ver: 0.2 oct 30, 2013 tel: 886-3-5788833 http://www.gmt.com.tw 1 G2241B global mixed-mode technology 4+6 channels pmu and dual-input, switch mode li-ion battery charger features ? 2.5v ~ 5.5v input voltage operation. ? 95% efficient dc/dc converter ? built-in 4-ch synchronous buck converter, 5-ch ldos, and 1-ch low quiescent current ldo for rtc. ? low power consumption (sleep mode ) < 10a. ? built-in power on/off sequence for pmu. ? built-in short circuit protection (scp), under voltage protection (uvp), and cycle-by cycle current limit for dc/dc converters. ? integrated switched mode li-ion charger with dynamic power path function. ? charge voltage and current control with jeita compliant. ? built-in thermal shutdown function. ? built-in battery ovp function. ? boost mode operation for usb otg. ? tqfn48 package (6mmx6mm). general description the G2241B provide a complete power supply solution. they improve performance, component count, and size compared to other multi-channel controllers in 1-cell li-ion. on-chip mosfets provide up to 92~95% efficiency for critical power supplies. all channels dc/dc operate at one fixed frequency of 1.5mhz to optimize size, cost, and efficiency. all synchronous converters operate at pulse skipping mode at light load. they also feature true-shutdown as well as internal compensation to minimize external component count. the G2241B also provide switched mode li-ion charger with dynamic power path control. G2241B also has auto ntc-r 100k /10k detection circuit. applications ? tablet pc ? ordering information order number marking temp. range package (green) G2241Brp1u 2241b -35 c~+85 c tqfn6x6-48 note: rp:tqfn6x6-48 1: bonding code u: tape & reel pin configuration dcin dcin setl4 vbg setl2 /chgled lx3 vin3 dcdc3 dcdc1 vin1 lx1 setd4 pwrgd ldoin2 ldo5 ldoin56 ldo6 dcdc4 vin4 lx4 lx2 vin2 dcdc2 slx vp ts bat bat sys sys rtcout ldo3 ldoin34 ldo4 ldo2 slx pvccsw pvccsw pwren_vdd pwren_main vbus pmid pmid dcdet /int sda 1 2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36 13 14 15 16 17 18 19 20 21 22 23 24 48 43 42 41 40 39 38 37 44 45 47 46 scl thermal pad note: recommend connecting the thermal pad to the ground for excellent power dissipation. G2241B tqfn6x6-48 dcin dcin setl4 vbg setl2 /chgled lx3 vin3 dcdc3 dcdc1 vin1 lx1 setd4 pwrgd ldoin2 ldo5 ldoin56 ldo6 dcdc4 vin4 lx4 lx2 vin2 dcdc2 slx vp ts bat bat sys sys rtcout ldo3 ldoin34 ldo4 ldo2 slx pvccsw pvccsw pwren_vdd pwren_main vbus pmid pmid dcdet /int sda 1 2 3 4 5 6 7 8 9 10 11 12 25 26 27 28 29 30 31 32 33 34 35 36 13 14 15 16 17 18 19 20 21 22 23 24 48 43 42 41 40 39 38 37 44 45 47 46 scl thermal pad note: recommend connecting the thermal pad to the ground for excellent power dissipation. G2241B tqfn6x6-48
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