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- 1 - e09x14 sony reserves the right to change products and specifications without prior notice. this information does not convey any licens e by any implication or otherwise under any patents or other right. application circuits shown, if any, are typical examples illu strating the operation of the devices. sony cannot as sume responsibility for any problems aris ing out of the use of these circuits. CXA3822M ac-dc power supply se condary controller ic description the CXA3822M is a secondary controller ic used fo r ac-dc power supply series resonance converter. (applications: power supply circuits) features < 5v, 12v control block > ? 5v/12v voltage control circuit ? otp (detection of abnormal temperature) function ? lvp/ovp (detection of abnormal voltage) ? mode transition timer function ? 16-pin sop package ? tsd protection function ? uvlo function structure cmos silicon monolithic ic free datasheet http:///
CXA3822M - 2 - absolute maximum ratings *1 allowable power dissipation reduction characteristics recommended operating conditions item symbol rating unit remarks maximum supply voltage1 vcc_12v 24 v vin5, vin12 maximum supply voltage2 vdd5 7.5 v vdd5 12v pin voltage vccin ?0.3 to +24 v ampo12, ampin12, ampo5, ampin5 vdd pin voltage vddin ?0.3 to +7.5 v test, temp, xacdc_stby, xpfcok, xacdet, mainon, latch5, acin_det allowable power dissipation pd *1 mw (see the thermal derating curve.) operating ambient temperature range topt ?30 to +125 ? c? junction temperature tjmax +150 ? c? storage temperature tstg ?55 to +150 ? c? 1000 200 400 600 800 0 ?20 20 40 80 60 100 120 140 160 allowable power dissipation [mw] operating ambient temperature ta [?c] 98.1?c 60.2?c 334mw 578mw when mounted on a four-layer board when mounted on a one-layer board glass fabric base epoxy board, 76mm 114mm, t = 1.6mm item symbol rating unit remarks supply voltage1 vcc_12v 7.6 to 14.79 v protection function operates outside of vin12 rating. supply voltage2 vcc_5v 3.8 to 6.12 v protection function operates outside of vin5 rating. supply voltage3 vdd5 4.0 to 6.0 v vdd5 operating ambient temperature range topt ?25 to +85 ? c? junction temperature tj ?25 to +125 ? c? free datasheet http:///
CXA3822M - 3 - block diagram ampo12 vin12 ampin12 gnd12 xacdet xacdc_stby main_on latch5 acin_det ampo5 vin5 ampin5 vdd5 gnd5 bgr_vin5 vin12 reg vin12 lvp vin12 ovp lvp ovp vin5 reg vdd5 10k vdd5 10k vin5 lvp vin5 ovp lvp ovp bgr_vdd5 uvlo_vdd5 tsd osc vdd5 240k 60k vdd5 240k 60k 12v_ng detection circuit reference gnd: gnd12 12v_control circuit 5v_control circuit reference gnd: gnd12 reference circuit reference gnd: gnd12 5v_ng detection circuit reference gnd: gnd12 reference gnd: gnd12 control logic logic gnd: gnd12 14 16 13 1 15 11 8 9 5 4 6 3 temp test temp otp vdd5 temp lvp lvp otp 300k 2 7 10 12 reference gnd: gnd12 temperature detection circuit free datasheet http:///
CXA3822M - 4 - pin configuration vdd5 temp ampo12 top view 1 2 3 4 6 8 5 7 14 13 12 11 9 10 ampin12 gnd12 vin12 test latch5 vin5 gnd5 ampo5 ampin5 xacdc_stby acin_det xacdet mainon 16 15 free datasheet http:///
CXA3822M - 5 - pin table input logic output logic pin no. pin name in/out function 1vdd5 ?v dd power supply output 2 temp in temperature monitor input for overheat protection 3 ampo12 out 12v control output 4 ampin12 in 12v control input 5 gnd12 ? 12v control gnd, internal reference gnd, logic gnd 6 vin12 ? 12v input 7test ?nc 8 latch5 out signal for latch stop of 5v output 9 mainon out power supply main 12v output on/off signal 10 xacdet in ac/+b detection signal from power supply upstream 11 acin_det out ac detection signal 12 xacdc_stby in on/standby switchi ng signal for power supply (12v) 13 ampin5 in 5v control input 14 ampo5 out 5v control output 15 gnd5 ? gnd for 5v control 16 vin5 ? 5v input input signal l h xacdc_stby standby mode (12v = off) operating mode (12v = on) xacdet no upstream ac upstream ac output signal l h mainon main output on main output off acin_det abnormal (no ac) normal (ac) latch5 abnormal (5v off latch) normal free datasheet http:///
