TPS65800 www.ti.com SLVS606 – SEPTEMBER 2005 • • • • • • LDO2 LDO0 • 36 35 34 33 32 VIN_LDO35 • SYS_IN • • PWM 37 • LED_PWM 38 • VIN_LDO02 39 PGND3 40 LDO1 41 SM3SW 42 L3 31 30 29 GPIO1 43 28 LDO3 SM1 44 27 LDO4 PGND1 45 26 L1 46 25 LDO5 AGND2 VIN_SM1 AGND1 47 24 ANLG1 48 23 SM2 49 22 ANLG2 ADC_REF VIN_SM2 GROUND PAD 50 21 RESPWRON L2 51 20 TRSTPWON PGND2 52 19 INT GPIO2 ADC_TRG (GPIO3) RED GREEN 53 18 BA T 54 17 BA T 55 16 AGND0 15 HOT_RST 9 10 11 12 13 14 DPPM 8 TMR 7 TS 6 ISET1 5 OUT 4 LDO_PM 3 AC 2 OUT 1 SIM 56 USB • • SDAT • • R TC_OUT • • SM3 • FB3 • BLUE • Linear Charge Management for Single Li-Ion, Li-Pol Cell, Including Charge Status with Reverse-Current, Short-Circuit, Thermal Protection, and Selectable Charging Voltage (4.2-V or 4.4-V) DPPM Management to Allow AC Adapter or USB to Simultaneously Power the System and Charge the Battery, Supporting up to 1.5 A Integrated USB Charge Control With Selectable Charge Rates Battery Monitoring, Including Temperature Control and Recharge Detection 3.3-V, 20-mA, LDO for USB Enumeration 2 High-Efficiency Wide-Range, 600 mA Adjustable Output Buck DC-DC Converters Programmable Power-Sequencing Options CCD or LCD Boost Regulator Driving up to 6 White LEDS 2 Programmable General-Purpose LDOs 3 Programmable High-PSRR LDOs SCLK • Programmable 1.8-/3.0-V SIM Supply 1 Fixed 3.3-V LDO Backup Regulated Output for Real Time Clock (RTC) Applications With Low Leakage Current 8-Channel (2 External) A/D Converter With 10-Bit Resolution 3 Programmable General-Purpose Input/Output Ports 2 PWM Open-Drain Drivers RGB Programmable Current-Source LED Driver Automatic Sleep Mode for Low-Power Operation I2C Interface With Comprehensive Set of Control Registers Adjustable Reset Controller Management With the Host Processor Small and Thermally-Efficient QFN, 8 × 8 mm Package. Operating Ambient Temperature –40°C to 85°C LDO35_REF FEATURES QFN 56-Pin, 8 x 8 mm Package (Top View - Not To Scale) Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. Copyright © 2005, Texas Instruments Incorporated PRODUCT PREVIEW INTEGRATED SINGLE-CELL LITHIUM-ION BATTERYAND POWER-MANAGEMENT IC TPS65800 www.ti.com SLVS606 – SEPTEMBER 2005 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DESCRIPTION The TPS65800 is designed to provide, in a single monolithic IC, flexible charge and system power-path management for a USB-port and ac-adapter supply; as well as multiple power supply outputs, and a number of value-added circuit options to supply an integrated solution for applications powered by one Li-Ion or Li-Polymer cell, and requiring multiple voltage rails. The TPS65800 features two highly efficient, step-down converters targeted at providing the core voltage and peripheral I/O rails in a processor-based system. Both converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The TPS65800 also integrates a boost-type LED driver, 6 LDO regulators (5 programmable and one fixed), one programmable SIM interface LDO, and an integrated backup block for a battery/rechargeable capacitor. PRODUCT PREVIEW The TPS65800 powers the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination and system operation with an absent or defective battery pack. The system can instantaneously turn on from an external power source in the case of a deeply discharged battery pack. The TPS65800 automatically selects the USB-port or the AC-adapter as the power source for the system. In the USB configuration, the host can select from the two preset charge rates of 100 mA and 500 mA. The TPS65800 dynamically adjusts the USB charge rate based on system load to stay within the 100 mA or 500 mA charge rates. In the ac-adapter configuration an external resistor sets the magnitude of the charge current. The TPS65800 charges the battery in three phases: Conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The TPS65800 