BD68710EFV Datasheet, PDF (2/24 Pages) Rohm – High-performance, High-reliability Withstand Voltage Stepping Motor Driver

BD68710EFV
● 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]
28 NC
27 OUT2B
26 RNF2
25 RNF2S
24 OUT2A
23 NC
22 VCC2
21 NC
20 I12
19 I02
18 I11
17 PHASE2
● Block Diagram
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
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TSZ22111・15・001
2/20
TSZ02201-0P2P0B701230-1-2
10.Jun.2016 Rev.001