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TDF8599 Datasheet

I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier

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TDF8599
I2C-bus controlled dual channel 43 W/2 single channel
85 W/1 class-D power amplifier with load diagnostics
Rev. 01 — 13 November 2008
Product data sheet
1. General description
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The TDF8599 is a dual Bridge-Tied Load (BTL) car audio amplifier comprising an
NDMOST-NDMOST output stage based on SOI BCDMOS technology. Low dissipation
enables the TDF8599 high-efficiency, class-D amplifier to be used with a smaller heat sink
than those normally used with standard class-AB amplifiers.
The TDF8599 can operate in either non-I2C-bus mode or I2C-bus mode. When in I2C-bus
mode, DC load detection results and fault conditions can be easily read back from the
device. Up to five I2C-bus addresses can be selected when an external resistor is
connected to pin ADS.
When pin ADS is short circuited to ground, the TDF8599 operates in non-I2C-bus mode.
Switching between Operating mode and Mute mode in non-I2C-bus mode is only possible
using pins EN and SEL_MUTE.
2. Features
I High-efficiency
I Low quiescent current
I Operating voltage from 8 V to 18 V
I Two 4 /2 capable BTL channels or one 1 capable BTL channel
I Differential inputs
I Supports I2C-bus mode with five I2C-bus addresses or non-I2C-bus mode operation
I Clip detect
I Independent short circuit protection for each channel
I Advanced short circuit protection for load, GND and supply
I Load dump protection
I Thermal foldback and thermal protection
I DC offset protection
I Selectable AD or BD modulation
I Parallel channel mode for high current drive capability
I Advanced clocking:
N Switchable oscillator clock source: internal (master) or external (slave)
N Spread spectrum mode
N Phase staggering
N Frequency hopping
I No ‘pop noise’ caused by DC output offset voltage


NXP Semiconductors Electronic Components Datasheet

TDF8599 Datasheet

I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier

No Preview Available !

NXP Semiconductors
TDF8599
Class-D power amplifier with load diagnostics
I I2C-bus mode:
N DC load detection
N AC load detection
N Thermal pre-warning diagnostic level setting
N Identification of activated protections or warnings
N Selectable diagnostic information available using pin DIAG
I Qualified in accordance with AEC-Q100
3. Applications
I Car audio applications
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4. Quick reference data
Table 1. Quick reference data
Symbol Parameter
General; Vp = 14.4 V
VP supply voltage
Istb standby current
Iq(tot)
total quiescent current
Dual BTL channel; Vp = 14.4 V
Po output power
Conditions
voltage on pin EN < 0.8 V
Operating mode; no load, snubbers and
filter connected
Stereo mode;
THD = 1 %; RL = 4
THD = 10 %; RL = 4
square wave (EIAJ); RL = 4
THD = 1 %; RL = 2
THD = 10 %; RL = 2
square wave (EIAJ); RL = 2
Parallel mode
THD = 10 %; RL = 1
[1] Output power is measured indirectly based on RDSon measurement.
5. Ordering information
Min Typ Max Unit
8
14.4 18
V
- - 10 µA
- 90 120 mA
[1] 18 20 -
24 26 -
- 40 -
29 32 -
39 43 -
- 70 -
[1] -
85 -
W
W
W
W
W
W
W
Table 2. Ordering information
Type number
Package
Name
Description
TDF8599TH
HSOP36 plastic, heatsink small outline package; 36 leads; low stand-off height
TDF8599TD
HSOP36 plastic, heatsink small outline package; 36 leads; low stand-off height
Version
SOT851-2
SOT938-1
TDF8599_1
Product data sheet
Rev. 01 — 13 November 2008
© NXP B.V. 2008. All rights reserved.
2 of 52


Part Number TDF8599
Description I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier
Maker NXP Semiconductors
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TDF8599 Datasheet PDF






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