DatasheetsPDF.com

BD3989FV Dataheets PDF



Part Number BD3989FV
Manufacturers Rohm
Logo Rohm
Description Positive and Negative Variable Linear Regulator
Datasheet BD3989FV DatasheetBD3989FV Datasheet (PDF)

STRUCTURE Silicon Monolithic Integrated Circuit TYPE Positive and Negative Variable Linear Regulator PRODUCT SERIES BD3989FV FEATURES 1. Built-in positive (REG1) and negative (REG2) Linear Regulator for CCDs/ Variable output/Low saturation voltage type. 2. Built-in Discharge circuit. Negative output voltage (REG2) turns off immediately, after STB turns off. ○ABSOLUTE MAXIMUM RATINGS (Ta=25℃) Parameter Symbol Limit Unit Positive Supply Voltage VCC +18 ※1 V Negative Supply Voltage.

  BD3989FV   BD3989FV



Document
STRUCTURE Silicon Monolithic Integrated Circuit TYPE Positive and Negative Variable Linear Regulator PRODUCT SERIES BD3989FV FEATURES 1. Built-in positive (REG1) and negative (REG2) Linear Regulator for CCDs/ Variable output/Low saturation voltage type. 2. Built-in Discharge circuit. Negative output voltage (REG2) turns off immediately, after STB turns off. ○ABSOLUTE MAXIMUM RATINGS (Ta=25℃) Parameter Symbol Limit Unit Positive Supply Voltage VCC +18 ※1 V Negative Supply Voltage VEE -18 ※1 V Power Dissipation Pd 380 ※2 mW Operating Temperature Range Topr -40~+85 ℃ Storage Temperature Range Tstg -55~+125 ℃ Maximum Junction Temperature Tjmax 125 ℃ ※1 Not to exceed Pd. ※2 Reduced by 3.8mW/℃ over Ta=25℃ ,during IC without heat sink operation. ○OPERATING CONDITIONS Parameter Symbol Min Max Unit Positive Supply Voltage VCC +15.0 +18.0 V Negative Supply Voltage VEE -14.0 -7.5 V REG1 Output Voltage Vo1 +14.0 +16.0 V REG2 Output Voltage Vo2 -8.5 -6.5 V Output Current 1 Io1 - 25 mA Output Current 2 Io2 - 50 mA ※ Vdropout(Reg1) × Io(Reg1) + Vdropout(Reg2) × Io(Reg2) not to exceed Pd=380mW. 1/4 REV. B 2/4 ○ELECTRICAL CHARACTERISTICS(Unless otherwise specified, Ta=25℃, VCC=16.5V, VEE=-10V, Set REG1=15V, Set REG2=-7.5V) Parameter Limits Symbol Unit MIN Typ MAX Conditions 【Bias current】 Bias Current (VCC) Bias Current (VEE) 【STB】 ICC - 500 850 μA Io1=0mA IEE - 200 300 μA Io2=0mA STB OFF Voltage STB ON Voltage STB OFF Bias Current (VEE) STB ON Input Current 【Discharge block】 STBOFF 0 - 0.6 V Io1,2=0mA STBON 1.6 - 3.5 V Io1,2=0mA IOFF 0.7 1.6 2.5 mA Io1,2=0mA Iin 10 30 60 μA VSTB=2V, Io1,2=0mA Discharge Current 【REG1】 Idis 1.5 3.5 6.0 mA CTL1 Voltage Dropout Voltage 1 Peak Output Current 1 Load Regulation 1 Vctl1 ΔVd1 Io1 Vload1 1.379 - 25 - 1.400 0.25 - 100 1.421 0.35 - - V Io1=10mA V Vcc=14.2V, Io1=25mA mA mV Io1=0~25mA Short – Circuit Output Current 1 Ishort1 - 50 - mA Vo1=0V Ripple Rejection 1 Temperature Coefficient of Output Voltage 1 ※ 【REG2】 R.R.1 Tcvo1 - 50 - dB f=120Hz, ein=1Vrms, Io1=2mA - ±0.02 - %/℃ Io1=1mA, Tj=0~125℃ CTL2 Voltage Vctl1 -1.269 -1.250 -1.231 V Io2=10mA Dropout Voltage2 ΔVd2 - 0.35 0.45 V VEE=-7.1V, Io2=50mA Peak Output Current2 Io2 50 - - mA Load Regulation2 Vload2 - 100 - mV Io2=0~50mA Short – Circuit Output Current 2 Ishort2 - 120 - mA Vo2=0V Ripple Rejection2 R.R.2 - 50 - dB f=120Hz, ein=1Vrms, Io2=2mA Temperature Coefficient of Output Voltage 2 ※ Tcvo2 - ±0.02 - %/℃ Io2=1mA, Tj=0~125℃ ◎ Discharge time t=(Reg2×Co)/Idis [s] (VEE=-10V) Co:Reg2 Output capacitor(μF) ※ Design Guarantee (Shipment inspection is not done on all products.) This product is not designed for protection against radio active rays. ○PHYSICAL DIMENSIONS・MARKING Part No. 3989 Lot No. SSOP-B8 (UNIT:mm) REV. B ○BLOCK DIAGRAM VCC 2 STB 6 BandGap TSD OCP Discharge Block VEE 4 ○PIN No.・PIN NAME VCC + 1 REG1 8 CTL1 7 GND Pin No. 1 2.


BD3988FV BD3989FV BD4154FV


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)