AS3608A-BQFP-00

AS3608A-BQFP-00 Datasheet

AS3608

Part	Datasheet
AS3608A-BQFP-00	AS3608A-BQFP-00 (pdf)

Related Parts	Information
AS3608A-BQFP	AS3608A-BQFP
AS3608 EVAL BOARD	AS3608 EVAL BOARD

PDF Datasheet Preview
Data Sheet AS3608 System PMU with HV Back Light Driver 1 General Description The AS3608 is an ultra compact System PMU with integrated battery charger and HV back light driver. The device offers advanced power management functions. All necessary ICs and peripherals in a battery powered mobile device are supplied by the AS3608. It features 3 DCDC converters as well as 5 low noise LDOs. The different regulated supply voltages are programmable via the serial control interface. The step-up converter for the backlight can operate up to 30V. Both constant voltage OLED supply as well as constant current white LED backlight operations with 2 current sinks are possible. An internal voltage protection is limiting the output voltage in the case of external component failures. AS3608 also contains a Li-Ion battery charger with constant current and constant voltage. The maximum charging current is 1A. An integrated battery switch and an optional external switch are separating the battery during charging or whenever an external power supply is present. With this switch it is also possible to operate with no or deeply discharged batteries. A programmable current limit can be used to control the maximum current used from a USB supply. The single supply voltage may vary from 2.7V to 5.5V. 2 Key Features Power Management Voltage Generation 3 DCDC step down regulators - DVM 0.61V-3.3V, - 50µA quiescent current - Selectable switching frequency 2 or 1MHz - with combined DCDC 2 & 3 1 LDO low noise 2.7V 2.3-3.5V , 100mA 3 or 4 LDOs low noise - 1.2-3.5V 160/270mA - 30µA quiescent current low power mode Power supply supervision LDO5 4sec and 8sec emergency shut-down Hibernation function HV Backlight Driver Step up for 30V backlight with internal transistor Voltage control mode and over-voltage protection 2 programmable current sink max. 38mA Max. with ext. transistor or Possible external PWM dimming input Battery Charger Prog. trickle charging 25-265mA Prog. constant current charging 94-1060mA Prog. constant voltage charging 3.9V-4.25V Charger time-out and temperature supervision Selectable current limitation for USB mode Integrated battery switch & ideal diode External battery switch control output General Battery and Temperature Supervisor 4 General Purpose IOs 10bit general purpose ADC input PWM dimming input or wake-up input Status output for charger, low battery, power good and powerup key OTP Programmable BOOT Sequence Programmable regulator default voltages Programmable start-up sequence Applicable for LDO 1-4 and DCDC 1-3 Control Interface I2C control lines, including watchdog Power-Up input Interrupt output Bidirectional reset, with selectable delay Low power standby mode, 180µA with LDO5 on Power-On Reset Circuit Packaging QFN36 6x6mm, 0.5mm pitch 3 Application The devices are ideal for Portable Media Players and Portable Navigation Devices, e-Books, Tablet PCs, etc 1 - 67 AS3608 2v2 Data Sheet - Application Figure AS3608 Block Diagram 2 - 67 AS3608 2v2 Data Sheet - Contents Contents 1 General Description 1 2 Key 1 3 Application 1 4 Pin Assignments 5 Pin 5 Absolute Maximum Ratings 7 6 Electrical 8 7 Typical Operating Characteristics 10 8 Detailed Description - Power Management 11 Low Drop Out Regulators 11 LDO5 11 LDO 1, LDO2, LDO3 & 12 Parameter 12 DCDC Step-Down 14 Functional Description 15 Parameter 16 30V Step-Up DCDC 18 Voltage Feedback and OV Protection 18 Voltage 18 DLS & Dimming 19 Current Sinks 19 Parameter 19 21 Soft Charge/Trickle Charge 22 End of Charge Detection 22 VSUPSW and Temperature 22 Battery Temperature Supervision 22 No Battery 22 Charger Modes 23 Parameter 23 9 Detailed Description - SYSTEM Functions 25 SYSTEM 25 Power Up/Down Conditions 25 Start-up Sequence 25 Hibernation 26 Supervisor 26 VSUP Supervision 26 VDD27 Supervision 26 Junction Temperature Supervision 26 Power Rail Monitoring 26 Interrupt Generation 27 IRQ Source Interpretation 27 Interrupt Sources 27 10-Bit ADC 28 Input Sources 28 3 - 67 AS3608 2v2 Data Sheet - Contents Parameter 28 GPIO Pins 29 2-Wire-Serial Control Interface 30 Protocol 30 Parameter 33 10 Register Definition 34 11 Application Information 61 Pad Cells 61 Application Schematics 62 12 Package Drawings and Markings 63 13 Ordering Information 66 4 - 67 AS3608 2v2 Data Sheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments TopView Pin Descriptions Note Pin description may change in preliminary data sheets. Table Pin Description for AS3608 Pin Name VBATSW Pin Number AS3608 1 Type SUP IO Description Battery Switch Terminal to be connected to the Li-Ion battery VSUPSW SUP IO Battery Switch Terminal to be connected to system supplies VSUPx VUSB SUP IN Charger or USB Bus Power Input BATTEMP ANA IO Li-Ion Charger Battery Temp. Sensor Input EXTBATSW ANA OUT External Battery Switch Gate Driver Output VDD27 PVDD4 VSUP5 PVDD3 PVDD2 SUP IO LDO5 Output default 2.7V ANA OUT LDO4 Output SUP IN LDO3/4 & LDO5 Pos. Supply Terminal, connect to VSUPSW ANA OUT LDO3 Output ANA OUT LDO2 Output PVDD1 VSUP4 ANA OUT LDO1 Output SUP IN LDO1/2 Pos. Supply Terminal if not used open always needed open always needed open always needed open always needed 5 - 67 AS3608 2v2 Data Sheet - Pin Assignments Table Pin Description for AS3608 Pin Name Pin Number AS3608 VSUP1 LXC1 Data Sheet - Ordering Information 13 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Ordering Code AS3608-BQFP-FF AS3608-BQFP-00 Marking R2v2-FF R2v2-00 Sequence sequence programmable on request default sequence Description System PMU with HV Backlight System PMU with HV Backlight AS3608-BQFP-xx R2v2-xx customer specified System PMU with HV Backlight Delivery Form Package Tape & Reel QFN36 6x6 0.5mm pitch dry pack Tape & Reel dry pack Tape & Reel dry pack QFN36 6x6 0.5mm pitch QFN36 6x6 0.5mm pitch Note All products are RoHS compliant and austriamicrosystems green. Buy our products or get free samples online at ICdirect: Technical Support is found at For further information and requests, please contact us or find your local distributor at 66 - 67 AS3608 2v2 Data Sheet - Copyright Copyright Copyright 1997-2010, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 67 - 67

