Small-sized Class-D Speaker Amplifiers Analog Input Monaural Class-D Speaker Amplifier No.10101EAT02 BD5461GUL ●Description BD5461GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular phones, mobile audio products and the others.LC-filter of speaker output is unnecessary, and the number of external components is three. It is suitable for the application of battery drive because of high efficiency and low power consumption. Also, stand-by current is 0µA (typ.), and fast transitions from standby to active with little pop noise. It is suitable for applications that switch repeatedly between stand-by and active. ●Features 1) No LC filter required 2) Only three external components 3) High power 2.5W/4Ω/BTL (VDD=5V, RL=4Ω, THD+N=10%, typ.) 4) High power 0.85W/8Ω/BTL (VDD=3.6V, RL=8Ω, THD+N=10%, typ.) 5) Gain 12dB 6) Analog differential input / PWM digital output 7) Pop noise suppression circuitry 8) Built-in standby function 9) Protection circuitry (Short protection [Auto recover without power cycling], Thermal shutdown, Under voltage lockout) 10) Very small package 9-Bump WL-CSP (1.6*1.6*0.55mmMAX) ●Applications Mobile phones, PDA, Mobile electronics applications, Note-book PC etc. ●Absolute Maximum Ratings(Ta=25℃) Parameter Power Supply Voltage Power Dissipation Symbol Ratings VDD 7.0 Pd 690 Unit V *1 mW Storage Temperature Range Tstg -55 ～ +150 ℃ STBY Terminal Input Range Vstby -0.1～VDD+0.1 V Vin -0.1～VDD+0.1 V IN+, IN- Terminal Input Range *1 When mounted on a 50 mm×58mm Rohm standard board, reduce by 5.52 mW/°C above Ta = +25 °C. ●Operating Conditions Parameter Symbol Ratings Unit Power Supply Voltage VDD +2.5 ～ +5.5 V Temperature Range Topr -40 ～ +85 ℃ ※ This product is not designed for protection against radioactive rays www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/16 2010.06 - Rev.A Technical Note BD5461GUL ●Electric Characteristics (Unless otherwise specified, Ta=25℃, VDD=3.6V, f=1kHz, RL=8Ω, AC item=LC Filter ; L=22µH, C=1µF ) Rating Parameter Symbol Unit Conditions MIN. TYP. MAX. Circuit current (No signal) ICC ― 2.0 4.0 mA Active mode, No load Circuit current (Standby) ISTBY ― 0.1 2 μA Standby mode Output power 1 PO1 450 680 ― mW BTL, f=1kHz, THD+N=1% *1 Output power 2 PO2 550 850 ― mW BTL, f=1kHz, THD+N=10% *1 Voltage gain GV 11.4 11.9 12.4 dB BTL Power Supply Rejection Ratio PSRR 45 53 ― dB BTL, f=1kHz, Vripple=0.1Vpp *2 Output offset voltage ΔVo -25 0 +25 mV Vin=0V, BTL Switching Frequency fosc 175 250 325 kHz Start-up time Ton 0.39 0.51 0.73 msec High-level VSTBYH 1.4 ― VDD V Active mode Low-level VSTBYL 0 ― 0.4 V Standby mode High-level ISTBYH 6 12 18 μA VSTBY=3.6V Low-level ISTBYL -5 0 5 μA VSTBY=0V Standby input Voltage Standby input current BTL=Bridged Tied Load (Voltage between A3-C3.), *1;B.W.=400～30kHz,*2;DIN AUDIO ●Measurement Circuit Diagram Vripple A 10μ VDD VDD B1 VSTBY STBY C2 A Bias B2 PVDD OUTA3 OSC 22μH 1μ IN+ A1 0.1μ 8 Vin HBridge PWM Vin INC1 0.1μ OUT+ C3 VSE V VSE VBTL 22μH 1μ GND A2 V V B3 PGND ●Active / Standby Control STBY Pin(C2pin) Mode Pin level Conditions Active H IC active Standby L IC shutdown www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 2/16 2010.06 - Rev.A Technical Note BD5461GUL ●Package Outlines TOP VIEW BOTTOM VIEW 5461 LOT No. (Unit: mm) WL-CSP ： VCSP50L1 ●Block Diagram ●Pin Assignment Chart VDD B1 B2 PVDD STBY C2 Bias OSC OUTA3 IN+ A1 HBridge PWM INC1 GND A2 OUT+ C3 Pin No. Pin Name A1 IN+ A2 GND A3 OUT- B1 VDD B2 PVDD B3 PGND C1 IN- C2 STBY C3 OUT+ B3 PGND www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 3/16 2010.06 - Rev.A Technical Note BD5461GUL ●Application Circuit Example 10μ VDD B1 B2 PVDD H：Active STBY C2 L：Shutdown Audio Input+ Differential Input Bias OSC OUTA3 IN+ A1 HBridge PWM Audio Input- INC1 GND A2 Fig.1 OUT+ C3 B3 PGND Differential input for mobile phone 10μ VDD B1 H：Active STBY C2 L：Shutdown Differential Input Audio Input+ 0.1μ IN+ A1 Audio Input- 0.1μ INC1 Bias B2 PVDD OSC OUTA3 HBridge PWM GND A2 Fig.2 OUT+ C3 B3 PGND Differential input with coupling input capacitors 10μ VDD B1 H：Active STBY C2 L：Shutdown Audio Input 0.1μ IN+ A1 0.1μ INC1 Bias B2 PVDD OSC OUTA3 PWM GND A2 HBridge OUT+ C3 B3 PGND Fig.3 Single-Ended input www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4/16 2010.06 - Rev.A Technical Note BD5461GUL ●Evaluation board Circuit Diagram VDD C3 10μ VDD B1 U1 B2 PVDD S1 H：Active STBY C2 L：Shutdown Bias OSC 300k Audio Input+ 0.1μ OUTA3 IN+ Rin=75k A1 C2 Differential Input Audio Input- HBridge PWM 0.1μ C1 INC1 OUT+ C3 Rin=75k GND A2 B3 PGND Please connect to GND line. Please connect to Power Supply (VDD=+2.5～5.5V) line. Please connect to Input Signal line. Please connect to Speaker. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 5/16 2010.06 - Rev.A Technical Note BD5461GUL ●Evaluation board Parts List Qty. Item Description SMD Size 2 C1, C2 Capacitor, 0.1μF 0603 1 C3 Capacitor, 10μF A (3216) 1 S1 Slide Switch 4mm X 10.2mm 1 U1 1.6mm X 1.6mm WL-CSP Package 1 PCB1 IC, BD5461GUL, Mono Class-D audio amplifier Printed-circuit board, BD5460GUL EVM ― Manufacturer/ Part Number Murata GRM188R71C104KA01D ROHM TCFGA1A106M8R NKK SS-12SDP2 ROHM BD5461GUL ― ●Description of External components ①Input coupling capacitor (C1,C2) It makes a Input coupling capacitor 0.1µF. Input impedance is 75kΩ (Typ.). It sets cutoff frequency fc by the following formula by input coupling capacitor C1(=C2) and input impedance Ri. 1 fc [Hz] 2 π Ri C 1 In case of Ri=75kΩ, C1 (=C2)=0.1µF, it becomes fc = about 21 Hz. ②Power decoupling capacitor (C3) It makes a power decoupling capacitor 10 µF. When making capacitance of the power decoupling capacitor, there is an influence in the Audio characteristic. When making small, careful for the Audio characteristic at the actual application. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 6/16 2010.06 - Rev.A Technical Note BD5461GUL ●Evaluation board PCB layer TOP Layer silk pattern TOP Layer Bottom Layer www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 7/16 2010.06 - Rev.A Technical Note BD5461GUL ●The way of evaluating Audio characteristic Evaluation Circuit Diagram VDD C3 0.1μ VDD H：Active VDD B1 C4 10μ B2 PVDD STBY L：Shutdown C2 Bias OSC 300k Audio Input+ 0.1μ OUT- IN+ Ri=75k A1 Audio Input- HBridge PWM 0.1μ 1μF C2 Differential Input Measument Instrumen 22μH A3 INC1 C1 OUT+ 1μF C3 Ri=75k Audio Precision etc RL BTL + 22μH GND A2 B3 PGND RL=Speaker Load When measuring Audio characteristics, insert LC filter during the output terminal of IC and the speaker load and measure it. Arrange LC filter as close as possible to the output terminal of IC. In case of L=22μH, C=1μF, the cutoff frequency becomes the following. 