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Rohm Semiconductor Electronic Components Datasheet

BD7959EFV Datasheet

Silicon Monolithic Integrated Circuit

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Structure
Silicon Monolithic Integrated Circuit
Product series
Type
9ch Power Driver for CD-ROM,DVD-ROM
BD7959EFV
Function
特長
The spindle driver and the SLED / SA driver can highly effective drive with
PWM drive system.
The actuator driver and the loading driver are liner BTL drive system and
are achieving a low noise power.
Absolute maximum ratings
Parameter
Symbol
POWER MOS power supply voltage
Preblock/BTL powerblock power supply voltage
SPVM,
SL/SAVM
Vcc, AVM
PWM control block power supply voltage
DVcc
Pick-up pull charge capacitor terminal voltage
CHG_C
www.DataSheet4U.cPoomwer dissipation
Operating temperature range
Pd
Topr
Storage temperature
Tstg
Joint part temperature
Tjmax
#1 POWER MOS output terminals (3542, 4547pin) is contained.
#2 Reduce power by 16mW for each degree above 25.
Limits
15 #1
15
7
15
2.0 #2
-2075
-55150
150
Unit
V
V
V
V
W
Recommended operating conditions(Ta=-20+75)
Set the power supply voltage taking allowable dissipation into considering
Parameter
Symbol
MIN TYP MAX Unit
Spindle driver powerblock Power supply voltage
Sled / SA motor driver powerblock Power supply voltage
Preblock / Loading driver powerblock Power supply voltage
SPVM
SL/SAVM
Vcc
10.8
VCC #3
VCC #3
12
13.2
V
V
V
Actuator driver powerblock Power supply voltage
AVM
4.3 5.0 5.5
V
PWM control block power supply voltage
Spindle driver output current
DVcc
Iosp
4.3 5.0 5.5
V
1.2 2.5#4 A
Actuator, sled / SA motor, loading motor driver output current
Ioo
0.5 0.8 A
#3 Set the same supply voltage to Vcc and SPVM, SL/SAVM
#4 The current is guaranteed 3.0A in case of the Short-circuit braking mode and the current which is turned on/off in a
duty-ratio of less than 1/10 with a maximum on-time of 5msec.
This product isn’t designed for protection against radioactive rays.
Status of this document
The Japanese version of this document is the formal specification.
A customer may use this translation version only for a reference to help reading the formal version.
If there are any differences in translation version of this document, formal version takes priority.
REV. A


Rohm Semiconductor Electronic Components Datasheet

BD7959EFV Datasheet

Silicon Monolithic Integrated Circuit

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Electrical characteristics
(Unless otherwise noted, Ta=25,Vcc=SL/SAVM=12V ,DVcc=AVM=5V ,SPRNF=0.33Ω ,RL=8Ω ,RLSP=2Ω ,PICKCTL=5V)
Parameter
Symbol
MIN. TYP. MAX. Unit
Condition
Circuit current
Quiescent current1
Quiescent current2
Quiescent current3
Standby-on current1
Standby-on current2
IQ1
IQ2
IQ3
IST1
IST2
12 24 mA VccLoading OFF
7 12 mA VccLoading ON
7 12 mA DVcc
- - 0.5 mA Vcc
- - 1.0 mA DVcc
Sled driver
block
Input dead zone (one side)
Input output gain
Output On resistortop and bottom
Output limit current
PWM frequency
VDZSL
gmSL
RONSL
ILIMSL
fosc
0 20 80 mV
1.0 1.25 1.5 A/V Rin1,2=62kΩ
2.2 3.3 Ω IL=500mA
0.84 1.2 1.56 A
100 kHz
SA driver
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Input dead zone (one side)
Input output gain
Output On resistortop and bottom
Output limit current
PWM frequency
VDZSA
gmSA
RONSA
ILIMSA
Fosc
0 60 120 mV
0.141 0.17 0.199 A/V Rin1=68kΩ, Rin2=75kΩ
2.2 3.3 Ω IL=200mA
280 400 520 mA
100 kHz
Spindle driver
block
Input dead zone (one side)
Input output gain
Output On resistortop and bottom
Output limit current
PWM frequency
VDZSP
gmSP
RONSP
ILIMSP
Fosc
0 10 40 mV
0.91
1.15
1.39 A/V SPRNF=0.33Ω
1.5 2.6 Ω IL=500mA
0.88 1.1 1.32 A SPRNF=0.33Ω
100 kHz
Actuator driver
block
Output offset voltage
Output saturation voltage
Voltage gain
VOFFT
VOFT
GVFT
-50 0
50 mV
0.9 1.8 V IL=500mA
15.5 17.5 19.5 dB
Loading driver
block
Output offset voltage
Output saturation voltage
Voltage gain
VOFLD
VOLD
GVLD
-50 0
50 mV
2.2 2.9 V IL=500mA
15.5 17.5 19.5 dB
Others
VC drop-muting
Vcc drop-muting
VMVC
VMVcc
0.4 0.7 1.0 V
3.4 3.8 4.2 V
Package outlines
(MAX 18.85 include BURR)
BD7959EFV
HTSSOP-B54 (UNIT : mm) Figure No.; B1196
Belly metal (substrate side) heat radiation
REV. A


Part Number BD7959EFV
Description Silicon Monolithic Integrated Circuit
Maker Rohm
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BD7959EFV Datasheet PDF






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