DC/DC converter BP5250/BP5250-24 The BP5250/BP5250-24 are DC/DC converters for step-down that can drive PchFET using PWM system. The voltage setting resistor and the combination of external power elements enable you to make any power circuit to your liking. High-efficient DC/DC converter can be made easy by adding external components such as I/O smoothing capacitor without designing circuit. Applications OA appliances(copy machine,personal computer, facsimile), AV appliances (car navigation, DVD etc.), and industrial appliances. Features 1) High power conversion(η=90% Vin=12V 5V/2A) 2) Power save pin(Leakage current at OFF mode : IR=10µAMAX) 3) Output voltage can be established from 1.5V to 9V in the VADJ pin.(For BP5250, however, output voltage is limted by input voltage.) 4) With recovery type overcurrent protection function (Detection current can be established by the external current detection resistance.) 5) Power circuit can be made easy by adding external smoothing capacitor and power element. 6) Reference voltage accuracy 1.25V±1% Absolute maximum ratings (Ta=25°C) Limits Parameter Symbol Vi Input voltage ESD endurance BP5250-24 24 30 V DC (EIAJ ED4701-1C-111A) Vsurge 1 kV Topr −40 ∼ +85 °C Operating temperature range Condition Unit BP5250 Tstg −50 ∼ +100 °C Allowable max surface temperature Tfmax 100 °C Ambient temperature+The module self-heating ≤ Tfmax The power saving terminal voltage VCTL V Vi ≥ VCTL Storage temperature range 24 30 Recommended operating conditions (Ta=25°C) Parameter Input voltage BP5250 BP5250-24 Symbol Vi Min. Typ. Max. Unit 8 12 16 V 20 24 27 V 1/11 BP5250 / BP5250-24 Block diagram CONTROL CIRCUIT OVER CURRENT DETECTION CIRCUIT DRIVE CIRCUIT 1 2 3 4 5 6 7 VCTL Vi SW GND IS VO VADJ Pin descriptions Pin No. Pin name 1 VCTL 2 Vi 3 SW 4 GND 5 IS 6 Vo 7 VADJ Function Power save terminal.Setting the voltage on this terminal to Low or high impedance turns the output OFF. Normally connect to Vi for use. Input voltage terminal. Inserting a bypass capacitor of 0.1µF between this and pin 4 GND is recommended. Terminal to drive the external FET gate. GND terminal. Connect the negative terminal of the I/O smoothing capacitor and the anode terminal of the flywheel diode nearby. Overcurrent detection terminal. The value of the resistor inserted between this and pin 6 sets the output current capacity. Output voltage monitor terminal. Output voltage setting terminal. The values of the resistors inserted between this and pin 6 and between this and GND set the output voltage capacity. 2/11 BP5250 / BP5250-24 Electrical characteristics (Unless otherwise noted, Vi=12V : BP5250, Vi=24V : BP5250-24, Ta=25°C) Symbol Min. Typ. Max. Unit Output ADJ Pin voltage Parameter VADJ 1.225 1.25 1.275 V Over current detection off set voltage1 VLT1 60 68 76 Over current detection off set voltage2 VLT2 20 28 CTL pin ON voltage VCTLH 2 CTL pin OFF voltage Test Circuit Conditions VSW L→H Fig.1 mV VSW L→H VADJ=1.25V Fig.2 36 mV VSW L→H VADJ=0V Fig.2 − − V VSW H→L Fig.3 VCTLL − − 1 V VSW L→H Fig.3 CTL sink current ICTL 40 50 70 µA VCTL=5V Fig.3 Stand by current ISTB − 0 10 µA VCTL=0V Fig.3 Measurement circuit BP5250 / BP5250-24 BP5250 / BP5250-24 VCTL Vi SW GND IS Vo VADJ VCTL Vi SW GND IS Vo VADJ 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Vi=12V : BP5250 Vi=24V : BP5250-24 Vi=12V : BP5250 Vi=24V : BP5250-24 VLT L→H L→H VSW 5V VADJ Vi VSW 5V Fig.1 Output ADJ terminal voltage measurement circuit Vi VADJ Over current detection off set voltage 1 : VADJ=1.25V Over current detection off set voltage 2 : VADJ=0V Fig.2 Over current detection off set voltage