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8958
VOICE COIL
MOTOR DRIVER
CURRENT SENSING
500 pF
330 kΩ
10 kΩ
R FA
+
VS
–
IN A–
–
A
+
IN A+
OUT A
I LOAD
SENSE IN+
10 kΩ
RSENSE
OUT B
SENSE IN–
IN B–
–
B
+
IN B+
RFB
4 kΩ
4 kΩ
8 kΩ
+
8 kΩ
SENSE OUT
PARKING FUNCTION
Dwg. EP-034
PARK
R1
VOLTAGE
–
A
+
R2
1.5 V
OUT A
I PARK
RSENSE
OUT B
OPTIONAL
PARK CURRENT
LIMIT
PARK
DRIVE
–
B
+
IN B–
IN B+
PARK
PWR OK
(ACTIVE HIGH)
VOUT A =
1.5 (R1 + R2)
R2
UV1
–
+
1.5 V
UV2
–
+
+
3V
–
V CC
Dwg. EP-039
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000