motor-driver

Philips Semiconductors
12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip
Preliminary specification
TDA5147CH
Voice coil motor driver characteristics
V CC5 =5V; V CCS12 =V CCA12 =V CCV12 = 12 V; T amb = 0 to 70 °C.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Retract control voltage; pins V CMN and V CMP
I RET retract voltage load current V SHPWR1 = 9 V; power supplies − 3.0 − µA
off
t RET retract voltage hold time retract capacitor = 2.2 µF 5 − − s
(power down)
V RET retract voltage regulation nominal power supply at 0.8 1.1 1.4 V
T amb =25°C, pin 35 open
power supply off;
V SDRVU = 9 to 2 V;
V SHPRW1 = 7.5 V, pin 35 open
0.8 1.1 1.4 V
I BRAKE I BRK1 power supply off;
SHPWR1 = 8 V;
SHPWR2, 3 =4V;
RET ADJ =0V;
R LOAD(VCM )=10Ω
I BRK2
power supply off;
SHPWR1 = 6.5 V;
SHPWR2, 3 =2V;
RET ADJ =0V;
R LOAD(VCM) =10Ω
VCM current control PWM DAC; pins V IPWMH ,V IPWML and V FLTINP
I LIN
V FL(p)
F LI(n)
Z O
120 − − mA
50 − − mA
input current
V IPWMH ,V IPWML
voltage range 0 to 5 V −200 − +200 µA
positive full-scale DAC 100% duty factor − +1.0 − V
V FLTINP − V refout
output voltage
negative full-scale DAC 0% duty factor − −1.0 − V
V FLTINP − V refout
output voltage
current ratio between MSB
and LSB
31.5 32 32.5
output impedance from
1.40 2.0 2.6 kΩ
V FLTINP to V refout
1997 Jul 09 21