TDA4841 데이터 시트보기 (PDF) - Philips Electronics

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TDA4841

I2C-bus autosync deflection controller for PC monitors

Philips Electronics 

Philips Semiconductors

I2C-bus autosync deflection controller for

PC monitors

Product specification

TDA4841PS

SYMBOL

PARAMETER

CONDITIONS

MIN.

VOLTAGE COMPARATOR: PIN BSENS

Vi(BSENS)

voltage range of positive

comparator input

Vi(BOP)

voltage range of negative

comparator input

ILI(BSENS)(max)

maximum leakage current

discharge disabled

OPEN-COLLECTOR OUTPUT STAGE: PIN BDRV

Io(BDRV)(max)

ILO(BDRV)

Vsat(BDRV)

toff(BDRV)(min)

td(BDRV-HDRV)

maximum output current

note 13

output leakage current

saturation voltage

minimum off-time

VBDRV = 16 V

Io(BDRV) < 20 mA

delay between BDRV pulse and measured at

HDRV pulse

VHDRV = VBDRV = 3 V

BSENS DISCHARGE CIRCUIT: PIN BSENS

VSTOP(BSENS)

Idch(BSENS)

Vth(BSENS)(restart)

CBSENS(min)

discharge stop level

discharge current

threshold voltage for restart

minimum value of capacitor at

BSENS (pin 4)

capacitive load;

IBSENS = 0.5 mA

VBSENS > 2.5 V

fault condition

0

0

−

20

−

−

−

−

0.85

4.5

1.2

2

Internal reference, supply voltage, soft start and protection

VCC(stab)

external supply voltage for

9.2

complete stabilization of all

internal references

ICC

ICC(stb)

PSRR

supply current

−

standby supply current

STDBY = 1; VPLL2 < 1 V; −

3.5 V < VCC < 16 V

power supply rejection ratio of f = 1 kHz

50

internal supply voltage

VCC(blank)

supply voltage level for

activation of continuous

blanking

VCC decreasing from 12 V 8.2

VCC(blank)(min)

minimum supply voltage level

for function of continuous

blanking

VCC decreasing from 12 V 2.5

Von(VCC)

supply voltage level for

activation of HDRV, BDRV,

VOUT1, VOUT2 and

HUNLOCK

VCC increasing from below 7.9

typical 8.1 V

Voff(VCC)

supply voltage level for

VCC decreasing from

7.7

deactivation of BDRV, VOUT1, above typical 8.3 V

VOUT2 and HUNLOCK; also

sets register SOFTST

TYP.

−

−

−

−

−

−

250

500

1.0

6.0

1.3

−

−

70

9

−

8.6

3.5

8.3

8.1

MAX. UNIT

5

V

5

V

−2

µA

−

mA

3

µA

300 mV

−

ns

−

ns

1.15 V

7.5

mA

1.4

V

−

nF

16

V

−

mA

−

mA

−

dB

9.0

V

4.0

V

8.7

V

8.5

V

1999 Oct 25

25

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