PDF Datasheet Preview

Data Sheet

AS3608

System PMU with HV Back Light Driver
1 General Description

The AS3608 is an ultra compact System PMU with integrated battery charger and HV back light driver. The device offers advanced power management functions. All necessary ICs and peripherals in a battery powered mobile device are supplied by the AS3608. It features 3 DCDC converters as well as 5 low noise LDOs. The different regulated supply voltages are programmable via the serial control interface. The step-up converter for the backlight can operate up to 30V. Both constant voltage OLED supply as well as constant current white LED backlight operations with 2 current sinks are possible. An internal voltage protection is limiting the output voltage in the case of external component failures. AS3608 also contains a Li-Ion battery charger with constant current and constant voltage. The maximum charging current is 1A. An integrated battery switch and an optional external switch are separating the battery during charging or whenever an external power supply is present. With this switch it is also possible to operate with no or deeply discharged batteries. A programmable current limit can be used to control the maximum current used from a USB supply. The single supply voltage may vary from 2.7V to 5.5V.
2 Key Features

Power Management

Voltage Generation 3 DCDC step down regulators
- DVM 0.61V-3.3V, - 50µA quiescent current - Selectable switching frequency 2 or 1MHz - with combined DCDC 2 & 3 1 LDO low noise 2.7V 2.3-3.5V , 100mA
3 or 4 LDOs low noise
- 1.2-3.5V 160/270mA - 30µA quiescent current low power mode Power supply supervision LDO5
4sec and 8sec emergency shut-down

Hibernation function

HV Backlight Driver Step up for 30V backlight with internal transistor Voltage control mode and over-voltage protection 2 programmable current sink max. 38mA Max. with ext. transistor or Possible external PWM dimming input

Battery Charger Prog. trickle charging 25-265mA Prog. constant current charging 94-1060mA Prog. constant voltage charging 3.9V-4.25V Charger time-out and temperature supervision Selectable current limitation for USB mode Integrated battery switch & ideal diode External battery switch control output

General

Battery and Temperature Supervisor 4 General Purpose IOs
10bit general purpose ADC input PWM dimming input or wake-up input Status output for charger, low battery, power good and powerup key OTP Programmable BOOT Sequence Programmable regulator default voltages Programmable start-up sequence Applicable for LDO 1-4 and DCDC 1-3 Control Interface I2C control lines, including watchdog Power-Up input Interrupt output Bidirectional reset, with selectable delay Low power standby mode, 180µA with LDO5 on Power-On Reset Circuit Packaging QFN36 6x6mm, 0.5mm pitch
3 Application

