ZHCSED8 November   2015

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Charge Pump Control
      2. 7.3.2 Pin Enable Controls
        1. 7.3.2.1 External Control of CHG and DSG Output Drivers
        2. 7.3.2.2 External Control of PCHG Output Driver
        3. 7.3.2.3 Pack Monitor Enable
    4. 7.4 Device Functional Modes
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended System Implementation
        1. 8.1.1.1 The bq76200 is a Slave Device
        2. 8.1.1.2 Flexible Control via AFE or via MCU
        3. 8.1.1.3 Scalable VDDCP Capacitor to Support Multiple FETs in Parallel
        4. 8.1.1.4 Pre-Charge and Pre-Discharge Support
        5. 8.1.1.5 Optional External Gate Resistor
        6. 8.1.1.6 Separate Charge and Discharge paths
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
      1. 11.1.1 相关文档 
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12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

6 Specifications

6.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Input voltage range, VIN BAT, PACK (both under charge pump disabled condition) –0.3 100 V
CHG_EN, DSG_EN, PCHG_EN, PMON_EN, CP_EN(2) –0.3 15 V
Output voltage range, VO CHG, DSG, PCHG, PACKDIV, VDDCP –0.3 100 V
TFUNC Functional Temperature –40 110 °C
Storage temperature, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The enable inputs need to be current limited with max current not exceeding 5 mA.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

Typical values stated where TA = 25°C and VBAT = 48.8 V, Min/Max values stated where TA = –40°C to 85°C and BAT = 8 V to 75 V (unless otherwise noted)
MIN NOM MAX UNIT
VBAT Battery cell input supply voltage range 8 75 V
VPACK Charger/Load voltage range 0 75 V
VIN Input voltage range CHG_EN, DSG_EN, PCHG_EN, PMON_EN, CP_EN 0 14 V
CVDDCP Capacitor Between VDDCP and BAT 470 nF
TOPR Operating free-range temperature –40 85 °C

6.4 Thermal Information

THERMAL METRIC(1) TSSOP (PW) UNIT
16 PINS
RθJA, High K Junction-to-ambient thermal resistance 106.8 °C/W
RθJC(top) Junction-to-case(top) thermal resistance 41.5 °C/W
RθJB Junction-to-board thermal resistance 51.8 °C/W
ψJT Junction-to-top characterization parameter 3.8 °C/W
ψJB Junction-to-board characterization parameter 51.3 °C/W
RθJC(bot) Junction-to-case(bottom) thermal resistance n/a °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

Typical values stated at TA = 25°C and V(BAT) = 48 V. MIN/MAX values stated with TA = –40°C to 85°C and V(BAT) = 8 to 75 V unless otherwise noted.
PARAMETER DESCRIPTION TEST CONDITION MIN TYP MAX UNIT
SUPPLY AND LEAKAGE CURRENT
I(BAT) NORMAL mode current(1) C(VDDCP) = 470 nF, V(BAT) = V(PACK),
CL = 10 nF
40 50 µA
Ishut Sum of current into BAT and PACK pin Shutdown Mode, PACK = 0 V, BAT = 8 V 6 9.5 µA
CHARGE PUMP
V(VDDCP) Charge pump voltage No Load, CP_EN = hi, V(VDDCP) – V(BAT) 9 14 V
tCPON Charge pump start up time from zero volt C(VDDCP) = 470 nF, 10% to 90% of V(VDDCP) 100 ms
INPUT ENABLE CONTROL SIGNALS
VIL Digital low input level for CHG_EN, DSG_EN, PCHG_EN, CP_EN, PMON_EN 0.6 V
VIH Digital high input level for CHG_EN, DSG_EN, PCHG_EN, CP_EN, PMON_EN 1.2 V
RPD Internal Pull down VIN = 5 V 0.6 1 4
CHARGE FET DRIVER
V(CHGFETON) CHG gate drive voltage (on) CL = 10 nF, CHG_EN = Hi,  V(BAT) = V(PACK), V(CHG) – V(BAT) 9 12 14 V
R(CHGFETON) CHG FET driver on resistance V(VDDCP) – V(BAT) = 12 V, CHG_EN = Hi, V(BAT) = V(PACK) 1.1
R(CHGFETOFF) CHG FET driver off resistance V(VDDCP) – V(BAT) = 12 V, CHG_EN = Lo, V(BAT) = V(PACK) 0.3
DISCHARGE FET DRIVER
V(DSGFETON) DSG gate drive voltage (on) CL = 10 nF, DSG_EN = Hi, V(BAT) = V(PACK), V(DSG) – V(PACK) 9 12 14 V
R(DSGFETON) DSG FET driver on resistance V(VDDCP) – V(BAT) = 12 V, DSG_EN = Hi, V(BAT) = V(PACK) 3.5
R(DSGFETOFF) DSG FET driver off resistance V(VDDCP) – V(BAT) = 12 V, DSG_EN = Lo, V(BAT) = V(PACK) 1
PRECHARGE FET DRIVER
V(PCHGFETON) PCHG gate drive voltage (on) V(PACK) > 17 V, V(BAT) < V(PACK), V(PACK) – V(PCHG) 5 12 14 V
PACK MONITOR (PACK_DIV)
R(PMONFET) On resistance of internal FET (R between PACK and PACKDIV) PMON_EN = hi 1.5 2.5 3.5
(1) NORMAL mode is defined as CHG_EN = Hi, DSG_EN = Hi, CP_EN = Hi, PCHG_EN = Lo, PMON_EN = Lo. Current value is averaged out over time.

