BD8229EFV-E2

System Motor driver IC Series for CD / DVD Players 4ch System Motor Driver IC BD8229EFV No.10011EAT01 ●Description BD8229EFV is BTL driver of 5 input 4 output developed for driving Spindle motor, Sled/Loading motor and the actuator coil. The hysteresis comparator for reset is built in, and the number of parts can reduce. ●Features 1) 4CH BTL Driver 2) HTSSOP-B24 power package is adopted, the set is miniaturized. 3) Has a wide dynamic range（PreVcc=PowVcc=8V,RL=8Ω, 6.0Ｖ(typ.)） 4) Built-in thermal-shut down circuit 5) Separating Vcc into Pre and Power (Power divides into CH1/2 and CH3/4), can make better Power efficiency 6) Switches CH2 input by Control input terminal (CNT). 7) Incorporates mute function by CNT terminal and mute terminal 8) Built in hysteresis comparator for reset ●Applications Car Audio ●Absolute Maximum Ratings Parameter Power supply voltage Input terminal voltage 1 Input terminal voltage 2 Power dissipation Operating temperature range Storage temperature Junction temperature *1 *2 *3 *4 Symbol PreVcc,PowVcc1, PowVcc2 Vin1 Vin2 Pd Topr Tstg Tjmax *3 *4 Limits 15 PreVCC PowVCC2 1.1 *1 Unit V V V W ℃ ℃ ℃ 4.0*2 -40~+85 -55~+150 +150 70mm×70mm×1.6mm,occupied copper foil is less than 3%,glass epoxy standard board) mounting. Reduce power by 11.6mW for each degree above 25℃. Exclusive standard board mounting. Reduce power by 32.0mW for each degree above 25℃. Vin1 Application terminal：IN1, CNT, IN2-1, IN2-2, BIAS, IN3, IN4, MUTE Vin2 Application terminal：RSTDET ●Recommended Operating Conditions Parameter PRE part Power supply DC motor system power supply Actuator system power supply *5 Symbol PreVcc PowVcc1 PowVcc2 Limits 4.5~14 *5 *3 Unit V V V 4.5~PreVCC 4.5~PreVCC*3 Set the power supply voltage taking allowable dissipation into considering. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/11 2010.02 - Rev.A BD8229EFV Technical Note ●Electrical Characteristics （Unless otherwise noted,Ta=25℃, PreVcc=PowVcc=8V, BIAS=1.65V, RL=8Ω） Limits Parameter Symbol Unit Condition MIN TYP MAX Quiescent dissipation current IQ － 30 45 mA At no-load < Driver > Output offset voltage (CH1,2) Voof 12 -100 0 100 mV Output offset voltage (CH3,4) Voof 34 -50 0 50 mV Maximum output amplitude (CH1,2) VOM 12 5.4 6.0 － V Maximum output amplitude (CH3,4) VOM 34 4.7 5.3 － V Closed circuit voltage gain (CH1,2) Gv 12 24.0 25.7 27.4 dB Closed circuit voltage gain (CH3,4) Gv 34 15.5 17.5 19.5 dB MUTE terminal low level input voltage VML － － 0.5 V MUTE terminal high level input voltage VMH 2.0 － － V CNT terminal low level input voltage VCNTL － － 0.5 V CNT terminal high level input voltage VCNTH 2.0 － － V LDIN terminal voltage（SLED input） VLDIN － 0.1 0.3 V CNT=’L’ Internal bias voltage VBIN 1.53 1.65 1.77 V CNT=’H’ < Reset > Reset release voltage VDET 1.19 1.25 1.31 V Hysteresis voltage VHYS 5 25 55 mV Detection terminal outflow current ICMP － 50 150 nA RSTOUT output Low voltage VRSTOUT － 0.1 0.3 V 3.3VPull-up（10kΩ） ●Thermal Derating Curve ④4.0Ｗ ③2.8Ｗ ②1.7Ｗ ①1.1Ｗ Rating for 70mm×70mm(size), 1.6mm(thickness), copper foil occupation ratio less than 3%, and use of glass-epoxy substrate. Fig.1 Power dissipation www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 2/11 2010.02 - Rev.A BD8229EFV ●Package Outlines Technical Note D8229EFV Lot.No HTSSOP-B24(Unit：mm) Fig.2 Package Outlines www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 3/11 2010.02 - Rev.A BD8229EFV RSTDET ●Block Diagram Technical Note RSTOUT PowGND2 PreGND 24 23 22 21 20 19 18 17 16 GND 15 14 13 20kΩ CNT 100kΩ 20kΩ 20kΩ 47kΩ 47kΩ MUTE PreVcc BIAS 100kΩ 100kΩ 47kΩ 47kΩ Pre GND 1.25V T.S.D LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT PowVcc1 PowGND1 CH1 CH2 CH3 CH4 PowGND2 PowVcc2 VO1(+) VO2(+) VO3(+) PowGND1 VO4(+) VO1(-) VO2(-) VO3(-) VO4(-) PowVcc1 1 2 3 4 5 6 7 8 9 10 11 12 T.S.D：Thermal Shut-Down Fig.3:Block Diagram ○Pin Descriptions No. Symbol 1 2 3 4 5 6 7 8 9 10 11 12 PowVcc1 PowGND1 VO1(-) VO1(+) VO2(-) VO2(+) VO3(-) VO3(+) VO4(-) VO4(+) PowGND2 PowVcc2 Description CH1,2 power supply terminal power GND1 Driver CH1 negative output Driver CH1 positive output Driver CH2 negative output Driver CH2 positive output Driver CH3 negative output Driver CH3 positive output Driver CH4 negative output Driver CH4 positive output power GND2 CH3,4 power supply terminal No. 13 14 15 16 17 18 19 20 21 22 23 24 Symbol PreVcc RSTOUT RSTDET PreGND MUTE IN4 IN3 BIAS IN2-2 IN2-1 CNT IN1 Description Pre,RESET power supply terminal Reset output Reset detection comparator input Pre, Reset Block GND MUTE terminal CH4 input CH3 input BIAS input terminal CH2-2 input CH2-1 input Control input terminal IN1 input www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4/11 2010.02 - Rev.A PowVcc2 PreVcc MUTE IN2-1 IN2-2 BIAS CNT IN1 IN3 IN4 1.65V BD8229EFV Technical Note ●Functional Description 1.The driver can put the mute by switching the terminal MUTE and the terminal CNT to High level and Low level. The table below shows the logic. INPUT MUTE H H L L CNT H L H L CH1,3,4 ACTIVE ACTIVE MUTE MUTE OUTPUT CH2 LD ON SL ON LD ON MUTE SL : SLED LD : Loading 2.The mute works when the bias terminal (20PIN) becomes 0.7V(typ.) or less. Please set it to 1.3V or more in the state of use normally.