TDA8927T View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8927T

Power stage 2×80 W class-D audio amplifier

Philips Electronics 

Philips Semiconductors

Power stage 2 × 80 W class-D

audio amplifier

Objective specification

TDA8927

14 SWITCHING CHARACTERISTICS

VP = ±25 V; Tamb = 25 °C; measured in Fig.8; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

PWM outputs (pins OUT1 and OUT2); see Fig.7

tr

tf

tblank

tPD

tW(min)

Rds(on)

rise time

fall time

blanking time

propagation delay

minimum pulse width

on-resistance of the output

transistors

from pin SW to pin PWM

note 1

MIN. TYP. MAX. UNIT

−

30

−

ns

−

30

−

ns

−

70

−

ns

−

20

−

ns

−

220 270 ns

−

0.2 0.3 Ω

Note

1. When used in combination with the TDA8929T controller, the effective minimum pulse width during clipping is

0.5tW(min).

14.1 Duty factor

For the practical useable minimum and maximum duty factor (δ) which determines the maximum output power:

-t-W-----(--m---i-n--2-)---×-----f--o--s--c-

× 100% < δ <





1

–

t--W-----(-m----i-n--2)---×-----f--o---s--c-

× 100%

Using the typical values: 3.5% < δ < 96.5%.

2001 Dec 11

14

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