TDA8933B Datasheet, PDF (17/42 Pages) NXP Semiconductors – Class D audio amplifier

NXP Semiconductors
TDA8933B
Class D audio amplifier
[8] Machine Model (MM); R_s = 0 Ω; C = 200 pF; L = 0.75 µH.
11. Thermal characteristics
Table 9. Thermal characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
R_th(j-a)
thermal resistance from
free air natural convection
junction to ambient
JEDEC test board
[1] _-
47
50
K/W
Two-layer application board ^[2] -
48
-
K/W
Three-layer application
[3] _-
30
-
K/W
board
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
[4] _-
-
2
K/W
R_th(j-c)
thermal resistance from
free-air natural convection
-
4.0
-
K/W
junction to case
[1] Measured on a JEDEC high K-factor test board (standard EIA/JESO 51-7) in free air with natural convection.
[2] Measured on a two-layer application board (55 mm × 40 mm), 35 µm copper, FR4 base material in free air with natural convection.
[3] Measured on a three-layer application board (70 mm × 50 mm), 35 µm copper, FR4 base material in free air with natural convection.
[4] Strongly dependent on where the measurement is taken on the package.
12. Static characteristics
Table 10. Characteristics
V_P = 25 V, f_osc = 320 kHz and T_amb = 25 °C; unless specified otherwise.
Symbol Parameter
Conditions
Min
Supply
V_P
supply voltage
asymmetrical supply
10
symmetrical supply
±5
I_P
supply current
Sleep mode
-
I_q(tot)
total quiescent current Operating mode; no load,
-
no snubbers or filter
connected
Series resistance output switches
R_DSon
drain-source on-state T_j = 25 °C
-
resistance
T_j = 125 °C
-
Power-up input: pin POWERUP^[1]
V_I
input voltage
0
I_I
input current
V_I = 3 V
-
V_IL
LOW-level input
0
voltage
V_IH
HIGH-level input
2
voltage
TDA8933B_1
Preliminary data sheet
Rev. 01 — 23 October 2008
Typ
Max
Unit
25
36
V
±12.5
±18
V
0.6
1.0
mA
40
50
mA
380
545
-
1
-
-
-
mΩ
-
mΩ
6.0
V
20
µA
0.8
V
6.0
V
© NXP B.V. 2008. All rights reserved.
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