SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 SSC9502S Application Note (Ver. 0.1) Sanken Electric Co., Ltd http://www.sanken-ele.co.jp Page.1
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 / / / / / / / / / / / / / / / / / :Contents / / / / / / / / / / / / / / / / IC 路例 7.1 VCC 7.2 RV 7.3 FB 7.4 CSS 7.5 Vsen 7.6 Reg ) 7.7 OC 7.8 RC 7.9 VGH VGL 8.1 8.2 / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / Page.2
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 流 路 易 行 率 率 力 離 離 路 ead-time.brown In/Brown Out (Over Current Protection) 3 (Over Load Protection) atch (Over Voltage Protection) atch Page.3
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Page.4
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 IC 内 V CC 2 14 V GN 4 GND START/STO Reg /Bias OVP/Latc Level Shift High Side Driver UVLO VC 16 VG 15 V Vse 1 Input S ense OL Main Logic 8 Re 11 VG 10 COM Dead 3 FB Frequency RC Detector 7 Tim F Control R Control 9 RV Detector Freq R 5 Ma Sof - Start /OC Css 6 OC Detector Standby Control O Terminal Symbol 1 Vsen 2 V CC 3 FB 4 GND 5 Css 6 OC 7 RC 8 Reg 9 RV 10 COM 11 VGL Description (AC line) Detection of input AC line voltage terminal Power supply terminal FB Feed back terminal Ground for control terminal Css Soft start capacitor terminal OC 流 Over current detection terminal RC 流 Resonance current detection terminal Reg Internal regulator terminal RV Resonance voltage terminal Gnd Ground for power terminal Low- Side Gate Low-side gate drive terminal 1213 NC NC 14 V B 15 V S 16 VGH High-Side MOSFET High-side gate drive supply terminal High-Side MOSFET High-side drive floating ground terminal High-Sside Gate High-side gate drive terminal 1718 NC NC Functions (AC line) Detection of input AC line voltage Supply voltage for control / Control for output/detection of over load Ground for control 連 Terminal for connection of capacitor for soft start 流 Detection of over current 流 Detection of resonance current ate Drive Supply voltage output for gate drive circuit Detection of resonance voltage Power Gnd Ground for power Low side Gate Low-side gate drive 連 None High-Side MOSFET Supply voltage for High-side gate drive High-Side MOSFET High-side drive floating ground High-Side Gate High-side gate drive 連 None Page.5
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Parameter V s e n Vsen terminal voltage Input voltage for control part F B FB terminal voltage C s s Css terminal voltage R C RC terminal voltage Terminal Symbol Ratings Unit 1-4 Vsen 0.3 V Reg V 2-4 V CC 0.335 V 3-4 V FB 0.310 V 5-4 V Css 0.312 V 7-4 V RC 66 V Note R V RV terminal current 9-4 I RV 22 ma DC 100100 O C OC terminal voltage 6-4 V OC 66 V Reg Reg terminal source current 8-4 I Reg 20.0 ma VB VS Voltage between VB and VS terminal 14-15 V B-V S 0.313.0 V V S VS terminal voltage 15-4 V S 1600 V Storage temperature T stg 40125 度 Junction temperature Tj 150 ma ulse 40ns Pulse 40ns Page.6
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 V CC 19VTa=25 Rating Parameter Terminal Symbol MIN TYP MAX Unit Remark Start / Circuit current Operation start voltage 2-4 V CC (ON) 10.2 11.8 13 V Operation stop voltage 2-4 V CC (OFF) 8.8 9.8 10.9 V Circuit current in operation 2-4 I CC (ON) 20.0 ma Circuit current in non-operation 2-4 I CC (OFF) 1.2 ma V CC =9V Circuit current in latch-operation 2-4 I CC (L) 1.2 ma V CC =11V OLP Latch Latch OLP latch / Latch from outside FB FB terminal source current 3-4 I FB -30.5-25.5-20.5 A FB FB terminal threshold voltage 3-4 V FB 6.55 7.05 7.55 