The devices are ideal for Portable Media Players and Portable Navigation Devices, e-Books, Tablet PCs, etc
1 - 67

AS3608 2v2

Data Sheet - Application

Figure AS3608 Block Diagram
2 - 67

AS3608 2v2

Data Sheet - Contents

Contents
1 General Description 1 2 Key 1 3 Application 1 4 Pin Assignments 5

Pin 5 Absolute Maximum Ratings 7 6 Electrical 8 7 Typical Operating Characteristics 10 8 Detailed Description - Power Management 11

Low Drop Out Regulators 11 LDO5 11 LDO 1, LDO2, LDO3 & 12 Parameter 12

DCDC Step-Down 14 Functional Description 15 Parameter 16
30V Step-Up DCDC 18 Voltage Feedback and OV Protection 18 Voltage 18 DLS & Dimming 19 Current Sinks 19 Parameter 19
21 Soft Charge/Trickle Charge 22 End of Charge Detection 22 VSUPSW and Temperature 22 Battery Temperature Supervision 22 No Battery 22 Charger Modes 23 Parameter 23
9 Detailed Description - SYSTEM Functions 25 SYSTEM 25 Power Up/Down Conditions 25 Start-up Sequence 25 Hibernation 26 Supervisor 26 VSUP Supervision 26 VDD27 Supervision 26 Junction Temperature Supervision 26 Power Rail Monitoring 26 Interrupt Generation 27 IRQ Source Interpretation 27 Interrupt Sources 27 10-Bit ADC 28 Input Sources 28
3 - 67

AS3608 2v2

Data Sheet - Contents

Parameter 28 GPIO Pins 29 2-Wire-Serial Control Interface 30
Protocol 30 Parameter 33 10 Register Definition 34 11 Application Information 61 Pad Cells 61 Application Schematics 62 12 Package Drawings and Markings 63 13 Ordering Information 66
4 - 67

AS3608 2v2

Data Sheet - Pin Assignments
4 Pin Assignments

Figure Pin Assignments TopView

Pin Descriptions

Note Pin description may change in preliminary data sheets.

Table Pin Description for AS3608

Pin Name VBATSW

Pin Number AS3608 1

Type SUP IO

Description Battery Switch Terminal to be connected to the Li-Ion battery

VSUPSW

SUP IO Battery Switch Terminal to be connected to system supplies VSUPx

VUSB

SUP IN Charger or USB Bus Power Input

BATTEMP

ANA IO Li-Ion Charger Battery Temp. Sensor Input

EXTBATSW

ANA OUT External Battery Switch Gate Driver Output

VDD27 PVDD4 VSUP5 PVDD3 PVDD2

SUP IO LDO5 Output default 2.7V

ANA OUT LDO4 Output

SUP IN LDO3/4 & LDO5 Pos. Supply Terminal, connect to VSUPSW

ANA OUT LDO3 Output

ANA OUT LDO2 Output

PVDD1 VSUP4

ANA OUT LDO1 Output

SUP IN LDO1/2 Pos. Supply Terminal
if not used
open always needed
open always needed open always needed open always needed
5 - 67

AS3608 2v2

Data Sheet - Pin Assignments

Table Pin Description for AS3608

Pin Name

Pin Number AS3608

VSUP1

LXC1
Data Sheet - Ordering Information
13 Ordering Information

The devices are available as the standard products shown in Table
Table Ordering Information
Ordering Code AS3608-BQFP-FF

AS3608-BQFP-00

Marking R2v2-FF

R2v2-00

Sequence
sequence programmable on
request
default sequence

Description System PMU with HV Backlight

System PMU with HV Backlight

AS3608-BQFP-xx R2v2-xx customer specified System PMU with HV Backlight

Delivery Form

Package

Tape & Reel QFN36 6x6 0.5mm pitch dry pack

Tape & Reel dry pack

Tape & Reel dry pack

QFN36 6x6 0.5mm pitch QFN36 6x6 0.5mm pitch

Note All products are RoHS compliant and austriamicrosystems green. Buy our products or get free samples online at ICdirect:

Technical Support is found at

For further information and requests, please contact us or find your local distributor at
66 - 67

AS3608 2v2

Data Sheet - Copyright

Copyright

Copyright 1997-2010, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters austriamicrosystems AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
67 - 67

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Datasheet ID: AS3608A-BQFP-00 519691