CXA3822M - 6 - pin description pin no. symbol i/o standard pin voltage equivalent circuit description 1 vdd5 ? ? ? vdd power supply input 2temp i gnd to vdd5 temperature monitor input for overheat protection 3ampo12 o gnd to vin12 12v control output 4ampin12 i gnd to vin12 12v control input 5 gnd12 ? ? ? gnd for 12v control 6 vin12 ? ? ? 12v input 7test ? ? ? nc 8latch5 o gnd to vdd5 signal for latch stop of 5v output 9mainon power supply main 12v output on/off signal 2 vdd5 gnd12 3 vin12 gnd12 4 vin12 gnd12 vdd5 gnd12 8 9 free datasheet http:///
CXA3822M - 7 - 10 xacdet i gnd to vdd5 ac/+b detection signal from power supply upstream 11 acin_det o gnd to vdd5 ac detection signal 12 xacdc_stby i gnd to vdd5 on/standby switching signal for power supply (acdc) 13 ampin5 i gnd to vin5 5v control input 14 ampo5 o gnd to vin5 5v control output 15 gnd5 ? ? ? gnd for 5v control 16 vin5 ? ? ? 5v input pin no. symbol i/o standard pin voltage equivalent circuit description vdd5 gnd12 10 11 vdd5 gnd12 vdd5 gnd12 12 vdd5 gnd12 13 gnd5 vin5 14 vdd5 gnd12 15 16 free datasheet http:///
CXA3822M - 8 - electrical characteristics circuit current ( unless otherwise specified, the conditions are vin5 = 5.5v, vdd5 = 5.0v, vin12 = 12v, ta = 25 ? c) note) co indicates capacitance connected to out pin. logic pin ( unless otherwise specified, the conditions are vin5 = 5.5v, vdd5 = 5.0v, vin12 = 12v, ta = 25 ? c) item symbol conditions min. typ. max. unit standby current istby1 power supply: vin5, vdd5 xacdc_stby = l (12v = off) ?0.71.0ma operating current1 icc1 power supply: vin5, vdd5 xacdc_stby = h (12v = on) ?1.73.0ma operating current2 icc2 power supply: vin12 xacdc_stby = h (12v = on) ?0.20.4ma item symbol conditions min. typ. max. unit logic pin input high voltage vih xacdc_stby, xacdet pin 2.0 ? vdd v logic pin input low voltage vil xacdc_stby, xacdet pin 0 ? 0.5 v logic input inflow current1 iin1 xacdc_stb, xacdet pin vin = 5v 10 17 25 ? a logic output high voltage voh acin_det, io = ?5ma vdd ? 0.3 ?vddv logic output low voltage vol acin_det, io = 5ma 0 ? 0.3 v output voltage during low (open drain pin) vli io = 5ma mainon, latch5 pin ??0.3v logic output high side on resistance roh acin_det, io = ?5ma 0 15 60 ? logic output low side on resistance rol1 acin_det, io = 5ma 0 15 60 ? output on resistance during low (open drain pin) rol2 io = 5ma mainon, latch5 pin 01560 ? free datasheet http:///
CXA3822M - 9 - 5v,12v control block ( unless otherwise specified, the conditions are vin5 = 5.5v, vdd5 = 5.0v, vin12 = 12v, ta = 25 ? c ) *1 detects temperature abnormality when temp/vdd5 ? 0.692. example of calculation: detects temper ature abnormality when temp/vdd5 = temp/5v ? 0.692, that is temp ? 0.692 ? 5 = 3.46v. item symbol conditions min. typ. max. unit 5v control voltage v5 voltage between vin5 and gnd5 vdd5 = 4 to 6v 5.47 5.53 5.59 v 5v input lvp detection voltage lvp5 voltage between vin5 and gnd5 vdd5 = 4 to 6v 3.8 4.0 4.2 v 5v input ovp detection voltage ovp5 voltage between vin5 and gnd5 vdd5 = 4 to 6v 5.88 6.0 6.12 v ampo5 output voltage during low vli_5v io = 5ma ? ? 0.3 v 12v control voltage v12 voltage between vin12 and gnd12 vdd5 = 4 to 6v 11.88 12 12.12 v 12v input lvp detection voltage lvp12 voltage between vin12 and gnd12 vdd5 = 4 to 6v 7.6 8 8.4 v 12v input ovp detection voltage ovp12 voltage between vin12 and gnd12 vdd5 = 4 to 6v 14.21 14.5 14.79 v ampo12 output voltage during low vli_12v io = 5ma ? ? 0.3 v temperature abnormality detection ratio *1 otp otp = temp/vdd vdd5 = 4 to 6v 0.68 0.692 0.704 ? temp pin lvp detection ltp ? 0.05 0.1 0.2 v vdd5 operation start voltage act_vdd vdd5 = l ? h 3.1 3.3 3.5 v vdd5 operation stop voltage uvlo_vdd vdd5 = h ? l 2.5 2.7 2.9 v hysteresis width hys_vdd hys_vdd = act_vdd ? uvlo_vdd 0.2 0.5 1.0 v free datasheet http:///
