AT5802 Datasheet, PDF (1/12 Pages) Aimtron Technology – Preliminary 4-Channel driver + Power Controller

Features
˙4 channels of Power-Mos H-bridge drivers.
˙Built-in DC/DC converter control circuit.
˙Built-in reset circuit.
˙Built-in VG booster circuit.
˙Built-in voltage down regulator circuit.
˙Built-in On/OFF function
˙Low power consumption.
˙Direct PWM drive system.
˙QFP44 package.
AT5802
Preliminary
4-Channel driver + Power Controller
Description
The AT5802 is a 4-channel driver and power
controller for portable CD players on a single
chip. The driver block power supply uses the
on-chip switching regulator, making this
component an ideal choice for low-power sets.
Applications
Disc-man
Portable compact disc players (CDP)
Portable Mini disc player (MD)
Other portable compact disc media
Block Diagram
33
32
31
30
29
28
27
26
25
24
23
OUT1+ 34
SPRT 35
PRE-DRIVER
PRE-DRIVER
PRE-DRIVER
PRE-DRIVER
22 FIL4
21 FIL3
SOFT 36
20 FIL2
CT
37
19 FIL1
DC_IN 38
REGB 39
REGO 40
REGULATOR
SWITCH
OUTPUT
VSYS
DETECT
18 VREF
17
IN4
16
IN3
GND 41
15
IN2
PGND3 42
LG
43
VG
44
PRE-DRIVER
POWER
SUPPLY
CONVERTER
DC/DC
CONVERTER
TRIANG WAVE
RESET
14
IN1
13 RESET
POWER
OFF
STARTER
MUTE1
MUTE34
12 MUTE1
1
2
3
4
5
6
7
8
9
10 11
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
WWW: http://www.aimtron.com.tw
Fax: [phone]
Email: [e-mail]
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