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ML1469
_______________________________________________________________ ML1469 4-channel BTL driver...
www.DataSheet4U.com
ML1469
_______________________________________________________________ ML1469 4-channel BTL driver for CD players
Application
CD player VCD player DVD player
Features
z z z z z Built in 3.3V (V33) or 5.0V (V50) V oltage
regulator Built in general purpose operational amplifier Built in thermal shutdown circuit Few external parts PackageAvailable : HSOP28
General Description
The ML1469 is a 4-channel BTL driver for CD player motors and actuators. An internal 3.3V or 5.0V voltage
regulator and general purpose op-amp are provided for variety of applications.
Block Diagram
ch4-OUTA ch3-OUTB SUBGND ch3-OUTA ch4-OUTB ch4-INA BIAS IN ch4-INB ch3-INB ch3-INA OP IN(+) OP IN(-) 15 + 14 OP-OUT
Vcc
28
27 D.BUF
26 D.BUF
25 10kΩ
24 1kΩ
23
22 Vcc Vcc
Vcc 21 1kΩ
20 10kΩ
19
18 D.BUF
17 D.BUF 12 ch2-OUTA
16
+ Level Shiff 13kΩ + T.S.D 10kΩ +
+
13kΩ
50kΩ 50kΩ
Driver-Mute
10kΩ (3.3kΩ) + + 13kΩ Level Shiff
Level Shiff
13kΩ
-
D.BUF
Level Shiff
D.BUF
10kΩ 2 ch1-OUTB 3 ch1- INA 4 ch1-INB
1kΩ 5 Tr-B 6 Vreg OUT 7 MUTE 8 GND
1kΩ 9 ch2-INB
10kΩ 10 ch2-INA
1 ch1-OUTA
D.BUF
11 ch2-OUTB
D.BUF
13 SUBGND
T.S.D : Thermal Shutdown Circuit D.Buf : Drive Buffer
BTL Driver for CD Player 1/5
May, 2004 V1.3
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ML1469
_______________________________________________________________
Pin Configuration
ch4-OUTA SUBGND ch4-OUTB ch3-OUTA ch3-OUTB OP IN(+) ch4-INA ch3-INB ch4-INB ch3-INA BIAS IN OP IN(-) 15 14 OP-OUT
Vcc
28
...