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PDF M62213P Data sheet ( Hoja de datos )
| Número de pieza | M62213P | |
| Descripción | GENERAL PURPOSE HIGH SPEED PWM CONTROL IC | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI SEMICONDUCTOR < STANDARD LINEAR IC >
M6M22621231P3P/F/FPP
GENERAGLEPNUERRAPLOPSUERPHOIGSEHHSIGPHEESPDEPEDWPMWCMOCNONTTRROOLL IC
DESCRIPTION
M62213P/FP is designed as a general purpose high-speed
PWM control IC.
This small 10 pin package contains many function and
protection circuits allowing simpler peripheral circuits and
compact set design.
This IC can operate high speed switching (700kHz Max)
with high speed PWM comparator and current limiting circuit.
FEATURES
• 700kHz operation to MOS- FET
• Output current Io= ±1A
• Totem pole output
• Timer type latch protection circuit with OVP
• Soft start operation is possible (with dead time control)
• Built-in OPAmp for feedback control
(photo coupler can be driven)
• High speed pulse-by-pulse current limiting
• Small size 10-pin SOP package
APPLICATION
• Switching Regulator
• DC-DC Converter
PIN CONFIGURATION (TOP VIEW)
VOUT 1
GND 2
CLM 3
RF 4
CF 5
10 VCC
9 EA IN
8 EA OUT
7 SOFT
6 CT
OUTLINE 10P2N-A
VOUT 1
14 COLLECT
EMIT 2
GND 3
13 VCC
12 EA IN
CLM 4
RF 5
CF 6
11 EA OUT
10 CT
9 SOFT
N.C 7
OUTLINE 14P4
8 N.C
VCC
CLM
CT
(OVP)
UVLO
TIMER
LATCH
2.5V
CLM
COMP
0.2V
S
CLM
LATCH
R
PWM
COMP
S
PWM
LATCH
R
OSC.
:note
COLLECT
VOUT
:note
EMIT
GND
EA IN
EA OUT SOFT RF CF note: GND terminal is connected to emitter terminal
as M6213FP in IC inside.
(DTC)
And Vcc terminal is connected to collector
terminal as M6213FP in IC inside.
(1/9)
1 page  
MITSUBISHI SEMICONDUCTOR < STANDARD LINEAR IC >
M62213P/FP
GENERAL PURPOSE HIGH SPEED PWM CONTROL IC
In Fig. 3-1, AC gain is represented as:
| Av | = | RF/ RIN |
Proper gain setting is about 40dB.
RF should be 52KΩ or more due to the current source capability of error amp.
R1, R2 should meet the condition as below so that the voltage of EAIN terminal should not be over 5V.
R2 * Vcc/ (R1 + R2) ≤ 5V
Due to the input impedance of EAIN terminal, the current in R1, R2 should be less than several mA.
(2) CT(OVP) TERMINAL
Timer type latch circuit works as follows.
Constant charge current flows out from CT terminal to the external capacitor when CLM is operative.
When the voltage of CT terminal rises up to over 4.0V(typ.), the latch circuit operates to make
functions of this IC inoperative. Inoperative status is sustained until supply voltage becomes less than
stop voltage. The value for start-up register has to be set so that the current over 1.8mA(typ.) can flow
the resistor because the stop status has to be kept by the current in start-up resistor R1 shown in
application circuit.
When timer latch circuit is operative, supply current increases at high voltage as shown in Fig.4 to
avoid the damage caused by unnecessarily increased supply voltage.
Inoperative status goes back to operation by forcibly decreasing the voltage of CT terminal to less
than 0.7V.
3.0
2.5 Latch reset
8.3V
2.0
1.5
1.0
0.5
0 5 10 15 20 25 30 35
Supply voltage : Vcc (V)
Fig.4 Supply current/voltage chracteristics (at timer latch)
(5/9)
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet M62213P.PDF ] | |
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