CXA3809M PDF Datasheet – AC-DC Controller

Part Number: CXA3809M

Function: AC-DC Controller

Package: SOP 24 Pin Type

Manufacturer: Sony




The CXA3809M has optimum configuration to realize various power supply circuits easily and compactly by including Power-factor correction, resonant controller and various protection function in one package. (Applications: Power supply circuit, etc.)


 Power-factor correction  Multiplierless critical conduction mode (CRM) control Supports W/W input Restart timer Maximum frequency limit (during overcurrent detection) Continuous overcurrent detection protection function Timer-latch over current protection Soft start function Adjustment minimum frequency limit Pulse over current load detection Out of resonance prevention function at start-up Adjacent 2-pin short protection Various protection functions including overvoltage and overcurrent AC off detection PFC-OK signal output  Resonant controller  Common Structure BiCMOS silicon monolithic IC Package 24-pin SOP Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. -1- E09504 Free Datasheet http:/// CXA3809M Absolute Maximum Ratings Item Maximum supply voltage VCC pin voltage Driver output pin voltage Power supply pin voltage for internal circuit Symbol VCC VCCIN VOUT VREF Rating 24.0 –0.3 to VCC + 0.3 –0.3 to VCC + 0.3 –0.3 to +7.0 Unit V V V V VCC AC_DETIN, AC_DETOUT, AC_VRMS, PFC_OK, MODE PFC_OUT, RM_OUTP, RM_OUTN VREF PFC_OVP, PFC_CS, PFC_VAO, PFC_TONMAX, PFC_VSENSE, RM_OFFADJ, RM_RT, RM_SS, RM_CS, RM_CSGND, RM_FMIN PFC_ZCD (See the thermal derating curve.) Remarks VREF pin voltage VREFIN –0.3 to +7.0 V ZCD current Allowable power dissipation Operating ambient temperature range Junction temperature Storage temperature *1 IZCD PD Topt Tjmax Tstg 7 *1 mA mW C C C –30 to +125 +150 –55 to +150 Allowable power dissipation reduction characteristics 1000 Allowable power dissipation [mW] 800 When mounted on a single layer board 600 When mounted on a four-layer board 400 237mW 150mW –16.8˚C –20 0 20 40 44.7˚C 60 80 100 125˚C 120 140 160 200 Operating ambient temperature Ta [˚C] Glass fabric base epoxy board, 76mm × 114mm, t = 1.6mm Recommended Operating Conditions Item Supply voltage (VCC system) Operating ambient temperature range Junction temperature Symbol VCC Topt Tj Rating 12.0 to 18.0 –25 to +85 –25 to +125 Unit V C C Remarks -2Free Datasheet http:/// CXA3809M Block Diagram PFC_OUT PGND 1 VCC VCC 20 RM_OUTP 24 19 AC_DETOUT 23 AC_DETOUT Band Gap Reference VBGR 1.3V 22 RM_OUTN VREF VREF 5V Enable UVLO 11.0V/9.6V 5.5V VREF_OVLO PFC Driv cnt V […]


CXA3809M Datasheet