L297D STMicroelectronics, L297D Datasheet - Page 3
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L297D
Manufacturer Part Number
L297D
Description
IC STEPPER MOTOR CTRLR 20-SOIC
Manufacturer
STMicroelectronics
Type
Stepper Motor Controller/Driverr
Specifications of L297D
Applications
Stepper Motor Controller
Number Of Outputs
4
Voltage - Supply
4.75 V ~ 7 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
7 V
Supply Current
80 mA
Mounting Style
SMD/SMT
Current, Input, High Level
10 uA (Max.)
Current, Input, Low Level
100 uA (Typ.)
Number Of Pins
20
Package Type
SO20
Power Dissipation
1 W (Max.)
Temperature, Operating, Maximum
150 °C
Temperature, Operating, Minimum
-40 °C
Voltage, Input
7 V (Max.)
Voltage, Input, High Level
2.0 V (Min.)
Voltage, Input, Low Level
0.6 V (Max.)
Voltage, Output, High Level
3.9 V (Min.)
Voltage, Output, Low Level
0.4 V (Max.)
Voltage, Supply
7 V (Max.)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-1393-5
497-1393-5
497-3623
497-3623-5
497-1393-5
497-3623
497-3623-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L297D
Manufacturer:
STMicroelectronics
Quantity:
356
Company:
Part Number:
L297D
Manufacturer:
DENSO
Quantity:
6 235
Part Number:
L297D
Manufacturer:
ST
Quantity:
20 000
Part Number:
L297D013TR
Manufacturer:
ST
Quantity:
20 000
PIN FUNCTIONS - L297/1 - L297D
N
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
CONTROL
CW/CCW
ENABLE
CLOCK
HOME
SENS
SENS
NAME
SYNC
INH1
INH2
GND
OSC
V
V
C
D
A
B
ref
s
2
1
Output of the on-chip chopper oscillator.
The SYNC connections The SYNC connections of all L297s to be
synchronized are connected together and the oscillator
components are omitted on all but one. If an external clock source
is used it is injected at this terminal.
Ground connection.
Open collector output that indicates when the L297 is in its initial
state (ABCD = 0101).
The transistor is open when this signal is active.
Motor phase A drive signal for power stage.
Active low inhibit control for driver stage of A and B phases.
When a bipolar bridge is used this signal can be used to ensure
fast decay of load current when a winding is de-energized. Also
used by chopper to regulate load current if CONTROL input is low.
Motor phase B drive signal for power stage.
Motor phase C drive signal for power stage.
Active low inhibit control for drive stages of C and D phases.
Same functions as INH1.
Motor phase D drive signal for power stage.
Chip enable input. When low (inactive) INH1, INH2, A, B, C and D
are brought low.
Control input that defines action of chopper.
When low chopper acts on INH1 and INH2; when high chopper
acts on phase lines ABCD.
5V supply input.
Input for load current sense voltage from power stages of phases
C and D.
Input for load current sense voltage from power stages of phases
A and B.
Reference voltage for chopper circuit. A voltage applied to this pin
determines the peak load current.
An RC network (R to V
determines the chopper rate. This terminal is connected to ground
on all but one device in synchronized multi - L297 configurations. f
Clockwise/counterclockwise direction control input.
Physical direction of motor rotation also depends on connection
of windings.
Synchronized internally therefore direction can be changed at any
time.
Step clock. An active low pulse on this input advances the motor
one increment. The step occurs on the rising edge of this signal.
1/0.69 RC
CC
, C to ground) connected to this terminal
FUNCTION
L297
3/11