SLVSA48A April   2010  – September 2015 TPS65200

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 Data Transmission Timing
    7. 6.7 Typical Characteristics
      1. 6.7.1 Switching Charger
      2. 6.7.2 OTG Boost
      3. 6.7.3 LDO
      4. 6.7.4 WLED Boost
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Global State Diagram
      2. 7.3.2 LED Driver Operation
        1. 7.3.2.1 Undervoltage Lockout
        2. 7.3.2.2 Shutdown
        3. 7.3.2.3 Soft-Start Circuit
        4. 7.3.2.4 Open LED Protection
        5. 7.3.2.5 Current Program
        6. 7.3.2.6 Brightness Dimming
        7. 7.3.2.7 Inductor Overcurrent Protection
      3. 7.3.3 HV LDO
      4. 7.3.4 Interrupt Pin
      5. 7.3.5 Current Shunt Monitor
    4. 7.4 Device Functional Modes
      1. 7.4.1 Charge Mode Operation
        1. 7.4.1.1  Input Current Limiting and D+/D- Detection
        2. 7.4.1.2  Bad Adaptor Detection/Rejection (CHBADI)
        3. 7.4.1.3  Input Current Limiting at Start-Up
        4. 7.4.1.4  Charge Profile
        5. 7.4.1.5  Precharge to Fast Charge Threshold (VSHORT)
        6. 7.4.1.6  PWM Controller in Charge Mode
        7. 7.4.1.7  Battery Charging Process
        8. 7.4.1.8  Thermal Regulation and Protection
        9. 7.4.1.9  Safety Timer in Charge and Boost Mode (CH32MI, BST32SI)
        10. 7.4.1.10 Input Voltage Protection in Charge Mode
          1. 7.4.1.10.1 Input Overvoltage Protection (VBUSOVPI)
          2. 7.4.1.10.2 Reverse Current Protection (CHRVPI)
          3. 7.4.1.10.3 Input Voltage Based Dynamic Power Management (CHDPMI)
        11. 7.4.1.11 Battery Protection in Charge Mode
          1. 7.4.1.11.1 Battery Charge Current Limiting
          2. 7.4.1.11.2 Output Overvoltage Protection (CHBATOVPI)
          3. 7.4.1.11.3 Battery Short Protection
        12. 7.4.1.12 Charge Status Output, STAT Pin
      2. 7.4.2 Boost Mode Operation
        1. 7.4.2.1 PWM Controller in Boost Mode
        2. 7.4.2.2 Boost Start Up
        3. 7.4.2.3 PFM Mode at Light Load
        4. 7.4.2.4 Safety Timer in Boost Mode (BST32SI)
        5. 7.4.2.5 Protection in Boost Mode
          1. 7.4.2.5.1 Output Overvoltage Protection (BSTBUSOVI)
          2. 7.4.2.5.2 Output Over-Load Protection (BSTOLI)
          3. 7.4.2.5.3 Battery Voltage Protection (BSTLOWVI, BSTBATOVI)
      3. 7.4.3 High Impedance Mode
    5. 7.5 Programming
      1. 7.5.1 I2C Bus Operation
    6. 7.6 Register Maps
      1. 7.6.1  Control Register (CONTROL)
      2. 7.6.2  Charger Config Register A (CONFIG_A)
      3. 7.6.3  Charger Config Register B (CONFIG_B)
      4. 7.6.4  Charger Config Register C (CONFIG_C)
      5. 7.6.5  Charger Config Register D (CONFIG_D)
      6. 7.6.6  WLED Control Register (WLED)
      7. 7.6.7  Status Register A (STATUS_A)
      8. 7.6.8  Status Register B (STATUS_B)
      9. 7.6.9  Interrupt Register 1 (INT1)
      10. 7.6.10 Interrupt Register 2 (INT2)
      11. 7.6.11 Interrupt Register 3 (INT3)
      12. 7.6.12 Interrupt Mask Register 1 (MASK1)
      13. 7.6.13 Interrupt Mask Register 2 (MASK2)
      14. 7.6.14 Interrupt Mask Register 3 (MASK3)
      15. 7.6.15 Chip ID Register (CHIPID)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

8.1 Application Information

The TPS65200 device is designed to serve as a Li+ battery charger with an additional WLED driver and current shunt monitor. A typical application design for this usage will be described in Typical Application.

8.2 Typical Application

TPS65200 sample_schem_lvsa48.gif Figure 51. Typical Application Schematic

8.2.1 Design Requirements

The key elements to identify for the design are the value of RSET, RSHRT, and RSNS as well as the desired LED brightness. All other values should reflect those required in Pin Configuration and Functions or in Functional Block Diagram.

8.2.2 Detailed Design Procedure

To determine the value for RSET, simply take the desired ILED and divide it by the FB voltage. The FB voltage is 200 mV by default, but can be changed by the VFB[4:0] bits.

To determine the value for RSHRT, the desired pre-charge to fast-charge voltage threshold must be known. From there, divide the voltage by two to account for an internal divider and then by the reference current for VSHRT of 10 uA to determine the resistance value.

To determine the value for RSNS, determine the desired output voltage for the current being monitored. Divide this voltage by the gain, 25 V/V, and the output current to determine the sense resistor value.

Finally, the LED brightness is a function of either changing the feedback voltage through I2C or applying a PWM signal to the CTRL pin.[Current Figure 43 WLED Dimming Linearity] gives some estimate as to the VFB level as a function of the duty cycle of the input PWM. This should be fine-tuned for the particular LEDs being used.

Table 2. Recommended External Components(1)

PART NO. VALUE SIZE MANUFACTURER
CHARGER INDUCTOR
NR3012T1R0N 1 µH 3 × 3 × 1.2 Taiyo Yuden
CPL2512T1R0M 1 µH 2.5 × 1.5 × 1.2 TDK
MDT2520CN 1 µH TOKO
WLED BOOST INDUCTOR
ELL-VGG100M 10 µH 3 × 3 × 1.5 Panasonic
VLF4010ST-100MR80 10 µH 4.3 × 4 × 1 TDK
1098AS-100M 10 µH 3 × 3.2 × 1.2 TOKO
WLED BOOST SCHOTTKY DIODE
MBR0540 SOD-123 ON-SEMI
ZHCS400 SOD-323 ZETEX
(1) Over operating free-air temperature range (unless otherwise noted).

8.2.3 Application Curves

TPS65200 fig1_lvsa48.gif
VBUS = 5.5 V VBAT = 3.3 V IIN_limit = 975 mA
ICHARGE = 950 mA
Figure 52. I2C Controlled Start-Up
TPS65200 fig5_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V VBAT = 3.2 V
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 54. Transient Response
TPS65200 fig7_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V VBAT = 4 V
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 56. Transient Response
TPS65200 fig9_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V No Battery
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 58. Transient Response
TPS65200 fig2_lvsa48.gif
VBUS = 5.5 V VBAT = 3.3 V IIN - limit = 975 mA
ICHARGE = 950 mA
Figure 53. I2C Controlled Start-Up
TPS65200 fig6_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V VBAT = 3.2 V
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 55. Transient Response
TPS65200 fig8_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V VBAT = 4 V
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 57. Transient Response
TPS65200 fig10_lvsa48.gif
0-A - 1-A Transient on VSYS VBUS = 5.5 V No Battery
VOREG = 4 V ICHARGE = 950 mA IIN_limit = 975 mA
Figure 59. Transient Response