(However, the mute doesn't work as for CH2 at CNT='H'. ) 3.When the power-supply voltage becomes 3.8V(typ.) or less, the output terminal becomes the state of the mute. When the power-supply voltage rises up to 4.0V again, the driver part circuit stands up 4.The threshold voltage of PowVcc2 reset can be calculated by the following expressions. Vin PowVcc2 RSTOUT RVCC 10kΩ R1 RSTDET + VDET V R2 1.25V /1.225V Vin = R1+ R2 × VDET R2 ・The threshold voltage of PowVcc2 reset can be changed by external resistance R1 and R2. R1 and R2 recommend the resistance of 100kΩ or less respectively. ・Please make below the voltage of PowVcc2(PIN12) the voltage of the RSTOUT output terminal that is the pull-up (RVCC). ・The characteristic chart of RSTDET and RSTOUT is shown as follows. RVCC RSTOUT(V) Hysterisis 25 mV(typ. ） 1.25V（ typ. ） RSTDET （V） www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 5/11 2010.02 - Rev.A BD8229EFV ●Example of Recommended Circuit BIAS SP IN SL/LD SL IN LD IN ACT IN ACT IN MUTE RSTDET RESET 出力 Technical Note PreVcc 24 20kΩ 23 20 kΩ CNT 100kΩ 22 1.65V 100kΩ 21 20 kΩ 20 19 47kΩ 18 47kΩ 17 16 Pre GND 15 14 13 PreVcc BIAS 100kΩ 47kΩ MUTE 47 kΩ Pre GND 1.25 V PowVcc2 T.S.D LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT PowVcc1 PowGND1 CH1 CH2 CH3 CH4 PowGND2 PowVcc2 1 2 3 M 4 5 M 6 7 8 9 10 11 12 PowVcc PowVcc Fig.4:Application circuit www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 6/11 2010.02 - Rev.A BD8229EFV ●The Picture of Application Board Wire Connection（Reference for BD8229EFV） Technical Note Fig.5. application board wire connection www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 7/11 2010.02 - Rev.A BD8229EFV ●The Picture of Application Board Pattern（Reference for BD8229EFV） Technical Note BD8229EFV Top Silkscreen Overlay Top Layer Bottom Silkscreen Overlay Bottom Layer www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 8/11 2010.02 - Rev.A BD8229EFV ●Terminal Equivalent Circuit 20k 47k 50k 50k 47k ×2 Technical Note 20k 47k positive output 10k 10k 20k negative output 20k 10k 100k 20k 100k 100k 100k 100k 100k 20k 20k positive output 10k negative output 10k 25 5k ※Resistance in the above-mentioned terminal equivalent circuit chart is 25℃, and a value at typical. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 9/11 2010.02 - Rev.A BD8229EFV ●Notes for use Technical Note 1.Absolute maximum ratings We are careful enough for quality control about this IC. So, there is no problem under normal operation, excluding that it exceeds the absolute maximum ratings. However, this IC might be destroyed when the absolute maximum ratings, such as impressed voltages or the operating temperature range, is exceeded, and whether the destruction is short circuit mode or open circuit mode cannot be specified. Please take into consideration the physical countermeasures for safety, such as fusing, if a particular mode that exceeds the absolute maximum rating is assumed. 2.Reverse polarity connection Connecting the power line to the IC in reverse polarity (from that recommended) will damage the part. Please utilize the direction protection device as a diode in the supply line and motor coil line. 3.Power supply line Due to return of regenerative current by reverse electromotive force, using electrolytic and ceramic suppress filter capacitors (0.1μF) close to the IC power input terminals (Vcc and GND) iare recommended. Please note the electrolytic capacitor value decreases at lower temperatures and examine to dispense physical measures for safety. And, for ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of wiring. 4.GND line Please keep the GND line the lowest potential always, and check the GND voltage when transient voltages are connected to the IC. 5.Thermal design Do not exceed the power dissipation (Pd) of the package specification rating under actual operation, and please design enough temperature margins. This product has exposed the frame to the back side of the package, but please note that it is assumed to use heat radiation efficiency by the heat radiation for this part. Please take the heat radiation pattern on not only the surface of the substrate but also the back of the substrate widely. 