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Rohm Semiconductor Electronic Components Datasheet

BD68715EFV Datasheet

High-reliability Withstand Voltage Stepping Motor Driver

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Datasheet
36VHigh-performance,
High-reliability Withstand Voltage
Stepping Motor Driver
BD68715EFV
General Description
BD68715EFV is a bipolar low-consumption driver that
driven by PWM current. Rated power supply voltage of
the device is 36 V, and rated output current is 1.5 A.
PARA-IN driving mode is adopted for input interface,
and excitation mode is corresponding to FULL STEP
mode, HALF STEP mode (2 types) and QUARTER
STEP mode via a built-in DAC. In terms of current
decay, the FAST DECAY/SLOW DECAY ratio may be
set without any limitation, and all available modes may
be controlled in the most appropriate way. In addition,
the power supply may be driven by one single system,
which simplifies the design.
Key Specifications
Range of power supply voltage
1928 [V]
Rated output current (continuous)
1.5 [A]
Rated output current (peak value)
2.0 [A]
Range of operating temperature
-25+85 []
Output ON resistance (total of
0.95 [Ω] (Typ.)
upper and lower resistors)
Package
W(Typ.) x D(Typ.)x H(Max.)
HTSSOP-B28
9.70mm x 6.40mm x 1.00mm
Features
Rated output currentDC1.5A
Low ON resistance DMOS output
PARA-IN drive mode
PWM constant current (other oscillation)
Built-in spike noise cancel function (external noise
filter is unnecessary)
Full-, half (two kinds)-, quarter-step functionality
Freely timing excitation mode switch
Current decay mode switch
linearly variable FAST/SLOW DECAY ratio
Normal rotation & reverse rotation switching
function
Power save function
Built-in logic input pull-down resistor
Power-on reset function
Thermal shutdown circuit (TSD)
Over-current protection circuitOCP
Under voltage lock out circuit (UVLO)
Over voltage lock out circuit (OVLO)
Ghost Supply Prevention (protects against
malfunction when power supply is disconnected)
Adjacent pins short protection
Microminiature, ultra-thin and high heat-radiation
(exposed metal type) package
Applications
PPC, multi-function printer, laser beam printer, and
ink-jet printer
Monitoring camera and WEB camera
Sewing machine
Photo printer, FAX, scanner and mini printer
Toy and robot
Typical Application circuit
PHASE1 15
PHASE2 17
I01 16
I11 18
I02 19
I12 20
VREF 13
CR 10
MTH 12
9 GND
14 PS
7 VCC1
OUT1A
5
2
OUT1B
3
RNF1
4 RNF1S
22 VCC2
24 OUT2A
27 OUT2B
26
RNF2
25 RNF2S
GND
1
Figure.1 Application circuit
Product structuresilicon monolithic integrated circuit It is not the radiation-proof design for this product.
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
1/20
TSZ02201-0P2P0B701220-1-2
10.Jun.2016 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD68715EFV Datasheet

High-reliability Withstand Voltage Stepping Motor Driver

No Preview Available !

BD68715EFV
Pin Configuration
GND 1
OUT1B 2
RNF1 3
RNF1S 4
OUT1A 5
NC 6
VCC1 7
NC 8
GND 9
CR 10
NC 11
MTH 12
VREF 13
PS 14
[TOP VIEW]
Block Diagram
28 NC
27 OUT2B
26 RNF2
25 RNF2S
24 OUT2A
23 NC
22 VCC2
21 NC
20 I12
19 I02
18 I11
17 PHASE2
PHASE1 15
PHASE2 17
I01 16
I11 18
I02 19
I12 20
Translator
TSD
OVLO
RESET
OCP
UVLO
VREF 13
2bit DAC
RNF1S
RNF2S
Blank time
PWM control
CR 10
OSC
MTH 12
Mix decay
control
Regulator
9 GND
14 PS
7 VCC1
OUT1A
5
2
OUT1B
3
RNF1
4 RNF1S
22 VCC2
24 OUT2A
27 OUT2B
26
RNF2
25 RNF2S
GND
1
16 I01
Figure.3 Block Diagram
15 PHASE1
Figure.2 Pin configuration
Pin Description
Pin No. Pin name
Function
1
GND
Ground terminal
Pin No.
15
2 OUT1B H bridge output terminal
16
3
RNF1
Connection terminal of resistor for
output current detection
17
4
RNF1S
Input terminal of current limit
comparator
18
5 OUT1A H bridge output terminal
19
6 NC Non connection
20
7
VCC1
Power supply terminal
21
8 NC Non connection
22
9
GND
Ground terminal
23
10
CR
Connection terminal of CR for setting
chopping frequency
24
11 NC Non connection
25
12
MTH
Current decay mode setting terminal
26
13
VREF
Output current value setting terminal
27
14 PS Power save terminal
28
Pin name
Function
PHASE1 Phase selection terminal
I01 VREF division ratio setting terminal
PHASE2 Phase selection terminal
I11 VREF division ratio setting terminal
I02 VREF division ratio setting terminal
I12 VREF division ratio setting terminal
NC Non connection
VCC2 Power supply terminal
NC Non connection
OUT2A H bridge output terminal
RNF2S
RNF2
OUT2B
Input terminal of current limit comparator
Connection terminal of resistor for output
current detection
H bridge output terminal
NC Non connection
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/20
TSZ02201-0P2P0B701220-1-2
10.Jun.2016 Rev.001


Part Number BD68715EFV
Description High-reliability Withstand Voltage Stepping Motor Driver
Maker ROHM
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