Optical disc ICs 4-channel BTL driver for CD players BA5937AFP The BA5937AFP is a 4-channel BTL driver developed for use with CD players. In addition to internal drivers for the focus coil, tracking coil, and sled motor, it also contains a driver for the loading motor. Applications CD-ROM, CD players Features 1) Perfect for compact applications with the use of the 4) External mute pin enables the muting of the output HSOP 28-pin power package. current for channels 1 and 4. 2) Internal thermal shutdown circuit. 5) Power supply is divided into three systems 3) Gain is adjustable with externally connected resistor. (VCC1 = ch1 and ch4, VCC2 = ch2 and current source, (For channels 1, 3, and 4.) VCC3 = ch3). Absolute maximum ratings (Ta = 25 C) Recommended operating conditions (Ta = 25 C) 632Optical disc ICs BA5937AFP Block diagram Pin descriptions 633