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RT5072 の電気的特性と機能

RT5072のメーカーはRichtekです、この部品の機能は「Multi-Channel PMU」です。


製品の詳細 ( Datasheet PDF )

部品番号 RT5072
部品説明 Multi-Channel PMU
メーカ Richtek
ロゴ Richtek ロゴ 




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RT5072 Datasheet, RT5072 PDF,ピン配置, 機能
®
RT5072
Multi-Channel PMU with Linear Battery Charger for CMOS
DSC/DV
General Description
The RT5072 is a complete power supply solution for digital
still cameras and other hand held devices. The RT5072 is
composed of a multi-channel DC/DC power converter unit,
a single-cell linear Li-ion battery charger, a charger type
detector, and an I2C control interface.
The power converter unit includes one synchronous step-
up converter (CH1), one synchronous step-up/down
converter (CH2), three synchronous step-down converters
(CH3/4/5), two LDOs with input power as low as 1.5V
(CH6/8), one WLED driver in synchronous high-voltage
step-up mode or low-voltage current regulator mode (CH7),
and a keep-alive LDO (CH9) for RTC application. All
converters are internally frequency compensated and
integrate power MOSFETs. The power converter unit
provides complete protection functions : over-current,
thermal shutdown, over-voltage, and under-voltage
protection. The RT5072 has a WAKEUP impulse
generation circuitry to monitor VIN or BAT installation
event. To fulfill most of applications, the RT5072 has six
preset power-on/off sequences.
The battery charger includes Auto Power Path
Management (APPM). No external MOSFETs are required.
The charger can enter sleep mode when power is removed.
Charging tasks are optimized by using a control algorithm
to vary the charge rate, including pre-charge mode, fast
charge mode and constant voltage mode. The charge
current can also be programmed via the I2C control
interface. The battery regulation voltage and current can
be adjusted by JEITA standard temperature control or other
schemes set via the I2C interface. The internal thermal
feedback circuitry regulates the die temperature to optimize
the charge rate for all ambient temperatures. The charging
task will always be terminated in constant-voltage mode
when the charging current reduces to the termination
current of 10% x ICHG_FAST. The charger includes under-
voltage and over-voltage protection for the supply input
voltage, VIN. The charger includes USB charger detection
circuitry via D+ and D- pins of USB interface to detect
USB standard downstream ports (SDP), USB charging
downstream port (CDP), dedicated charger port (DCP),
or Apple/Sony charger ports. RT5072 uses some
indicators to show charger states : two open drain ports
CHG and CHG2, and an interrupt (INT) to immediately notify
the state change.
The RT5072 has I2C interface to control rich functions of
Power Converter Unit and Charger Unit, and is available in
the WQFN-40L 5x5 package.
Simplified Application Circuit
Adapter/USB
System Power
I2C Control
VIN
SYS
SCL
SDA
GND
RT5072
BAT
PVD1
VO2
LX3
LX4
LX5
VO6
PVD7
VO8
VRTC
Charger for Battery
Step-Up for Motor
Step-Up/Down for I/O
Step-Down for Core
Step-Down for Memory
Step-Down
LDO
Step-Up for LED Backlight
LDO
LDO for RTC
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS5072-00 March 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1

1 Page





RT5072 pdf, ピン配列
Applications
DSC Power Supply System
CMOS-Sensor DV
Portable Devices
Ordering Information
RT5072
Package Type
QW : WQFN-40L 5x5 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
RT5072
Pin Configurations
(TOP VIEW)
40 39 38 37 36 35 34 33 32 31
WAKE 1
30
PVD1 2
29
LX1 3
28
CHG2 4
27
FB7 5
PVD7 6
GND
26
25
LX7 7
24
CHG 8
VO6 9
41 23
22
PVD6 10
21
11 12 13 14 15 16 17 18 19 20
VP
TS
FB3
PVD2
LX2A
LX2B
VO2
FB2
VO8
SCL
WQFN-40L 5x5
Marking Information
RT5072GQW : Product Number
RT5072
GQW
YMDNN
YMDNN : Date Code
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS5072-00 March 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3


3Pages


RT5072 電子部品, 半導体
RT5072
Function Block Diagram
VDDI
+ 3.3V
VP -
VP Buffer with
NTC Type Detector
+
TS -
TS Comparators
BAT SYS VIN
Li+ Battery
Linear Charge
with APPM
CHG_TYP [2 : 0]
CHG_1DET
CHG_2DET
CHGRUN
SYS
Battery
Charger Type
Detector
DP
DN
CHG2
CHG
PVD1
LX1
SYS
Body
Diode
Control
PVD1
SYS
CH1 C-Mode
Step-Up
for 1A
PVD2
LX2A
LX2B
VO2
FB2
PVD3
LX3
FB3
PVD45
LX4
FB4
LX5
VO5/FB5
-
+
VREF + DVS
SYS
CH2 LV C-Mode
Sync.
Step-Up/Down
For 1A
VREF + DVS
-
+
SYS
CH3 C-Mode
Step-Down
for 1.3A
VREF + DVS
-
+
SYS
CH4 C-Mode
Step-Down
for 1.3A
VREF + DVS
-
+
PVD45
SYS
CH5
C-Mode
Step-Down
for 0.6A
VREF + DVS
-
+
GND
SYS
PVD1
POR
BAT
VIN
SYS
VDDI
SYS
CH9 RTC LDO
with Body Diode
Control
Power Plug-In
Wake up Detector
CH8 Low
VIN LDO
-
+ VREF + DAC
VRTC
WAKE
PVD8
VO8
POR
Enable Control
Sequence Detection
& Control
SYS
I2C Control Interface
(Fast Mode up to 400kb/s)
THR
ECO
PGOOD
SAFE
TS_METER [2 :0 ]
No_BAT
DPM
CHGRUN
SYS
CH7 HV C-Mode
Sync. Step-Up +
Current Source +
Mode Selector
for 1 to 6WLED
-
+
SYS
Interrupt
Handler
Body
Diode
Control
SYS
SYS
VREF + DAC
CH6 Low
VIN LDO
EN
SEQ
SCL
SDA
INT
PVD7
LX7
FB7
PVD6
VO6
-
+ VREF + DAC
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
6
is a registered trademark of Richtek Technology Corporation.
DS5072-00 March 2015

6 Page



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共有リンク

Link :


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RT5072

Multi-Channel PMU

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