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| Pr oduc t Br ief P M B 6 821 SM -Power3 - Highly Integrated Power Ma nagement Units fo r Feature Rich Mobile De vi ces S M - P O W E R 3 extends the SM-Power family with a new highly integrated power management IC. It is optimized to support mobile devices based upon S-Gold3 and S-Gold3H, with features ranging from EDGE up to 3G and HSDPA. S M - P O W E R 3 is designed for mobile systems composed of digital or mixed signal baseband ICs, analog components, RF transceiver ICs, LCD/TFT graphic displays with backlight, camera, loudspeaker, and USB interface. S M - P O W E R 3 also supports charging for mobile rechargeable batteries like Li-Ion or Li-Polymer. It provides the different supply voltages for the system using highly efficient DC/DC buck and boost converters and linear low-dropout regulators (LDO's). I N A D D I T I O N , the SM-Power3 generates a power on reset, stand-by voltages, and supports various low power modes. T H E S M - P O W E R 3 provides all functions needed for the system power management with a minimized bill of material and size of external components. Features General - Software-controlled charging of Lithium-Ion or Li-Polymer batteries - Different low-power modes with very low power consumption - Temperature monitoring with built-in over-temperature warning Switching converters - SD1: Fully integrated high-efficiency step-down converter with dynamic output voltage scaling and PFM low-power mode - SD2: Fully integrated high-efficiency step-down converter with PFM low-power mode - SU1: 5.6 ... 25 V Step-up converter driving white LED for backlight and flashlight Linear Low-Dropout (LDO) regulators - 7 General-Purpose LDO's - 5 Low-Noise LDO's - 3 low-power LDO's LED Control - 3x PWM-modulated control signal - Driver for white LEDs, e.g. for flashlight - Support for LEDs connected in series - Support for trickle charging LED and indicator LED Charger Section - Fast charging - Constant-current charging (active trickle-charge mode) - Pre-charge for deeply discharged batteries (trickle-charge mode) - Charging through USB - Charging with up to 10 V charger voltage - Withstands charger voltages up to 15 V Motor Driver - Single ended linear controlled vibrator motor driver - Optionally PWM controlled USB Transceiver 2.0 - USB 2.0 transceiver - Integrated pull-up/pull-down resistors Audio Amplifier - Battery-driven 700 mW differential audio amplifier capable of driving 8 loudspeakers - Two gain stages including overdrive for ringing tones. PSRR @ 4 kHz > 90 dB. - Low-power consumption Interfaces - I2C control interface for device configuration - Hardware-controlled LDO and SD1 voltage setting - Power-On reset generation. Interrupt (event) line for indication of status change. - Digital interface to USB transceiver and RS232 serial interface Control Unit - Pulse width modulated (PWM) LED driver for dimmed light. On/off switch. - Over-temperature warning - State machine to control System Start-Up - Under-voltage shutdown with defined system behaviour - Charger detection - Detection of battery insertion/removal - Independent LDO control (switch on/off, standby) - Voltages programmable by software and hardware - ID registers - System watchdog timer - On-chip oscillator Package - Ultra-thin PG-WFSGA 121 (7 x 7 x 0.8 mm) Evaluation kits www.infineon.com/mobilesolutions M obil e S ol u t i o ns Product Brief Block Diagram White LED Boost Converter 5.6 V ... 25 V 3 LED PWM Drivers 5 Low Noise LDO's USB v2.0 USB Charger Vibra Motor Driver 10 General Purpose LDO's Battery Charger Voltage Scaling 2 DC/DC Step down Converter Power ON I2C I/F Digital Reset HandsFree Audio Amplifier How to reach us: http://www.infineon.com Published by Infineon Technologies AG 81726 Munchen, Germany (c) Infineon Technologies AG 2006. All Rights Reserved. Legal Disclaimer The information given in this Product Brief shall in no event be regarded as a guarantee of conditions or characteristics ("Beschaffenheitsgarantie"). With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Ordering No. B134-H8836-X-X-7600 Printed in Germany PS 06061. nb Published by Infineon Technologies AG |
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