TDA5345HT Datasheet, PDF (40/44 Pages) NXP Semiconductors – 5 V spindle & VCM driver combo

Philips Semiconductors
5 V spindle & VCM driver combo
Preliminary specification
TDA5345HT
5-3 Thermal monitor
SYMBOL
V_OLT
V_OHT
V_ONT
K_TEMP
T_Warn
T_Why
T_Shut
T_Shy
PARAMETER
CONDITIONS
output voltage at low temp T_JUNC = 0 °C, TempSel = 1
output voltage at high temp T_JUNC = 150 °C,
TempSel =1
output voltage at 25 °C
T_JUNC = 25 °C, TempSel
=1
temperature coefficient
thermal warning threshold tempSel = 0
thermal warning hysteresis tempSel = 0
temperature Shutdown
thermal Shutdown
hysteresis
MIN.
TYP.
2.954
1.896
MAX.
UNIT
V
V
2.769
V
-7.55
mV/
145
°C
15
°C
160
°C
30
°C
5-4 Shock Sensor
SYMBOL
I_leak
S_in
Fc_RC
V_T1
V_T2
V_T3
V_T4
V_T5
V_T6
V_T7
V_T8
PARAMETER
CONDITIONS
shockinput leakage current @ Vref = 2 V, GbD
input sensitivity
@ 1 kHz, GbD
RC filter cut-off frequency
2nd stage input window shockThreh[2, 0] = “000”
2nd stage input window shockThreh[2, 0] = “001”
2nd stage input window shockThreh[2, 0] = “010”
2nd stage input window shockThreh[2, 0] = “011”
2nd stage input window shockThreh[2, 0] = “100”
2nd stage input window shockThreh[2, 0] = “101”
2nd stage input window shockThreh[2, 0] = “110”
2nd stage input window shockThreh[2, 0] = “111”
MIN.
35
6
122
386
612
816
1021
1226
1430
1634
TYP.
MAX.
5
8
227
454
681
908
1135
1362
1589
1816
10
306
522
750
1000
1248
1498
1747
1998
Unit
nA
µV
kHz
µV
µV
µV
µV
µV
µV
µV
µV
5-5 3.3 V DC-DC linear converter
SYMBOL
I_SOURCE
I_SINK
C_DEC
V_O
PARAMETER
source current
sink current
external decoupling cap
output voltage
V_{O_4v1}
output voltage
CONDITIONS
I_LOAD constant
& NPN V_BE <= 0.7 V
same as V_O +Vdd5 = 4.1 V
MIN.
5
3.15
TYP. MAX.
250
4.7
3.3
3.45
3.05
3.2
3.45
Unit
mA
µA
µF
V
V
BW
control loopband width
Note:
1. External NPN: 2SC4210 for instance
GbD
600
kHz
1999 June 10
40