measurement circuit BP5250 / BP5250-24 VCTL Vi SW GND IS Vo VADJ 1 2 3 4 5 6 7 A Vi=12V : BP5250 Vi=24V : BP5250-24 A ICTL ISTB VCTL Vi VSW CTL sink current Stad by current VADJ 1.25V : VCTL=5V : VCTL=0V Fig.3 Control terminal voltage sink current · Stand by sink current measurement circuit 3/11 BP5250 / BP5250-24 Application example (1) Application circuit example is shown in the Fig.4. R1 : Over-current detection resistance R1=0.068/I(0.068V : offset voltage) Overcurrent protection characteristic at R1=27mΩ is shown below. BP5250 / BP5250-24 Vi SW GND IS Vo VADJ 1 2 3 4 5 6 7 C4 Vin SD1 C1 680µF/25V R3 : 30kΩ C3 L1 R1 22µH 27mΩ Q1 Vout R2 10kΩ C2 680µF/16V BP5250 over-current protection characteristic (Vin=12V) 6.0 Output voltage [v] VCTL 5.0 4.0 3.0 2.0 1.0 0 I 0 500 1000 1500 2000 Output current [mA] 2500 R2, R3 : Outpur voltage Establishment example establishment resistance Vo(V) R2(Ω) R3(Ω) Fig.4 ∗Application Input voltage 12V Output current 2A Output voltage 5V Q1 : 2SJ529S/Hitachi SD : RB050L-40/ROHM L1 : CDRH124-220L/Sumida C1 : 680µF/25V(ZL series)/Rubycon C2 : 680µF/10V(ZL series)/Rubycon C3 : 0.1µF/16V C4 : 0.1µF/25V Vo=VADJ × (1+R3/R2) (R2+R3≤55kΩ) 8.0 3.3k 18k 5.0 10k 30k 3.3 20k 33k 2.5 10k 10k 1.5 10k 2k · There is a posibility that the C1 exceeds the allowable ripple current. Note the allowable ripple current of the capacitor to be used. · R2+R3≤55KΩ is recommended for R2,3 to make the most of output voltage accuracy. · Output voltage range is limited by input voltage. Please refer to the Fig.8. (2) When the load current is increased. It is possible by arrangement in a parallel connecting Q1, 2 and SD1,2 (3) When the power saving function is used. The output is off when the VCTL pin is set to the Low or high-impedance. BP5250 / BP5250-24 BP5250 / BP5250-24 VCTL Vi SW GND IS Vo VADJ VCTL Vi SW GND IS Vo VADJ 1 2 3 4 5 6 7 1 2 3 4 5 6 7 C4 Q1 Vin R3 R3 L1 R1 C3 C2 Vout R2 Q2 C1 SW Vin C1 C4 Q1 L1 SD1 R1 C3 C2 Vout R2 SD1,2 Fig.5 Fig.6 · When Q1 and Q2 are connected parallel, use of a device with small gate capacity is recommended. Large gate capacity reduces the switching speed, which may cause a larger FET loss, exceeding the allowable loss value. · When 2SJ529S is connected parallel, the rated load current 3A is the maximum atVi=12V,Vo=5V 4/11 BP5250 / BP5250-24 Output voltage establishment range Output voltage establishment range is changed by input voltage.Please refer to the Fig.8. Vi−Vo characteristic Output voltage establishment [v] 30 24V 25 20 17V 15 5 BP5250 1.5V 0 6 BP5250-24 9V 10 8 10 12 14 16 18 20 22 24 26 28 30 Vi [V] Fig.8 Caution note for operation (1) Output voltage establishment range is changed by input voltage.Please refer to the Fig.8. (2) Layout of external parts may significantly change the output spike noise or characteristics or cause abnomal oscillation and temperature increase. Note the following for layout. · Provide the input smoothing electroytic capacitor close to the FET source and pin 2 of the module. · Provide the output smoothing electrolytic capacitor close to pin 6 of the module together with the current detection resistor · Large current may run into the coil, current detection resistor and output through the FET sourcedrain.Try to use a solid pattern as much as possible. · FET drain, coil and flywheel diode may generate heat by power loss. Try to use a solid pattern so that the heat may be released. Measure a rise in temperature of each element and make sure that it is not abnormal. · Provide the negative terminal of the I/O smoothing capacitor and anode terminal of the flywheel diode close to GND pin 4 of the module. · Connect the negative terminal of the I/O smoothing electrolytic capacitor and anode terminal of the flywheel diode nearby. (3) Output load may cause large ripple current in the I/O smoothing electrolytic capacitor. Note the allowable ripple current of the capacitor to be used. (4) As the output smoothing electrolytic capacitor, one with especially low impedance is recommended for suppresing output ripple voltage. Select a capacitor suited for the use. (5) Please be sure to use protection circuit function.