Mitsubishi M62281P, M62281FP Datasheet

MITSUBISHI SEMICONDUCTOR < STANDERD LINEAR IC >

note: GND terminal is connected to emitter terminal
as M62281FP in IC inside.
And Vcc terminal is connected to collector
terminal as M62281FP in IC inside.

GENERAL PURPOSE CURRENT MODE PWM CONTROL ICGENERAL PURPOSE CURRENT MODE PWM CONTROL IC

DESCRIPTION

M62281P/FP is designed as a high speed current mode
PWM control IC.
This small10 pin package contains many functions and
protection circuits allowing simpler peripheral circuit and
compact set design.
This IC can operate high speed switching (700kHz max.)
with high speed current sense comparator and current
limiting circuit.

FEATURES

700kHz applicable to MOS-FET

• Output current Io(peak) = ±1A

• Totem pole output
CURRENT SENSE terminal separate form CLM terminal makes
SMPS strong in noise.
High speed pulse-by-pulse current limiting
Timer type latch protection circuit with OVP(external reset is possible)
Soft start operation is possible (with dead time control)
Built-in OPAmp for feedback control (photo coupler can be driven)
Small start-up current 180µA
Start-up voltage 12.5V, Stop voltage 8.3V

APPLICATION

• Switching Regulator

• DC-DC converter

M62281P/FP

PIN CONFIGURATION (TOP VIEW)

VOUT

GND

CLM

CURRENT
SENSE

VOUT

EMIT

GND

CLM

CURRENT
SENSE

1
2

3
4

5

CF

1
2
3
4
5
6

CF

7

N.C 8

M62281P/FP

OUTLINE 10P2N-A

OUTLINE 14P4

10

9
8
7
6

14
13
12
11
10

9

Vcc

EA IN

EA OUT

CT

SOFT

COLLECT

Vcc
EA IN
EA OUT
CT

SOFT
N.C

CT
(OVP)

EA IN

Vcc CLM

UVLO

TIMER
LATCH

2.5V

EA
OUT

SOFT

DUTY
SET-UP

SENSE

CS
COMP

CLM
COMP

0.2V

OSC.

CFCURRENT

S

CLM
LATCH

R

R

PWM
LATCH

S

:note

COLLECT

VOUT

:note

EMIT

GND

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MITSUBISHI SEMICONDUCTOR < STANDERD LINEAR IC >

M62281P/FP

GENERAL PURPOSE CURRENT MODE PWM CONTROL IC

ABSOLUTE MAXIMUM RATINGS (Ta=25˚C, unless otherwise noted)

Symbol Parameter Condition Rating Unit

Vcc Supply voltage 36 V
IOUT Output current
VCT

Pd Power dissipation
Ktheta Thermal derating

CT terminal Supply voltage
EA IN terminal Supply voltageVEA IN
CLM terminal Supply voltageVCLM

CURENT SENSE terminal Supply voltageVCS

Operating temperatureTopr
Storage temperatureTstg

Ta≥25˚C

Continuous

P

FP

P

FP

36 V
10

- 0.3 ~ + 4.0

- 0.3 ~ + 5.8
1500

440

12

3.52

- 20 ~ + 85

- 40 ~ + 150

mA150

mW

mW/˚C

A1.0Peak

V
V
V

˚C
˚C

ELECTRICAL CHARACTERISTICS (Ta=25˚C, Vcc=14V, unless otherwise noted)

Limits

Block

CT

Symbol

Vcc Supply voltage range 35 V

∆Vcc

IccL
IccO Operating current

IccOFF Timer latch circuit current
VTHCTH

VTHCTL

ITIMEOFFIN

ITIMEOFFOUT

VB Reference voltage
IB Input bias current

AVO Open loop gain

fT Unity gain bandwidth
IOS Output source current
VOm + Output voltage (High)
VOm - Output voltage (Low)
AVCS CS term. input voltage gain

IB Input bias burrent

TPDCS CS term. delay time Delay time to output

Parameter Test condition

Operation stop voltage

Start-up and stop
voltage difference

Stand-by current Vcc=Vcc(START) - 0.5V

Vcc=14V
Vcc=Vcc(STOP) + 0.2V

CT term."H" threshold voltage
CT term."L" threshold voltage

CT term. input current
(timer off mode)

CT term. output current
(timer on mode)

Min

Vcc

(STOP)

11.5 12.5 13.5Vcc(START) Operation start-up voltage

7.6 8.3 9.0

3.5 4.2 5.1 V
90 180 270

7.5 13 19 mA

0.9 2.0 3.00.9

3.5 4.0 4.5

Typ Max

Unit

V
VVcc(STOP)

µA

mA
mA1.8 2.70.8

V
V0.4 0.7 1.0

µA70 115 165
µA-33 -14 -5

V2.4 2.5 2.6
nA-300 -100 0
dB70

MHz1

µA-460 -370 -240

V5.3 5.8 6.25

V0 0.2 0.35
V/V3.0
µA-5 -1
nS150

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MITSUBISHI SEMICONDUCTOR < STANDERD LINEAR IC >

M62281P/FP

GENERAL PURPOSE CURRENT MODE PWM CONTROL IC

ELECTRICAL CHARACTERISTICS (Ta=25˚C, Vcc=14V, unless otherwise noted)

Block

C
L
M

S
O
F
T

OSC.

Symbol

VTHCLM

Parameter Test condition

CLM term. threshold voltage

IOUTCLM CLM term. output current
TPDCLM

VSOFT(0%)
VSOFT(50%)
Duty Max

ISOFT
foscmax
fosc
VOSCH
VOSCL
∆VOSC

CLM term. delay time

Soft term. input voltage range
to set 0% duty

Soft term. voltage
when 50% duty

Maximum duty
Soft term. input current

Maximum oscillation frequency

Oscillation frequency

Oscillation upper limit voltage
Oscillation lower limit voltage

Oscillation voltage

VOL1

Output low voltage

VOL2
VOH1

Output high voltage

VOH2
TRISE

Output voltage rise time
Output voltage fall timeTFALL

VCLM=0V
Delay time to output

Soft term. input voltage range
to set 0% duty

CF= 270pF
CF= 270pF
CF= 270pF
CF= 270pF
Vcc=14V, Io=10mA
Vcc=14V, Io=100mA
Vcc=14V, Io=-10mA
Vcc=14V, Io=-100mA
No load
No load

Limits

Min

Typ Max

-270 -200 -140 µA

0 1.0 V

2.7 V

-50 -43 -36

130 180 230 KHz

Unit

mV180 200 220

nS100

KHz700

nS50
nS35

%83 90 97

V3.2 3.6 4.0

V1.2 1.4 1.6

V1.9 2.2 2.5

V0.04 0.4

V0.3 1.4

V12.0 12.7

V11.5 12.5

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