1 1 fc 34 kHz 2 π LC 2 π 22 μH 1μF Use a big current type - Inductor L. (Reference) TDK: SLF12575T-220M4R0 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 8/16 2010.06 - Rev.A Technical Note BD5461GUL ●About the thermal design by the IC Characteristics of an IC have a great deal to do with the temperature at which it is used, and exceeding absolute maximum ratings may degrade and destroy elements. Careful consideration must be given to the heat of the IC from the two standpoints of immediate damage and long-term reliability of operation. Pay attention to points such as the following. Since an maximum junction temperature (TjMAX.)or operating temperature range (Topr) is shown in the absolute maximum ratings of the IC, to reference the value, find it using the Pd-Ta characteristic (temperature derating curve). If an input signal is too great when there is insufficient radiation, TSD (thermal shutdown) may operate. TSD, which operates at a chip temperature of approximately +180℃, is canceled when this goes below approximately +100℃. Since TSD operates persistently with the purpose of preventing chip damage, be aware that long-term use in the vicinity that TSD affects decrease IC reliability. Temperature Derating Curve Reference data VCSP50L1 1.5 Power Dissipation Pd (W) measurement conditions ： IC unit and Rohm standard board mount board size ： 50mm×58mm 1.0 0.69W θja = 181.8℃/W 0.5 0.0 0 25 50 75 85 100 125 150 Ambient Temperature Ta(℃) Note) Values are actual measurements and are not guaranteed. Power dissipation values vary according to the board on which the IC is mounted. The Power dissipation of this IC when mounted on a multilayer board designed to radiate is greater than the values in the graph above. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 9/16 2010.06 - Rev.A Technical Note BD5461GUL ●Typical Characteristics Table of graphs Items Parameter Efficiency Supply current vs Output power 4, 6 vs Output power 5, 7 vs Supply voltage 8 vs Supply voltage 9 vs Load resistance 10, 11 vs Supply voltage 12 vs Output power 13, 14 (Icc) Shutdown current (Istby) Output power Figure (Po) Total harmonic distortion plus noise (THD+N) vs Frequency vs Common-mode input voltage Supply voltage rejection ratio (PSRR) 15, 16, 17, 18, 25, 26, 27 19 vs Frequency 20, 21, 22, 23 Common-mode rejection ratio (CMRR) vs Frequency 24 Gain vs Frequency 28, 29 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10/16 2010.06 - Rev.A Technical Note BD5461GUL ●Reference Data Efficiency - Output power f=1kHz RL=8Ω+33uH LC-filter(22uH+1uF) Icc vs Output power f=1kHz RL=8Ω+33uH LC-filter(22uH+1uF) 300 100 90 250 80 200 60 Icc [mA] Efficiency [%] 70 150 50 VDD=2.5V VDD=3.6V VDD=5.0V 40 30 20 100 VDD=2.5V VDD=3.6V VDD=5.0V 50 10 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Po [W] 1 0 1.1 1.2 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Po [W] Fig.4 0.9 1 1.1 1.2 Fig.5 Icc vs Output power f=1kHz RL=4Ω+33uH LC-filter(22uH+1uF) Efficiency vs Output power f=1kHz RL=4Ω+33uH LC-filter(22uH+1uF) 600 90 500 80 400 60 50 Icc [mA] Efficiency [%] 70 VDD=2.5V VDD=3.6V VDD=5.0V 40 30 300 VDD=2.5V VDD=3.6V VDD=5.0V 200 20 100 10 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 2 0 Po [W] 0.2 0.4 0.6 Fig.6 1 1.2 Po [W] 1.4 1.6 1.8 2 Fig.7 Icc - VDD No load, No signal Istby - VDD 0.5 3 0.4 Istby [uA] 2.5 Icc [mA] 0.8 2 1.5 0.3 0.2 1 0.1 0.5 0 0 0 1 2 3 VDD [V] 4 5 0 6 1 2 Fig.8 5 6 Output power vs RL THD+N=1% f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 