ICs for Compact Disc/CD-ROM Player
1
AN8787NSB
4-channel linear driver IC for CD/CD-ROM drive
n Overview
The AN8787NSB is a 4-channel driver IC that
has 2-channel of H-bridge method actuator driver
with current feedback, one channel of BTL type
traverse driver and one channel of tri-state output
type loading driver. It is optimum for actuator or
motor driver of CD/CD-ROM player. It comes with
a surface mount package that excels in heat radiat-
ing characteristic.
n Features
• Little phase delay due to current feedback method
(2-channel for actuator)
• Channels for loading motor (H-bridge system) are
available for three modes of forward rotation, re-
verse rotation and braking
• Muting SW with 2 modes: A loading channel is in
operation, and the other 3 channels are in muting;
Loading is in muting and the other 3 channels are
in operation.
• Standby switch to stop all functions
• Wide output dynamic range is available regard-
less of a reference power source on the system.
• I/O gain setting by an external resistor
• Thermal shut-down circuit built-in (with hyster-
esis)
n Applications
• CD/CD-ROM drive
• DVD/DVD-ROM drive
HSOP042-P-0400
Unit: mm
17 814
(1.315)
0.65±0.20
28 22 21
(4.8)
(6.4)(1.2)
(5.15)
18.4±0.2
8.3±0.2
2.7±0.2
0.1±0.1
10.93±0.30
15
0.35
+0.10
–0.05
0.30
+0.10 –0.05
0.8 Seating plane
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