TDA5147K Datasheet, PDF (18/32 Pages) NXP Semiconductors – 12 V Voice Coil Motor VCM driver and spindle motor drive combination chip

Philips Semiconductors
12 V Voice Coil Motor (VCM) driver and
spindle motor drive combination chip
Product specification
TDA5147K
VOICE COIL MOTOR DRIVER CHARACTERISTICS
V_CCA1 = 5 V; V_CCS = V_CCA2 = V_CCV = 12 V; T_amb = 0 to 70 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX. UNIT
Retract control voltage; pin 22 (RET_ADJ)
I_RET
retract voltage load current
V₂₉ = 9 V; power supplies −
3.0
−
µA
off
t_h;RET
retract voltage hold time (power retract capacitor = 2.2 µF 5
−
−
s
down)
V_RET
retract voltage regulation
nominal power supply at −
1.0
−
V
T_amb = 25 °C
power supply off;
−
1.0
−
V
V₂₄ = 9 to 2 V; V₂₉ = 7.5 V
VCM current control PWM DAC; pins 46 to 48 (V_IPWML, V_IPWMH and V_FLTINP)
I_{47, 46}
input current at pins 47 and 46 voltage range 0 to 5 V
−200
−
+200
µA
V_FL(p)
positive full scale DAC output 100% duty factor
−
+1.0
−
V
voltage at pin 48 relative to
pin 37
F_LI(n)
negative full scale DAC output
voltage at pin 48 relative to
pin 37
0% duty factor
−
−1.0
−
V
current ratio between MSB and
LSB
31.5
32
32.5
Z_o
output impedance from pin 48
to pin 37
1.40
2.0
2.6
kΩ
VCM PWM filter; pins 48 and 49 (V_FLTINP and V_FLTOUT)
I_o
output current on pin 49
V₄₉ = ∆V_o + 10 mV
500
−
−
µA
∆Φ
maximum phase shift from
measured at 500 Hz;
−
−
2
deg
pin 48 to pin 49
C_filter = 1.8 nF
f_co
filter cut-off frequency from
pin 48 to pin 49
−
40
−
kHz
α_filter
filter attenuation at 1 MHz
measured from pin 48 to pin 49
−
70
−
dB
V₄₉
output voltage range measured pins 46 and 47 at 0% duty V₃₇ − 2.06 V₃₇ − 1.98 V₃₇ − 1.90 V
at pin 49
factor
pins 46 and 47 at 50%
0.065
V₃₇
duty factor
0.065
V
pins 46 and 47 at 100%
duty factor
V₃₇ + 1.90 V₃₇ + 1.98 V₃₇ + 2.06 V
Reference voltage; pin 37 (V_ref(o))
V_ref(o)
output reference voltage
I_o = 4 mA; C_L = 10 nF
3.8
4.0
4.2
V
1996 Jul 26
18