ver: 1.5 may 21, 2009 tel: 886-3-5788833 http://www.gmt.com.tw 1 G1442 global mixed-mode technology inc. 2.6w mono audio amplifier with shutdown mode features ? depop circuitry integrated ? 2.7v to 5.5v operation ? output power at 10% thd+n, vdd=5v --2.6w (typical) into a 3 load ? output power at 1% thd+n, vdd=5v --2w (typical) into a 4 load --1.3w (typical) into a 8 load ? mono bridge-tied load (btl) ? shutdown control available ? sop-8, msop-8, sop-8 (fd) and tdfn3x3-8 package available applications ? pdas ? portable devices ? notebook general description the G1442 is a mono audio power amplifier in 8 pin sop-8, msop-8, sop-8 (fd) or tdfn3x3-8 with thermal pad package. it can drive 2w continuous rms power into 4 load in bridge-tied load (btl) mode at 5v supply voltage. its thd is smaller than 1% under the above operation condition. for the low current con- sumption applications, the shdn mode is supported to disable the G1442 when it is idle. the current con- sumption can be further reduced to below 1 a. giving the shutdown pin low level will drive the G1442 entering the shutdown. ordering information order number marking temp. range package (green) G1442p11u G1442 - 40 c to +85 c sop-8 G1442p81u G1442 - 40 c to +85 c msop-8 G1442f11u G1442 - 40 c to +85 c sop-8 (fd) G1442rd1d 1442 - 40 c to +85 c tdfn3x3-8 G1442rd1u 1442 - 40 c to +85 c tdfn3x3-8 note:p1: sop-8 p8: msop-8 f1: sop-8 (fd) rd: tdfn3x3-8 1: bonding code u & d: tape & reel pin configuration note: recommend connecting the thermal pad to the gnd for excellent power dissipation. bypass vdd vo1 gnd sop-8 (fd) G1442 top view thermal pad in+ in- vo2 1 2 3 4 8 7 6 5 tdfn3x3-8 1 2 3 4 8 7 6 5 thermal pad G1442 bypass shutdown in+ in- vdd vo1 gnd vo2 shutdown bypass vdd vo1 gnd sop-8/msop-8 G1442 in+ in- vo2 1 2 3 4 8 7 6 5 shutdown note: recommend connecting the thermal pad to the gnd for excellent power dissipation. bypass vdd vo1 gnd sop-8 (fd) G1442 top view thermal pad in+ in- vo2 1 2 3 4 8 7 6 5 tdfn3x3-8 1 2 3 4 8 7 6 5 thermal pad G1442 bypass shutdown in+ in- vdd vo1 gnd vo2 shutdown bypass vdd vo1 gnd sop-8/msop-8 G1442 in+ in- vo2 1 2 3 4 8 7 6 5 shutdown
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