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BQ24123RHLTG4 Datasheet(PDF) 8 Page - Texas Instruments |
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BQ24123RHLTG4 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 39 page bq24120, bq24123, bq24125 SLUS688H – MARCH 2006 – REVISED NOVEMBER 2015 www.ti.com Electrical Characteristics (continued) TJ = 0°C to 125°C and recommended supply voltage range (unless otherwise stated) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT PWM 7 V ≤ VCC ≤ VCC(max) 400 Internal P-channel MOSFET on-resistance 4.5 V ≤ VCC ≤ 7 V 500 m Ω 7 V ≤ VCC ≤ VCC(max) 130 Internal N-channel MOSFET on-resistance 4.5 V ≤ VCC ≤ 7 V 150 fOSC Oscillator frequency 1.1 MHz Frequency accuracy –9% 9% DMAX Maximum duty cycle 100% DMIN Minimum duty cycle 0% tTOD Switching delay time (dead time) 20 ns tsyncmin Minimum synchronous FET on time 60 ns Synchronous FET minimum current-off 50 400 mA threshold (3) BATTERY DETECTION Battery detection current during time-out IDETECT VI(BAT) < VOREG – VRCH 2 mA fault IDISCHRG1 Discharge current VSHORT < VI(BAT) < VOREG – VRCH 400 μA tDISCHRG1 Discharge time VSHORT < VI(BAT) < VOREG – VRCH 1 s IWAKE Wake current VSHORT < VI(BAT) < VOREG – VRCH 2 mA tWAKE Wake time VSHORT < VI(BAT) < VOREG – VRCH 0.5 s Begins after termination detected, IDISCHRG2 Termination discharge current 400 μA VI(BAT) ≤ VOREG tDISCHRG2 Termination time 262 ms OUTPUT CAPACITOR Required output ceramic capacitor range COUT from SNS to PGND, between inductor and 4.7 10 47 μF RSNS Required SNS capacitor (ceramic) at SNS CSNS 0.1 μF pin PROTECTION Threshold over VOREG to turn off P-channel VOVP OVP threshold voltage MOSFET, STAT1, and STAT2 during charge 110 117 121 %VO(REG) or termination states ILIMIT Cycle-by-cycle current limit 2.6 3.6 4.5 A VSHORT Short-circuit voltage threshold, BAT VI(BAT) falling 1.95 2 2.05 V/cell ISHORT Short-circuit current VI(BAT) ≤ VSHORT 35 65 mA TSHTDWN Thermal trip 165 °C Thermal hysteresis 10 (3) N-channel always turns on for approximately 60 ns and then turns off if current is too low. 7.6 Dissipation Ratings TA < 40°C DERATING FACTOR PACKAGE ΘJA ΘJC POWER RATING ABOVE TA = 40°C RHL (1) 46.87°C/W 2.15°C/W 1.81 W 0.021 W/°C (1) This data is based on using the JEDEC High-K board, and the exposed die pad is connected to a copper pad on the board. This is connected to the ground plane by a 2x3 via matrix. 8 Submit Documentation Feedback Copyright © 2006–2015, Texas Instruments Incorporated Product Folder Links: bq24120 bq24123 bq24125 |
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