(R1 should not be 0Ω.) Output voltage establishment and application circuit example BP5250-BP5250-24 VCTL Vi SW GND IS Vo VADJ 1 2 3 4 5 6 7 R3 C4 Vin C1 Q1 L1 SD1 R1 C2 C3 ∗Application example Input voltage 12V Output voltage 5V Q1 : 2SJ529S/hitachi SD : RB050L-40/ROHM L1 : CDRH124-220L/Sumida C1 : 680µF/25V(ZL seried)/Rubycon C2 : 680µF/16V(ZL series)/Rubycon C3 : 0.1µF/16V/ROHM C4 : 0.1µF/25V/ROHM R1 : 27mΩ/SUSUMU R2 : 10kΩ/ROHM R3 : 30kΩ/ROHM Vout R2 Fig.9 5/11 BP5250 / BP5250-24 (1) Output voltage and resistance Estoblishment example Output voltage Vo is determined by output ADJ pin voltage(VADJ) and R2, R3. Vo=VADJ × (1+R3/R2)[V] VADJ=1.25V Note) Please set the resistance to R2+R3≤55KΩ to make the best use of this module performance. Vo(V) R2(Ω) R3(Ω) 8.0 3.3k 18k 5.0 10k 30k 3.3 20k 33k 2.5 10k 10k 1.5 10k 2k (2) FET(Q1) FET is determined by taking the peak current flowed to the external FET, drain-source voltage(VDS), ON resistance(RDS(ON)), input capacity(Ciss), allowable loss of package, and area of safe operation. For the basic circuit example(Fig.9), FET of 2SJ529S/Hitachi is used. Please use FET with the characteristic equal to or than this one.Especially, the input capacity(Ciss), and ON resistance may cause a larger FET loss. Note the FET with the characteristic equal to or higher to be used. The characteristic of 2SJ529S is VDS =−60V ID =−10A RDS(ON) =0.17ΩTYP(ID=−5A, VDS=−4V) Pch =20W(Tc=25°C) Ciss =580PF (3) Inductor(L1) inductor L1 is determined by the following expression in consideration of output ripple current. L1≥n × (Vi-Vo)/Io × 1/f × Vo/Vi [H] Vi : Input voltage [V] Vo : Output voltage [V] Io : Output current [A] f : Oscillation frequency (£190KHz) n : Ripple current condition Io/n is ripple current. Normally, n=2.5∼5 is recommended. L is determined from above. Peak current flowed into the inductor by the determined L is ip=Io+(Vi-Vo)/2 × 1/L1 × 1/f × (1-Vo/Vi) [A] ip for actual usage is calculated back by the L of the expression above. Ripple current ir by the determined L is ir=(Vi-Vo)/L1 × 1/f × Vo/Vi [A] As stated above, after L1[H] inductor and the ip[A] peak current are determined, an inductor for these specifications can be determined. Output ripple voltage is determined by the multiplication of the ir[A] ripple current and the impedance of the smoothing capacitor. Vr=ir × Zc Vr : Output ripple voltage [Vp-p] Zc: Impedance of smoothing capacitor[Ω] 6/11 BP5250 / BP5250-24 (4) Flywhell diode(SD1) · Rated current must be twice as much as the maximum overload current(Iomax) or more. · Rated voltage must be 1.3 times as much as the maximum input voltage or more. · Please use the high-speed switching schottky barrierdiode that reverse recovery time is 50ns or less. · If it used in high temperature, please be careful about the temperature characteristics of IR. VLT1 : Overcurrent offset voltage1(60∼76mV) Iomax : Maximum overload current [A] DC reverse vpltage [V] 40 30 20 10 0 5 10 15 20 Input voltage Vi [V] 25 30 Overcurrent protection characteristic Output voltage [Vo] (5) Overcurrent detection