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2 dynamic characteristics, Tfa9810, Nxp semiconductors – NXP Semiconductors TFA9810 User Manual

Page 16

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TFA9810_3

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 03 — 20 February 2008

16 of 29

NXP Semiconductors

TFA9810

Audio amplifier 2 x 12 W

[1]

Current limiting concept: in overcurrent condition no interruption of the audio signal in case of impedance drop.

12.2 Dynamic characteristics

I

I

input current

V

I

= 5 V

-

1

20

µ

A

SO/OL input

V

IL

LOW-level input voltage

with respect to V

SSD

-

-

0.4

V

V

IH

HIGH-level input voltage with respect to V

SSD

3

4

4.5

V

STABI

V

STABI

voltage on pin STABI

with respect to V

SS

10

11

12

V

Comparator full-differential input stage

V

offset(i)(eq)

equivalent input offset
voltage

-

-

1

mV

20 Hz < f < 20 kHz

-

-

15

µ

V

V

cm

common mode voltage

V

SSA

+ 3

-

V

DDA

1

V

I

IB

input bias current

-

-

1

µ

A

OverTemperature Protection (OTP)

T

prot

protection temperature

150

-

-

°

C

OverVoltage Protection (OVP)

V

th(ovp)

overvoltage protection
threshold voltage

level internal fixed

20

21.5

23

V

UnderVoltage Protection (UVP)

V

P(uvp)

undervoltage protection
supply voltage

level internal fixed

7

7.5

8

V

OverCurrent Protection (OCP)

I

O(ocp)

overcurrent protection
output current

[1]

3

3.5

-

A

Window Protection (WP)

V

O

output voltage

high level

-

V

DDA

1

-

V

low level

-

V

SSA

+ 1

-

V

Table 9.

Static characteristics

…continued

T

amb

= 25

°

C; V

P

= 12 V; f

osc

= 550 kHz;

Figure 33

unless otherwise specified

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 10.

Dynamic characteristics

T

amb

= 25

°

C; V

P

= 12 V; R

L

= 8

;

Figure 33

unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PWM output

t

r

rise time

-

10

-

ns

t

f

fall time

-

10

-

ns