CXA3822M - 10 - description of operation 1. 5v control circuit and 12v control circuit fig.1 shows the equivalent circuit for the 5v and 12v control block. when the vin5 voltage exceeds 5.5v, the internal amp output switches and current is drawn from ampo5. this enables control of vin5 at 5.5v in combination with the primary side via a photocoupler connected to the ampo5 pin. the 12v control operates in like manner; current is drawn from the ampo12 pin when the vin12 voltage exceeds 12v. this enables control of vin12 at 12v in combination with the primary side via a photocoupler connected to ampo12. fig.1. 5v and 12v control equivalent circuit 5v control circuit ampo5 vin5 ampin5 22.5k 1v 5k vin5 reg 5vsb 5vsb reg ampo12 vin12 ampin12 55k 5k vin12 reg vin12 12v reg 12v control circuit 1v 22 24 21 3 6 4 5v and 12v control block free datasheet http:///
CXA3822M - 11 - 2. 5v and 12v contro l abnormality detection fig.2 shows the equivalent circui ts for the 5v and 12v control voltage abnormality detection block. when an abnormal 5v and 12v control reg voltage o ccurs during operation, the device detects the abnormality and transitions to the ?latch stop? state. (for the states following abnormality detection, see the state transition diagram on page 19.) the abnormality detection voltages are as follows. 5v control abnormality detecti on------- lvp: 4v or lower ovp: 6v or higher 12v control abnormality detection------ lvp: 8v or lower ovp: 14.5v or higher fig.2. 5v and 12v control abnormali ty detection equivalent circuit 5v and 12v control voltage abnormality detection block 5v_ng detection circuit 5vsb vin5 lvp (4v detection) vin5 ovp (6v detection) lv p ovp vin5 control logic 12v_ng detection circuit vin12 vin12 lvp (8v detection) vin12 ovp (14.5v detection) lv p ovp vin12 6 24 free datasheet http:///
CXA3822M - 12 - 3. temperature abnormali ty detection circuit fig.3 shows the equivalent circuit for the temperature abnormality detection block. as shown in the figure, a thermistor connected between the temp and vdd5 pins enables detection of abnormal board temperatures. a temperature error is det ected when the voltage ratio of the temp and vdd5 pins is 0.692 or more (temp/vdd5 ? 0.692). a temperature abnormality is defined when the abnormal temperature continues for 1.1 seconds. when a temperature abnormality is detected, the device transitions to the ?abnormality detection? or ?latch stop? state. (for the states following abnormality detection, see the state transition diagram on page 14.) in addition, as a pin protection function, the same abnormality is detected when the voltage of the temp pins falls to 0.1v or lower. fig.3. temperature abnormality detection equivalent circuit control logic temperature detection circuit otp lv p temperature abnormality detection block temp thermistor 300k vdd5 vdd5 2 temp otp (70 ?c detection) temp lvp (0.1v detection) free datasheet http:///
CXA3822M - 13 - 5. state transition diagram fig.4 shows a state transition diagram (main state). transitions between states occur in response to input signal s from external sources or the condition of the 5v and 12v outputs. fig.4. state transition diagram input signal descriptions no. input signal name signal description * 1 sys_rst reset signal based on logic power supply (vdd5 pin) high: reset (vdd5 ? 2.7v), low: reset canceled (vdd5 ? 3.3v) initialization main_on = h acin_det = l latch5 = h standby main_on = h acin_det = h latch5 = h 12v start main_on = l acin_det = h latch5 = h main_on = l acin_det = h latch5 = h ac recovery 1 main_on = h acin_det = l latch5 = h ac recovery 2 main_on = h acin_det = l latch5 = h any main_on = ? acin_det = ? latch5 = ? sys_rst = h ( ? 