resisor(R1) Overcurrent detection resistor is determined by the following expression. R1=VLT1/Iomax [mΩ] Input voltage VS. DC reverse voltage 50 And, ISL current at short circuit is Vo ISL Iomax Output current [Io] ISL=VLT2/R1 [A] VLT2 : Overcurrent detection offset voltage2(20∼36mV) From the above-mentioned, fold-back current characteristic when the overcurrent protection is operated is shown. Both Iomax, and ISL may be different value from the actual value because they are detected at the peak current. Please make sure to confirm it in the actual operating. (6) Input smoothing capacitor(C1) Large ripple current flow into the input smoothing capacitor. The current is determined by the following expression. For actual usage, please use the larger one than this numeric value. Irms=ir × Vo/3Vi +(ip-ir) × Vo/Vi [A] Irms : Input ripple current actual-value [Arms] ir : Ripple current [A] ip : Peak current [A] V : Input voltage [V] Vo : Output voltage [V] · Voltage of the used capacitor must be more than Vi × 2. · Allowable ripple current of the used capacitor must be larger than the ripple current. (7) Output smoothing capacitor(C2) Output smoothing capacitor is determined by the impedance of smoothing capacitor from the mark value of output ripple voltage. Zc≤Vr/ir [Ω] Zc : Impedance of capacitor [Ω] Vr : Mark value of output ripple voltage[Vp-p] ir : Ripple current [A] · Voltage of the used capacitor must be more than Vo × 2. · Allowable ripple current of the used capacitor must be larger than the ripple current. 7/11 BP5250 / BP5250-24 External dimensions (Units : mm) 5.2Max. 4±1.0 13.0Max. 20.0Max. 1 2 3 4 5 P=2.54±0.2 6 7 0.5±0.1 1.3±0.2 0.255±0.05 2.7Max. 3.0Max. 2.5Max. 2.54×6=15.24 SIP9 8/11 BP5250 / BP5250-24 BP5250 external reference components Input voltage12V Outpur current output voltage Note 1A 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Q1 CPH6306 CPH6306 CPH6306 CPH6306 CPH6306 SD1 RB050L-40 RB050L-40 RB050L-40 RB050L-40 RB050L-40 17∼34µH±10% 26∼52µH±10% 31∼63µH±10% 38∼77µH±10% 35∼70µH±10% 1.3A or higher 1.3A or higher 1.3A or higher 1.4A or higher 1.5A or higher L1 C1 C2 C3 C4 R1 220∼4700µF 220∼4700µF 220∼4700µF 220∼4700µF 330∼4700µF 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher Allowable ripple currnt 220∼1000µF 220∼1000µF 220∼1000µF 220∼1000µF 220∼1000µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Outpur current output voltage Note 2A Q1 2SJ529S 2SJ529S 2SJ529S 2SJ529S 2SJ529S SD1 RB050L-40 RB050L-40 RB050L-40 RB050L-40 RB050L-40 L1 C1 C2 9∼17µH±10% 13∼26µH±10% 16∼31µH±10% 19∼38µH±10% 17∼35µH±10% Rated current 2.5A or higher 2.5A or higher 2.5A or higher 2.5A or higher 2.6A or higher Allowable ripple currnt 0.8Arms or higher 1Arms or higher 1Arms or higher 330∼4700µF 330∼4700µF 330∼4700µF 1.5Arms or higher 1.8Arms or higher 680∼4700µF 680∼4700µF 560∼1500µF 560∼1500µF 560∼1500µF 560∼1500µF 560∼1500µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) C4 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Outpur current output voltage Allowable ripple currnt 0.6Arms or higher 0.6Arms or higher 0.6Arms or higher 0.6Arms or higher 0.7Arms or higher C3 R1 Rated current 0.4Arms or higher 0.5Arms or higher 0.6Arms or higher 0.7Arms or higher 0.9Arms or higher Allowable ripple currnt Note 3A Q1 2SJ529S×2 2SJ529S×2 2SJ529S×2 2SJ529S×2 2SJ529S×2 SD1 RB050L-40×2 RB050L-40×2 RB050L-40×2 RB050L-40×2 RB050L-40×2 6∼11µH±10% 9∼17µH±10% 10∼21µH±10% 13∼26µH±10% 12∼23µH±10% Rated current 3.7A or higher 3.7A or higher 3.8A or higher 3.8A or higher 3.9A or higher Allowable ripple currnt L1 C1 C2 C3 C4 R1 1.2Arms or higher 