G2241B Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 4+6 Channels PMU and Dual-input, Switch mode Li-ion Battery Charger

Global Mixed-mode Technology
G2241B
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 ) < 10µA.
„ 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 100kΩ/10kΩ detection circuit.
Applications
„ Tablet PC
Ordering Information
ORDER
NUMBER
G2241BRP1U
Note: RP:TQFN6x6-48
1: Bonding code
U: Tape & Reel
Pin Configuration
MARKING
2241B
TEMP.
RANGE
-35°C~+85°C
PACKAGE
(Green)
TQFN6X6-48
SLX 1
VP 2
TS 3
BAT 4
BAT 5
SYS 6
SYS 7
RTCOUT 8
LDO3 9
LDOIN34 10
LDO4 11
LDO2 12
Thermal
Pad
36 DCIN
35 DCIN
34 SETL4
33 VBG
32 SETL2
31 /CHGLED
30 LX3
29 VIN3
28 DCDC3
27 DCDC1
26 VIN1
25 LX1
Ver: 0.2
Oct 30, 2013
G2241B TQFN6X6-48
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: [phone]
http://www.gmt.com.tw
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