ip4001sl Interpion semiconductor Inc., ip4001sl Datasheet - Page 6

• Manufacturer Part Number: ip4001sl
• Description: 5-ch Motor Driveic
• Manufacturer: Interpion semiconductor Inc.

Nov. 2004
- Tray motor drive part
tray motor is controlled by the pins 9 and 14. The output voltage status according to the control input conditions
are shown in the table. The magnitude of the differential output voltage is determined by the control current
generator. The control input voltage, VCTL at the pin20 approximately appears across R1 and hence the control
current,
currents, i1 and i2. The magnitude of i1 and i2 are equal each other and is the same as i. When the pin9
is high and the pin14 is low, the direction of the current flow of i1 and i2 are the same direction as shown in Fig.
5. On the contrary, when the pin9 is low and the pin14 is high, the direction of i1 and i2 are reversed. If both
the pins 9 and 14 are high or low at the same time,
brake mode. When the output is not in the brake mode, the magnitude of the differential output voltage and the
CTL-to-output transfer gain are given as in the following equations. The resistors, R1 and R2 are selected such
that Gv has a typical value of 1.0 V/V. Rb1 and Rb2 are used for setting the output voltage when the pin20 is
open circuited. The typical output voltage as the pin20 is opened is about 3.1V for the supply voltage of 8V.
G v =
V o = 2
CH5 is a forward/reverse controlled DC motor driver for tray motor. The forward or reverse movement of the
APPLICATION SUMMARY (Continued)
FWD(PIN9)
C T L
High
High
V o
Low
Low
R 2
R 1
i is VCTL/R1. This current enters into the control current distributor, which generates two output
(Rev. 1)
= 2
C T L
INPUT
R 2
R 1
REV(PIN14)
High
High
Low
Low
Fig. 3. Tray drive part
www.interpionsemi.com
5-CH MOTOR DRIVE IC
DO5+(PIN15)
Vpref
Vpref
High
Low
IP4001S
i1 and i2 become to be zero and the tray motor is in the
i =
VCTL
R1
DO5-(PIN16)
OUTPUT
Vpref
Vpref
High
Low
Vo5+ = Pref - VCTL
Vo5- = Pref + VCTL
STATUS
Reverse
Forward
Brake
Brake
R2
R1
R2
R1
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