1) (non-synchronous reset) [xacdet = l] 550ms elapsed sys_rst = l ( ? 1) & 110ms elapsed xacdc_stby = h xacdc_stby = l ovp5 9 vin5 [vin5 9 lvp5] or [ovp5 9 vin5] 5v latch stop main_on = h acin_det = l latch5 = l ovp5 9 vin5 [vin5 9 lvp5] or [ovp5 9 vin5] 12v latch stop main_on = h acin_det = l latch5 = h ovp12 9 vin12 error detection main_on = l acin_det = l latch5 = h [temp 9 ltp5] or [otp 9 temp] [vin12 9 lvp12] or [ovp12 9 vin12] [vin5 9 lvp5] or [ovp5 9 vin5] 55ms elapsed t1 count-up (550ms elapsed) [vin12 9 lvp12] or [ovp12 9 vin12] ovp12 9 vin12 ac off main_on = h acin_det = l latch5 = h 55ms elapsed ovp12 9 vin12 ovp5 9 vin5 [xacdet = l] & 110ms elapsed 550ms elapsed [vin5 9 lvp5] or [ovp5 9 vin5] or [temp 9 ltp] or [otp 9 temp] [ 44ms elapsed with xacdet = l ] xacdet = l [xacdet = h] normal operation within dotted line: t1 count enabled 35s 5 times 5vin_ovp 35s 5 times 12vin_lvp 35s 5 times 5vin_lvp 144ms 8 times xacdet 4.4s 5 times 2.2ms 5 times xacdc_stbt 141s 5 times temp_otp 35s 5 times 12vin_ovp input signal defined time immediately sys_rst input signal defined time temp_ltp free datasheet http:///
CXA3822M - 14 - ac off timing chart when ac input stops while in the ?standby? or ?12v start? state, the device transitions to the ?ac off? state after a minimum of 44ms has elapsed. the conditions for a transition from the ?standby? or ?12v start? state to the ?ac off? state are as follows: conditions for transition to ?ac off?: xacdet = low for 44ms duration when the ac input returns within 44ms, no transition to the ?ac off? state occurs and the current state is maintained. a timing chart for the transition from ?standby? to ?ac off? is shown below. a timing chart for the transition from ?norma l operation? to ?ac off? is shown below. when ac input stops while in a state other than ?standby? or ?12v start,? the transition to the ?ac off? state occurs the moment the xacdet pin goes low, regardless of whether or not 44ms have elapsed. standby or 12v start main state xacdet main_on ac off acin_det device input signals device output signals acin_det = h l due to transition to ac off state 44ms [xacdet = l for 44ms duration] transition to ac off state 44ms ac input ac off transition from "standby" or "12v start" to ?ac off? normal operation main state ac off xacdet acin_det = h l due to transition to ac off state [xacdet = l] transition to ac off state ac off main_on acin_det device input signals device output signals ac input transition from ?normal operation? to ?ac off? free datasheet http:///
CXA3822M - 15 - start timing chart fig.5 shows a timing chart for the start of operation. the device is in the ?initialization? state until 110ms have elapsed after the rising edge of vin5 and vdd5 exceeds 3.3v. in the ?initialization? state, 5v lvp detection, tem perature detection, and ac off detection are all disabled as the device waits for 5v supply to start. after this, it transitions to the ?standby? state and waits for the 12v start instruction (xacdc_stby) from the system. abnormal voltage detection, temperature detection, and ac off detection are enabled from the ?standby? state onward. when the 12v start instruction is received, the device enters the ?12v start?, 12v abnormal voltage detection is disabled for a maximum of 550ms. after that, if tha the device enters the ?normal operation? state 12v abnormal voltage detection is enabled. fig.5. start timing chart main state initialization standby main_on normal operation xacdet protection functions temp otp ltp disabled enabled disabled disabled enabled disabled enabled enabled disabled disabled enabled enabled enabled enabled disabled enabled enabled enabled enabled enabled enabled enabled enabled enabled vin5 vin12 110ms 12v start xacdc_stby 2.2ms 5 times max. 550ms 55ms 12v start instruction from system ac input vdd5 uvlo canceled (vdd5 3.3v) latch5 transition to 12v start state when xacdc_stby = h main_on = h l 550ms timer start acin_det acin_det = l h due to transition to standby 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) device input signals device output signals free datasheet http:///
