View M62502FP_287163.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
GENERAL DESCRIPTION
The M62502 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 and a horizontal output correction of CRT monitors because of its following circuits and functions; * Under Voltage Lock Out circuit (UVLO) * Soft-start function
PIN CONFIGURATION(TOP VIEW)
PWM OUT 1 Vcc TIN 2
16 GND 15 VREF
M62502FP
3
14 DTC 13 FB 12 IN - 11 IN + 10 Duty 9 DOUT
Cosc 4 Cagc1 5 Ragc 6 Cagc2 7 2fh 8
FEATURES * PWM output synchronized with external signals * Wide PWM control frequency 15kHz to 150kHz * Soft start function * Low voltage malfunction protection circuit start Vcc > 9V stop Vcc < 6V APPLICATION * C R T display monitor
Outline
16P2N-A
BLOCK DIAGRAM
GND
16
VREF
15
DTC FB
14 13
IN12
IN+
11
Duty Adj
10
DRIVE OUTPUT
9
VCC
VREF
Amp
Duty cont
Comp
Wind comp
Comp
UVLO
GEN
AGC GEN AGC
7
Edge detection
1
2
3
4
5
6
8
PWM OUT
VCC
TIN
COSC
CAGC1
RAGC
CAGC2
2fh
(1/7)
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control Functional Description
PWM output Power supply Trigger input Setting oscillating frequency AGC setting AGC Current setting resistor connected to this terminal AGC setting Double velocity reshuffle Drive output Duty regulation Positive input of Op-Amp. Negative input of Op-Amp. Output of Op-Amp. Dead time control (Soft start function) Output of reference voltage (5V) Ground
Terminal Number and The facility PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol
PWM OUT VCC TIN COSC Cagc1 RAGC Cagc2 2fh DOUT Duty IN+ INFB DTC VREF GND
Absolute Maximum Rating (Ta=25C,unless otherwise noted) Symbol VCC VOUT IOUT Vd Id VICM VID Pd K Topr Tstg Parameter
Supply voltage Output voltage Output current Drive output voltage Drive output current
Error amplifier input common mode voltage range Error amplifier input common mode voltage
Conditions
Ratings
15 15 100 15 20 -0.3 to VCC VCC 650
Unit
V V mA V mA V V mW
mW/C C C
Power dissipation Thermal derating ratio
Operating ambient temperature
Ta25C
5.2 -20 to +75 -40 to +150
Storage temperature
(2/7)
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
ELECTRICAL CHARACTERISTICS (Vcc=12V, TIN=40kHz, Ta=25C, unless otherwise noted)
Block
Symbol VCC ICC VREF Reg-in Reg-L TCVREF IREF MAX IS VIO IIb IIO VICM AV SR VOR Isink Isourse fOSC VOSC H VOSC L VTIN H VTIN L Vsat L Vsat H VTH ON VTH OFF IDuty
Parameter
Range of power supply
Test conditions
Output off mode
Min
VCC OFF 4.80
Limits Typ
25 5.00 1.0 2.0 0.01 -30 -30
Max
14 5.20 10 20
Unit
V mA V mV mV
%/C
Reference voltage section
Circuit current Reference voltage Input regulation Load regulation
Reference voltage thermal coefficient Maximum reference current
Short-circuit current Input offset voltage Input bias current Input offset current
Common mode input voltage range Open loop transmission gain
7 -100 -100 -0.3 70 0.3 10 15 3.5 1.5 2.5 IO=100mA IO=-100mA 0.7 10.5 9.0 6.0 -1.3 5.0 VCC 1.0 1.4 10.0 6.6 110 4 VREF-1.5 -10 150 100 VCC-2
Error Amp.
mA mA mV nA nA V dB
V/s
Slew rate Output voltage range Output sink current Output source current Oscillation frequency
The oscillator waveform bound voltage The oscillator waveform lower limit voltage
V mA mA kHz V V V V V V V V A
sec
Oscillator
High level of TIN Low level of TIN
Output saturation voltage L Output saturation voltage H
PWM output section
UVLO section Duty adj section UVP section
ON threshold voltage OFF threshold voltage
Input current Duty max Maximum ON duty
Input offset voltage
UVP terminal input current
VUVPO IIN UVP fh reshuffle Ifh section Vfh
VDuty=2.5V VDuty=3V Id=10mA VDO=12V Vhf=5V
9.5 8.0 5.4 -6.5
0.4
V A A V
fh terminal current fh reshuffle voltage
0.4VREF
330 0.5VREF
1.0 430 0.6VREF
(3/7)
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
