BQ24190_15 Datasheet, PDF (2/52 Pages) Texas Instruments – bq2419x I2C Controlled 4.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG

bq24190, bq24192, bq24192I
SLUSAW5B – JANUARY 2012 – REVISED DECEMBER 2014
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (Continued) ........................................ 3
6 Device Comparison Table..................................... 3
7 Pin Configuration and Functions ......................... 4
8 Specifications......................................................... 5
8.1 Absolute Maximum Ratings ...................................... 5
8.2 ESD Ratings ............................................................ 6
8.3 Recommended Operating Conditions....................... 6
8.4 Thermal Information .................................................. 6
8.5 Electrical Characteristics........................................... 6
8.6 Typical Characteristics .............................................. 9
9 Detailed Description ............................................ 12
9.1 Overview ................................................................. 12
9.2 Functional Block Diagram ....................................... 12
9.3 Feature Description................................................. 13
9.4 Device Functional Modes........................................ 27
9.5 Register Map........................................................... 28
10 Application and Implementation........................ 36
10.1 Application Information.......................................... 36
10.2 Typical Application ................................................ 36
11 Power Supply Recommendations ..................... 41
12 Layout................................................................... 41
12.1 Layout Guidelines ................................................. 41
12.2 Layout Example .................................................... 42
13 Device and Documentation Support ................. 43
13.1 Documentation Support ....................................... 43
13.2 Related Links ........................................................ 43
13.3 Trademarks ........................................................... 43
13.4 Electrostatic Discharge Caution ............................ 43
13.5 Glossary ................................................................ 43
14 Mechanical, Packaging, and Orderable
Information ........................................................... 44
4 Revision History
Changes from Revision A (October 2012) to Revision B
Page
• Aligned package description throughout datasheet................................................................................................................ 1
• Added ESD Ratings, Feature Description, Device Functional Modes, Application and Implementation, Power Supply
Recommendations, Layout, Device and Documentation Support, Mechanical, Packaging, Orderable Information. ........... 1
• Added Feature: Compatible with MaxLife Technology for Faster Charging When Used in Conjunction With bq27531 ....... 1
• Changed V_SLEEPZ, V_{BAT_DPL_HY}, V_BATGD , I_{CHG_20pct}, V_SHORT, I_{ADPT_DPM}, K_ILIM, V_{BTST_REFRESH} in Electrical Characteristics.......... 6
• Added –40°C to 85° to I_BAT Test Condition............................................................................................................................. 6
• Added REG00[6:3] = 0110 (4.36 V) or 1011 (4.76 V) to V_{INDPM_REG_ACC} Test Conditions...................................................... 8
• Added Typical input current of 1.5 A based on KLIM to I_{ADPT_DPM} Test Conditions ............................................................... 8
• Added a MIN value of 435 to K_ILIM.......................................................................................................................................... 8
• Deleted T_{Junction_REG} MIN and MAX ......................................................................................................................................... 8
• Added rising to V_HTF parameter ............................................................................................................................................. 8
• Deleted V_REGN, V_VBUS = 5 V, I_REGN = 20 mA MAX value ......................................................................................................... 9
• Changed Functional Block Diagram ..................................................................................................................................... 12
• Changed Charging Current in Table 4 ................................................................................................................................. 18
• Changed REG09[5:4] to REG08[5:4] in Charging Termination section ............................................................................... 21
• Added or when FORCE_20PCT (REG02[0]) bit is set, to Charging Safety Timer description ............................................ 22
• Added last paragraph to Charging Safety Timer description................................................................................................ 22
• Added twice to Host Mode and Default Mode description ................................................................................................... 27
• Changed REG05[5:4]=11 to REG05[5:4]=00 in Host Mode and Default Mode description................................................. 27
• Changed Charge Current Control Register REG02 Bit 0 description .................................................................................. 31
• Changed Charge Current Control Register REG02 Bit 0 note............................................................................................. 31
• Changed REG05 Bit 0 from JEITA ISET (0°C-10°C) to Reserved ...................................................................................... 32
• Changed REG07 Bit 4 from JEITA_VSET (45°C to 60°C) to Reserved .............................................................................. 33
• Changed BOOT to BTST in Figure 38 ................................................................................................................................. 37
• Changed BOOT to BTST in Figure 39 ................................................................................................................................. 37
• Changed bq24193 to bq24192 in Figure 42......................................................................................................................... 39
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