CXA3822M - 16 - stop timing chart 1 fig.6 shows a timing chart for the transiti on from ?normal operation? to ?latch stop?. when a 12v stop instruction (xacdc_stby = l) is received from the system during normal operation, the device transitions to the ?standby? approximately 11ms later. in the ?standby? state 12v lvp and ovp detection are disabled. when ac input stops while in ?standby?, input from th e primary side causes the xacdet pin to change from high to low, and the device enters the ?ac off? state 44ms later. when in the ?ac off? state, 5v lvp detection is disabled. with no ac input, the device enters the any stat e (reset condition) when 5v input drops and vdd ? 2.7v. fig.6. stop timing chart 1 main state standby normal operation initialization enabled enabled enabled disabled disabled enabled enabled disabled enabled enabled enabled enabled enabled disabled disabled disabled disabled enabled disabled enabled enabled disabled vin5 vin12 main_on xacdc_stby 2.2ms 5 times 12v stop instruction from system ac input 44ms xacdet ac off acin_det latch5 ac off transition to standby state when xacdc_stby = l main_on = l h input from primary side due to ac off xacdet = h l acin_det = h l due to ac off vdd = 2.7v transition to any state when vdd 2.7v all protection functions disabled (reset condition) temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) protection functions device input signals device output signals enabled enabled free datasheet http:///
CXA3822M - 17 - stop timing chart 2 fig.7 shows a timing chart for the transition from ?a c off? to ?stop? in the ?normal operation? state. when ac input stops while in ?normal operation?, input from the primary side causes the xacdet pin to change from high to low, and the device enters the ?ac off? state. when in the ?ac off? state, 5v lvp detection is disabled. with no ac input, the device enters the any stat e (reset condition) when 5v input drops and vdd ? 2.7v. fig.7. stop timing chart 2 main state normal operation xacdet initialization enabled disabled enabled enabled enabled enabled enabled disabled disabled disabled disabled enabled disabled enabled enabled disabled vin5 vin12 ac off main_on xacdc_stby ac input acin_det ac off main_on = l h due to ac off input from primary side due to ac off xacdet = h l acin_det = h l due to ac off vdd = 2.7v transition to any state when vdd 2.7v all protection functions disabled (reset condition) temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) latch5 protection functions device input signals device output signals enabled enabled free datasheet http:///
CXA3822M - 18 - emergency stop timing chart 1 fig.8 shows a timing chart for a temper ature abnormality during ?normal operation?. when a temperature abnormality occurs while in the ?normal operation? state, the device transitions to the ?error detection? state, then 55ms later to ?12v latch stop? and 550ms later to ?5v latch stop?. fig.8. temperature abnormality during 12v operation normal operation error detection main state xacdet enabled disabled enabled enabled enabled enabled enabled disabled disabled disabled disabled disabled enabled enabled disabled disabled disabled disabled enabled enabled enabled enabled disabled disabled main_on 12v latch stop 5v latch stop 55ms 550ms acin_det vin5 xacdc_stby 550 ms and 55 ms timer start 12v off at latch12 = l 5v off at latch5 = l main_on = l h at transition to 12v latch stop state acin_det = h l at transition to error detection state latch5 = h l at transition to 5v latch stop state temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) vin12 latch5 protection functions device input signals device output signals temperature error (1.1s elapsed) free datasheet http:///
