ZHCSGD7A May   2017  – May 2018

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      703A I2C
  4. 4 修订历史记录
  5. 5 说明 （续）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power-Up from Battery Without DC Source
      2. 8.3.2 Power-Up From DC Source
        1. 8.3.2.1 CHRG_OK Indicator
        2. 8.3.2.2 Input Voltage and Current Limit Setup
        3. 8.3.2.3 Battery Cell Configuration
        4. 8.3.2.4 Device Hi-Z State
      3. 8.3.3 USB On-The-Go (OTG)
      4. 8.3.4 Converter Operation
        1. 8.3.4.1 Inductor Setting through IADPT Pin
        2. 8.3.4.2 Continuous Conduction Mode (CCM)
        3. 8.3.4.3 Pulse Frequency Modulation (PFM)
      5. 8.3.5 Current and Power Monitor
        1. 8.3.5.1 High-Accuracy Current Sense Amplifier (IADPT and IBAT)
        2. 8.3.5.2 High-Accuracy Power Sense Amplifier (PSYS)
      6. 8.3.6 Input Source Dynamic Power Manage
      7. 8.3.7 Two-Level Adapter Current Limit (Peak Power Mode)
      8. 8.3.8 Processor Hot Indication
        1. 8.3.8.1 PROCHOT During Low Power Mode
        2. 8.3.8.2 PROCHOT Status
      9. 8.3.9 Device Protection
        1. 8.3.9.1 Watchdog Timer
        2. 8.3.9.2 Input Overvoltage Protection (ACOV)
        3. 8.3.9.3 Input Overcurrent Protection (ACOC)
        4. 8.3.9.4 System Overvoltage Protection (SYSOVP)
        5. 8.3.9.5 Battery Overvoltage Protection (BATOVP)
        6. 8.3.9.6 Battery Short
        7. 8.3.9.7 Thermal Shutdown (TSHUT)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Forward Mode
        1. 8.4.1.1 System Voltage Regulation with Narrow VDC Architecture
        2. 8.4.1.2 Battery Charging
      2. 8.4.2 USB On-The-Go
    5. 8.5 Programming
      1. 8.5.1 SMBus Interface
        1. 8.5.1.1 SMBus Write-Word and Read-Word Protocols
        2. 8.5.1.2 Timing Diagrams
    6. 8.6 Register Map
      1. 8.6.1  Setting Charge and PROCHOT Options
        1. 8.6.1.1 ChargeOption0 Register (SMBus address = 12h) [reset = E20Eh]
          1. Table 7. ChargeOption0 Register (SMBus address = 12h) Field Descriptions
          2. Table 8. ChargeOption0 Register (SMBus address = 12h) Field Descriptions
        2. 8.6.1.2 ChargeOption1 Register (SMBus address = 30h) [reset = 211h]
          1. Table 9.  ChargeOption1 Register (SMBus address = 30h) Field Descriptions
          2. Table 10. ChargeOption1 Register (SMBus address = 30h) Field Descriptions
        3. 8.6.1.3 ChargeOption2 Register (SMBus address = 31h) [reset = 2B7]
          1. Table 11. ChargeOption2 Register (SMBus address = 31h) Field Descriptions
          2. Table 12. ChargeOption2 Register (SMBus address = 31h) Field Descriptions
        4. 8.6.1.4 ChargeOption3 Register (SMBus address = 32h) [reset = 0h]
          1. Table 13. ChargeOption3 Register (SMBus address = 32h) Field Descriptions
          2. Table 14. ChargeOption3 Register (SMBus address = 32h) Field Descriptions
        5. 8.6.1.5 ProchotOption0 Register (SMBus address = 33h) [reset = 04A54h]
          1. Table 15. ProchotOption0 Register (SMBus address = 33h) Field Descriptions
          2. Table 16. ProchotOption0 Register (SMBus address = 33h) Field Descriptions
        6. 8.6.1.6 ProchotOption1 Register (SMBus address = 34h) [reset = 8120h]
          1. Table 17. ProchotOption1 Register (SMBus address = 34h) Field Descriptions
          2. Table 18. ProchotOption1 Register (SMBus address = 34h) Field Descriptions
        7. 8.6.1.7 ADCOption Register (SMBus address = 35h) [reset = 2000h]
          1. Table 19. ADCOption Register (SMBus address = 35h) Field Descriptions
          2. Table 20. ADCOption Register (SMBus address = 35h) Field Descriptions
      2. 8.6.2  Charge and PROCHOT Status
        1. 8.6.2.1 ChargerStatus Register (SMBus address = 20h) [reset = 0000h]
          1. Table 21. ChargerStatus Register (SMBus address = 20h) Field Descriptions
          2. Table 22. ChargerStatus Register (SMBus address = 20h) Field Descriptions
        2. 8.6.2.2 ProchotStatus Register (SMBus address = 21h) [reset = 0h]