V Css (1) Css terminal threshold voltage(1) 5-4 V Css (1) 7.0 7.8 8.6 V atch V CC V 2-4 CC Vcc 6.7 8.2 9.5 V (La.off) Latch circuit release V CC voltage (La.off) <Vcc (OFF) Oscillator 11-10 Minimum frequency 16-15 F (MIN) 26.2 28.3 31.2 khz 11-10 Maximum frequency 16-15 F (MAX) khz ead-time 11-10 Maximum dead-time 16-15 T d(max) 1.90 2.45 3.00 s Dead-time 11-10 Minimum dead-time 16-15 T d(min) 0.25 0.50 0.75 s Control urst FB Burst mode start FB terminal source 3-4 I cont (1) -2.85-2.50-2.15 ma current FB Oscillation stop FB terminal source 3-4 I cont (2) -3.0 ma current Soft start Css Css terminal charge current 5-4 I Css (C) -0.21-0.18-0.15 ma Css 復 Css terminal reset current 5-4 I Css (R) 1.0 1.8 2.4 ma V CC =9V Page.7
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Rating Parameter Terminal Symbol MIN TYP MAX Unit Over voltage protection OVP V CC OVP operating V CC voltage 2-4 V OVP 28.0 31.0 34.0 V Detection of current resonantover current protection 流 離 Uncontrollability detection voltage 7-4 V RC 0.055 0.155 0.255 V RC (Fatch) RC terminal threshold voltage 7-4 V RC (FL) 2.80 3.05 3.30 V (Frequency latch) OC (Low) OC terminal threshold voltage(low) 6-4 V OC (L) 1.42 1.52 1.62 V OC (High) OC terminal threshold voltage (High) 6-4 V OC (H) 1.69 1.83 1.97 V OC (F Latch) OC terminal threshold voltage 6-4 V OC (FL) 2.80 3.00 3.25 V (Frequency latch) Css sink Css terminal sink current Detection of voltage resonant (1) RV terminal voltage detect Resonance voltage(1) (2) RV terminal voltage detect Resonance voltage(2) Stand by 率 Burst oscillation frequency ONOFF ONOFF Css (2) Css terminal threshold voltage (2) 力 検 Input voltage detect function Vsen (ON) Vsen terminal threshold voltage (ON) Vsen (OFF) Vsen terminal threshold voltage (OFF) Supply of driver circuit V Reg terminal output voltage (L) 1.0 1.8 2.4 5-4 I Css (H) 12.0 20.0 28.0 (FL) 11.0 18.3 25.0 9-4 V RV (1) 3.8 4.9 5.4 V 9-4 V RV (2) 1.20 1.77 2.30 V ma 5-4 f CSS 85 105 125 Hz 5-4 V Css (2) 0.50 0.59 0.68 V 1-4 Vsen(ON) 1.26 1.42 1.57 V 1-4 Vsen(OFF) 1.06 1.16 1.26 V 8-4 V Reg 9.9 10.5 11.1 V Remark Page.8
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Parameter High-side High-side driver High-side driver High-side drive operation start voltage High-side driver High-side drive operation stop voltage Drive circuit VGL,VGH terminal out-flow source current sink VGL,VGH terminal in-flow sink current Terminal Rating Symbol MIN TYP MAX Unit 14-15 V BUV (ON) 7.3 V 14-15 V BUV (OFF) 5.8 6.5 7.2 V 11-10 16-15 11-10 16-15 IGL SOURCE IGH SOURCE -600 ma IGL SINK IGH SINK 600 ma Remark Parameter MIC MIC junction-air Rating Symbol MIN TYP MAX Unit j-a /W Remarks Page.9
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 VB VGH Reg SSC9502S VS VGL Cv Ci OUT Vsen COM Vcc FB GND CSS OC RC RV Page.10
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 VCC 71 72VCC VCC(ON) =11.8V(TYP) VCC (OFF)=9.8VTYPUVLO 復 狀 CVCC VCC 離 Cf0.1µF Icc 20.0mA (MAX ) SSC9502S Vcc GND 4 2 Cf Cvcc 1.2mA (MAX ) 9V 9.8V(TYP) Vcc 11.8V (TYP ) Vc1 ~GND 28.0V(Typ) IC OVP 路 Latch IC 35V (OVP) 路 (OLP) IC Low AC 切 Vc1 Vc1(La.off)=8.2V(Typ) Latch Page.11
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Low-Side MOSFET VDS dv/dt High-SideLow-Side MOSFET ZVS(Zero Voltage Switching) 73 (10p ) 連 VS RV SSC9502S Reg 16 VGH VS 15 Lp SW2 VGL 11 Cv log ic COM Rv 10 9 Crv SW1 Ci 73 RV Dead-time IC Reg GND 率, Low-Side MOSFET VDS dv/dt Crv 流 RV Low-Side MOSFET dv/dt SW1 SW2ON 良 Low-s ide VDS dv ON OFF ON dt dt i 74 i (1) ( dv/dt ) i Crv 1 dv/dt Crv 來 i (2) Crv dt 度 40nS 100mA i 100mA 40nS dv 2 Page.12
