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BQ24742 Datasheet(PDF) 6 Page - Texas Instruments |
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BQ24742 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 35 page  bq24741, bq24742 SLUS875B – MARCH 2009 – REVISED OCTOBER 2009 www.ti.com RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT SW –0.8 24 V PVCC, ACP, ACN, CSP, CSN, BAT 0 24 V REGN, LODRV 0 6.5 V VREF 3.3 V Voltage range VDAC 3.6 V VADJ, ACSET, ISET, ACDET, FSET, IADAPT, LPMOD, LPREF, CE, CELLS, 0 5.5 V EXTPWR, DPMDET, TRICKLE BTST, HIDRV with respect to AGND and PGND 0 30 V AGND, PGND –0.3 0.3 V Maximum difference voltage: ACP–ACN, CSP–CSN –0.3 0.3 V Junction temperature range –40 125 °C Storage temperature range –55 150 °C ELECTRICAL CHARACTERISTICS 9.0 V ≤ VPVCC ≤ 24 V, 0°C < TJ < +125°C, Fs=600 kHz, typical values are at TA = 25°C, with respect to AGND (unless otherwise noted) (1) (2) (3) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OPERATING CONDITIONS VPVCC_OP PVCC input voltage operating range 9 24 V CHARGE VOLTAGE REGULATION VBAT_REG_RNG BAT voltage regulation range 4-4.512 V per cell, times 2,3,4 cells 8 18.048 V VVDAC_OP VDAC reference voltage range 2.6 3.6 V VVADJ_OP VADJ voltage range 0 VDAC V 8 V, 8.4 V, 9.024 V –0.5 0.5 Charge voltage regulation accuracy 12 V, 12.6 V, 13.536 V –0.5 0.5 % 16 V, 16.8 V, 18.048 V –0.5 0.5 CHARGE CURRENT REGULATION (ENABLE CE & DISABLE TRICKLE) VIREG_CHG Charge current regulation differential VIREG_CHG = VCSP – VCSN 0 100 mV voltage range VISET_OP SRSET voltage range 0 VDAC V VIREG_CHG = 40 mV –3% 3% VIREG_CHG = 20 mV –5% 5% Charge current regulation accuracy VIREG_CHG = 5 mV –25% 25% VIREG_CHG = 3 mV (VBAT ≥ 4 V) –33% 33% VIREG_CHG = 3 mV (VBAT < 4 V) –50% 50% VBAT ≥ 4 V –1.0 1.0 Off-set Voltage of Amplifier mV VBAT < 4 V –1.5 1.5 TRICKLE CHARGE CURRENT REGULATION (ENABLE CE & TRICKLE) Charge Current Regulation Accuracy VIREG_CHG = 3 mV –33% 33% Off-set Voltage of Amplifier –1.0 1.0 mV (1) Verified by design (2) Deglitch time and delay are proportional to the period of oscillator, unless specified. (3) When CE=HIGH, the internal oscillator frequency is equal to external setting Fs; when CE=LOW, the internal oscillator frequency is fixed internal setting 700 kHz. 6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s) :bq24741 bq24742 |
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