BQ2057CSN BENCHMARQ, BQ2057CSN Datasheet
BQ2057CSN
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BQ2057CSN Summary of contents
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... Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. AutoComp is a trademark of Texas Instruments. DESCRIPTION The BENCHMARQ Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are designed for cost- sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, ...
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... Note the difference in pinout for this package. 2 AVAILABLE OPTIONS PACKAGE SOIC VOLTAGE (SN) 4.1 V Not available bq2057TS 4.2 V bq2057CSN bq2057CTS 8.2 V Not available bq2057TTS 8.4 V bq2057WSN bq2057WTS www.ti.com MSOP † TSSOP (TS) (DGK) bq2057DGK ...
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Internal Reference BAT COMP G (comp TS2 Trip _ + TS1 Trip _ 0 High/Low SNS Set + SNS V CC −V (SNS −V (SNS) VCC V CC ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 TERMINAL NO. I/O I/O NAME SOIC (SN) and MSOP TSSOP (TS) (DGK) BAT COMP SNS STAT ...
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Supply voltage (V with respect to GND) CC Input voltage, SNS, BAT, TS, COMP (all with respect to GND) Sink current (STAT pin) not to exceed P Source current (STAT ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (continued) PARAMETER CURRENT REGULATION bq2057 and bq2057C, High-side current sensing configuration bq2057T and bq2057W, High-side current sensing configuration Current regulation Current ...
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Q1 R SNS 0.2 Ω FZT788B DC kΩ C2 0.1 µF GND Figure 1. Low Dropout Single- or Two-Cell Li-Ion/Li-Pol Charger functional description The bq2057 is an advanced linear charge controller for single or two-cell Li-Ion or Li-Pol ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 POR V CC > V (BAT ) No Checked at All Times Yes TS Pin No in TS1 to TS2 Range Yes V (BAT) < V (min) No Regulate Current or Voltage ...
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Preconditioning Phase Regulation Voltage Regulation Current Minimum Charge Voltage Preconditioning and Taper Detect qualification and precharge When power is applied, the bq2057 starts a charge-cycle if a battery is already present or when a battery is inserted. Charge qualification is ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 R SNS D1 0.2 Ω DC+ C1 0.1 µF GND Figure 4. 0.5-A Charger Using P-Channel MOSFET current regulation phase The bq2057 regulates current while the battery-pack voltage is less than the ...
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DC+ R SNS bq2057 SNS COMP BAT CC VCC VSS TS STAT DC− Figure 5. High-Side Current Sensing voltage regulation phase The voltage regulation feedback is through the BAT pin. This input is tied directly to the positive side of ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 DC+ R SNS bq2057 SNS COMP BAT CC VCC VSS TS STAT DC− Figure 7. Optional Voltage Divider for Nonstandard Regulation Voltage, (High-Side Current Sensing) charge termination and recharge The bq2057 monitors ...
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For PTC Thermistors – Where R is the cold temperature resistance and R (TC) ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 charge inhibit function The TS pin can be used as charge-inhibit input. The user can inhibit charge by connecting the TS pin to VCC or VSS (or any level outside the V ...
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The bq2057 is designed to work with both PNP transistor and P-channel MOSFET. The device should be chosen to handle the required power dissipation, given the circuit parameters, PCB layout and heat sink configuration. The following ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 selecting an external pass-transistor (continued) P-channel MOSFET: Selection steps for a P-channel MOSFET: Example: V (bq2057C the input voltage to the charger and Determine the maximum power ...
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In most applications, all that is needed is a high-frequency decoupling capacitor. A 0.1 µF ceramic, placed in proximity to VCC and VSS pins, works well. The bq2057 works with both regulated and unregulated external dc supplies. ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 automatic charge-rate compensation (continued) AutoComp setup requires the following information: D Total impedance of battery pack (Z D Maximum charging current (I The voltage drop across the internal impedance of battery pack, ...
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The following example illustrates these calculations: Assume Z = 100 mΩ, I (PACK) (REG (Z) (PACK) (REG) + 0.1 V 0.5 ( ( (COMP) ...
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SLUS025F − MAY 2001 − REVISED JULY 2002 DGK (R-PDSO-G8) 0, 3,05 2,95 0,15 1,07 MAX 0,05 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body ...
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Narrow SOIC (SN) 8−Pin TS: TSSOP 8−Pin Notes: 1. Controlling dimension: millimeters. Inches shown for reference only. 2 ’D’ and ’E’ do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0,15 mm per side Each ...
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... PACKAGING INFORMATION (1) Orderable Device Status BQ2057CDGK ACTIVE BQ2057CDGKG4 ACTIVE BQ2057CDGKR ACTIVE BQ2057CDGKRG4 ACTIVE BQ2057CSN ACTIVE BQ2057CSNG4 ACTIVE BQ2057CSNTR ACTIVE BQ2057CSNTRG4 ACTIVE BQ2057CTS ACTIVE BQ2057CTSG4 ACTIVE BQ2057CTSTR ACTIVE BQ2057CTSTRG4 ACTIVE BQ2057DGK ACTIVE BQ2057DGKG4 ACTIVE BQ2057DGKR ACTIVE BQ2057DGKRG4 ACTIVE BQ2057PDGK ACTIVE BQ2057PDGKG4 ...
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Orderable Device Status BQ2057TSN ACTIVE BQ2057TSNTRG4 ACTIVE BQ2057TSTRG4 ACTIVE BQ2057TTS ACTIVE BQ2057TTSG4 ACTIVE BQ2057TTSTR ACTIVE BQ2057TTSTRG4 ACTIVE BQ2057WSN ACTIVE BQ2057WSNG4 ACTIVE BQ2057WSNTR ACTIVE BQ2057WSNTRG4 ACTIVE BQ2057WTS ACTIVE BQ2057WTSG4 ACTIVE BQ2057WTSTR ACTIVE BQ2057WTSTRG4 ACTIVE (1) The marketing status values ...
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TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other ...
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TAPE AND REEL INFORMATION PACKAGE MATERIALS INFORMATION Pack Materials-Page 1 21-Jul-2007 ...
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... BQ2057DGKR DGK 8 BQ2057PDGKR DGK 8 BQ2057TTSTR PW 8 BQ2057WSNTR D 8 BQ2057WSNTRG4 D 8 BQ2057WTSTR PW 8 TAPE AND REEL BOX INFORMATION Device Package BQ2057CDGKR DGK BQ2057CSNTR D BQ2057CTSTR PW BQ2057DGKR DGK BQ2057PDGKR DGK BQ2057TTSTR PW BQ2057WSNTR D BQ2057WSNTRG4 D BQ2057WTSTR PW PACKAGE MATERIALS INFORMATION Site Reel Reel A0 (mm) Diameter Width (mm) ...
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PACKAGE MATERIALS INFORMATION Pack Materials-Page 3 21-Jul-2007 ...
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PW (R-PDSO-G**) 14 PINS SHOWN 0, 0,15 1,20 MAX 0,05 PINS ** DIM A MAX A MIN NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body ...
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Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...