CXA3822M - 19 - emergency stop timing chart 2 fig.9 shows a timing chart when detecting 12v voltage abnormality during ?normal operation?. when 12v voltage abnormality occurs while in the ?normal operation? state, the device transitions to the ?12v latch stop? state, then 550ms later to ?5v latch stop?. fig.9. 12v voltage abnormality during 12v operation normal operation 550ms main state xacdet enabled disabled enabled enabled enabled enabled enabled disabled disabled disabled disabled disabled enabled enabled disabled disabled disabled disabled main_on 12v latch stop 5v latch stop acin_det vin5 xacdc_stby 550ms timer start 12v off at latch12 = l 5v off at latch5 = l main_on = l h at transition to 12v latch stop state acin_det = h l at transition to 12v latch stop state latch5 = h l at transition to 5v latch stop state temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) vin12 latch5 protection functions device input signals device output signals 12v error voltage detection free datasheet http:///
CXA3822M - 20 - emergency stop timing chart 3 fig.10 shows a timing chart when detecting 5v voltage abnormality during ?normal operation?. when 5v voltage abnormality occurs while in the ?normal operation? state, the device transitions to the ?5v latch stop? state. fig.10. 5v voltage abnormality during 12v operation normal operation main state xacdet enabled disabled enabled enabled enabled enabled enabled disabled disabled disabled disabled disabled main_on 5v latch stop acin_det vin5 xacdc_stby 12v off at latch12 = l 5v off at latch5 = l main_on = l h at transition to 5v latch stop state acin_det = h l at transition to 5v latch stop state latch5 = h l at transition to 5v latch stop state temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) device input signals device output signals vin12 latch5 protection functions 5v error voltage detection free datasheet http:///
CXA3822M - 21 - emergency stop timing chart 4 fig.11 shows a timing chart when detecting 5v vo ltage abnormality or temperature abnormality during ?standby?. when 5v voltage abnormality or temperature abnormality occurs while in the ?standby? state, the device transitions to the ?5v latch stop? state. fig.11. 5v voltage abnormality or temperature abnormality during standby standby main state xacdet enabled disabled enabled disabled disabled enabled enabled disabled disabled disabled disabled disabled main_on 5v latch stop acin_det latch5 vin5 xacdc_stby 5v off at latch5 = l acin_det = h l at transition to 5v latch stop state latch5 = h l at transition to 5v latch stop state temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) protection functions device input signals device output signals 5v error voltage detection free datasheet http:///
CXA3822M - 22 - ac return timing chart 1 fig.162 shows a timing chart for the period from ac off to return during ?normal operation?. when primary side ac input stops while in the ?norma l operation? state, the xacdet pin, which is the secondary side input, goes low and the device transitions to the ?ac off? state. (see page 15 for details.) when ac input subsequently returns, the device transitions to the ?ac return 1? state for 55ms, then to the ?ac return 2? state for 550ms, and finally enters the ?standby? state. if an ac off condition is detected while in an ?ac return? state, the device again transitions to the ?ac off? state. fig.12. ac off to return during 12v normal operation normal operation main state standby normal operation xacdet enabled enabled enabled enabled enabled enabled enabled enabled disabled disabled enabled enabled enabled enabled enabled disabled