Function and internal circuit
Terminal functional description and equivalent circuit
Terminal No.
Symbol
1
PWM OUT
PWM output * PWM output synchronized with the TIN input is available. * Output "H" level = 10.5V typ (The output current:-100mA,Vcc=12V) * Output "L" level = 0.7V Typ (The output current:+100mA,Vcc=12V)
2
Vcc
1
PWM OUT
16
GND
2
Vcc
Power supply
Vcc 2 15 VREF
Trigger input * Frequency range 15kHz to 150kHz * It is taken on a leading edge. TIN input waveform
TIN 3
3
TIN
MIN 2.5V MAX 1.0V
16
GND
4 5
Cosc Cagc1
A saw-wave oscillator timing setting (Cosc) * A saw-wave is generated by connecting the capacitor between pin4 and GND. * Recommended capacitor value is 1000pF. Setting AGC sensitivity (Cagc) * The sensitivity of AGC circuit is set by connecting the capacitor between pin5 and GND. * Recommended capacitor value is 1F.
VREF 15
Cosc
4
~ ~
5 Cagc1
~
GND 16
(4/7)
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
Function and internal circuit
VREF
Terminal No.
Symbol
6
Ragc
AGC current setting * The resistor is connected between pin6 and GND for setting AGC current flowing in DOUT circuit.
Ragc 6
VREF
Setting AGC sensitivity * The sensitivity of AGC is set by connecting the capacitor between pin7 and GND. * Recommended capacitor value is 1F.
7
Cagc2
Cagc2 7
~~
Drive output * Open collector circuit.
VREF
9
DOUT
9 DOUT
VREF
The duty adjustment of drive output
10
Duty
Duty
10
(5/7)
~
8
2fh
Frequency selection VREF * The frequency of drive output is alternated between just(fh) and doubled(2fh) one. 2fh 8 OPEN, GND : fh VREF : 2fh
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
Function and internal circuit
Vcc 2
Terminal No.
Symbol
11
IN+
Positive input of Op-Amp (IN+) Negative input of OP Amp (IN-)
12
IN-
IN+ 11
12 IN-
Output of Op-Amp (FB) Dead time control (DTC) * A soft start function is available during power-on by adopting a time constant.
15
VREF
13
FB
DTC 14 Cosc FB 13 4
14
DTC
PWM comparator section
16
GND
Reference voltage terminal * 5V is output via this terminal. A current capability is 5mA.
Vcc
2
15
VREF
+
15 VREF
GND 16
16
GND
* Ground
(6/7)
Not me pa So
P ces;Thametri i r
I M final s subje E L is noct lamits are i R is
Y n. e. A L cificacttioto chang I N pe
MITSUBISHI (Dig./Ana. INTERFACE)
M62502FP
PWM IC for the synchronized deflection system control
ININ+
M62502 application
VR1 C2 D1
16 15 14
R2 C3 R1 C5 C4
13 12 11
R3
Duty
Vcc R5
R4
10 9
DOUT
VCC
VREF
Duty cont
Amp
UVLO GEN AGC GEN AGC
Edge detection
Comp Comp
Wind comp
Vcc
1 2 3 4 5 6 7 8
Cosc Cagc1
Ragc
Cagc2
PWM OUT
TIN
2fh
C1 C1,C2 VR1 --------------------These capacitors are for stabilization of Vcc and VREF. It is decided considering a current capability of VREF. (The capability is about 5mA.) Recommended value is around 10k
C3,D1
----------- They are for a soft start function. A time constant is decided considering VR1.
Cagc1,2 ----------- These capacitors are for stabilization of AGC circuit. A larger capacitor improves a stability of the system, however a system response is degraded. Recommended capacitor value is around 1F. Cosc ---------This capacitor is for the saw-wave generation. Recommended capacitor value is around 1000pF.
R1,R2,R3,R4 ----- They are for the gain setting of the error Amp. R2 should be several k to dozens of k C4,C5 to set a voltage gain 20dB to 40dB 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 k to several hundreds k. Ragc R5 ----------- This resistor is for the AGC setting of DOUT. Recommended value is 27k. ----------- It is a pull-up resister of DOUT output, because DOUT is configured by the open collector circuit. Recommended value is several k.
(7/7)

▲Up To Search▲

Price & Availability of M62502FP

	To Download M62502FP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .