1/4 STRUCTURE TYPE PRODUCT SERIES FEATURES Silicon Monolithic Integrated Circuit 2ch DC/DC converter IC BD95830MUV 3 ・Built in 2ch H Reg DC/DC converter controller ・Adjustable output voltage setting (0.8V～5.5V) ○Absolute Maximum Ratings (Ta=25℃) Parameter Input Voltage BOOT Voltage BOOT-SW Voltage Output Voltage Output Feedback Voltage VREG Voltage VCC Voltage Logic Input Voltage Power Dissipation 1 Symbol VIN1, VIN2, VINS BOOT1,BOOT2 Limit 15.1 *1*2 21.1 *1*2 Unit V V BOOT1-SW1, BOOT2-SW2 7 *1*2 V VOUT1, VOUT2 7 *1*2 V FB1, FB2 VREG V VREG 7 *1*2 V VCC VREG V EN1, EN2 15.1 *1*2 V Pd1 0.38 *3 W W W Power Dissipation 2 Pd2 0.88 *4 Power Dissipation 3 Pd3 3.26 *5 4.56 *6 Power Dissipation 4 Pd4 Operating Temperature Range Topr -20～+100 ℃ Storage Temperature Range Tstg -55～+150 ℃ Tjmax +150 ℃ Maximum Junction Temperature W *1 Not to exceed Pd. *2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle. *3 Reduced by 3.04mW/℃ for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board ) *4 Reduced by 7.04mW/℃ for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(1 layer), copper foil area : 20.2mm2) 2 *5 Reduced by 26.11mW/℃ for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(4 layer), copper foil area: 20.2mm , 2-3layer: 5505mm2) *6 Reduced by 36.5mW/℃ for increase in Ta of 1℃ over 25℃. (when mounted on a board 74.2mm×74.2mm×1.6mm Glass-epoxy PCB(4 layer), copper foil area: 5505mm2) ○Operating Conditions （Ta=25℃） Parameter Symbol MIN. MAX. Unit Input Voltage VIN1, VIN2, VINS 7.5 15 V BOOT Voltage BOOT1, BOOT2 4.5 21 V SW1, SW2 -0.7 15 V BOOT-SW Voltage BOOT1-SW1, BOOT2-SW2 4.5 5.5 V Logic Input Voltage EN1, EN2 0 15 V Output Voltage VOUT1, VOUT2 0.8 5.5 V MIN ON TIME tonmin - 100 ns SW Voltage ● This product is not designed to be used in a radioactive environment. REV. A 2/4 ○Electrical Characteristics (Unless otherwise noted, Ta=25℃ VCC=VREG, VIN1=VIN2=VINS=12V, VEN1=VEN2=3V, VOUT1=VOUT2=1.8V) Standard Value Parameter Symbol Unit Conditions MIN. TYP. MAX. [Whole Device] VINS Bias current IINS 1.7 2.2 mA VINS Standby current IINS_stb 0 10 μA VEN1=VEN2=0V EN Low Voltage1,2 VEN_low1,2 GND 0.3 V EN High Voltage1,2 VEN_high1,2 2.2 15 V EN Pull-down resistance1,2 REN1,2 28 48 68 kΩ [5VLinear Regulator] VREG Standby Voltage VREG_stb 0.1 V VEN1=VEN2=0V VINS=7.5V to 15V VREG Output Voltage VREG 4.8 5.0 5.2 V IREG=10mA [Under Voltage Lock Out] UVLO threshold Voltage VCC_UVLO 4.0 4.3 4.6 V VCC:Sweep up UVLO hysteresis Voltage dVCC_UVLO 100 160 220 mV VCC:Sweep down [Over Voltage Protection] OVP threshold Voltage1,2 VOVP1,2 0.86 0.96 1.06 V [H3RegTM Control] ON Time1,2 ton1,2 200 255 310 ns MIN OFF Time1,2 toffmin1,2 300 550 ns [FET Driver] High side ON resistance1,2 Ron_high1,2 75 120 mΩ Low side ON resistance 1,2 Ron_low1,2 50 75 mΩ [Current Control] Current Limit 1,2 Ilim1,2 3 4 5 A [Output Voltage Sense] FB threshold Voltage1,2 VFB1,2 0.788 0.8 0.812 V FB Input current1,2 IFB1,2 -1 1 μA VOUT=1V, VEN=0V, VOUT discharge current1,2 IVOUT1,2 5 10 mA VCC=5V [SCP] SCP threshold Voltage1,2 VSCP1,2 0.48 0.56 0.64 V REV. A 3/4 ○Block Diagram VIN VREG VINS 4 3 VREG VOUT1 BOOT1 VOUT1 25 23 EN1 EN2 EN1/UVLO EN1 UVLO Soft Start H3RegTM Controller Block SS1 22 S UVLO OCP1 SCP TSD 0.96V FB1 VCC EN2 17 Reference REF1 Block REF2 UVLO UVLO Delay OVP OVP2 TSD 29 30 31 0.96V FB2 + - 0.56V + - 0.56V 18 FB2 EN2 BOOT2 + 16 7 8 9 H3RegTM Controller Block SS2 6, 20 R 13 14 15 Driver Q OCP2 S Circuit VIN2 VIN VOUT2 SW2 VREG SW2 REF2 SS2 FB2 PGND1 VREG VINS EN2/UVLO 19 VOUT1 SW1 FB1 VOUT2 Soft Start VIN EN1 SCP Thermal Protection EN2 UVLO VIN1 - BG VOUT2 VREG + OVP1 24 26 27 28 OVP 5 EN1 1 2 32 + -+ VREG Logic Input Driver OCP1 Circuit Q R VREG SW1 REF1 SS1 FB1 5VReg + + - OVP UVLO OCP2 SCP TSD GND 10 11 12 PGND2 21 TEST ○Physical Dimension ○Pin number・Pin name PIN No. 1,2,32 3 4 5 6,20 7-9 10-12 13-15 16 17 18 19 21 22 23 24 25 26-28 29-31 Reverse Package：VQFN032V5050 Lot No. D95830 PIN name VIN1 VINS VREG VCC GND VIN2 PGND2 SW2 BOOT2 EN2 VOUT2 FB2 *7 TEST FB1 VOUT1 EN1 BOOT1 SW1 PGND1 *7 FIN *7 The TEST pin (21pin) and the FIN should be connected with the GND. (Unit : mm) REV. A 4/4 ○ NOTE FOR USE 1. Absolute maximum ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down the devices, thus making impossible to identify breaking mode, such as a short circuit or an open circuit. If any over rated values will expect to exceed the absolute maximum ratings, consider adding circuit protection devices, such as fuses. 2. GND pin voltage GND, PGND1 and PGND2 terminal should be connected the lowest voltage, under all conditions. And all terminals except SW should be under GND terminal voltage under all conditions including transient situations. If a terminal exists under GND, it should be inserting a bypass route. 3. Thermal design If IC is used on condition that the power loss is over the power dissipation, the reliability will become worse by heat up, such as reduced output current capability. Also, be sure to use this IC within a power dissipation range allowing enough of margin. 