6.Short circuit mode between terminals and wrong mounting Do not mount the IC in the wrong direction and displacement, and be careful about the reverse-connection of the power connector. Moreover, this IC might be destroyed when the dust short the terminals between them or GND. 7.Radiation Strong electromagnetic radiation can cause operation failures. 8.ASO (Area of Safety Operation) Do not exceed the maximum ASO and the absolute maximum ratings of the output driver. 9.TSD (Thermal Shut-Down) The TSD is activated when the junction temperature (Tj) exceeds Tjmax, and the output terminal is switched to OPEN. The guarantee and protection of set are not purpose. Therefore, please do not use this IC after TSD circuit operates, nor use it for assumption that operates the TSD circuit. 10.Capacitor between output driver and GND If a large capacitor is connected between the output driver and GND, this IC might be destroyed when Vcc becomes 0V or GND, because the electric charge accumulated in the capacitor flows to the output driver. Please set said capacitor to smaller than 0.1μF. 11.Inspection by the set circuit board The stress might hang to IC by connecting the capacitor to the terminal with low impedance. Then, please discharge electricity in each and all process. Moreover, when attaching or detaching from jig in the inspection process, please turn off the power before mounting the IC, and turn on after mounting the IC, and vice versa. In addition, please take into consideration the countermeasures for electrostatic damage, such as giving the earth in assembly process, transportation or preservation. 12.Input terminal + This IC is a monolithic IC, and has P isolation and P substrate for the element separation. Therefore, a parasitic PN junction is firmed in this P-layer and N-layer of each element. For instance, the resistor or the transistor is connected to the terminal as shown in the figure below. When the GND voltage potential is greater than the voltage potential at Terminals A on the resistor, at Terminal B on the transistor, the PN junction operates as a parasitic diode. In addition, the parasitic NPN transistor is formed in said parasitic diode and the N layer of surrounding elements close to said parasitic diode. These parasitic elements are formed in the IC because of the voltage relation. The parasitic element operating causes the interference of circuit operation, then the wrong operation and destruction. Therefore, please be careful so as not to operate the parasitic elements by impressing to input terminals lower voltage than GND (P substrate). Please do not apply the voltage to the input terminal when the power-supply voltage is not impressed. Moreover, please impress each input terminal lower than the power-supply voltage or equal to the specified range in the guaranteed voltage when the power-supply voltage is impressing. Resistor Terminal-A Terminal-A Terminal-B C B E B Parasitic element C E P+ P P+ Surrounding elements Parasitic element GND Parasitic element GND Parasitic element GND GND Transistor(NPN) Terminal-B P+ P P+ P-Substrate P-Substrate Simplified structure of IC 13Earth wiring pattern If small signal GND and large current GND exist, disperse their pattern. In addition, for voltage change by pattern wiring impedance and large current not to change voltage of small signal GND, each ground terminal of IC must be connected at the one point on the set circuit board. As for GND of external parts, it is similar to the above-mentioned. 14Please make below the voltage of PowVcc2(PIN12) the voltage of the RSTOUT output terminal that is the pull-up (RVCC). www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10/11 2010.02 - Rev.A BD8229EFV ●Ordering part number Technical Note B D 8 Part No. 2 2 9 E F V - E 2 Part No. Package EFV: HTSSOP-B24 Packaging and forming specification E2: Embossed tape and reel SSOP-B24 7.8 ± 0.2 (MAX 8.15 include BURR) 24 13 Tape Quantity Direction of feed 0.3Min. Embossed carrier tape 2000pcs E2 The direction is the 1pin of product is at the upper left when you hold 7.6 ± 0.3 5.6 ± 0.2 ( reel on the left hand and you pull out the tape on the right hand ) 1 12 1.15 ± 0.1 0.15 ± 0.1 0.1 0.65 0.22 ± 0.1 0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 11/11 2010.02 - 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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