LV8402GPEVB_TEST_PROCEDURE.PDF - 1125 KB

Test Procedure for the LV8402GPEVB Evaluation Board
Two DC Motor Driver:
LV8402GP (57.0 mm × 57.0 mm × 1.6 mm, glass epoxy 2-layer board)
One Stepper Motor Driver:
1/8/2014
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Supply Voltage:
• VCC (2.8 to 5.5V): Control voltage Supply for LSI
• VM(1.5 to 15V): Power Supply for LSI
•
Toggle Switch State:
• Upper Side: High (VCC)
• Middle: Open, enable to external logic input
• Lower Side: Low (GND)
Test Procedure for DC Motor Control:
1. Initial Condition Setting: Set the toggle switchs “Open or Low”
2. Motor Connection: Connect the Motor(s) between OUT1 and OUT2.
3. Power Supply: Supply DC voltage to VCC, VM.
4. Charge-pump check: EN1 or EN2 set “H”. Check VG pin voltage. VG=VM+VCC
5. Motor Operation: Set EN1-2, IN1- IN4 terminals according to the purpose (See
LV8402GP datasheet).
EXTR
A
H
EN1
(EN2)
H
L
L
H
L
IN1
(IN3)
H
H
L
L
H
L
-
Truth Table
IN2
OUT1
(IN4)
(OUT3)
H
Z
L
L
H
H
L
L
L
L
H
L
OUT2
(OUT4)
Z
H
L
L
L
H
L
L
Charge
pump
Mode
Stand-by
Reverse
Forward
Brake
Stand-by
Reverse
Forward
Brake
ON
OFF
ON
“-“ : Denotes a don't care value. Z: High-Impedance
DC Motor Load
VCC = 3V, VM = 6V
EN1 = “H”, IN2 = “L”
(Current waveform example “brake current”)
1/8/2014
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