1.5Arms or higher 1.8Arms or higher 2.2Arms or higher 2.7Arms or higher 470∼4700µF 680∼4700µF 680∼4700µF 1000∼4700µF 0.8Arms or higher 0.9Arms or higher 0.9Arms or higher 0.9Arms or higher 1500∼4700µF Allowable ripple currnt 1Arms or higher 680∼1500µF 680∼1500µF 680∼1500µF 680∼1500µF 680∼1500µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 9/11 BP5250 / BP5250-24 BP5250-24 external referene components Input voltage24V Output current Output voltage Note 1A 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Q1 CPH6306 CPH6306 CPH6306 CPH6306 CPH6306 SD1 RB050L-40 RB050L-40 RB050L-40 RB050L-40 RB050L-40 18∼37µH±10% 30∼59µH±10% 37∼75µH±10% 52∼105µH±10% 70∼140µH±10% 1.3A or higher 1.3A or higher 1.3A or higher 1.3A or higher 1.3A or higher L1 C1 C2 C3 C4 R1 33∼4700µF 100∼4700µF 100∼4700µF 100∼4700µF 100∼4700µF 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher 0.3Arms or higher Allowable ripple current 220∼1000µF 220∼1000µF 220∼1000µF 220∼1000µF 220∼1000µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than 56mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Output current Output voltage Note 2A Q1 2SJ529S 2SJ529S 2SJ529S 2SJ529S 2SJ529S SD1 RB050L-40 RB050L-40 RB050L-40 RB050L-40 RB050L-40 9∼18µH±10% 15∼30µH±10% 19∼38µH±10% 26∼52µH±10% 35∼70µH±10% 2.5A or higher 2.5A or higher 2.5A or higher 2.5A or higher L1 C1 C2 0.6Arms or higher 0.7Arms or higher 0.8Arms or higher 100∼4700µF 100∼4700µF 220∼4700µF 1Arms or higher 220∼4700µF 2.5A or higher 220∼4700µF 0.6Arms or higher 0.6Arms or higher 0.6Arms or higher 0.6Arms or higher 0.6Arms or higher Allowable ripple current 560∼1500µF 560∼1500µF 560∼1500µF 560∼1500µF 560∼1500µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) C4 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 0.1µF/50V (R) 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than 27mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 1.5V±3% 2.5V±3% 3.3V±3% 5V±3% 8V±3% Output current Output voltage Note 3A Q1 2SJ529S×2 2SJ529S×2 2SJ529S×2 2SJ529S×2 2SJ529S×2 SD1 RB050L-40×2 RB050L-40×2 RB050L-40×2 RB050L-40×2 RB050L-40×2 L1 C1 C2 C3 C4 R1 Rated current 1.3Arms or higher Allowable ripple current C3 R1 Rated current 0.3Arms or higher 0.4Arms or higher 0.4Arms or higher 0.5Arms or higher 0.7Arms or higher Allowable ripple current 6∼12µH±10% 10∼20µH±10% 13∼25µH±10% 17∼35µH±10% 23∼47µH±10% 3.8A or higher 3.8A or higher 3.8A or higher 3.8A or higher 3.8A or higher 0.9Arms or higher 1Arms or higher 220∼4700µF 220∼4700µF Rated current 1.2Arms or higher 1.5Arms or higher 1.9Arms or higher Allowable ripple current 220∼4700µF 470∼4700µF 470∼4700µF 0.9Arms or higher 0.9Arms or higher 0.9Arms or higher 0.9Arms or higher 0.9Arms or higher Allowable ripple current 680∼1500µF 680∼1500µF 680∼1500µF 680∼1500µF 680∼1500µF 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/16V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 0.1µF/25V (R) 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than 18mΩ±5% less than R2 10kΩ±1% 10kΩ±1% 20kΩ±1% 10kΩ±1% 3.3kΩ±1% R3 2kΩ±1% 10kΩ±1% 33kΩ±1% 30kΩ±1% 18kΩ±1% 10/11 Precautions on Use of ROHM Power Module Safety Precautions 1) The products are designed and produced for application in ordinary electronic equipment (AV equipment, OA equipment, telecommunication equipment, home appliances, amusement equipment etc.). If the products are to be used in devices requiring extremely high reliability (medical equipment, transport equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or operational error may endanger human life and sufficient fail-safe measures, please consult with the Company's