G2241B

G2241B
Global Mixed-mode Technology
4+6 Channels PMU and Dual-input, Switch mode Li-ion
Battery Charger
Features
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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.
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).
Applications
Tablet PC
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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
/INT
SCL
SDA
38
37
40
39
PMID
DCDET
41
VBUS
PMID
42
PWREN_MAIN
44
43
PVCCSW
PWREN_VDD
46
45
SLX
PVCCSW
48
47
Pin Configuration
SLX
1
36
DCIN
VP
2
35
DCIN
TS
3
34
SETL4
BAT
4
33
VBG
BAT
5
32
SETL2
SYS
6
SYS
7
Thermal
Pad
31
/CHGLED
30
LX3
22
23
24
LX2
DCDC2
21
VIN2
20
LX4
PWRGD
19
VIN4
LX1
17
25
18
12
SETD4
VIN1
LDO2
DCDC4
DCDC1
26
16
27
11
15
10
LDO4
LDO6
LDOIN34
LDOIN56
DCDC3
14
VIN3
28
13
29
9
LDO5
8
LDO3
LDOIN2
RTCOUT
G2241B TQFN6X6-48
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2
Oct 30, 2013
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