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M51995FP

Description
switching regulator control
CategoryPower/power management    The power supply circuit   
File Size458KB,27 Pages
ManufacturerMitsubishi
Websitehttp://www.mitsubishielectric.com/semiconductors/
Download Datasheet Parametric Compare View All

M51995FP Overview

switching regulator control

M51995FP Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerMitsubishi
Parts packaging codeSOIC
package instructionSOP, SOP20,.3
Contacts20
Reach Compliance Codeunknow
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage36 V
Minimum input voltage12 V
JESD-30 codeR-PDSO-G20
JESD-609 codee0
Number of functions1
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-30 °C
Maximum output current2 A
Nominal output voltage2.5 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP20,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Certification statusNot Qualified
Maximum supply current (Isup)21 mA
surface mountYES
Switch configurationSINGLE
Maximum switching frequency500 kHz
technologyBIPOLAR
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
MITSUBISHI (Dig./Ana. INTERFACE)
M51995AP/FP
SWITCHING REGULATOR CONTROL
DESCRIPTION
M51995A is the primary switching regulator controller which is
especially designed to get the regulated DC voltage from AC power
supply.
This IC can directly drive the MOS-FET with fast rise and fast fall
output pulse.
Type M51995A has the functions of not only high frequency OSC
and fast output drive but also current limit with fast response and
high sensibility so the true "fast switching regulator" can be
realized.
It has another big feature of current protection to short and over
current,owing to the integrated timer-type protection circuit,if few
parts are added to the primary side.
The M51995A is equivalent to the M51977 with externally re-
settable OVP(over voltage protection)circuit.
COLLECTOR
V
OUT
EMITTER
VF
ON/OFF
OVP
DET
F/B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PIN CONFIGURATION (TOP VIEW)
Vcc
CLM+
CLM-
GND
CT
T-OFF
CF
T-ON
Outline 16P4
FEATURES
500kHz operation to MOS FET
•Output current...............................................................±2A
•Output rise time 60ns,fall time 40ns
•Modified totempole output method with small through current
Compact and light-weight power supply
•Small start-up current............................................90µA typ.
•Big difference between "start-up voltage" and "stop voltage"
makes the smoothing capacitor of the power input section small.
Start-up threshold 16V,stop voltage 10V
•Packages with high power dissipation are used to with-stand the
heat generated by the gate-drive current of MOS FET.
16-pin DIP,20-pin SOP 1.5W(at 25°C)
Simplified peripheral circuit with protection circuit and built-in
large-capacity totempole output
•High-speed current limiting circuit using pulse-by-pulse
method(Two system of CLM+pin,CLM-pin)
•Protection by intermittent operation of output over current......
..........................................................Timer protection circuit
•Over-voltage protection circuit with an externally re-settable
latch(OVP)
•Protection circuit for output miss action at low supply
voltage(UVLO)
High-performance and highly functional power supply
•Triangular wave oscillator for easy dead time setting
HEAT SINK PIN
6
15
14
13
12
11
COLLECTOR
V
OUT
EMITTER
VF
1
2
3
4
5
20
19
18
17
16
Vcc
CLM+
CLM-
GND
HEAT SINK PIN
ON/OFF
OVP
DET
F/B
7
8
9
10
CT
T-OFF
CF
T-ON
Outline 20P2N-A
Connect the heat sink pin to GND.
APPLICATION
Feed forward regulator,fly-back regulator
RECOMMENDED OPERATING CONDITIONS
Supply voltage range............................................12 to 36V
Operating frequency.................................less than 500kHz
Oscillator frequency setting resistance
•T-ON pin resistance R
ON
...........................10k to 75kΩ
•T-OFF pin resistance R
OFF
..........................2k to 30kΩ
( 1 / 27 )

M51995FP Related Products

M51995FP M51995 M51995AP
Description switching regulator control switching regulator control switching regulator control
Is it Rohs certified? incompatible - incompatible
Maker Mitsubishi - Mitsubishi
Parts packaging code SOIC - DIP
package instruction SOP, SOP20,.3 - DIP, DIP16,.3
Contacts 20 - 16
Reach Compliance Code unknow - unknow
ECCN code EAR99 - EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER - SWITCHING CONTROLLER
control mode VOLTAGE-MODE - VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION - PULSE WIDTH MODULATION
Maximum input voltage 36 V - 35 V
Minimum input voltage 12 V - 12 V
JESD-30 code R-PDSO-G20 - R-PDIP-T16
JESD-609 code e0 - e0
Number of functions 1 - 1
Number of terminals 20 - 16
Maximum operating temperature 85 °C - 85 °C
Minimum operating temperature -30 °C - -30 °C
Maximum output current 2 A - 2 A
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY
encapsulated code SOP - DIP
Encapsulate equivalent code SOP20,.3 - DIP16,.3
Package shape RECTANGULAR - RECTANGULAR
Package form SMALL OUTLINE - IN-LINE
Certification status Not Qualified - Not Qualified
surface mount YES - NO
Switch configuration SINGLE - SINGLE
Maximum switching frequency 500 kHz - 500 kHz
technology BIPOLAR - BIPOLAR
Temperature level OTHER - OTHER
Terminal surface Tin/Lead (Sn/Pb) - Tin/Lead (Sn/Pb)
Terminal form GULL WING - THROUGH-HOLE
Terminal pitch 1.27 mm - 2.54 mm
Terminal location DUAL - DUAL
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