sales staff in advance. If product malfunctions may result in serious damage, including that to human life, sufficient fail-safe measures must be taken, including the following: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits in the case of single-circuit failure 2) The products are designed for use in a standard environment and not in any special environments. Application of the products in a special environment can deteriorate product performance. Accordingly, verification and confirmation of product performance, prior to use, is recommended if used under the following conditions: [a] Use in various types of liquid, including water, oils, chemicals, and organic solvents [b] Use outdoors where the products are exposed to direct sunlight, or in dusty places [c] Use in places where the products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use in places where the products are exposed to static electricity or electromagnetic waves [e] Use in proximity to heat-producing components, plastic cords, or othe flammable items [f] Use involving sealing or coating the products with resin or other coating materials [g] Use involving unclean solder or use of water or water-soluble cleaning agents for cleaning after soldering [h] Use of the products in places subject to dew condensation 3) The products are not radiation resistant. 4) The Company is not responsible for any problems resulting from use of the products under conditions not recommended herein. 5) The Company should be notified of any product safety issues. Moreover, product safety issues should be periodically monitored by the customer. Precautions Regarding Application Example and External Circuits 1) If change is made to the constant of an external circuit, allow a sufficient margin due to variations of the characteristics of the products and external components, including transient characteristics, as well as static characteristics. Please be informed that the Company has not conducted investigations on whether or not particular changes in the application examples or external circuits would result in the infringement of patent rights of a third party. 2) The application examples, their constants, and other types of information contained herein are applicable only when the products are used in accordance with standard methods. Therefore, if mass production is intended, sufficient consideration to external conditions must be made. Prohibitions Regarding Industrial Property 1) These Specifications contain information related to the Company’s industrial property. Any use of them other than pertaining to the usage of appropriate products is not permitted. Duplication of these Specifications and its disclosure to a third party without the Company’s permission is prohibited. 2) Information and data on products, including application examples, contained in these specifications are simply for reference; the Company does not guarantee any industrial property rights, intellectual property rights, or any other rights of a third party regarding this information or data. Accordingly, the Company does not bear any responsibility for: [a] infringement of the intellectual property rights of a third party [b] any problems incurred by the use of the products listed herein. 3) The Company prohibits the purchaser of its products to exercise or use the intellectual property rights, industrial property rights, or any other rights that either belong to or are controlled by the Company, other than the right to use, sell, or dispose of the products. 11/11 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0