Silicore
4-CH MOTOR DRIVER
DESCRIPTION
The D9258PH is a monolithic integrated circuit, and suitable for 4-CH motor drive...
Silicore
4-CH MOTOR DRIVER
DESCRIPTION
The D9258PH is a monolithic integrated circuit, and suitable for 4-CH motor driver which drives tracking actuator, focus actuator, sled mo tor and loading mo tor of CD/CD-ROM/DVD system, and can also drive spindle motor of CD system.
D9258PH
Outline Drawing
FEATURE
1-phase, full-wave, linear DC motor driver Output gain adjustable Built in OP-amp Built in mute function Built in level shift circuit Built in thermal shutdown function Operating range 6~13.2V
BLOCK DIAGRAM AND PIN CONFIGURATION
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SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn
1/11
CHMC
Silicore
PIN DESCRIPTION
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin No. 15 16 17 18 19 20 21 22 23 24 25 26 27 28
D9258PH
Symbol DO1.1 DO1.2 DI1.1 DI1.2 REG REO MUTE GND1 DI2.1 DI2.2 DO2.1 DO2.2 GND2 OPOUT
I/O O O I I O I I I O O O
Description Drive output Drive output Drive input Drive input
Regulator Regulator output Mute Ground 1 Drive input Drive input Drive output Drive output Ground 2 Op-amp output
Symbol OPIN(-) OPIN(+) DO3.1 DO3.2 DI3.1 DI3.2 Vcc1 Vcc2 VREF DI4.1 DI4.2 DO4.1 DO4.2 GND3
I/O I I O O I I
Description Op-amp input(-) Op-amp input(+) Drive output Drive output Drive input Drive input Supply voltage Supply voltage
I I I O O
2.5V bias voltage Drive input Drive input Drive output Drive output Ground 3
EQUIVALENT CIRCUITS
Drive input Vcc
2.5V
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Drive output
10K
50
3
10
11.8K 1 20K 0.58K VREF1 2 11 12 17 18 ...