LV8740V Datasheet, PDF (6/23 Pages) Sanyo Semicon Device – PWM Current Control Stepping Motor Driver

Pin Functions
Pin No.
Pin name
1
VG
2
VM
3
CP2
4
CP1
5
VREG5
6
ATT2
7
ATT1
8
EMO
9
CEM
10
EMM
11
RCHOP
12
MONI
13
RST
14
STP/DC22
15
FR/DC21
16
MD2/DC12
17
MD1/DC11
18
DM
19
OE
20
ST
21
VREF
22
SGND
23, 24
OUT2B
25
PGND2
28, 29
VM2
30, 31
RF2
32, 33
OUT2A
34, 35
OUT1B
36, 37
RF1
38, 39
VM1
42
PGND1
43, 44
OUT1A
26, 27
NC
40, 41
LV8740V
Description
Charge pump capacitor connection pin
Motor power supply connection pin
Charge pump capacitor connection pin
Charge pump capacitor connection pin
Internal power supply capacitor connection pin
Motor holding current switching pin
Motor holding current switching pin
Output short-circuit state warning output pin
Pin to connect the output short-circuit state detection time setting capacitor
Overcurrent mode switching pin
Chopping frequency setting resistor connection pin
Position detection monitor pin
Reset signal input pin
STM STEP signal input pin/DCM2 output control input pin
STM forward/reverse rotation signal input pin/DCM2 output control input pin
STM excitation mode switching pin/DCM1 output control input pin
STM excitation mode switching pin/DCM1 output control input pin
Drive mode (STM/DCM) switching pin
Output enable signal input pin
Chip enable pin
Constant current control reference voltage input pin
Signal system ground
Channel 2 OUTB output pin
Channel 2 Power system ground
Channel 2 motor power supply connection pin
Channel 2 current-sense resistor connection pin
Channel 2 OUTA output pin
Channel 1 OUTB output pin
Channel 1 current-sense resistor connection pin
Channel 1 motor power supply pin
Channel 1 Power system ground
Channel 1 OUTA output pin
No Connection
(No internal connection to the IC)
No.A1864-6/23