automatically re-starts the charge if the battery voltage falls below an internal threshold. The TPS65800 also features an 8-channel (2 external) 10-bit successive-approximation A/D converter with external trigger capabilities performing single, multiple, and continuous readings; and, returning maximum, minimum, or continuous average values. It also has three programmable general purpose input output (GPIO) ports . GPIO3 is programmed by default as a trigger for the A/D converter. Two general purpose PWM drivers and an RGB driver, with programmable current, are also included to provide a highly integrated solution suitable for hand-held and other portable applications. TPS65800 OUTPUTS (1) AND OPERATIONAL RANGE Supply Pin Type VOUT (V) VOUT NOM (V) IO Max (mA) Acc % Steps Eff % 90 SM1 44 Buck converter 0.6–1.8 1.24 600 3 32 SM1STANDBY 44 Buck converter 0.6–1.8 1.24 600 3 32 SM2 49 Buck converter 1.0–3.4 1.8 600 3 32 90 SM2STANDBY 49 Buck converter 1.0–3.4 1.8 600 3 32 90 SM3 42 Boost output 5–25 Current driven 25 10 256 80 SIM 5 General purpose LDO 1.8 or 3.0 1.8 8 5 2 – LDO_PM 10 General purpose LDO (only active if AC or USB present) 3.3 3.3 20 5 Fixed – LDO0 32 General purpose LDO. Disabled by default 3.3 3.3 150 3 Fixed – LDO1 37 General purpose LDO 1.25–3.3 2.85 150 3 8 – LDO2 33 General purpose LDO 1.25–3.3 3.3 150 3 8 – LDO3 28 High PSRR LDO 1.224–4.4 1.25 100 3 128 – LDO4 27 High PSRR LDO 1.224–4.4 2.8 100 3 128 – LDO5 26 High PSRR LDO 1.224–4.4 2.75 100 3 128 – (1) 2 All outputs can be controlled and programmed by an I²C compatible interface. Temperature range is –40 to 85°C TPS65800 www.ti.com SLVS606 – SEPTEMBER 2005 Supply Pin Type VOUT (V) VOUT NOM (V) 3.1 3.1 IO Max (mA) Acc % Steps 8 5 Fixed Eff % RTC_OUT 4 Linear regulator and charger PWM 34 PWM (adjustable frequency and duty cycle) 150 mA – LED_PWM 36 PWM LED driver (fixed frequency adjustable duty cycle) 150 mA GPIO1,3 General purpose Input and output ports open drain 5 (1) mA RGB Red, Green and Blue LED driver (current source) 12 mA (1) When configured as output FUNCTIONAL BLOCK DIAGRAM OUT AC OUT LDO 3.3 V, 10 mA USB BAT BAT INT BIAS ISET1 Controller Series interface REGISTERS STATUS Controller interface VIN_SM1 INT BIAS AGND0 INT BIAS HOT_RST RESPWRON TRSTPWON MAIN RESET CONTROL DPPM STATUS Controller interface ENABLE OSC STATUS Controller interface THERMAL LOOP REF ENABLE OSC STATUS Controller interface I2C Interface EEPROM STATUS SYS_IN INT UVLO MONITOR INT BIAS Controller interface LDO0 3.3 V, 150 mA Gen purpose LDO OSC BUS INT BIAS ENABLE STATUS Controller interface ENABLE OSC STATUS Controller interface INTERNAL OSCILLATOR VIN_LDO12 L1 SM1 PGND1 VIN_SM2 SM2 core 1.0−3.4 V, 600 mA L2 SM2 PGND2 REF INT BIAS I2C Interface SM1 core 0.6−1.8 V, 600 mA PRODUCT PREVIEW SDAT Controller interface SCLK TS TMR LINEAR CHARGER AND SUPPLIES CONTROL ENABLE INTERNAL BIAS STATUS AC USB BAT LDO_PM L3 SM3 SM3SW FB3 SMPS BOOST LED DRIVER 25 V, 30 mA REF PGND3 VIN_LDO LDO1 AGND1 1.8−3.3 V, 150 mA Gen purpose LDO ENABLE STATUS Controller interface 1.8−3.3 V, 150 mA Gen purpose LDO ENABLE STATUS Controller interface INT BIAS STATUS BUS CONTROLLER I2C ENABLE STATUS Controller interface SIM INTERFACE 1.8 V, 3.0 V, 8 mA SIM REF LDO2 VIN_LDO35 INT BIAS ENABLE STATUS Controller interface VREF REF_BUS CONTROLLER RTC_OUT RTC backup 3.1 V, 8 mA ENABLE STATUS Controller interface OUT AGND2 LDO4 1.8−3.3 V, 100 mA High PSSR LDO Controller interface ANLG4 ANLG5 ANLG6 ANLG7 ANLG8 PWM PWM driver PWM_LED RED ENABLE Controller interface ENABLE STATUS GPIO’S RGB drivers GREEN BLUE ENABLE STATUS Controller interface ADC_REF ANLG2 ANLG1 GND PAD Jan−17−2005 GPIO2 ADC_TRG (GPIO3) 1.8−3.3 V, 100 mA High PSSR LDO GPIO1 LDO5 ENABLE Controller interface Analog multiplexer 1.8−3.3 V, 100 mA High PSSR LDO Internal inputs LDO35_REF Controller interface LDO3 A/D Converter REF 3