC becomes normal operation state by setting the SDB pin to High. Signal Output available Detection Tj : 180 °C (Typ) or more Signal Output stopped and Pulled down by 10 kΩ (Typ) Release Tj : 160 °C (Typ) or less (released automatically) Signal Output available Detection VDD : 3.43 V (Typ) / 3.80 V (Max) or less Ta = -40 °C to +105 °C Signal Output stopped and Pulled down by 10 kΩ (Typ) Release VDD : 3.58 V (Typ) / 3.95 V (Max) or more Ta = -40 °C to +105 °C (released automatically) Signal Output available Over Current Protection Thermal Shutdown Under Voltage Lock Out www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 15/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Protection Functions - continued 1. Over Current Protection (1) Over Current Protection (Short to the VDD pin) In case that the OUTP pin or the OUTN pin is shorted to the VDD pin, Over Current Protection starts to stop output signal and latch output pins to High-Z. Once Over Current Protection is started, the latch state is not released automatically even if the OUTP pin and the OUTN pin are not shorted to the VDD pin. Over Current Protection is released by shutdown. Detection Release The OUTP pin or the OUTN pin is shorted to the VDD pin. Over Current Protection is released after setting the SDB pin to Low and waiting Turn Off Time (660 ms Max). After that, it is possible that the IC outputs signal by setting the SDB pin to High. The OUTP pin or the OUTN pin is shorted to the VDD pin V The OUTP pin and the OUTN pin are not shorted to the VDD pin The voltage of the OUTP pin and the OUTN pin returns to bias voltage (VDD/2),but signal output is still stopped. OUTP VDD/2 t Signal Output is stopped (Over Current Protection) V Over Current Protection is released OUTN VDD/2 t Signal Output is stopped Over Current Protection is released (Over Current Protection) V BTL (OUTP-OUTN) t Signal Output is stopped (Over Current Protection) Set the SDB pin to Low V SDB After Over Current Protection is released, the IC becomes active by setting the SDB pin to High again. VIL=0.3 V (Max) t V BIAS VDD/2 VDD/2 × 10 % t 660 ms (Max) Figure 25. Over Current Protection (Short to the VDD pin) www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 16/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Protection Functions – continued Over Current Protection (Short to the GND pin) In case that the OUTP pin or the OUTN pin is shorted to the GND pin, Over Current Protection starts to stop output signal and latch output pins to High-Z. Once Over Current Protection is started, the latch state is not released automatically even if the OUTP pin and the OUTN pin are not shorted to the GND pin, Over Current Protection is released by shutdown. (2) Detection Release The OUTP pin or the OUTN pin is shorted to the GND pin Over Current Protection is released after setting the SDB pin to Low and waiting Turn Off Time (660 ms Max). After that, it is possible that the IC outputs signal by setting the SDB pin to High. The OUTP pin or the OUTN pin is shorted to the GND pin V The OUTP pin and the OUTN pin are not shorted to the GND pin The voltage of the OUTP pin and the OUTN pin returns to bias voltage (VDD/2),but signal output is still stopped. OUTP VDD/2 t Signal Output is stopped Over Current Protection is released (Over Current Protection) V OUTN VDD/2 t Signal Output is stopped Over Current Protection is released (Over Current Protection) V BTL (OUTP-OUTN) t Signal Output is stopped (Over Current Protection) Set the SDB pin to Low V SDB After Over Current Protection is released, the IC becomes active by setting the SDB pin to High again. VIL=0.3 V (Max) t V BIAS VDD/2 VDD/2 × 10 % t 660 ms (Max) Figure 26. Over Current Protection (Short to the GND pin) www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 17/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Protection Functions – continued 2. Thermal Shutdown In case that Tj rises to 180 °C (Typ) or more, Thermal Shutdown starts to stop output signal and pulls down output pins by 10 kΩ (Typ). Detection Release Tj : 180 °C (Typ) or more Tj : 160 °C (Typ) or less (released automatically) ˚C 180 °C (Typ) Tj 160 °C (Typ) t V SDB t V OUTP VDD/2 Signal Output is stopped t V OUTN VDD/2 Signal Output is stopped t V BTL (OUTP-OUTN) Signal Output is stopped t Figure 27. Thermal Shutdown www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 18/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Protection Functions – continued 3. Under Voltage Lock Out In case that VDD drops to 3.43 V (Typ) or less, Under Voltage Lock Out starts to stop output signal and pulls down output pins by 10 kΩ (Typ). Detection Release VDD : 3.43 V (Typ) / 3.80 V (Max) or less VDD : 3.58 V (Typ) / 3.95 V (Max) or more (released automatically) V VDD 3.58 V (Typ) 3.43 V (Typ) t V SDB t V OUTP VDD/2 Signal Output is stopped t V OUTN VDD/2 Signal Output is stopped t V BTL (OUTP-OUTN) Signal Output is stopped t Figure 28. Under Voltage Lock Out Caution: In case that the voltage of VDD falls to 3.80 V (Max) or less by fluctuation of the power supply voltage, note that Under Voltage Lock Out may start. Under the condition that RL = 6 Ω, depending on output signal level, back electromotive force may occur because of the fluctuation of load current when Under Voltage Lock Out starts and parasitic inductance inside the IC. Similarly, IR voltage drop may occur because of load current and parasitic resistance of the VDD pin. These back electromotive force or IR voltage drop may cause intermittent action between “Detection” and “Release”. This action may be heard as noise under the condition the voltage of the VDD pin is near the threshold voltage of detection. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 19/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series I/O Equivalence Circuits Pin No. Pin Name Pin Voltage Equivalent Circuit Pin Description VDD 1 SDB - SDB Shutdown High : Active Low : Shutdown GND VDD 2 BIAS 2.5 V BIAS Bias GND VDD 3 4 INP INN 2.5 V INP INN Positive Differential Input Negative Differential Input GND VDD 5 8 OUTP OUTN 2.5 V OUTP OUTN Positive Output Negative Output GND 6 VDD 5V 7 GND 0V VDD GND Power Supply GND Pin voltage is the value when VDD is 5.0 V and the operating mode is active (The SDB pin is High). www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 20/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Operational Notes 1. Reverse Connection of Power Supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply pins. 2. Power Supply Lines Design the PCB layout pattern to provide low impedance supply lines. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. Ground Voltage Ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition. 4. Ground Wiring Pattern When using both small-signal and large-current ground traces, the two ground traces should be routed separately but connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal ground caused by large currents. Also ensure that the ground traces of external components do not cause variations on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance. 5. Recommended Operating Conditions The function and operation of the IC are guaranteed within the range specified by the recommended operating conditions. The characteristic values are guaranteed only under the conditions of each item specified by the electrical characteristics. 6. Inrush Current When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of connections. 7. Testing on Application Boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage. 8. Inter-pin Short and Mounting Errors Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. 9. Unused Input Pins Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the power supply or ground line. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 21/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Operational Notes – continued 10. Regarding the Input Pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Figure 29. Example of Monolithic IC Structure 11. Ceramic Capacitor When using a ceramic capacitor, determine a capacitance value considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. 12. Thermal Shutdown Circuit (TSD) This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always be within the IC’s maximum junction temperature rating. If however the rating is exceeded for a continued period, the junction temperature (Tj) will rise which will activate the TSD circuit that will turn OFF power output pins. When the Tj falls below the TSD threshold, the circuits are automatically restored to normal operation. Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from heat damage. 13. Over Current Protection Circuit (OCP) This IC incorporates an integrated overcurrent protection circuit that is activated when the load is shorted. This protection circuit is effective in preventing damage due to sudden and unexpected incidents. However, the IC should not be used in applications characterized by continuous operation or transitioning of the protection circuit. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 22/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Ordering Information B D 7 8 3 Part Number x x Voltage Gain 06: 6 dB 10: 10 dB 26: 26 dB E F J - Package EFJ: HTSOP-J8, Production Line A UEFJ: HTSOP-J8, Production Line B ME 2 Product Rank M: for Automotive Packaging and forming specification E2: Embossed tape and reel Lineup Part Number BD78306EFJ-M BD78306UEFJ-M BD78310EFJ-M BD78310UEFJ-M BD78326EFJ-M BD78326UEFJ-M Voltage Gain 6 dB 10 dB 26 dB Part Number Marking 78306 78306U 78310 78310U 78326 78326U Production Line(Note 1) A B A B A B (Note 1) For the purpose of improving production efficiency, Production Line A and B have a multi-line configuration. Electric characteristics noted in Datasheet does not differ between Production Line A and B. Production Line B is recommended for new product. Marking Diagram HTSOP-J8(TOP VIEW) Part Number Marking LOT Number Pin 1 Mark www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 23/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Physical Dimension and Packing Information Package Name www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 HTSOP-J8 24/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 BD783xxEFJ-M BD783xxUEFJ-M Series Revision History Date Revision 19.Jul.2019 001 28.Mar.2023 002 Changes New Release page 1 Changed the notation from typical output to the maximum output. ‘1.2 W’ → ‘2.8 W High Power’ Addition of part numbers corresponding to production line B page 2 Addition of part numbers corresponding to production line B in the block diagram. Deletion of part numbers under development. page 4 Addition of part numbers corresponding to production line B in Electrical Characteristics 1. Deletion of part numbers under development in Electrical Characteristics 1. page 6 Deletion of part numbers under development from characteristics data page 23 Addition of part numbers corresponding to production line B in Ordering Part Number Information. Deletion of part numbers under development. Add part numbers corresponding to production line B to the lineup. Delete part numbers under development. www.rohm.com © 2019 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 25/25 TSZ02201-0C1C0EC00760-1-2 28.Mar.2023 Rev.002 Notice Precaution on using ROHM Products 1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used. However, recommend sufficiently about the residue.); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl 2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this document is current as of the issuing date and subject to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales representative. 3. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccuracy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001