enabled enabled enabled enabled enabled enabled enabled enabled disabled enabled disabled enabled enabled disabled disabled enabled disabled enabled enabled disabled enabled enabled disabled disabled enabled disabled main_on ac off ac return 1 ac return 2 550ms acin_det 55ms 12v start vin5 2.2ms 5 times vin5 drop due to ac off xacdc_stby latch5 550ms input change due to ac return xacdet = l h input change due to ac off xacdet = l h main_on = l h due to transition to ac off state acin_det = h l due to transition to ac off state main_on = h l due to transition to 12v start state acin_det = l h due to transition to standby state temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) vin12 ac input protection functions device input signals device output signals ac return free datasheet http:///
CXA3822M - 23 - ac return timing chart 2 fig.13 shows a timing chart for the period from ac off to return during ?standby?. when primary side ac input stops while in the ?standby? state, the xacdet pin, which is the secondary side input, goes low and the device transitions to the ?ac off? state. (see page 15 for details.) when ac input subsequently returns, the device transitions to the ?ac return 1? state for 55ms, then to the ?ac return 2? state for 550ms, and finally enters the ?standby? state. if an ac off condition is detected while in an ?ac return? state, the device again transitions to the ?ac off? state. fig.13. ac off to return during standby standby main state standby xacdet enabled enabled enabled enabled enabled enabled disabled enabled disabled enabled enabled disabled disabled enabled disabled enabled enabled disabled enabled enabled disabled disabled enabled disabled enabled enabled disabled disabled enabled enabled main_on ac off ac return 1 ac return 2 550ms acin_det 55ms vin5 vin5 drop due to ac off xacdc_stby input change due to ac return xacdet = l h input change due to ac off xacdet = l h acin_det = h l due to transition to ac off state acin_det = l h due to transition to standby state 44ms temp otp ltp 5v_lvp 5v_ovp 12v_lvp 12v_ovp xacdet (ac on/off) ac input latch5 protection functions device input signals device output signals ac return free datasheet http:///
CXA3822M - 24 - application circuit ampo12 vin12 xacdet xacdc_stby main_on latch5 acin_det bgr_vin5 vin12 reg vin12 lvp vin12 ovp lvp ovp vin5 reg vdd5 10k vdd5 10k vin5 lvp vin5 ovp lvp ovp bgr_vdd5 uvlo_vdd5 tsd osc vdd5 240k 60k vdd5 240k 60k vin12 ampin12 gnd12 acdc_stby vdd5 acin_det ac_detout on/off (main_on) 5vsb latch test temp ampo5 vin5 ampin5 vdd5 gnd5 2.2f 5vsb 5vsb reg reference gnd : gnd12 5v_control circuit reference gnd:gnd12 reference circui t reference gnd : gnd12 5v_ng detection circuit reference gnd : gnd12 thermistor application circuits shown are typical examples illustrating the operation of the devices. sony cannot assume responsibility for any problems aris ing out of the use of these circuits or for any infringement of third party patent and other right due to same. 14 16 13 1 15 11 8 9 5 4 6 3 temp otp vdd5 temp lvp lvp otp 300k 2 7 10 12 control logic logic gnd:gnd12 reference gnd : gnd12 12v_control circuit 12v_ng detection circuit temperature detection circuit reference gnd : gnd12 free datasheet http:///
CXA3822M - 25 - sony corporation package outline ( unit: mm) package structure package material lead treatment lead material package mass sony code eiaj code jedec code sop-16p-l01 sop016-p-0300 copper alloy solder plating epoxy resin 16pin sop (plastic) 9.9 ? 0.1 + 0.4 16 9 18 1.27 0.45 0.1 + 0.3 0.2g 1.85 ? 0.15 + 0.4 0.2 ? 0.05 + 0.1 0.1 ? 0.05 + 0.2 6.9 0.15 m 0.24 0.5 0.2 5.3 ? 0.1 7.9 0.4 lead plating specifications item lead material copper alloy solder composition sn-bi bi:1-4wt% plating thickness 5-18m spec. free datasheet http:///

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