4. Input supply voltage Input supply pattern layout should be as short as possible. 5. Inter-pin shorts and mounting errors Note the direction and the miss-registration of IC enough when you install it in the set substrate. IC might destroy it as well as reversely connecting the power supply connector when installing it by mistake. Moreover, there is fear of destruction when the foreign body enters between terminals, the terminal, the power supply, and grandeur and it is short-circuited. 6. Actions in strong electromagnetic field Use caution when using the IC in the presence of a strong electromagnetic field as doing so may cause the IC to malfunction. 7. ASO When using the IC, set the output transistor so that it does not exceed absolute maximum ratings or ASO. 8. Testing on application boards When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress. Always discharge capacitors after each process or step. Always turn the IC's power supply off before connecting it to or removing it from a jig or fixture during the inspection process. Ground the IC during assembly steps as an antistatic measure. Use similar precaution when transporting or storing the IC. 9. Electrical characteristics The electrical characteristics in the Specifications may vary depending on ambient temperature, power supply voltage, circuit(s) externally applied, and/or other conditions. It is therefore requested to carefully check them including transient characteristics. OUTPUT 10. Not of a radiation-resistant design. PIN 11. In the event that load containing a large inductance component is connected to the output terminal, and generation of back-EMF at the start-up and when output is turned OFF is assumed, it is requested to insert a protection diode. 12. Regarding 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 these P layers with the N layers of other elements, creating a parasitic diode or transistor. For example, the relation between each potential is as follows: 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 can occur inevitable in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Accordingly, methods by which parasitic diodes operate, such as applying a voltage that is lower than the GND (P substrate) voltage to an input pin, should not be used. Transistor (NPN) Resistor Pin A Pin B C B Pin B E Pin A N N P N P P N P Parasitic element P substrate Parasitic element GND B N P P N C E P substrate Parasitic element GND GND GND Parasitic element Other adjacent elements 13. Ground Wiring Pattern When using both small signal and large current GND patterns, it is recommended to isolate the two ground patterns, placing a single ground point at the ground potential of application so that the pattern wiring resistance and voltage variations caused by large currents do not cause variations in the small signal ground voltage. Be careful not to change the GND wiring pattern of any external components, either. 14. Operating ranges If it is within the operating ranges, certain circuit functions and operations are warranted in the working ambient temperature range. With respect to characteristic values, it is unable to warrant standard values of electric characteristics but there are no sudden variations in characteristic values within these ranges. 15. Thermal shutdown circuit This IC is provided with a built-in thermal shutdown (TSD) circuit, which is activated when the chip temperature reaches the threshold value listed below. When TSD is on, the device goes to high impedance mode. Note that the TSD circuit is provided for the exclusive purpose shutting down the IC in the presence of extreme heat, and is not designed to protect the IC per se or guarantee performance when or after extreme heat conditions occur. Therefore, do not operate the IC with the expectation of continued use or subsequent operation once the TSD is activated. TSD ON temperature [℃] (typ.) Hysteresis temperature[℃] (typ.) 175 15 16.Output Voltage Resistor Setting Output volage is adjusted with resistor. Total 10kohm resistor is recommended so that the output voltage is not affected by the FB input current (Typ. 1uA). 17. Over Output Current Protection This IC has an over current protection (4.0A[typ]), with prevents IC from being damage by short circuit at over current. However, It is recommend not to use that continuously operates the protection circuit (For instance, always the load that greatly exceeds the output current ability is connected or the output is short-circuited, etc.) in these protection circuits by an effective one to the destruction prevention due to broken accident. 18. Heat sink (FIN) Since the heat sink (FIN) is connected with the Sub, short it to the GND. REV. A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. 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