1.4 2.4 1.2 VDD=2.5V VDD=3.6V VDD=5.0V 1.6 VDD=2.5V VDD=3.6V VDD=5.0V 1.0 Po [W] 2.0 Po [W] 4 Fig.9 Output power vs RL THD+N=10% f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 2.8 3 VDD [V] 1.2 0.8 0.8 0.6 0.4 0.4 0.2 0.0 4 8 12 16 20 24 28 0.0 32 4 RL [Ω] 8 12 16 20 24 28 32 RL [Ω] Fig.10 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Fig.11 11/16 2010.06 - Rev.A Technical Note BD5461GUL THD+N vs Output power RL=4Ω f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz Output power vs VDD f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz 10 2.5 RL=8Ω：THD+N=1% RL=8Ω：THD+N=10% 2.0 RL=4Ω：THD+N=1% RL=4Ω：THD+N=10% VDD=2.5V VDD=3.6V THD+N [%] Po [W] 3.0 1.5 VDD=5.0V 1 1.0 0.5 0.1 0.01 0.0 2.5 3 3.5 VDD [V] 4 4.5 5 0.1 Fig.12 1 10 Fig.13 THD+N vs Output power RL=8Ω f=1kHz LC-filter(22uH+1uF) 400Hz-30kHz THD+N vs Frequency VDD=5.0V RL=8Ω LC-filter(22uH+1uF) 30kHz-LPF 10 10 VDD=2.5V VDD=3.6V VDD=5.0V Po=50mW Po=250mW Po=1W THD+N [%] THD+N [%] Po [W] 1 1 0.1 0.1 0.01 0.1 Po [W] 1 10 10 100 Fig.14 10k 100k Fig.15 THD+N vs Frequency VDD=3.6V RL=8Ω LC-filter(22uH+1uF) 30kHz-LPF 10 1k freq [Hz] THD+N vs Frequency VDD=2.5V RL=8Ω LC-filter(22uH+1uF) 30kHz-LPF 10 Po=25mW Po=125mW Po=400mW 1 THD+N [%] THD+N [%] 1 Po=15mW Po=75mW Po=200mW 0.1 0.1 0.01 0.01 10 100 1k freq [Hz] 10k 10 100k 100 Fig.16 1k freq [Hz] 10k 100k Fig.17 THD+N_vs_Common Mode Input Voltage f=1kHz RL=8Ω Po=200mW LC-filter(22uH+1uF) 400Hz-30kHz THD+N vs Frequency RL=4Ω Po=250mW LC-filter(22uH+1uF) 30kHz-LPF 10 2 1.8 VDD=2.5V VDD=3.6V VDD=5.0V VDD=2.5V VDD-3.6V VDD=5.0V 1.6 THD+N [%] THD+N [%] 1.4 1 1.2 1 0.8 0.6 0.4 0.2 0.1 10 100 1k freq [Hz] 10k 0 100k 0 Fig.18 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1 2 3 4 5 Vic - Common Mode Input Voltage [V] 6 Fig.19 12/16 2010.06 - Rev.A Technical Note BD5461GUL PSRR RL=4Ω Vripple=0.1Vpp Inputs ac-Grounded LC-filter(22uH+1uF) 30kHz-LPF 0 PSRR RL=8Ω Vripple=0.1Vpp Inputs ac-Grounded LC-filter(22uH+1uF) 30kHz-LPF 0 -10 -10 VDD=2.5V VDD=3.6V VDD=5.0V VDD=2.5V -20 -20 PSRR [dB] PSRR [dB] VDD=3.6V VDD=5.0V -30 -30 -40 -40 -50 -50 -60 -60 10 100 1k f [Hz] 10k 10 100k 100 Fig.20 -10 VDD=2.5V VDD=3.6V VDD=5.0V VDD=3.6V -20 VDD=5.0V PSRR [dB] PSRR [dB] -20 100k PSRR RL=8Ω Vripple=0.1Vpp Inputs Floating LC-filter(22uH+1uF) 30kHz-LPF 0 VDD=2.5V -10 10k Fig.21 PSRR RL=4Ω Vripple=0.1Vpp Inputs Floating LC-filter(22uH+1uF) 30kHz-LPF 0 1k f [Hz] -30 -40 -30 -40 -50 -50 -60 -60 -70 -70 10 100 1k f [Hz] 10k 10 100k 100 Fig.22 Po=50mW Po=250mW Po=1W -35 THD+N [%] VDD=2.5V VDD=3.6V VDD=5.0V CMRR [dB] 100k THD+N vs Frequency VDD=5.0V RL=4Ω LC-filter(22uH+1uF) 30kHz-LPF 10 -30 -45 10k Fig.23 CMRR RL=8Ω Vin=1Vpp LC-filter(22uH+1uF) 30kHz-LPF -40 1k f [Hz] 1 -50 -55 0.1 -60 10 100 1k freq [Hz] 10k 10 100k 100 Fig.24 1k freq [Hz] 10k 100k Fig.25 THD+N vs Frequency VDD=3.6V RL=4Ω LC-filter(22uH+1uF) 30kHz-LPF THD+N vs Frequency VDD=2.5V RL=4Ω LC-filter(22uH+1uF) 30kHz-LPF 10 10 Po=25mW Po=125mW Po=500mW Po=75mW THD+N [%] THD+N [%] 1 Po=15mW Po=200mW 1 0.1 0.1 0.01 10 100 1k freq [Hz] 10k 10 100k Fig.26 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 100 1k freq [Hz] 10k 100k Fig.27 13/16 2010.06 - Rev.A Technical Note BD5461GUL Gain_vs_Frequency RL=4Ω Vin=0.5Vpp LC-filter(22uH+1uF) 30kHz-LPF Gain vs Frequency RL=8Ω Vin=0.5Vpp LC-filter(22uH+1uF) 30kHz-LPF 10 10 5 5 gain [dB] 15 gain [dB] 15 0 VDD=2.5V VDD=3.6V VDD=5.0V -5 -10 VDD=2.5V