PWM driver
ICs for Compact Disc/CD-ROM Player
AN8746SA
PWM driver IC for portable CD player
s Overview
The AN8746SA is a 4-channel...
Description
ICs for Compact Disc/CD-ROM Player
AN8746SA
PWM driver IC for portable CD player
s Overview
The AN8746SA is a 4-channel actuator/motor drive IC by DMOS direct PWM method for a portable CD player.
11.0±0.3 32 17
Unit: mm
s Features
RON = 1.8 Ω (typ.) Supply voltage range (Control block: 2.0 V to 3.6 V, power block: 1.2 V to 3.6 V) Current at standby (Control block: 1 µA or less, power block: 1 µA or less) With an output pin of monitoring 1/2 of the power supply voltage
0.65±0.10
1.5±0.2
1
16
6.1±0.3
8.1±0.3
(0.5)
0.2+0.10 –0.05
(0.625)
0.65
0.3 –0.05
Seating plane
SSOP032-P-0300
s Applications
Portable CD player
s Block Diagram
PGND4 PGND3
0.1±0.1
+0.10
0.65±0.10
VGO 18 15 N.C.
VM4
32
31
30
29
28
27
26
25
24
23
22
21
20
19
Logic circuit Reset TSD Predriver H bridge H bridge
Logic circuit Predriver VG limiter
VBG
Predriver
VM1 monitor Logic circuit
H bridge
H bridge
Predriver Logic circuit
10
11
12
13
14
MON
Fi1
Ri1
Ro1
PGND1
Fo1
Fo2
PGND2
Ro2
Ri2
Fi2
GND
VM1
VC
VM2
16
1
2
3
4
5
6
7
8
9
17
VM3
Ro4
Ro3
VGI
Fo4
Fo3
Ri4
Ri3
AC
Fi4
Fi3
PC
1
AN8746SA
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VM1 VC MON Fil Ril Rol PGND1 Fo1 Fo2 PGND2 Ro2 Ri2 Fi2 GND N.C. VM2 Description Ch. 1 power supply Control circuit power supply VM1 monitor Ch. 1 forward direction input pin Ch. 1 reverse direction input pin Ch. 1 reverse direction output pin Ch. 1 power ground Ch. 1 ...
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