Tr i path Technol ogy, I nc. - Techni cal I nfor m ati on
TPD2125
DUAL COMPLEMENTARY MOSFET DRIVER
ADVANCED INFORMATION
Revision 2.0 – December 2004
GENERAL DESCRIPTION
The TPD2125 is a high-speed dual complimentary MOSFET driver. The TPD2125 converts CMOS or TTL
inputs to gate signals suitable for driving a complimentary pair of MOSFETs in a dual half-bridge or single
full-bridge configuration. When three TPD2125’s are mated with a TCD6000, the chipset is a six-channel,
digital input, 75W (8Ω) per channel Amplifier. This stereo mosfet driver, when paired with a Class T
controller, offers both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers.
Applications
Switch-Mode Audio Power Amplifiers
Complementary MOSFET driver
Switch-Mode Power Supplies
Features
Programmable Break-Before-Make
Low Power Consumption
Output over-current protection
Over-temperature protection
24-Pin TSSOP-EP Package
Benefits
Reduced system cost with smaller/less
expensive power supply and heat sink
Signal fidelity equal to high quality
Class-AB amplifiers
THD+N versus POWER
10
5
2
1
0.5
%
0.2
0.1
0.05
0.02
0.01
0.006
2
5
10
20
W
50
100
200 300
R
L
= 6Ω and 8Ω
Vs = +58V
f = 1kHz
R
BBM
= 16.2KΩ
BW = 22Hz - 20kHz(AES17)
1
TPD2125 – Rev. 2.0/CS/12.04
ARM Technology
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