參數(shù)資料
型號: TDA5345HT
廠商: NXP SEMICONDUCTORS
元件分類: 運(yùn)動控制電子
英文描述: 5 V spindle & VCM driver combo
中文描述: DISK DRIVE MOTOR CONTROLLER, 2 A, PQFP64
封裝: LOW PROFILE, PLASTIC, TQFP-64
文件頁數(shù): 38/44頁
文件大?。?/td> 213K
代理商: TDA5345HT
1999 June 10
38
Philips Semiconductors
Preliminary specification
5 V spindle & VCM driver combo
TDA5345HT
4-2 VCM current control
4-3 VCM current sense amplifier
4-4 VCM back-EMF amplifier
4-5 VCM DAC12
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNITS
GBW
V
VcmRef
V
ClampOutL
V
ClampOutL
error amplifier bandwidth
Vcm loop ref. voltage
error amp out clamping
error amp out clamping
@ unity Gain, GbD
generated by DAC-12
Vdd5 = 5 V
Vdd5 = 5 V
4
5.5
MHz
1.402
1.2
3.6
1.482
1.3
3.7
1.562
1.4
3.8
V
V
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
ComMod
input voltage range
-0.3
V
DD5
+0.3
V
BW
R
FB
PSRR
bandwidth
feed back resistor
power supply rejection
ratio
common mode rejection
ratio
GbD
260
2.5
60
530
3.145
kHz
k
dB
3.9
@ 1 kHz, GbD
CMRR
@ 1 kHz, GbD
60
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
ComMod
input voltage range
both OpAmps
-0.3
V
DD5
+0.3
V
V
OL
V
OH
minimum output voltage
maximum output voltage
both OpAmps, GbD
both OpAmps, GbD
100
V
DD5
-0.1
mV
V
PSRR
power supply rejection
ratio
common mode rejection
ratio
unity-gain bandwidth
1rst stage input offset
2nd stage amplifier gain
2nd stage output offset
both OpAmps, @ 1 kHz,
GbD
both OpAmps, @ 1 kHz,
GbD
60
dB
CMRR
60
dB
GBW
0.77
-5
1.96
-20
1.6
MHz
mV
+5
G
BEMF2
V
OS2
2
2.04
+20
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
RESO
12
t
SET
V
ref
HighHG
V
ref
HighLG
V
ref
Middle
V
ref
LowLG
resolution
settling time
output voltage @ code 7FF code written to register #8
output voltage @ code 7FF code written to register #7
output voltage @ code 000
12
12
Bits
μ
s
to within 0.5 LSB
2.0
2.382
1.652
1.422
1.192
2.482
1.732
1.482
1.232
2.582
1.852
1.542
1.272
V
V
V
V
code written to register #7
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