BD8266EFV-M Datasheet, PDF (1/25 Pages) Rohm – Built-in thermal shutdown circuit

Datasheet
System motor driver for CD/DVD Player
4ch System Motor Driver
for Car Audio
BD8266EFV-M
●General Description
BD8266EFV-M is BTL driver of 5 inputs and 4 outputs
for Car CDs developed for SPINDLE motor (CH1),
SLED/LOADING motor (CH2) and coil drive for
actuator(CH3:TRAKING CH4:FOCUS).
●Features
 Drive at PowVCC=5V and 8V with wide Maximum
Output Amplitude .
 Built-in thermal shutdown circuit.
 PowVCC1 and PowVCC2 are independent,
and an efficient drive is possible.
PowVCC1 : for SPINDLE&SLED/LOADING.
PowVCC2 : for TRAKING & FOCUS.
 Switches SLED/LOADING input by CNT terminal.
 Incorporates mute function by CNT terminal and
MUTE terminal.
 Preventing the overcurrent to the load by the FOCUS
Over Current Protection (OCP) function.
 AEC-Q100 Qualified
●Applications
 Car Audio
●Key Specifications
Input voltage range:
Operating temperature range
4.5V to 10V
-40℃to +85℃
PowVCC1=PowVCC2=8V, RL=8Ω
Maximum Output Amplitude (CH1)
Maximum Output Amplitude (CH2)
Maximum Output Amplitude (CH3,CH4)
6.5V(Typ.)
7.0V(Typ.)
6.0V(Typ.)
PowVCC1=PowVCC2=5V, RL=8Ω
Maximum Output Amplitude (CH1)
Maximum Output Amplitude (CH2)
Maximum Output Amplitude (CH3,CH4)
4.1V(Typ.)
4.5V(Typ.)
3.8V(Typ.)
●Package
HTSSOP-B24
W(Typ.) D(Typ.) H(Max.)
7.80mm x 7.60mm x 1.00mm
●Typical Application Circuit
DSP
HTSSOP-B24
24
23
22
21
20
19
18
17
16
15
14
13
IN1
CNT
IN2-1 IN2-2
BIAS
IN3
IN4 MUTE PreGND PRTC VREG PRTOUT
BD8266EFV-M
PowVcc1 PowGND1 VO1(-)
1
2
3
VO1(+)
4
VO2(-)
5
VO2(+)
6
VO3(-) VO3(+)
7
8
VO4(-) VO4(+) PowGND2 PowVCC2
9
10
11
12
SPINDLE
MOTOR
CH1
SLED/LOADING
MOTOR
CH2
TRACKING
COIL
CH3
FOCUS
COIL
CH4
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
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