System PMIC for Battery Powered Systems BD71805MWV General Description Battery Monitoring and Alarm Output The BD71805MWV is a single chip power management - Under Voltage Alarm while Discharging IC for battery-powered portable devices. It integrates 4 - Over Discharge Current Alarm Bucks, 3 LDOs, 2A single-cell linear charger, OVP, - Over/Under Temperature Alarm Coulomb counter, RTC, 32 kHz crystal circuitry and 3 - Programmable Thresholds and Time Durations GPOs. - Automatic Low Voltage Mode (Battery Protection) 3.5V Detection : Four highly efficient 2.5MHz step-down converters Interrupt to Processor to Ask User Plug-in supply power to the application processor as well as 3.3V Detection : system peripherals such as DDR memory, wireless Interrupt to Processor to Indicate Battery Critically modules, and touch controller. The regulator to the Low Condition processor core supports DVS. The regulators maintain Real Time Clock with 32.768kHz Crystal Oscillator high efficiency over a wide range of current loads by - 32.768kHz Clock Output supporting both PFM and PWM modes. High switching (Open Drain or CMOS Output Selectable) frequency allows the use of smaller and cheaper 3 GPOs (Open Drain or CMOS Output Selectable) inductors and capacitors. Power Control I/O - Power On/Off Control Input Features - Standby Input for Switching ON / STANDBY Mode 4 Buck Converters: - Reset Input to Reset Hung PMIC - 1-2000mA Buck - Power On Reset Output - 3-1000mA Bucks I2C Interface 3 LDOs (General purpose) - 3-300mA LDOs Applications LDO for DDR Reference Voltage E-Book Reader LDO for Secure Non-Volatile Storage (SNVS) Portable Media Players Single-cell Linear LIB Charger with 30V-OVP Portable Navigation Devices - Selectable Charging Voltage : 3.72 to 4.34 V - Programmable Charge Current : 100 to 2000mA - DCIN Over Voltage Protection Key Specifications - Battery Over Voltage Protection Input Voltage Range (DCIN): 3.5V to 28V - Support Battery Supplement Mode Input Voltage Range (VIN,VSYS): 3.3V to 5.5V - Battery Short Circuit Detection Input Voltage Range (DVDD): 1.5V to 3.4V Voltage Measurement for Thermistor Off Current : 25 A (Typ) - Bias Voltage Output for External Thermistor RTC+ Coulomb counter+ LDO SNVS+ 32kOSC only Embedded Coulomb Counter for Battery Fuel Operating temperature range: -40C to +85C Gauging - 15-bit -ADC with External Current Sense Resistor Package W(Typ) D(Typ) H(Max) (10 m, 1%) UQFN64MV8080 8.0mm x 8.0mm x 1.0mm - 1-sec cycle, 28-bit Accumulation - Coulomb Count while Charging/Discharging Status of this document The English version of this document is formal specification. A customer may use this translation version only for a reference to help reading the formal version. If there are any differences in translation version of this document formal version takes priority. Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays . www.rohm.com TSZ02201-0Q4Q0AB00050-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/96 27.Feb.2015 Rev.001 TSZ2211114001 Not Recommended for New DesignsBD71805MWV Typical Applications 3.3V Touch GPO 3.3V I/O SD 3.3V eMMC 3.3V WiFi GPO PMIC 3-GPO GPO 3.3V Xtal BUCK3 RTC HIGH, NVCC33 IO 1.425V + BUCK1 ARM, SOC, PU 32kHz-OSC 1.2V LDO1 NVCC 1P2V i.MX Power ON/OFF I2C Sequencer LDO SNVS EPD SNVS (ON/OFF) 3.3V (i.MX6SoloLite) Coulomb LDO2 Counter 3.3V DCIN LDO3 1.8V BUCK4 NVCC18 IO LIB Charger 1.2V BUCK2 NVCC DRAM OVP PWRON Core1 1.8V 1.2V Core2 DDR I/O R POWER KEY (LPDDR2) 0.6V DVREF (*DVREFIN) EPD R PMIC Figure 1. Typical Applications 1 (Master Control Mode) 3.15V GPO eMMC 3.15V SD 3.15V Touch 3.15V I/O WiFi GPO PMIC 3-GPO GPO Xtal 3.15V RTC BUCK3 HIGH, NVCC33 + 1.375V BUCK 1,2 ARM, SOC, PU 32kHz-OSC 2.5V LDO1 1.8V i.MX LDO 2 Power ON/OFF NVCC18 1.2V Sequencer EPD LDO3 NVCC12, NVCC DRAM 3V LDO SNVS Coulomb SNVS (i.MX6SoloLite) (Always on) Counter I2C DCIN PMIC ON REQ Power ON/OFF PWRON Control LIB Charger BUCK4 OVP DVREFIN LDO DVREF 1.8V Core1 POWER KEY 1.2V Core2 DDR I/O (LPDDR2) 0.6V DVREF EPD (*DVREFIN) PMIC Figure 2. Typical Applications 2 (Slave Control Mode) www.rohm.com TSZ02201-0Q4Q0AB00050-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/96 TSZ22111 15 001 27.Feb.2015 Rev.001 Not Recommended for New Designs