TFA9815 datasheet(13/26 Pages) NXP

13 / 26 page

TFA9815_1

Preliminary data sheet

Rev. 01 — 16 December 2008

13 of 26

NXP Semiconductors

TFA9815

Audio ampliﬁer 2 x 17 W

12. Characteristics

12.1 Static characteristics

Table 10.

Characteristics

VP= 12 V;Tamb = 25 ˚C; fosc = 550 kHz; typical application diagram Figure 12, unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supply voltage

supply voltage

single asymmetrical supply

(VDD − VSS)

812

supply current

Sleep mode

110

200

µA

Iq(tot)

total quiescent current

Operating mode; no load, no

snubbers and no ﬁlter connected

-40

Series resistance output power switches

RDSon

drain-source on-state resistance

Tj = 25 °C

150

220

Ω

Enable input: pin ENABLE[1]

VIL

LOW-level input voltage

Sleep mode

0.8

VIH

HIGH-level input voltage

Operating mode

input current

VI = 5 V

µA

SO/OL input: pin SO/OL[1]

VIL

LOW-level input voltage

self-oscillating conﬁguration

0.4

VIH

HIGH-level input voltage

open-loop conﬁguration

Stabilizer output pins STAB1 and STAB2

output voltage

Operating mode

[1]

10.2

11.7

Comparator full-differential input stage

Voffset(i)(eq) equivalent input offset voltage

Vn(i)(eq)

equivalent input noise voltage

20 Hz < f < 20 kHz

µV

Vi(cm)

common-mode input voltage

VSSA + 3 -

VDDA

− 1

IIB

input bias current

µA

Overtemperature protection

Tact(th_prot)

thermal protection activation

temperature

150

180

°C

Overvoltage protection

Vth(ovp)

overvoltage protection threshold

voltage

level internal ﬁxed

20.1

21.5

Undervoltage protection

VP(uvp)

undervoltage protection supply

voltage

level internal ﬁxed

7.5

7.9

Overcurrent protection

IO(ocp)

overcurrent protection output

current

[2]

3.5

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