AS3654

AS3654 Datasheet

AS3654 Preliminary Data Sheet, Confidential

Part	Datasheet
AS3654	AS3654 (pdf)

Related Parts	Information
AS3654-T	AS3654-T

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AS3654 Preliminary Data Sheet, Confidential austriamicrosystems nXtMUnSiattfeollritPeorratdabiole Devices AESrr3o6r!5U4 nknown document property name. Specification, Confidential 1 General Description The AS3654 is a highly integrated solution for power supply generation and monitoring, battery management including charging. It is controlled via a serial control interface and integrates all necessary system specific functions such as clock, reset and interrupt generation, voltage and temperature monitoring. 2 Key Features System Control - Serial Control Interface - On/Off Control Module - Reset Generation for system controller - Programmable Interrupt Controller - Low power off mode 9uA 2.5V LDO on Supply Voltage Generation - 1 RF Programmable Low Noise LDOs 400mA - 1 RF Programmable Low Noise LDOs 150mA - 2 Programmable Digital Low Power LDOs 200mA - 2 General Purpose PWM DC/DC step up converter with two programmable current sinks e.g. for white led - 3 General Purpose high efficiency DC/DC step down converter - 1 Low noise charge pump with 5V output voltage - 1 Ultra Low Power 2.5V LDO always on Current sinks - 4 programmable 6-bit from to 40mA optional useable as GPIOs - 3 programmable high voltage 15V 6-bit from to 40mA Power Management Features - Wide Battery Supply Range - On-Chip Bandgap Tuning for High Accuracy ±1% - Current protection - Thermal Protection with internal temperature sensor - 0.35um CMOS Solution Audio - Two Digital Audio Inputs I2S interface - 18 Bit Audio DAC - 2.9V low Noise LDO for Audio DAC - Headphone Amplifier Output with GND separation - GND Buffer for Headphone Amplifier - Line/ Headphone output with GND separation Programmable System clock - MHz to MHz with 100 kHz steps 3 Applications - Power and Audio Management Unit - 1 Cell Li+ or 3 Cell NiMH powered devices - Car Battery powered systems with and without internal battery 10-bit Successive Approximation ADC - 40us conversation time Battery Management - Full featured chemistry independent step down charger with included Gas Gauge and Current limitation. - Ω Battery switch for start-up during trickle charging - Integrated USB charger up to 400mA tje/ptr 1 - 87 AS3654 Specification, Confidential austriamicrosystems 4 Block Diagram Figure 1 AS3654 Application Diagram 3 x 0.6V-3.4V / 500mA VOUT1 VOUT2

PDF Datasheet Preview

AS3654 Preliminary Data Sheet, Confidential
austriamicrosystems
nXtMUnSiattfeollritPeorratdabiole Devices

AESrr3o6r!5U4 nknown document property name.

Specification, Confidential
1 General Description

The AS3654 is a highly integrated solution for power supply generation and monitoring, battery management including charging. It is controlled via a serial control interface and integrates all necessary system specific functions such as clock, reset and interrupt generation, voltage and temperature monitoring.
2 Key Features

System Control
- Serial Control Interface - On/Off Control Module - Reset Generation for system controller - Programmable Interrupt Controller - Low power off mode 9uA 2.5V LDO on

Supply Voltage Generation
- 1 RF Programmable Low Noise LDOs 400mA - 1 RF Programmable Low Noise LDOs 150mA - 2 Programmable Digital Low Power LDOs 200mA - 2 General Purpose PWM DC/DC step up converter
with two programmable current sinks e.g. for white led - 3 General Purpose high efficiency DC/DC step down converter - 1 Low noise charge pump with 5V output voltage - 1 Ultra Low Power 2.5V LDO always on

Current sinks
- 4 programmable 6-bit from to 40mA optional useable as GPIOs
- 3 programmable high voltage 15V 6-bit from to 40mA

Power Management Features
- Wide Battery Supply Range - On-Chip Bandgap Tuning for High Accuracy ±1% - Current protection - Thermal Protection with internal temperature sensor - 0.35um CMOS Solution

Audio
- Two Digital Audio Inputs I2S interface - 18 Bit Audio DAC - 2.9V low Noise LDO for Audio DAC - Headphone Amplifier Output with GND separation - GND Buffer for Headphone Amplifier - Line/ Headphone output with GND separation

Programmable System clock
- MHz to MHz with 100 kHz steps
3 Applications
- Power and Audio Management Unit - 1 Cell Li+ or 3 Cell NiMH powered devices - Car Battery powered systems with and without
internal battery
10-bit Successive Approximation ADC
- 40us conversation time

Battery Management
- Full featured chemistry independent step down charger with included Gas Gauge and Current limitation.
- Ω Battery switch for start-up during trickle charging
- Integrated USB charger up to 400mA
tje/ptr
1 - 87

AS3654

Specification, Confidential
austriamicrosystems
4 Block Diagram

Figure 1 AS3654 Application Diagram
3 x 0.6V-3.4V / 500mA

VOUT1

VOUT2

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Datasheet ID: AS3654 519696