at73c201 ATMEL Corporation, at73c201 Datasheet

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at73c201

Manufacturer Part Number
at73c201
Description
Power Management At73c201 Power Supply And Battery Management Ic Preliminary
Manufacturer
ATMEL Corporation
Datasheet
Features
Description
The AT73C201 is a low cost, high performance, fully integrated Battery and Power
Management System for Wireless Cellular Terminals.
The AT73C201 integrates all the regulated power supplies needed to power a terminal
chipset from a Lithium-Ion or Ni-Mh battery pack to Baseband ICs and Memories,
Radio Transceiver, Analog, VCXO, LNA and PA bias and Sim Card in the case of
GSM.
Auxiliary low Ron power supply PMOS switches are available from either the battery
pack or internal regulated power supplies, providing optimum power management by
turning on or off different elements of a handset. The AT73C201 also includes a vibra-
tor motor driver, a set of LED drivers, a smart reset circuit, and a Battery Charger
Switch Driver with built-in state machine for safe boot and pre-charge operation.
In addition, a set of 3 Audio Programmable Gain Amplifiers are provided for handsfree
(on 8
The functions are supervised by a set of voltage monitors, timers and a temperature
shutdown circuit connected to the internal state machine.
Voltages and on-chip temperatures are also visible from an external pin through a mul-
tiplexer for proper connection to the external Baseband ADC.
The AT73C201 is available in a 9x9mm outline, 10x10 ball matrix BGA for optimum
size and performance combination. Its very low standby power dissipation and its high
noise and PSRR performances make the AT73C201 ideally suitable for recent appli-
cations on 2.5G and 3G terminals.
Eight High Performance Low Dropout Voltage Regulators (LDO)
DC to DC 5.6V Converter
One 4.5V Voltage Regulator
10V Supply Generator
Li-Ion and Ni-Mh Battery Charge Control Interface
Analog to Digital 8-bit Converter
Safety Charge Timers
Power On/Off And Reset Control Logic
Over And Under-voltage System Shutdown
Voltage Detectors With Auto Power Off
On-chip Temperature Sensor
NTC Programmable Current Bias
Three Audio Amplifiers
Two Backlight LED Drivers for Keyboard and Display
Two Auxiliary Constant Current Source LED Drivers
Vibrator Driver
Two Power Supply Switches
32 kHz Crystal Oscillator
Two Digital to Analog 8-bit Converters
Serial Peripheral Interface (SPI)
100-Thin Fine-pitch Ball Grid Array Package (TFBGA), 9 x 9 mm
– Three Low Dropout Voltage Regulators (LDO) for Analog, Memories and Baseband
– Two Low Dropout Voltage Regulators (LDO) High PSRR Low Noise for Radio
– Two Low Dropout Voltage Regulators (LDO) Dual Mode High PSRR for Baseband
– 0.5W on 8
– Audio Amplifier for Earpieces
– Audio Amplifier for Car Kit
Digital I/O
Section
Core Section
Loudspeaker), Earpiece and Car Kit easy interfacing.
Audio Amplifier for Handsfree
Note: This is a summary document. A complete document
is not available at this time. For more information, please
contact your local Atmel sales office.
Power
Management
AT73C201
Power Supply
and Battery
Management IC
Preliminary
2741AS–PMGMT–11/03

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at73c201 Summary of contents

Page 1

... Auxiliary low Ron power supply PMOS switches are available from either the battery pack or internal regulated power supplies, providing optimum power management by turning on or off different elements of a handset. The AT73C201 also includes a vibra- tor motor driver, a set of LED drivers, a smart reset circuit, and a Battery Charger Switch Driver with built-in state machine for safe boot and pre-charge operation ...

Page 2

... Functional Diagram Figure 1. AT73C201 Functional Diagram V V GATE V CHG Charge Control Interface SPI Bus NTC NTC Driver 5-bit DAC Measurement Multiplexer V Temperature MES Supervisor Tempeature V BAT Power On Reset OSC2 In Squarer OSC1 OSC2 Out XTAL1 Crystal OSC1 XTAL2 Switches SW1 SW2 AT73C201 ...

Page 3

... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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