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UCC3957M-3G4 Datasheet(PDF) 2 Page - Texas Instruments |
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UCC3957M-3G4 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 15 page UCC39571, UCC39572, UCC39573, UCC39574 SLUS236B – JANUARY 1999 – REVISED SEPTEMBER 2002 2 www.ti.com block diagram UDG–00129 1 3 2 CELL VOLTAGE SELECT OVERCURRENT CONTROLLER 4 6 5 7 8 REFERENCE VOLTAGE SELECT AND COMPARE REF STATE MACHINE CLOCK SQ R + AN4 VDD BATLO AN3 AN2 AN1 CLCNT WU VDD UV SLEEP 16 14 15 13 11 12 10 9 CDLY1 CHGEN AN4 CHG AVDD CDLY2 DVDD DCHG absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†‡ Supply voltage (VDD) 20 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply current 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output current 25 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage: (WU) 24 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (AN1, AN2, AN3) VAN4 – VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (CLCNT, CHGEN) 15 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range (BATLO) –0.3 V to 2.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating virtual junction temperature range, TJ –55 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature (soldering, 10 seconds) 300 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ‡ Unless otherwise indicated, voltages are reference to ground and currents are positive into and negative out of the specified terminals. Consult Packaging Information section of the Portable Products Databook (TI Literature No. SLUD001) for thermal limitations and considerations of packages. All voltages are referenced to the AN4 terminal. AVAILABLE OPTIONS T PACKAGED DEVICES† SSOP (M) TA NORMAL TO OVERCHARGE VOLTAGE (V) 4.20 4.25 4.30 4.35 –20 °C to 70°C UCC3957M–1 UCC3957M–2 UCC3957M–3 UCC3957M–4 † The M package is available taped and reeled. Add TR suffix to device type (e.g. UCC3957M–1TR) to order quantities of 2500 devices per reel. Not Recommended for New Designs |
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