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Número de pieza

componentes Descripción

Fabricante

TDA8931T

Power comparator 1×20 W

Philips Electronics 

Philips Semiconductors

TDA8931

Power comparator 1 × 20 W

Table 9: Characteristics …continued

VP = 22 V; Tamb = 25 °C; fcarrier = 290 kHz; unless otherwise specified.

Symbol Parameter

Conditions

Power-up input: pin POWERUP

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

with respect to CGND

with respect to CGND

Standby mode

Operating mode

Vhys

hysteresis voltage

II

input current

Enable input: pin ENABLE

VI = 5 V

VIL

LOW-level input voltage

VIH

HIGH-level input voltage

Vhys

hysteresis voltage

II

input current

Internal stabilizer output: pin STABI

with respect to CGND

with respect to CGND

VI = 5 V

VO

output voltage

with respect to VSSD

Comparator full differential input stage: pins INP and INN

Voff(i)(eq)

Vn(i)(eq)

equivalent input offset voltage

equivalent input RMS-noise

voltage

20 Hz < fi < 20 kHz

Vi(cm)

common mode input voltage

Ii(bias)

bias input current

Half supply voltage output for input circuitry: pin HVPI

VHVPI

output voltage on pin HVPI

Standby and Operating mode

Half supply voltage output to charge SE capacitor: pin HVP

VHVP

output voltage on pin HVP

Standby mode

Icharge

charge current of HVP capacitor

Overtemperature protection (OTP)

TOTP

overtemperature protection level

Overvoltage protection (OVP)

VP(OVP)fix fixed OVP threshold level

VOVP

adjustable OVP level

Undervoltage protection (UVP)

VP(min)

protection level minimum supply

voltage

Overcurrent protection (OCP)

IOCP

overcurrent protection level

level internal fixed

[1] VIH on pin ENABLE must not exceed VDDA.

[2] The overvoltage protection can be controlled external (see Section 8.6.3).

Min

Typ

Max Unit

-

-

0.8

V

3

-

7

V

11

-

VP

V

-

0.5

-

V

-

30

40

µA

-

[1] 3

-

-

-

0.8

V

-

12

V

0.3

-

V

30

40

µA

11

12

14

V

-

-

-

-

VSSA + -

4

-

24

10

mV

15

mV

VDDA − V

5

60

nA

0.5VP − 0.5VP

0.25

0.5VP + V

0.25

0.5VP − 0.5VP

0.25

20

45

0.5VP + V

0.25

-

mA

150

155

-

°C

35

37.5 40

V

[2] 1.19

1.27

1.35

V

10

11

12

V

3.3

4.0

-

A

9397 750 13847

Preliminary data sheet

Rev. 01 — 14 January 2004

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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