ATMEL AT73C214J Power management and battery charger for wireless device Datasheet

Features
•
•
•
•
•
•
•
•
Li-Ion or Li-polymer Battery Charger Controller
DC to DC 1.9V/2.5V (VCORE)
LDO 2.7V/2.8V (AVCC)
LDO 2.8V (V-PAD)
LDO 2.8V (V-VIB)
LDO 2.47V/2.66V (BAT-RTC) - Backup Battery Supply
LDO 1.72V/2.66V (VCC-RTC) - RTC Supply
Power Management Startup Controller and Reset Generation
1. Description
The AT73C214 is designed to supply digital, analog, interface, RF and backup sections of generic wireless devices and in particular battery powered applications. It can
be used to supply a CPU with a high efficiency DC-to-DC Converter, Radio Frequency
transceivers with high PSRR and noise performance LDOs, Memories and Analog
Sections with independent LDO channels.
In addition the AT73C214 integrates LDOs to recharge backup elements and convert
voltage to microcontroller RTC supply.
The AT73C214 also includes a low-cost battery charger, using a simple external PNP
transistor for Li-Ion or Li-Polymer batteries. The battery-safe operating conditions are
fully under hardware control during the start up procedure (i.e., when the device is
turned on or a charger is plugged in). The battery precharge is integrated and self
operated by the AT73C214. Then the fast-charge phase and end-of-charge procedure
are transferred to the external microcontroller software.
LDO and DC-to-DC output voltage can be programmed by mask change.
Power
Management for
Mobiles (PM)
AT73C214
Power
Management and
Battery Charger
for Wireless
Devices
Summary
6232AS–PMAAC–24-May-06
2. Block Diagram
Figure 2-1.
Functional Block Diagram
IMAX = 0.8A
VBAT
GATE-CHG
CHG_IN
VBAT
Battery
Charger
Controller
GND
Battery
Charger
CHG
BATMON
To ADC fo Digital MCU
for Battery Monitoring
1MΩ
1%
Under Voltage
GND
DIGITAL
1MΩ
1%
Over Voltage
Li-Ion
Battery
GND
GND
GND
VBAT
FLASH_LED
LED-OUT
GND
DIGITAL
VPAD
DC-ON
POR
DC-ON
PMC
RESET
GENERATOR
35 ms
VBAT > 3.2V
STATE
MACHINE
UP-ON/OFF
UP-ON/OFF
ON/OFF
10 kHz
OSC
ON/OFF
LS
en_vpad
CORE DC/DC
CREF
Vref
FB
DCDC
LP
EN
VCORE
VCORE
1.9/2.5V/300 mA
GND
EN
Over-Temp
DGND
LX
LX
VIN
reset
CREF GND
RESET-B
State Machine Reset
en_vcore
SPI
EN
RESET-B
VPAD
EN
GND1
GND
ECO-MODE
ECO -MODE
ANALOG LDO
VIN
VOUT
AVCC
AVCC
2.7/2.8V/130 mA
VBAT
en_vcore
LDO1
GND
EN-ANALOG-B
AGND
EN-ANALOG-B
EN
AGND
BB1
VIN-REG1
PAD LDO
VBAT
VIN-REG2
VIN
VBAT
LP
RTC SUPPLY BLOCK
BAT-RTC
2.47V/2.66V
5 mA
AGND
GND
2.8V
GND
GND
VBACK
BAT-RTC
VCC-RTC
-
VCC-RTC
1.72V/2.7V
0.5 mA
GND
GND
LDO4
LDO5
AGND1
V-PAD
2.8V/80 mA
LDO2
EN
VIN
V-PAD
VOUT
GND
2.7V
BB1
DEEP
DISCHARGED
EN 2.6V
BB1
VVIB
VBAT
EN
GND
GND GND
VIBRATOR LDO
VIN
en_vcore
VOUT
VIB-OUT
V-VIB
2.8V/130 mA
LDO3
EN
GND
GND
EN-VIB
BB1
GND
DGND
GND
TEST
GND
2
AT73C214 Summary
6232AS–PMAAC–24-May-06
AT73C214 Summary
3. Ordering Information
Ordering Code
Package
Package Type
Tempeature Opeating Range
AT73C214J
TFBGA 49
Green
-40°C to +85°C
3
6232AS–PMAAC–24-May-06
Revision History
Doc. Rev
Date
Comments
6232AS
03-May-06
24-May-06
First issue
Qualified
4
Change Request Ref.
AT73C214 Summary
6232AS–PMAAC–24-May-06
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