AMSCO AS3604

AS3604
Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential
austriamicrosystems
Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential
AS3604
AS3603 with Momentary Power Loss Detection, synchronous DCDC
and increased driving capability of the LDOs
General Description
The AS3604 is based on the architecture of the
AS3603. It has additional functions like momentary
power loss detection, a synchronous DCDC buck
converter, charger resume operation and increased
driving capability of the LDOs.
Key Features
The AS3604 features all the functions of the
AS3603 with the following additions (marked with
boldface italcs):
Momentary Power Loss Detection
− Detect a short interruption (<200ms) of
the battery supply (e.g. due to a dropped
phone)
Ten Programmable High Performance LDOs
− Two Digital Low-Power LDOs (0.75 to 2.5V,
200mA; 250mA up to 1.4V)
− Three RF Low-Noise LDOs (1.85 to 3.4V,
200mA)
− Two RF Low-Noise LDOs (1.85 to 3.4V,
150mA)
− One SIM Low-Power LDO (3.0V, 20mA)
− One Periphery Low-Noise LDO (2.5 to
3.2V, 200mA)
− One Low-Power LDO (2.5V, 10mA)
Programmable High Efficiency DC/DC
Converters
− Step-down: 0.8V-3.4V, up to 500mA with
2.2MHz operating frequency and small
external coil (2.2uH))
− Step Up: 15V, 45mA, (for White LEDs)
Stereo Audio Power Amplifier
− 0.5W @ 4Ω -Stereo
− 1W @ 8Ω -Bridged
− Digital Volume Control, 3dB Steps
− Click- and Pop-Less Start-Up and PowerDown
Complete Chemistry-Independent Battery
Charger
− Integrated Fuel Gauge
− Automatic Trickle Charging
− Programmable Constant Current Charging
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Programmable Constant Voltage Charging
Programmable Pulse Charging
Safety Functions (Low Battery Shutdown)
Operation without Battery
No-Battery Detection
Can regulate the current through the
battery or from the charger
− Charger Input Overvoltage protection
(6V)
− Shutdown even with connected charger
− Charger Resume operation
− Charger Interrupts (Inserted, Removed,
Overvoltage, Resume)
Four 8-Bit Programmable Current Sources
(0.625mA to 160mA) support:
− Buzzer
− Vibrator
− LEDs
Wide Battery Supply Range 3.0 to 5.5V
Four General Purpose Switches (1Ω and 2Ω)
Three Programmable General Purpose I/O Pins
On-Chip Bandgap Tuning for High Accuracy
(±1%)
Integrated Programmable Watchdog (7.5 to
1900ms)
Programmable Reset (10 to 110ms)
Shutdown Current typ 7µA (2.5V Always On)
Overcurrent and Thermal Protection
0.35µ CMOS Solution
48-Pin, 6x6mm QFN Package (0.4mm pitch)
2.1 Watt Power Dissipation @ TAMBIENT = 70ºC
Almost Pin Compatible to AS3603 (only one
pin changed)
−
−
−
−
−
−
Application
Multi-standard power management for mobile
phones, PDAs, and 1-cell Li+ or 3 to 4-cell Ni-MH
powered devices.
Revision 1.0 / 20060505
1-4
AS3604
Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential
austriamicrosystems
1 Block Diagram
Figure 1 – AS3604 block diagram differences to the AS3603 marked with blue
Buzzer Vibrator
C1
1 F
CURR4 CURR3 CURR2 CURR1
D1
MBR0520
VBAT
STEPUP
Step Up DC/DC
Converter
<=15V
45mA
Current Source
4x(0.6-160mA)
C2
330nF
L1 22 H
CAPP
V2_5
Charge Pump
4.74V-5.25V
20mA
VBAT_3
VBAT
CAPN
V5_6
C3
1 F
Analog LDO
Low Noise
2.5-3.2V
200mA <=2.6V
150mA
possible
VANA_1
Analog LDO
Low Noise
1.85-3.4V
200mA <=2.6V
150mA
possible
VANA_2
C4
1 F
VBAT_1
3.0-5.5V
AS3604
Power Management
Unit
AOUT_L
C20
>=100 F
>=4
LS2
C23
100nF
IN_L
RF LDO
Low Noise
1.85-3.4V
150mA
AIN_R
IN_R
C24
100nF
AOUT_R
RF LDO
Low Noise
1.85-3.4V
200mA (<=2.6V)
VCHARGER
C26
1 F
R1
2k
Q1
Si3441
VBAT
All caps
on VBAT
>= 10 F
total
1W Audio
Amplifier
C25
100nF
C21
>=100 F
DC
Charger
Adapter
<=15V
AIN_L
AGND
>=4
LS3
C27
6V
Interrupt
and Switchoff
Overvoltage
LiIon
LiMH
NiMH
VGATE
3.6V Li-Ion
3.6V NiMH
4.8V NiMH
R2
4.7k ISENSEP
R4
50m
C28
1 F
R3 ISENSEN
4.7k
RF LDO
Low Noise
1.85-3.4V
200mA (<=2.6V)
Internal LDO
2.5V
10mA
Fuel
Gauge
GPIO
Serial
Interface
Digital LDO
