L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So PWM IC for the synchronized deflection system control GENERAL DESCRIPTION PIN CONFIGURATION(TOP VIEW) PWM OUT 1 16 GND Vcc 2 15 VREF TIN 3 Cosc 4 Cagc 5 POUT 6 11 IN+ OVP 7 10 BO UVP 8 9 BI FEATURES • PWM output synchronized with external signals • Wide pulse width modulation control frquency 15kHz to 150kHz • Soft start function • The under voltage output malfunction protection circuit start Vcc > 9V stop Vcc < 6V • Built-in over voltage protection (OVP) and under voltage protection (UVP) control M62501 The M62501P/FP is a controller for a deflection system of CRT display monitors. It performs a stable PWM control over a wide fluctuation of external signals, thanks to the built-in trigger mode oscillator. The IC is suitable for an application to a high voltage drive of monitors because of its following circuits and functions; • low voltage mulfunction protection circuit, • over or under voltage protection circuit for a control line, • soft-start function. It is also applicable to a horizontal output correction. 14 DTC 13 FB 12 IN- P: 16P4 FP: 16P2S outline APPLICATION • CRT display monitor BLOCK DIAGRAM GND VREF 16 15 VCC VREF DTC FB 14 IN- IN+ BO BI 12 11 10 9 13 Amp Amp Comp Latch VREF Comp UVLO 1 PWM OUT GEN AGC 5 2 3 4 VCC TIN COSC 0.5V 6 CAGC POUT ( 1/ 9 ) Comp 7 8 OVP UVP 9702 L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So PWM IC for the synchronized deflection system control Terminal Number and The facility PIN No. Symbol Functional Description 1 PWM OUT PWM output 2 VCC Power supply 3 TIN Trigger input 4 COSC Setting oscillating frequency 5 CAGC AGC setting 6 P.OUT Error signal output 7 OVP Input of over voltage protection 8 UVP Input of under voltage protection 9 BI Positive input of buffer Amp. 10 BO Output of buffer Amp. 11 IN+ Positive input of Op-Amp. 12 IN- Negative input of Op-Amp. 13 FB Output of Op-Amp. 14 DTC Dead time control (Soft start function) 15 VREF Output of reference voltage (5V) 16 GND Ground ABSOLUTE MAXIMUM RATINGS (Ta=25°C,unless otherwise noted) Symbol Parameter Conditions Ratings Unit VCC Supply voltage 15 V VOUT Output voltage 15 V IOUT Output current ±100 mA VICM Error Amplifier input common mode voltage -0.3 ~ VCC V VID Error Amplifier differential input voltage VCC V Pd Power dissipation Kø Thermal derating Topr Operrating temperature -20 ~ +75 °C Tstg Storage Temperature -40 ~ +150 °C Ta ≥ 25°C ( 2/ 9 ) P 1200 P 9.6 FP 650 FP 5.2 mW mW/°C 9702 L Yification.change. A N I nal specubject to M I a fi are s L E is is not limits PR ;Th etric ces am i r Not me pa So MITSUBISHI <Digi./Ana.INTERFACE> M62501P,FP PWM IC for the synchronized deflection system control ELECTRICAL CHARACTERISTICS (Vcc = 12V, TIN = 40kHz, Ta = 25°C, unless otherwise noted) Block Symbol Parameter Test conditions Min Range of power supply VCC OFF VCC Circuit current Output off mode ICC Reference voltage IREF=-5mA VREF 4.80 Reg-in Input regulation Vcc=7 ~ 14V IREF=-5mA Reference Reg-L Load regulation IREF=0 ~ -5mA voltage Reference voltage thermal coefficient TC V REF section IREF MAX Maximum reference current Short-circuit current IS Input offset voltage VIO IIb Input bias current -100 IIO Input offset current -100 Common mode input voltage range V ICM -0.3 