TDA8933BTW/N2,118 NXP Semiconductors, TDA8933BTW/N2,118 Datasheet - Page 6

• Manufacturer Part Number: TDA8933BTW/N2,118
• Description: IC AMP AUDIO CLASS D 32HTSSOP
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of TDA8933BTW/N2,118

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 20.6W x 1 @ 16 Ohm; 10.3W x 2 @ 8 Ohm
• Voltage - Supply: 10 V ~ 36 V, ±5 V ~ 18 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 32-TSSOP Exposed Pad, 32-eTSSOP, 32-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935285222118

NXP Semiconductors
7. Functional description
UBA2074(A)
Preliminary data sheet
The UBA2074 is designed to drive a full-bridge inverter with resonant load. The load
consists typically of transformers with CCFLs. Two parameters are used by the UBA2074
to control the switches of the full-bridge inverter: the phase shift and the switching
frequency.
The two full bridge halves A and B
frequency. The frequency is used to control transformer output voltage during the first
ignition of the lamps. The phase difference between the full-bridge halves A and B
voltages (V
full-bridge inverter voltage V
Fig 3. Full-bridge inverter definition
Fig 4. Full-bridge inverter voltage and definition of phase shift
A
and V
B
) controls the lamp current, as this determines the rms value of the
Rev. 02.0 — February 2007
High Voltage Full-bridge control IC for CCFL backlighting
A
- V
B
(Figure
(Figure
4).
3) always operate at the same switching
UBA2074(A)
© NXP B.V. 2007. All rights reserved.
6 of 33