0.75-2.5V 250mA @ 1.4V
200mA
possible
Digital LDO
0.75-2.5V 250mA @ 1.4V
200mA
possible
POR
SDO
Feedback
Digital Logic and
References
SCLK
Synchronous Step Down DC/DC
Converter 2.2MHz
0.6-3.4V, 500mA
I/F
Boot
ROM
SCSB
SIM LDO
3.0V, 20mA
RESET
RBIAS
VANA_1
R5 100k
RESET
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R6
220k
CREF
VBAT_4
3.0-5.5V
C9
1 F
VRF_2
C10
1 F
VRF_3
C11
1 F
VBAT_5
3.0-5.5V
C12
1 F
VRF_4
C13
1uF
V2_5
on switch
F 1µF if power loss
detection is not used
GPIO2
Interrupt, LCD
Control etc
GPIO3
GPIO4 removed
3.0-5.5V
VBAT_6
ON
SDI
C8
1 F
GPIO1
Momentary
Power Loss
Detection
(200ms)
Adjustable
Shutdown
with
Charger Restart
Chrgarger
possible
Added Charger
removed Interrupt
Charger
VANA_1
resume @ 4.1V
VRF_1
C7
VANA_1
V5_6
EOC does not
stop charger
(configurable)
C6
1 F
V2_5
Battery
Charger
GND_SENSE
V2_5 or
VBAT
RF LDO
Low Noise
1.85-3.4V
150mA
C5
1 F
Pad
VDIG_1
C14
1 F
VDIG_2
C15
1 F
VDD_DIG
1.0-5.5V
C30
1 F
VBAT_2
LX
C16
1 F
VSIM
3.0-5.5V
L2
H
C17
1 F
C18
10 F
C19
1 F
Rprogram
R7
C29
RPROGRAM
100nF
Revision 1.0 / 20060505
2-4
AS3604
Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential
austriamicrosystems
Figure 2 – AS3604 block diagram
Buzzer Vibrator
C1
1 F
CURR4 CURR3 CURR2 CURR1
D1
MBR0520
VBAT
STEPUP
Step Up DC/DC
Converter
<=15V
45mA
Current Source
4x(0.6-160mA)
C2
330nF
L1 22 H
CAPP
V2_5
Charge Pump
4.74V-5.25V
20mA
VBAT_3
VBAT
CAPN
V5_6
C3
1 F
Analog LDO
Low Noise
2.5-3.2V
150mA
VANA_1
Analog LDO
Low Noise
1.85-3.4V
150mA
VANA_2
C4
1 F
VBAT_1
3.0-5.5V
AS3604
Power Management
Unit
AOUT_L
C20
>=100 F
>=4
LS2
C23
100nF
IN_L
RF LDO
Low Noise
1.85-3.4V
150mA
AIN_R
IN_R
C24
100nF
AOUT_R
RF LDO
Low Noise
1.85-3.4V
200mA (<=2.6V)
VCHARGER
R1
2k
Q1
Si3441
C27
Overvoltage
6V
C26
1 F
VBAT
All caps
on VBAT
>= 10 F
total
1W Audio
Amplifier
C25
100nF
C21
>=100 F
DC
Charger
Adapter
<=15V
AIN_L
AGND
>=4
LS3
LiIon
LiMH
NiMH
VGATE
3.6V Li-Ion
3.6V NiMH
4.8V NiMH
R2
4.7k ISENSEP
R4
50m
C28
1 F
RF LDO
Low Noise
1.85-3.4V
200mA (<=2.6V)
Internal LDO
2.5V
10mA
VANA_1
V5_6
Adjustable
Charger Restart
Digital LDO
0.75-2.5V
200mA
GND_SENSE
Digital LDO
0.75-2.5V
200mA
ON
SDO
Feedback
Digital Logic and
References
SCLK
Synchronous Step Down DC/DC
Converter 2.2MHz
0.6-3.4V, 500mA
I/F
Boot
ROM
SCSB
SIM LDO
3.0V, 20mA
RESET
RBIAS CREF
VANA_1
R5 100k
RESET
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VBAT_4
3.0-5.5V
C9
1 F
VRF_2
C10
1 F
VRF_3
C11
1 F
VBAT_5
3.0-5.5V
C12
1 F
VRF_4
C13
1uF
V2_5
on switch
F 1µF if power loss
detection is not used
GPIO2
Interrupt, LCD
Control etc
GPIO3
VBAT_6
VANA_1
Serial
Interface
C8
1 F
GPIO1
GPIO
POR
SDI
VRF_1
C7
Momentary
Power Loss
Detection
(200ms)
Fuel
Gauge
C6
1 F
V2_5
Battery
Charger
R3 ISENSEN
4.7k
V2_5 or
VBAT
RF LDO
Low Noise
1.85-3.4V
150mA
C5
1 F
R6
220k
Pad
3.0-5.5V
VDIG_1
C14
1 F
VDIG_2
VDD_DIG
C16
1 F
VSIM
1.0-5.5V
C30
1 F
VBAT_2
LX
C15
1 F
3.0-5.5V
L2
H
C17
1 F
C18
10 F
C19
1 F
Rprogram
R7
C29
RPROGRAM
100nF
Revision 1.0 / 20060505
3-4
AS3604
Preliminary Product Brief and AS3603/04 Delta Sheet, Confidential
austriamicrosystems
Copyright
Copyright © 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, AustriaEurope. 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 of their respective companies.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent identification 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.
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or flow out of austriamicrosystems AG rendering of technical or other services.
Contact Information
Headquarters:
austriamicrosystems AG
Business Unit Communications
A 8141 Schloss Premstätten, Austria
T. +43 (0) 3136 500 0
F. +43 (0) 3136 5692
info@austriamicrosystems.com
For Sales Offices, Distributors and Representatives, please visit:
www.austriamicrosystems.com
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– a leap ahead
Revision 1.0 / 20060505
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