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 75 Low-side MOSFET OFF ICSW1ON SW2ON 流 CvCiLp Cv 0V High-side MOSFET VF 流流 High-side MOSFET Low-side MOSFET VDS Low-Side MOSFET VDS dv/dt Crv RV RV IC IC RV IC IC(1)VRV(1)High-side MOSFETON SW1OFF Dead-time High-side MOSFET OFF ICSW2 ON SW1ON 流 CvCiLp Cv Low-side MOSFET VF 流流 Low-Side MOSFET High-side MOSFET VDS Low-Side MOSFET VDS dv/dt Crv RV RV IC IC GND RV IC IC(2)VRV(2)Low-Side MOSFET ON SW2 OFF Dead-time Page.13
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Dead-time 76 MOSFETONSwitching IC Dead-time 若 RV VRV(1)VRV(2) 行 ZVS 76 ZVS IC 77 Id()( Body-Diode ) 若 450nS ZCS (Zero Current Switching) 狀 450nS Ci Lp 度 77 ZCS Page.14
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 FB 3 OLP 切 4 GND SSC9502S 3 FB C6 R1 R2 C7 PC1 FB 連 拉 Flyback 行 2 CTR FB 流 流 FB Icont(2) = 3.0mA(TYP) 78 R2 數 680 2 OCPIC 率 降 2 lyback FB 流 IFB= 25.5ATYP C7 79 FB FB VFB705V(TYP) atch IC (3) tdly ( 4.05V R1 25.5uA ) C7 3 25.5uA R1=47kC7=10uF 1 sec Page.15
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 CSS 2 atch 4 GND SSC9502S Css 5 C8 率 CSS CSS 連 C8 CSS ICSS(C)=0.18mA(TYP)CSS 0V 率 率, 離 力 VCC VCC(OFF)=9.8V(TYP) Latch OVP LatchOLP Latch C8 CSS 復 ICSS(R)=1.8mA(TYP) CSS bnormal CSS CSS VCSS(1)=7.8V(TYP) Latch 流 100uA sink IC 路 流 ss 不 Latch VCC VCC VCC VCC(La.off)=8.2V(TYP) 行 CSS 不 ( 10VZener 連 Page.16
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Vsen IC (Brown in/brown Out VCC VCC(OFF) 來 712 R4~R7 Vsen Vsen (ON)Vsen (ON)=1.42V(TYP) IC Vsen (OFF)Vsen (OFF)=1.16V(TYP) IC RC1 C1 C9 R4 R5 R6 R7 1 4 Vsen GND SSC9502S IC DC Ein(ON) DC Ein(OFF)(4) Ein(ON) Vsen ( ON ) R 4 + R5 + R6 R7 Vsen(OFF) Ein ( OFF ) Ein( ON ) 4 Vsen(ON) Vsen(ON) C9 降 兩 0.1uF R4R6 R4R7C9 Reg High-side MOSFETootstrap Regulator Reg VS D2R9C11 C11 路 Abnormal VBVS High-side Driver VBUV(OFF)=6.5V(TYP) High-side Driver D2 ecovery Time Diode UFRD Vrm=600V AG01AEG01A C11 ESR Page.17
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 1 2 4 Reg VB VGH VS Vsen Vcc 8 14 16 SSC9502S GND FB Css RC OC 3 5 7 6 9 VGL COM Rv 15 11 10 C12 Cv i(h) Ci C8 R11 C13 R10 OC 714 OC C12 Ci R10 / 便 R10R11C12C13 狀 R10 High-side MOSFETON i (H)OC (Low)VOC(L) C12Ci 5) R10 VOC ( L ) 5 C12 i(h) C12 + Ci R10 7.8 RC 離 離 兩 R10 C12 R1 100 C12 Ci 1100 filter R11 470C13 680pF 3 OC OC (Low)VOC(L)=1.52V(TYP)CSS 連 C8,CSS Sink ICSS(L)=1.8mA(TYP) IC 率 C8 OC 若 VOC(L) OC VOC(H)=1.83V(TYP)C8CSS(H)= 20mA(TYP)IC 率 ICSS(H)ICSS(L)11 率 C8 OC 若 VOC(H) OC VOC(FL)=3.00V(TYP)C8 ICSS(FL)= 18.3mA(TYP) IC 率 C8 OC VOC(FL)C8CSS CSS (2)VCSS(2)=0.59V(TYP)CSS Page.18
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 RC 離 率 F Latch 離 度 715 RC OC Filter 連 C14 100pF R10C12 7.7 OC 離 VRC, R10 離 易 OFF RC 不 6V 1 2 4 Reg VB Vsen Vcc GND 8 14 16 SSC9502S FB CssRC OC VGH VS 3 5 7 6 9 VGL COM Rv 15 11 10 C14 R10 C12 IL Cv Ci 離 ZVSZCS Hard Switching 離 離 High-side MOSFET ON RC 離 VRC=0.155V (TYP) 便 離 參 720 RC High-side MOSFETOFF Low-side MOSFETON High-side MOSFET VRC=0.155V(TYP) 離 Low-side MOSFETOFF 離 率 離 率 離 離 Page.19
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 率 RC RC FatchVRC(FL)=3.05V(TYP) 狀 Fatch F atch 7.7 OC OC (F atch) VGH VGL MOSFET sink/source Peak0.6A(TYP) 718 R12R13D4MOSFET ate 鈴 EMI R14 MOSFET dv/dt 10k100k R12 量 MOSFETGATE SOURCE R13 D4 R14 Page.20
SSC9502S PRELIMINARY APPLICATION NOTE Ver. 0.1 Ci 流 Ci olypropylene ilm 數 Gnd Gnd 4 GND 10 COM 不 VCC CVCC 離 Cf Film 01F IC 8-2 路 不 Noise 流 流 降 8-2 流 / 流流 () witching 流 離 MOSFET Rds(ON) 度 數 Page.21