BA6219B Rohm Semiconductor, BA6219B Datasheet - Page 5

• Manufacturer Part Number: BA6219B
• Description: IC DRIVER REVERSE MOTOR HSIP10
• Manufacturer: Rohm Semiconductor

Specifications of BA6219B

• Applications: DC Motor Driver
• Number Of Outputs: 1
• Current - Output: 1.7A
• Voltage - Supply: 8 V ~ 18 V
• Operating Temperature: -20°C ~ 75°C
• Mounting Type: Through Hole
• Package / Case: 10-SIP + Tab
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -

FOperation notes
(1)
the output voltage setting pin (Pin 4) is shown in Fig. 7.
The maximum output voltage (V
V
For the condition of V
V
and the pin 4 voltage is given by :
V
(Q3)
Though V
nearly equal to V
(2)
The thermal shutdown circuit turns off the driver output
if the chip temperature rises to about 180_. The shut-
down signal is not latched.
(3)
When the motor stops or starts, a rush current flows in the
VCC and GND lines. Depending on the way of connect-
ing a power supply decoupling capacitor (100 F), the
control input voltage may become a negative value or the
supply voltage may drop to below the output voltage.
This can cause erratic operations due to parasitic effects.
Make sure that pin voltages will not exceed the supply
voltage by more than 0.3V or will not become less than
the GND pin voltage by more than 0.3V.
(4)
shown in the output circuit diagram of Fig. 8. Their values
should be kept within the following ranges.
Operating supply voltage ranges
402
Motor driver ICs
OMAX.
OMAX.
O
=V
) V
A schematic for the internal circuit associated with
Thermal shutdown circuit
Power supply impedance
VCC1, VCC2, and VR are related to each other as
R
=V
, the relationship between the output voltage (V
) {(V
BE (Q4)
CC1
BE
* V
BE (Q5)
)}
depends on the output power supply, V
SAT (Q1)
R.
) V
BE (Q6)
* V
R
being equal to or less than
BE (Q2)
) V
OMAX.
BE (Q7)
* V
) is given by :
) * (V
BE (Q3)
* V
BE (Q2)
BE (Q4)
) V
O
O
BE
is
)
(1) When the output voltage control pin (pin 4) is used
V
* 2.5V
V
V
(2) When the output voltage control pin (pin 4) is not
(5)
R
R
BE (Q6)
< V
< V
used, V
Input circuit
CC1
CC2
) V
* (V
* {(V
R
BE (Q7)
is either short-circuited to V
SAT (Q1)
SAT (Q3)
)}
BA6219B / BA6219BFP-Y
) V
V
* V
CC2
BE (Q5)
BE (Q3)
* 1V
) V
* V
BE (Q6)
BE (Q2)
) V
CC1
) ) (V
or left OPEN.
BE (Q7)
BE (Q5)
)
V
CC1
)