VDD=3.6V VDD=5.0V 0 -5 -10 -15 -15 10 100 1k freq [Hz] 10k 100k Fig.28 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10 100 1k freq [Hz] 10k 100k Fig.29 14/16 2010.06 - Rev.A Technical Note BD5461GUL ●Notes for use (1) Numbers and data in entries are representative design values and are not guaranteed values of the items. (2) Although we are confident recommending the sample application circuit, carefully check their characteristics further when using them. When modifying externally attached component constants before use, determine them so that They have sufficient margins by taking into account variations in externally attached components and the Rohm IC,not only for static characteristics but also including transient characteristics. (3) Absolute maximum ratings This IC may be damaged if the absolute maximum ratings for the applied voltage, temperature range, or other parameters are exceeded. Therefore, avoid using a voltage or temperature that exceeds the absolute maximum ratings. If it is possible that absolute maximum ratings will be exceeded, use fuses or other physical safety measures and determine ways to avoid exceeding the IC's absolute maximum ratings. (4) GND terminal’s potential Try to set the minimum voltage for GND terminal’s potential, regardless of the operation mode. (5) Shorting between pins and mounting errors When mounting the IC chip on a board, be very careful to set the chip's orientation and position precisely.When the power is turned on, the IC may be damaged if it is not mounted correctly. The IC may also be damaged if a short occurs (due to a foreign object, etc.) between two pins, between a pin and the power supply, or between a pin and the GND. (6) Operation in strong magnetic fields Note with caution that operation faults may occur when this IC operates in a strong magnetic field. (7) Thermal design Ensure sufficient margins to the thermal design by taking in to account the allowable power dissipation during actual use modes, because this IC is power amp. When excessive signal inputs which the heat dissipation is insufficient condition, it is possible that thermal shutdown circuit is active. (8) Thermal shutdown circuit This product is provided with a built-in thermal shutdown circuit. When the thermal shutdown circuit operates, the output transistors are placed under open status. The thermal shutdown circuit is primarily intended to shut down the IC avoiding thermal runaway under abnormal conditions with a chip temperature exceeding Tjmax = +150℃, and is not intended to protect and secure an electrical appliance. (9) Load of the output terminal This IC corresponds to dynamic speaker load, and doesn't correspond to the load except for dynamic speakers. (10) The short protection of the output terminal The short-circuiting protection of this IC corresponds only to “VDD-short” (the short-circuiting with the power) of the output terminal and “GND-short” (the short-circuiting with GND) of the output terminal. It doesn't correspond to the short-circuiting among the output terminals. Also, when the short-circuiting condition of the output terminal is canceled, it detects the high impedance of the output terminal and it is equipped with the auto recover without power cycling(the cancellation) function in the short-circuiting protection. Be careful of the output terminal, because, there is a fear not to return automatically when the short-circuiting condition occurs in pull-up or the pull-down at equal to or less than about 1MΩ impedance, (11) Operating ranges The rated operating power supply voltage range (VDD=+2.5V～+5.5V) and the rated operating temperature range (Ta=-40℃～+85℃) are the range by which basic circuit functions is operated. Characteristics and rated output power are not guaranteed in all power supply voltage ranges or temperature ranges. (12) Electrical characteristics Electrical characteristics show the typical performance of device and depend on board layout, parts, power supply. The standard value is in mounting device and parts on surface of ROHM’s board directly. (13) Power decoupling capacitor Because the big peak current flows through the power line, the class-D amplifier has an influence on the Audio characteristic by the capacitance value or the arrangement part of the power decoupling capacitor. Arrange a power decoupling capacitor as close as possible to the VDD terminal of IC. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 15/16 2010.06 - Rev.A Technical Note BD5461GUL ●Ordering part number B D 5 Part No. 4 6 1 Part No. 5461 G U L - E Package GUL：VCSP50L1 2 Packaging and forming specification E2: Embossed tape and reel VCSP50L1(BD5461GUL) <Tape and Reel information> 1.6±0.1 Tape Embossed carrier tape Quantity 3000pcs Direction of feed 0.55MAX 0.1±0.05 1.6±0.1 1PIN MARK E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) (φ0.15)INDEX POST A C B B A 1 0.3±0.1 2 P=0.5×2 0.08 S 9-φ0.25±0.05 0.05 A B 0.3±0.1 S 3 1pin P=0.5×2 (Unit : mm) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Reel 16/16 Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. 2010.06 - Rev.A Datasheet Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you (Note 1) , transport intend to use our Products in devices requiring extremely high reliability (such as medical equipment equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, 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 designed and manufactured for use under standard conditions and not 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 (even if you use no-clean type fluxes, cleaning residue of flux is recommended); 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 (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual ambient 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; if flow soldering method is preferred, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice - GE © 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet 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 Cl2, 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 QR code 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 our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with ROHM representative 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. ROHM shall not be in any way responsible or liable for infringement of any intellectual property rights or other damages arising from use of such information or data.: 2. 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 information contained in this document. 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 - GE © 2014 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s representative. 3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. Notice – WE © 2014 ROHM Co., Ltd. All rights reserved. Rev.001