NXP Semiconductors TDA8932B - Manual (Page 17)

TDA8932B_4 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 04 — 18 December 2008 17 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
[1] Measured on a JEDEC high K-factor test board (standard EIA/JESD 51-7) in free air with natural convection.
[2] Two layer application board (55 mm
×
45 mm), 35
µ
m copper, FR4 base material in free air with natural convection.
[3] Strongly depends on where the measurement is taken on the package.
[4] Two layer application board (55 mm
×
40 mm), 35
µ
m copper, FR4 base material in free air with natural convection.
12. Static characteristics
HTSSOP32 package
R
th(j-a)
thermal resistance from junction
to ambient free air natural convection
JEDEC test board [1] - 47 50 K/W
2 layer application board [4] - 48 - K/W
Ψ
j-lead
thermal characterization
parameter from junction to lead - - 30 K/W
Ψ
j-top
thermal characterization
parameter from junction to top of
package [3] - - 2 K/W
R
th(j-c)
thermal resistance from junction
to case free air natural convection - 4.0 - K/W
Table 9. Thermal characteristics …continued
Symbol Parameter Conditions Min Typ Max Unit
Table 10. Static characteristics
V
P
= 22 V; f
osc
= 320 kHz; T
amb
= 25
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
P
supply voltage asymmetrical supply 10 22 36 V
symmetrical supply
±
5
±
11
±
18 V
I
P
supply current Sleep mode; no load - 145 195
µ
A
I
q(tot)
total quiescent current Operating mode; no load, no
snubbers and no filter connected - 40 50 mA
Series resistance output power switches
R
DSon
drain-source on-state
resistance T
j
= 25
°
C - 150 - m
Ω
T
j
= 125
°
C - 234 - m
Ω
Power-up input: pin POWERUP [1]
V
I
input voltage 0 - 6.0 V
I
I
input current V
I
= 3 V - 1 20
µ
A
V
IL
LOW-level input voltage 0 - 0.8 V
V
IH
HIGH-level input voltage 2 - 6.0 V
Engage input: pin ENGAGE [1]
V
O
output voltage open pin 2.4 2.8 3.1 V
V
I
input voltage 0 - 6.0 V
I
O
output current V
I
= 0 V - 50 60
µ
A
V
IL
LOW-level input voltage 0 - 0.8 V
V
IH
HIGH-level input voltage 2.4 - 6.0 V