TDA8933BTW/N2,118 NXP Semiconductors, TDA8933BTW/N2,118 Datasheet - Page 12

• 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
UBA2074(A)
Preliminary data sheet
7.8 HF synchronization of inverters
The signal on the PWMd-pin is active low. A voltage below V
the lamps on and a voltage above V
PWM dimming of multiple ICs can be synchronised by configuring one IC as master and
the others as slaves and connecting all PWMd-pins together.
PWM dimming is only enabled in normal mode, when no fault condition excists. The only
exception is when an external detected fault condition is entered via the nonFAULT-pin,
then PWM dimming remains active (see
There are two ways to sychronize one inverter or multiple inverters to a single operating
frequency.
The first way is to apply an external signal to all control ICs through the SYNC-pin, see
Figure
The frequency of the external signal has to be above the minimum switching frequencies
of all ICs.
Fig 11. PWM dimming configurations
12. All inverters will lock to the external signal frequency in a PLL-type of way.
Rev. 02.0 — February 2007
High Voltage Full-bridge control IC for CCFL backlighting
PWMD(high)
Figure
will turn the lamps off.
17).
PWMD(low)
UBA2074(A)
on the pin will turn
© NXP B.V. 2007. All rights reserved.
12 of 33