TDA5345HT datasheet(40/44 Pages) PHILIPS

40 / 44 page

1999 June 10

Philips Semiconductors

Preliminary speciﬁcation

5 V spindle & VCM driver combo

TDA5345HT

5-3 Thermal monitor

5-4 Shock Sensor

5-5 3.3 V DC-DC linear converter

Note:

1. External NPN: 2SC4210 for instance

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VOLT

output voltage at low temp

TJUNC = 0 °C, TempSel = 1

2.954

VOHT

output voltage at high temp TJUNC = 150 °C,

TempSel =1

1.896

VONT

output voltage at 25

°CTJUNC = 25 °C, TempSel

2.769

KTEMP

temperature coefﬁcient

-7.55

mV/

TWarn

thermal warning threshold

tempSel = 0

145

°C

TWhy

thermal warning hysteresis tempSel = 0

°C

TShut

temperature Shutdown

160

°C

TShy

thermal Shutdown

hysteresis

°C

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

Unit

Ileak

shockinput leakage current @ Vref = 2 V, GbD

Sin

input sensitivity

@ 1 kHz, GbD

µV

FcRC

RC ﬁlter cut-off frequency

kHz

VT1

2nd stage input window

shockThreh[2, 0] = “000”

122

227

306

µV

VT2

2nd stage input window

shockThreh[2, 0] = “001”

386

454

522

µV

VT3

2nd stage input window

shockThreh[2, 0] = “010”

612

681

750

µV

VT4

2nd stage input window

shockThreh[2, 0] = “011”

816

908

1000

µV

VT5

2nd stage input window

shockThreh[2, 0] = “100”

1021

1135

1248

µV

VT6

2nd stage input window

shockThreh[2, 0] = “101”

1226

1362

1498

µV

VT7

2nd stage input window

shockThreh[2, 0] = “110”

1430

1589

1747

µV

VT8

2nd stage input window

shockThreh[2, 0] = “111”

1634

1816

1998

µV

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

Unit

ISOURCE

source current

ISINK

sink current

250

µA

CDEC

external decoupling cap

4.7

µF

output voltage

ILOAD constant

& NPN VBE <= 0.7 V

3.15

3.3

3.45

VO_4v1

output voltage

same as VO +Vdd5 = 4.1 V

3.05

3.2

3.45

control loopband width

GbD

600

kHz

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