ZHCSO20 may 2021 BQ25723
PRODUCTION DATA
- 1
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Description (continued)
- 6 Device Comparison Table
- 7 Pin Configuration and Functions
- 8 Specifications
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 Power-Up Sequence
- 9.3.2 Vmin Active Protection (VAP) with Battery only
- 9.3.3 Two-Level Battery Discharge Current Limit
- 9.3.4 Fast Role Swap Feature
- 9.3.5 CHRG_OK Indicator
- 9.3.6 Input and Charge Current Sensing
- 9.3.7 Input Voltage and Current Limit Setup
- 9.3.8 Battery Cell Configuration
- 9.3.9 Device HIZ State
- 9.3.10 USB On-The-Go (OTG)
- 9.3.11 Converter Operation
- 9.3.12 Inductance Detection Through IADPT Pin
- 9.3.13 Converter Compensation
- 9.3.14 Continuous Conduction Mode (CCM)
- 9.3.15 Pulse Frequency Modulation (PFM)
- 9.3.16 Switching Frequency and Dithering Feature
- 9.3.17 Current and Power Monitor
- 9.3.18 Input Source Dynamic Power Management
- 9.3.19 Input Current Optimizer (ICO)
- 9.3.20 Two-Level Adapter Current Limit (Peak Power Mode)
- 9.3.21 Processor Hot Indication
- 9.3.22
Device Protection
- 9.3.22.1 Watchdog Timer
- 9.3.22.2 Input Overvoltage Protection (ACOV)
- 9.3.22.3 Input Overcurrent Protection (ACOC)
- 9.3.22.4 System Overvoltage Protection (SYSOVP)
- 9.3.22.5 Battery Overvoltage Protection (BATOVP)
- 9.3.22.6 Battery Discharge Overcurrent Protection (BATOC)
- 9.3.22.7 Battery Short Protection (BATSP)
- 9.3.22.8 System Undervoltage Lockout (VSYS_UVP) and Hiccup Mode
- 9.3.22.9 Thermal Shutdown (TSHUT)
- 9.4 Device Functional Modes
- 9.5 Programming
- 9.6
Register Map
- 9.6.1 ChargeOption0 Register (I2C address = 01/00h) [reset = E70Eh]
- 9.6.2 ChargeCurrent Register (I2C address = 03/02h) [reset = 0000h]
- 9.6.3 ChargeVoltage Register (I2C address = 05/04h) [reset value based on CELL_BATPRESZ pin setting]
- 9.6.4 ChargerStatus Register (I2C address = 21/20h) [reset = 0000h]
- 9.6.5 ProchotStatus Register (I2C address = 23/22h) [reset = B800h]
- 9.6.6 IIN_DPM Register (I2C address = 25/24h) [reset = 4100h]
- 9.6.7 ADCVBUS/PSYS Register (I2C address = 27/26h)
- 9.6.8 ADCIBAT Register (I2C address = 29/28h)
- 9.6.9 ADCIIN/CMPIN Register (I2C address = 2B/2Ah)
- 9.6.10 ADCVSYS/VBAT Register (I2C address = 2D/2Ch)
- 9.6.11 ChargeOption1 Register (I2C address = 31/30h) [reset = 3300h]
- 9.6.12 ChargeOption2 Register (I2C address = 33/32h) [reset = 00B7]
- 9.6.13 ChargeOption3 Register (I2C address = 35/34h) [reset = 0434h]
- 9.6.14 ProchotOption0 Register (I2C address = 37/36h) [reset = 4A81h(2S~4s) 4A09(1S)]
- 9.6.15 ProchotOption1 Register (I2C address = 39/38h) [reset = 41A0h]
- 9.6.16 ADCOption Register (I2C address = 3B/3Ah) [reset = 2000h]
- 9.6.17 ChargeOption4 Register (I2C address = 3D/3Ch) [reset = 0048h]
- 9.6.18 Vmin Active Protection Register (I2C address = 3F/3Eh) [reset = 006Ch(2s~4s)/0004h(1S)]
- 9.6.19 OTGVoltage Register (I2C address = 07/06h) [reset = 09C4h]
- 9.6.20 OTGCurrent Register (I2C address = 09/08h) [reset = 3C00h]
- 9.6.21 InputVoltage(VINDPM) Register (I2C address = 0B/0Ah) [reset =VBUS-1.28V]
- 9.6.22 VSYS_MIN Register (I2C address = 0D/0Ch) [reset value based on CELL_BATPRESZ pin setting]
- 9.6.23 IIN_HOST Register (I2C address = 0F/0Eh) [reset = 4100h]
- 9.6.24 ID Registers
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
10.2.3 Application Curves
| 2-cell without battery | ||
| 3-cell VBAT = 10 V |
| VBUS = 20 V, VSYS = 10 V, ISYS = 200 mA |
| VBUS = 5 V, VBAT = 10 V |
| VBUS = 12 V/3.25 A, 3-cell, VSYS = 9 V, Without battery |
| VBUS = 5 V/3.25 A, 3-cell, VSYS = 9 V, Without battery |
| VBUS = 5 V/3.25 A, VBAT = 7.5 V |
| VBAT = 10 V, VBUS 5 V to 20 V, IOTG = 500 mA |
| VBAT = 10 V, VBUS = 20 V |
| VBUS = 20 V | IIN_DPM = 2 A | ILIM2_VTH = 200% |
| TMAX = 20 ms | TOVLD = 10 ms | VSYS_MIN = 12.3 V |
| ISYS = 1 to 6 A | ICHG = 0 A |
| 2-cell without battery | ||
| VBUS 5 V to 20 V |
| VBUS = 20 V, VSYS = 10 V, ISYS = 2 A |
| VBUS = 12 V, VBAT = 12 V |
| VBUS = 9 V/3.25 A, 3-cell, VSYS = 9 V, Without battery |
| VBUS = 20 V/3.25 A, VBAT = 7.5 V |
| VBUS = 5 V |
| VBUS = 20 V, VOTG = 5 V, ISYS = 5 A,VBAT = 14.8 V |
| VBUS = 20 V | IIN_DPM = 2 A | ILIM2_VTH = 200% |
| TMAX = 20 ms | TOVLD = 10 ms | VBAT = 12.8 V |
| ISYS = 1 to 6 A | ICHG = 0 A |