6.6 Timing Requirements

Parameter Description TEST CONDITION MIN TYP MAX UNIT
tCHGFETON CHG on rise time + propagation delay CL = 10 nF, (20% of CHG_EN from Lo to Hi) to (80% of V(CHGFETON)), CP_EN = Hi, (CP is already on) 27 45 µs
tCHGFETOFF CHG off fall time + progation delay CL= 10 nF, (80% of CHG_EN from Hi to Lo) to (20% of V(CHGFETON)) , CHG_EN = Hi to Lo 7 20 µs
tPROP _CHG CHG EN to CHG output CL= 10 nF, CP_EN = Hi, (CP is already on), see timing diagram 0.5 µs
tDSGFETON DSG on rise time + propagation delay CL = 10 nF, (20% of DSG_EN from Lo to Hi) to (80% of V(DSGFETON)), CP_EN = Hi, (CP is already on) 24 50 µs
tDSGFETOFF DSG off fall time + propagation delay CL = 10 nF, (80% of DSG_EN from Hi to Lo) to (20% of V(DSGFETON)) 7 20 µs
tPROP_DSG DSG EN to DSG output propagation delay CL= 10 nF, CP_EN = Hi, (CP already on), see timing Diagram 0.5 µs
tPCHGOFF PCHG turn off time + propagation delay CL = 1 nF, (20% of PCHG_EN from Hi to Lo) to (80% of V(PCHGFETON)) 30 55 µs
tPCHGON PCHG turn on time + propagation delay CL = 1 nF, (80% of PCHG_EN from Lo to Hi) to (20% of V(PCHGFETON)) 34 55 µs
tPROP_PCHG PCH_EN to PCHG propagation delay CL = 1 nF 0.5 µs
tPROP_PMON PMON_EN and PACKDIV = PACK propagation delay 0.5 µs
bq76200 TimingDiagram.gif Figure 1. Timing Characteristics - ( CP assumed to be already On)

6.7 Typical Characteristics

bq76200 D001_SLUSC16.gif
Figure 2. Normal Mode Current Vs Battery
bq76200 D003_SLUSC16.gif
Figure 4. Input Pin Voltage for Internal Pull-Down Resistance (Rpd)
bq76200 D005_SLUSC16.gif
Figure 6. PCHG On Voltage vs Temperature
bq76200 D002_SLUSC16.gif
Figure 3. Shutdown Mode Current vs Battery
bq76200 D004_SLUSC16.gif
Figure 5. CHG/DSG FET On Voltage vs Temperature