          1. Table 23. ProchotStatus Register (SMBus address = 21h) Field Descriptions
          2. Table 24. ProchotStatus Register (SMBus address = 21h) Field Descriptions
      3. 8.6.3  ChargeCurrent Register (SMBus address = 14h) [reset = 0h]
        1. Table 25. Charge Current Register (14h) With 10-mΩ Sense Resistor (SMBus address = 14h) Field Descriptions
        2. Table 26. Charge Current Register (14h) With 10-mΩ Sense Resistor (SMBus address = 14h) Field Descriptions
        3. 8.6.3.1   Battery Pre-Charge Current Clamp
      4. 8.6.4  MaxChargeVoltage Register (SMBus address = 15h) [reset value based on CELL_BATPRESZ pin setting]
        1. Table 27. MaxChargeVoltage Register (SMBus address = 15h) Field Descriptions
        2. Table 28. MaxChargeVoltage Register (SMBus address = 15h) Field Descriptions
      5. 8.6.5  MinSystemVoltage Register (SMBus address = 3Eh) [reset value based on CELL_BATPRESZ pin setting]
        1. Table 29. MinSystemVoltage Register (SMBus address = 3Eh) Field Descriptions
        2. Table 30. MinSystemVoltage Register (SMBus address = 3Eh) Field Descriptions
        3. 8.6.5.1   System Voltage Regulation
      6. 8.6.6  Input Current and Input Voltage Registers for Dynamic Power Management
        1. 8.6.6.1 Input Current Registers
          1. 8.6.6.1.1 IIN_HOST Register With 10-mΩ Sense Resistor (SMBus address = 3Fh) [reset = 4000h]
            1. Table 31. IIN_HOST Register With 10-mΩ Sense Resistor (SMBus address = 3Fh) Field Descriptions
            2. Table 32. IIN_HOST Register With 10-mΩ Sense Resistor (SMBus address = 3Fh) Field Descriptions
          2. 8.6.6.1.2 IIN_DPM Register With 10-mΩ Sense Resistor (SMBus address = 022h) [reset = 0h]
            1. Table 33. IIN_DPM Register With 10-mΩ Sense Resistor (SMBus address = 022h) Field Descriptions
            2. Table 34. IIN_DPM Register With 10-mΩ Sense Resistor (SMBus address = 022h) Field Descriptions
          3. 8.6.6.1.3 InputVoltage Register (SMBus address = 3Dh) [reset = VBUS-1.28V]
            1. Table 35. InputVoltage Register (SMBus address = 3Dh) Field Descriptions
            2. Table 36. InputVoltage Register (SMBus address = 3Dh) Field Descriptions
      7. 8.6.7  OTGVoltage Register (SMBus address = 3Bh) [reset = 0h]
        1. Table 37. OTGVoltage Register (SMBus address = 3Bh) Field Descriptions
        2. Table 38. OTGVoltage Register (SMBus address = 3Bh) Field Descriptions
      8. 8.6.8  OTGCurrent Register (SMBus address = 3Ch) [reset = 0h]
        1. Table 39. OTGCurrent Register (SMBus address = 3Ch) Field Descriptions
        2. Table 40. OTGCurrent Register (SMBus address = 3Ch) Field Descriptions
      9. 8.6.9  ADCVBUS/PSYS Register (SMBus address = 23h)
        1. Table 41. ADCVBUS/PSYS Register Field Descriptions
      10. 8.6.10 ADCIBAT Register (SMBus address = 24h)
        1. Table 42. ADCIBAT Register Field Descriptions
      11. 8.6.11 ADCIINCMPIN Register (SMBus address = 25h)
        1. Table 43. ADCIINCMPIN Register Field Descriptions
      12. 8.6.12 ADCVSYSVBAT Register (SMBus address = 26h)
        1. Table 44. ADCVSYSVBAT Register Field Descriptions
      13. 8.6.13 ID Registers
        1. 8.6.13.1 ManufactureID Register (SMBus address = FEh) [reset = 0040h]
          1. Table 45. ManufactureID Register Field Descriptions
        2. 8.6.13.2 Device ID (DeviceAddress) Register (SMBus address = FFh) [reset = 0h]
          1. Table 46. Device ID (DeviceAddress) Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 ACP-ACN Input Filter
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Input Capacitor
        4. 9.2.2.4 Output Capacitor
        5. 9.2.2.5 Power MOSFETs Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
      1. 11.2.1 Layout Consideration of Current Path
      2. 11.2.2 Layout Consideration of Short Circuit Protection
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 第三方产品免责声明
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 术语表
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.6.1.1 ChargeOption0 Register (SMBus address = 12h) [reset = E20Eh]

