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BQ24159YFFT Datasheet(PDF) 4 Page - Texas Instruments |
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BQ24159YFFT Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 52 page  Not Recommended for New Designs bq24153A, bq24156A, bq24159 4 bq24153A, bq24156A bq24158, bq24159 SLUSAB0D – OCTOBER 2010 – REVISED APRIL 2016 www.ti.com Product Folder Links: bq24153A bq24156A bq24158 bq24159 Submit Documentation Feedback Copyright © 2010–2016, Texas Instruments Incorporated 5 Description (Continued) The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on battery voltage and user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, The IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I2C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to about 125°C. To support USB OTG device, bq24153A/8 can provide VBUS (5.05 V) by boosting the battery voltage. The IC is available in 20-pin WCSP package. (1) See Application Section for more explanation and calculations on using different sense resistors. 6 Device Comparisons PART NUMBER bq24153A bq24156A bq24158 bq24159 VOVP (V) 6.5 9.8 6.5 9.8 D4 Pin Definition OTG SLRST OTG SLRST ICHARGE(MAX) at POR in 15-minute mode with R(SNS) = 68 mΩ (55 mΩ) and OTG=High on bq24153A/8 (mA) 325 (402) 325 (N/A) 325 (402) 325 (N/A) ICHARGE(MAX) in HOST mode with R(SNS) = 68 mΩ (55 mΩ) and Safety Limit Register increased from default (A) (1) 1.25 (1.55A) 1.55 (N/A) 1.25 (1.55A) 1.55(N/A) 1.55 N/A 1.55 N/A Output regulation voltage at POR (V) 3.54 3.54 3.54 3.54 Boost Function Yes No Yes No Input Current Limit in 15Min Mode 100mA (OTG=LOW); 500mA (OTG=High) 500mA 100mA (OTG=LOW); 500mA (OTG=High) 500mA Battery Detection at Power Up Yes Yes No No I2C Address 6BH 6AH 6AH 6AH PN1 (bit4 of 03H) 1 0 1 0 PN0 (bit3 of 03H) 0 0 0 0 Safety Timer and WD Timer Enabled Enabled Enabled Enabled |
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