BA6285FS-E2 Rohm Semiconductor, BA6285FS-E2 Datasheet - Page 12

• Manufacturer Part Number: BA6285FS-E2
• Description: IC DVR REVERSE MOTOR SSOP-A16 TR
• Manufacturer: Rohm Semiconductor

Specifications of BA6285FS-E2

• Applications: DC Motor Driver
• Number Of Outputs: 1
• Current - Output: 1A
• Voltage - Supply: 4.5 V ~ 15 V
• Operating Temperature: -20°C ~ 75°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -

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BA6956AN, BA6287F, BA6285FS, BA6285AFP-Y, BA6920FP-Y
c
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2009 ROHM Co., Ltd. All rights reserved.
2) Output high voltage setting
This function optionally sets output voltage by the output high voltage setting pin and controls the motor rotating speed.
However, when the output high voltage is set to a low level, consumption at IC increases. Carry out thermal design with
sufficient margin incorporated with the power dissipation (Pd) under the actual application condition taken into account.
a) BA6287F, BA6285FS, BA6285AFP-Y
b) BA6956AN, BA6920FP-Y
The circuit diagram associated with the output high voltage setting VREF
pin is as per shown on the right. The output high and low voltages V
V
In addition, the relation of VREF voltage to output voltage is expressed by:
Therefore, when the VREF voltage condition is as follows, the output high voltage is restricted.
The circuit diagram associated with the output high
voltage setting VREF pin is as per shown on the right.
The output high and low voltages V
expressed by:
The output high voltage controllable range is expressed by:
When the VREF voltage condition is as follows, the output high voltage is restricted.
OL
V
V
(Reference values; V
( V
VREF > VM - V
V
V
V
V
V
(Reference values; V
VREF < VCC - V
VREF < VM - ( V
VREF < VM - V
VREF > VCC - V
VREF > VM - ( V
VREF > VM - V
V
V
V
are expressed by:
OH
OL
OH
OH
OH
OL
OL
OH
OH
OH
SAT(Q1)
= V
= V
= V
= VREF - ( V
= VM - V
= VREF + ( V
≈ VREF
= VCC - V
= VM - V
= VM - V
SAT(Q3)
SAT(Q6)
SAT(Q7)
+ V
F(Q2)
SAT(Q2)
SAT(Q2)
SAT(Q3)
(BA6956AN)
+ V
SAT(Q1)
SAT(Q2)
SAT(Q3)
SAT(Q3)
SAT(Q1)
SAT(Q2)
SAT(Q1)
SAT(Q2)
SAT(Q1)
) < VREF < VM - V
F(Q6)
F(Q5)
- V
(BA6920FP-Y)
SAT
SAT
- V
+ V
+ ( V
+ ( V
(BA6920FP-Y)
+ V
F(Q3)
- V
+ V
- V
+ V
+ V
F(Q2)
≈ 0.15V, V
≈ 0.15V, V
SAT(Q1)
F(Q4)
F(Q4)
F(Q4)
F(Q3)
F(Q2)
F(Q3)
F(Q2)
F(Q2)
(BA6956AN)
- V
) - ( V
- V
- V
) + ( V
+ V
) + ( V
+ V
F(Q3)
)
+ V
F(Q5)
F(Q5)
F
F
F(Q3)
F(Q3)
F(Q2)
F(Q2)
SAT(Q2)
≈ 0.7V)
OH
≈ 0.7V)
F(Q2)
F(Q2)
) - ( V
) - ( V
and V
+ V
+ V
+ V
+ V
F(Q3)
F(Q4)
F(Q4)
12/15
F(Q3)
F(Q3)
F(Q2)
OL
)
+ V
+ V
) - ( V
) - ( V
are
+ V
F(Q5)
F(Q5)
SAT(Q1)
F(Q4)
F(Q4)
VREF
) (BA6920FP-Y)
) (BA6920FP-Y)
+ V
+ V
Fig.36 BA6956AN
F(Q5)
F(Q5)
OH
Q1
Q4
Q5
and
) (BA6956AN)
) (BA6956AN)
Fig.35 BA6287F, BD6285FS, BA6285AFP-Y
Q2
Q3
Q6
VM
VCC
OUT
RNF
VREF
Q1
Fig.37 BA6920FP-Y
Technical Note
2009.04 - Rev.A
Q2
Q3
(GND, BA6287F)
Q1
Q4
Q5
VM
VREF
OUT
RNF
Q2
Q7
Q3
Q6
VM
VCC
OUT
RNF