Figure 17. ChargeOption0 Register (SMBus address = 12h) [reset = E20Eh]
15 14 13 12 11 10 9 8
EN_LWPWR WDTMR_ADJ IDPM_AUTO_
DISABLE 		OTG_ON_
CHRGOK 		EN_OOA PWM_FREQ Reserved
R/W R/W R/W R/W R/W R/W R/W
7 6 5 4 3 2 1 0
Reserved EN_LEARN IADPT_GAIN IBAT_GAIN EN_LDO EN_IDPM CHRG_INHIBIT
R/W R/W R/W R/W R/W R/W R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 7. ChargeOption0 Register (SMBus address = 12h) Field Descriptions

SMBus
BIT 		FIELD TYPE RESET DESCRIPTION
15 EN_LWPWR R/W 1b

Low Power Mode Enable

0b: Disable Low Power Mode. Device in performance mode with battery only. The PROCHOT, current/power monitor buffer and comparator follow register setting.

1b: Enable Low Power Mode. Device in low power mode with battery only for lowest quiescent current. PROCHOT, discharge current monitor buffer, power monitor buffer and independent comparator are disabled. ADC is not available in Low Power Mode. Independent comparator can be enabled by setting either REG0X30()[14] or [13] to 1. <default at POR>
14-13 WDTMR_ADJ R/W 11b

WATCHDOG Timer Adjust

Set maximum delay between consecutive SMBus write of charge voltage or charge current command.

If device does not receive a write on the REG0x15() or the REG0x14() within the watchdog time period, the charger will be suspended by setting the REG0x14() to 0 mA.

After expiration, the timer will resume upon the write of REG0x14(), REG0x15() or REG0x12[14:13]. The charger will resume if the values are valid.

00b: Disable Watchdog Timer

01b: Enabled, 5 sec

10b: Enabled, 88 sec

11b: Enable Watchdog Timer, 175 sec <default at POR>
12 IDPM_AUTO_
DISABLE		 R/W 0b

IDPM Auto Disable

When CELL_BATPRESZ pin is LOW, the charger automatically disables the IDPM function by setting EN_IDPM (REG0x12[1]) to 0. The host can enable IDPM function later by writing EN_IDPM bit (REG0x12[1]) to 1.

0b: Disable this function. IDPM is not disabled when CELL_BATPRESZ goes LOW. <default at POR>

1b: Enable this function. IDPM is disabled when CELL_BATPRESZ goes LOW.

11 OTG_ON_
CHRGOK		 R/W 0b

Add OTG to CHRG_OK

Drive CHRG_OK to HIGH when the device is in OTG mode.

0b: Disable <default at POR>

1b: Enable
10 EN_OOA R/W 0b

Out-of-Audio Enable

0b: No limit of PFM burst frequency <default at POR>

1b: Set minimum PFM burst frequency to above 25 kHz to avoid audio noise

9 PWM_FREQ R/W 1b

Switching Frequency

Two converter switching frequencies. One for small inductor and the other for big inductor.

Recommend 800 kHz with 2.2 µH or 3.3 µH, and 1.2 MHz with 1 µH or 1.5 µH.

0b: 1200 kHz

1b: 800 kHz <default at POR>

8 Reserved R/W 0b Reserved

Table 8. ChargeOption0 Register (SMBus address = 12h) Field Descriptions

SMBus
BIT 		FIELD TYPE RESET DESCRIPTION
7-6 Reserved R/W 00b Reserved
5 EN_LEARN R/W 0b

LEARN function allows the battery to discharge while the adapter is present. It calibrates the battery gas gauge over a complete discharge/charge cycle. When the battery voltage is below battery depletion threshold, the system switches back to adapter input by the host. When CELL_BATPRESZ pin is LOW, the device exits LEARN mode and this bit is set back to 0.

0b: Disable LEARN Mode <default at POR>

1b: Enable LEARN Mode
4 IADPT_GAIN R/W 0b

IADPT Amplifier Ratio

The ratio of voltage on IADPT and voltage across ACP and ACN.

0b: 20× <default at POR>

1b: 40×

3 IBAT_GAIN R/W 1b

IBAT Amplifier Ratio

The ratio of voltage on IBAT and voltage across SRP and SRN

0b: 8×

1b: 16× <default at POR>
2 EN_LDO R/W 1b

LDO Mode Enable

When battery voltage is below minimum system voltage (REG0x3E()), the charger is in pre-charge with LDO mode enabled.

0b: Disable LDO mode, BATFET fully ON. Precharge current is set by battery pack internal resistor. The system is regulated by the MaxChargeVoltage register.

1b: Enable LDO mode, Precharge current is set by the ChargeCurrent register and clamped below 384 mA (2 cell – 4 cell) or 2A (1 cell). The system is regulated by the MinSystemVoltage register. <default at POR>
1 EN_IDPM R/W 1b

IDPM Enable

Host writes this bit to enable IDPM regulation loop. When the IDPM is disabled by the charger (refer to IDPM_AUTO_DISABLE), this bit goes LOW.

0b: IDPM disabled

1b: IDPM enabled <default at POR>
0 CHRG_INHIBIT R/W 0b

Charge Inhibit

When this bit is 0, battery charging will start with valid values in the MaxChargeVoltage register and the ChargeCurrent register.

0b: Enable Charge <default at POR>

1b: Inhibit Charge