Datasheet

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Protection MODE Selection Pins
Package Heat Dissipation Ratings
(1)
TAS5352
SLES204A – SEPTEMBER 2007 – REVISED OCTOBER 2007
Protection modes are selected by shorting M1, M2, and M3 to VREG or GND.
MODE PINS
Mode Name PWM Input
(1)
Description
M3 M2 M1
0 0 0 BTL mode 1 2N All protection systems enabled
0 0 1 BTL mode 2 2N Latching shudown on, PWM activity detector and OLP disabled
0 1 0 BTL mode 3 1N All protection systems enabled
0 1 1 PBTL mode 1N / 2N
(2)
All protection systems enabled
1 0 0 SE mode 1 1N All protection systems enabled
(3)
1 0 1 SE mode 2 1N Latching shudown on, PWM activity detector and OLP disabled
(3)
1 1 0
Reserved
1 1 1
(1) The 1N and 2N naming convention is used to indicate the number of PWM lines to the power stage per channel in a specific mode.
(2) PWM_D is used to select between the 1N and 2N interface in PBTL mode (Low = 1N; High = 2N). PWM_D is internally pulled low in
PBTL mode. PWM_A is used as the PWM input in 1N mode and PWM_A and PWM_B are used as inputs for the 2N mode.
(3) PPSC detection system disabled.
PARAMETER TAS5352DDV
R
θ JC
( ° C/W) — 2 BTL or 4 SE channels 1.3
R
θ JC
( ° C/W) — 1 BTL or 2 SE channel(s) 2.6
R
θ JC
( ° C/W) — 1 SE channel 5.0
Power Pad area
(2)
36 mm
2
(1) JC is junction-to-case, CH is case-to-heatsink.
(2) R
θ CH
is an important consideration. Assume a 2-mil thickness of high performance grease with a thermal conductivity at 2.5W/m-K
between the pad area and the heat sink. The R
θ CH
with this condition is 0.6 ° C/W for the DDV package.
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Product Folder Link(s): TAS5352