Error Open loop transmission gain 70 Amp. AV Slew rate SR VOR Output voltage range 0.3 10 Isink Output sink current Isourse Output source current Ib Input bias current -20 SR Slew rate Buffer Output voltage 0.3 Amp. VOR Isink Output sink current 2 Isource Output source current Oscillation frequency fOSC 15 VOSC H The oscillator waveform bound voltage Oscillator VOSC L The oscillator waveform lower limit voltage 2.5 VTIN H High level of TIN VTIN L Low level of TIN PWM Output saturation voltage L V sat L IO=100mA output section Vsat H Output saturation voltage H IO=-100mA 9.5 ON threshold voltage 8.0 VTH ON UVLO section VTH OFF OFF threshold voltage 5.4 OVP terminal threshold voltage 4.75 VTH OVP OVP section IIN OVP OVP terminal input current VUVPO Input offset voltage UVP section IIN UVP UVP terminal input current Output saturation voltage IPO=10mA Vsat P.OUT section VPO=12V Output leakage current IL All Device ( 3/ 9 ) Limits Typ 20 5.00 1.0 2.0 0.01 -30 -30 Max 14 V mA 5.20 10 20 V mV mV % / °C 7 100 VCC-2 110 4 mA mA mV nA nA V dB V / µs VREF-1.5 -10 V mA mA nA V / µs 4 Vcc-2.5 -10 150 3.5 1.5 VCC 0.7 10.5 9.0 6.0 5.00 Unit 1.0 1.4 10.0 6.6 5.25 1.0 7 1.0 0.4 1.0 V mA mA kHz V V V V V V V V V µA mV µA V µA 9702 L Yification.change. A N I nal specubject to M I a fi are s L E is is not limits PR ;Th etric ces am i r Not me pa So MITSUBISHI <Digi./Ana.INTERFACE> M62501P,FP PWM IC for the synchronized deflection system control Terminal functional description and equivalent circuit Terminal No. Vcc •PWM output terminal •The PWM output synchronized with the TIN input. •Output "H" level = 10.5V typ (The output load current:-100mA,Vcc=12V) •Output "L" level = 0.7V Typ (The output load current:+100mA,Vcc=12V) 2 Vcc 1 PWM OUT 16 GND ~ 2 PWM OUT Function and terminal circumscription circuitry ~ 1 Symbol Power supply terminal Vcc 2 TIN 3 15 VREF •Trigger input terminal •Frequency range 15kHz ~ 150kHz •It takes in a start edge. 3 TIN TIN input waveform MIN 2.5V ~ MAX 1.0V 16 GND •Cosc terminal •It generates a saw wave by connecting capacitor between 4pin and GND. •Recommended capacitor value is 1000pF. 4 Cosc 5 Cagc •Cagc terminal •It sets up sensitivity of AGC by connecting capacitor between 5pin and GND. •Recommended capacitor value is 1µF. VREF 15 Cosc 4 ~ ~ ~ GND ( 4/ 9 ) 5 Cagc 16 9702 L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So Terminal No. Symbol POUT Function and terminal circumscription circuitry •The abnormal state detection output terminal •The output becomes "H" from "L" when an abnormality is detected in the OVP or UVP terminal. Then the PWM output terminal becomes "H" settlement, too. •Do OFF of power supply (Vcc) to remove latch of abnormal state. •In abnormal state detection ; Output "H" level = 10.5V typ (The output load current : no-load, Vcc=12V) Output "L" level = 1.5V typ (The output load current : -1mA, Vcc=12V) •In normal state ; Output "L" level = 0.4V typ (The output load current : +10mA, Vcc=12V) 2 Vcc 6 POUT 16 GND ~ 6 PWM IC for the synchronized deflection system control ~ •Over voltage protection of the control line (OVP) •Setting terminal voltage ; GND ≤ VOVP < VREF •Under voltage protection of the control line (UVP) •Setting terminal voltage ; GND ≤ VUVP < VOVP Vcc 7 8 OVP 2 8 UVP VREF 15 7 OVP UVP GND 16 To latch input Note:It is connected to GND when the abnormal detection terminal is not used. •The input terminal of a buffer Amp. (BI) •The output terminal of a buffer Amp. (BO) BI 9 ~ BO ( 5/ 9 ) 10 BO ~ 10 ~ ~ BI 2 ~ 9 Vcc 9702 L Yification.change. A N I nal specubject to M I a fi are s L E is is not limits PR ;Th etric ces am i r Not me pa So Terminal No. MITSUBISHI <Digi./Ana.INTERFACE> M62501P,FP PWM IC for the synchronized deflection system control Function and terminal circumscription circuitry Symbol •Positive input terminal of an Op-Amp. (IN+) •Negative input terminal of an Op-Amp. (IN-) 11 IN+ 12 IN- Vcc 2 ~ ~ IN+ 11 12 IN- ~ ~ •Output terminal of an Op-Amp. (FB) •Dead time control terminal (DTC) •It can do soft start during power-on under keeping time constant. 15 13 ~ FB ~ VREF ~ ~ DTC 14 Cosc 14 FB 13 DTC 4 ~ PWM comparator section 16 •Reference voltage terminal •5V output voltage (The terminal can begin to take outside connected load 5mA.) 15 Vcc GND 2 VREF 15 VREF + GND 16 16 GND •Ground terminal ( 6/ 9 ) 9702 L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So PWM IC for the synchronized deflection system control M62501 APPLICATION IN- IN+ R2 VR1 C2 C3 R1 R3 C5 C4 R4 D1 16 15 14 13 12 11 10 9 VCC VREF Latch VREF UVLO GEN AGC Vcc 1 2 3 4 Cosc 5 7 POUT OVP 8 Cagc TIN PWM OUT 6 UVP C1 C1,C2 Stabilization capacitors of Vcc and VREF. VR1 It is decided considering a load capacity of VREF. (A load capacity is approximately 5mA.) Recommended value is around 10kΩ. C3,D1 They are for the soft start function. A time constant is decided considering VR1. Cagc This capacitor is for stabilization of AGC. A larger capacitor improves a stability of the system, however a system response is degraded. Recommended value is around 1µF. Cosc This capacitor is for a saw wave generation. Recommended value is around 1000pF. R1,R2,R3,R4 C4,C5 They are for a gain setting of the error Amp. R2 should be several kΩ to dozens of kΩ to set a voltage gain 20dB to 40 dB at f = 1kHz, so that the feed back loop is stable. When the voltage gain is too low, it causes jitter. Recommended values of C4, C5 and R1 are ; C4 = dozens of pF to several hundreds pF C5 = several thousands pF to tens of thousands pF R1 = dozens of kΩ to several hundreds kΩ. *Annotation:Connect 7pin and 8pin terminal to GND when don't use under voltage protection (UVP). ( 7/ 9 ) 9702 L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So PWM IC for the synchronized deflection system control EXAMPLE OF APPLICATION CIRCUIT IN- 16 15 14 13 12 11 10 9 VCC VREF Latch VREF UVLO GEN AGC Vcc 1 2 3 4 Cosc Tin ( 8/ 9 ) 5 6 7 8 Cagc POUT 9702 L Yification.change. A N I nal specubject to M I a fi are s L MITSUBISHI <Digi./Ana.INTERFACE> E is is not limits PR ;Th etric ces am M62501P,FP i r Not me pa So PWM IC for the synchronized deflection system control Timing chart TIN DTC FB PWM OUT •PWM OUT ON Duty is fixed in the voltage of higher one between DTC terminal and FB terminal voltage. •Waveform at "H" was taken from "L", and having put TIN up (PWM output is fixed in "H", too when fix TIN terminal in"H".) TIN PWM OUT Approximately 150µsec •Waveform at "L" was taken from "H",and having put TIN up (PWM output is fixed in "L",too when fix TIN terminal in"L".) TIN PWM OUT ( 9/ 9 ) 9702