전자부품 데이터시트 검색엔진 |
|
BA6920FP-Y 데이터시트(PDF) 5 Page - Rohm |
|
BA6920FP-Y 데이터시트(HTML) 5 Page - Rohm |
5 / 9 page 5/8 ●IC Operation BA6920FP-Y(BA6219BFP-Y) 1) I/O mode of input block FIN (IN1) and RIN (IN2) A pin where control signals are input. Each mode operates as explained below. When the FIN (IN1) is set to high and RIN (IN2) is set to low, the forward rotation mode will be set and a current will flow from OUT1 to OUT2. When the FIN (IN1) is set to low and RIN (IN2) is set to high, the reverse rotation mode will be set and a current will flow from OUT2 to OUT1. When both FIN (IN1) and RIN (IN2) are set to high, the brake mode will be set. At that time, the output transistor on the high side will be turned off to stop the supply of the motor drive current while the output transistor on the low side will be turned on to absorb the motor back EMF to brake the motor. When both FIN (IN1) and RIN (IN2) are set to low, OUT1 and OUT2 will be both open potential and the motor will stop. 2) High output voltage setting function With this function, the output voltage can be set through the high output voltage setting pin in order to control the rotation speed of the motor. If the high output voltage is set to a lower value, the power consumption of the IC will become high. Consider the power dissipation (Pd) of the IC under actual operating conditions, and implement thermal designing with a sufficient margin. 2-1. BA6219BF-Y (See Fig.14) High output voltage is expressed by the following equation. VoutH (high output voltage) = VR + {VF(Q5) + VF (Q6) + VF (Q7) - VF (Q2) -VF (Q3) - VF (Q4)} ≒VR +ΔVF (VF is the base-emitter voltage in the forward direction) Although ΔVF depends on the output current, Vo is almost VR. The maximum value VoutHmax of high output voltage that can be set is as follows. VoutHmax < VCC1 - Vsat (Q1) - VF (Q2) - VF (Q3) - VF (Q4) ≒VCC1 - 2.5 V Relation of VCC1, VCC2, and VR VCC1, VCC2, and VR should be set as follows. VR < VCC2 - Vsat (Q3) + VF (Q3) + VF (Q2) - {VF (Q5) + (Q6) + (Q7)} ≒VCC2 - 1 V Operating Conditions Pin Voltage Unit VCC1 8 ~ 18 V VCC2 8 ~ 18 V VR Shown above - 2-2. BA6920FP-Y (See Fig. 16) High output voltage is expressed by the following equation: VoutH (high output voltage) = Vref voltage + {VF (Q2) + VF( Q3)} - {VF(Q4) + VF (Q5)} ≒Vref voltage +ΔVF (VF is the base-emitter voltage in the forward direction) Although ΔVF depends on the output current, Vo is almost VR. The VOH is beyond control if the Vref value is higher than the above, and determined by the voltage condition of VCC and VM. For example, when Vref = VCC = VM, VOH≒VCC - Vsat (Q1) - VF (Q4) -VF (Q5) ≒VCC - 1.7 V Relation of VCC, VM, and VREF VCC1, VCC2, and VR should be set as follows. VREF < VM - Vsat (Q5) + VF (Q5) + VF (Q4) - {VF (Q2) + (Q3)} ≒ VM - 0.3 V Operating conditions pin Voltage Unit VCC 6.5 ~ 34 V VM 6.5 ~ 34 V VREF Shown above - 3 ) Selection of forward or reverse rotation To change the rotation direction of the motor in operation, be sure to brake or open the motor current on time. In the above case, Braking: The braking time or over. The braking time is defined as the time of setting the output low level voltage to the GND potential or below, when the brake operates. Opening: A period of 1 ms or over is recommended. Fig.15 Output Voltage Control Range VR (VREF) voltage High output voltage VCC1 VCC2 Q1 Q2 Q5 Q6 Q7 Q3 Q4 OUT VR Fig.14 Q1 Q2 Q3 Q4 Q5 OUT VREF VM VCC Fig.16 |
유사한 부품 번호 - BA6920FP-Y_05 |
|
유사한 설명 - BA6920FP-Y_05 |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |