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M62281P/FP
M62281P/FP
GENERAL PURPOSE CURRENT MODE PWM CONTROL
IC
GENERAL 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.
PIN CONFIGURATION (TOP VIEW)
VOUT
1
GND
CLM
2
3
10
Vcc
9
8
7
EA IN
EA OUT
CT
FEATURES
CURRENT
4
SENSE
CF
5
700kHz applicable to MOS-FET
• Output current Io(peak) = ±1A
OUTLINE 10P2N-A
• Totem pole output
VOUT
1
14
CURRENT SENSE terminal separate form CLM terminal makes
SMPS strong in noise.
13
EMIT
2
High speed pulse-by-pulse current limiting
GND
3
12
Timer type latch protection circuit with OVP(external reset is possible)
Soft start operation is possible (with dead time control)
11
CLM
4
Built-in OPAmp for feedback control (photo coupler can be driven)
CURRENT
5
10
Small start-up current
180µA
SENSE
Start-up voltage 12.5V, Stop voltage 8.3V
CF
6
9
6
SOFT
COLLECT
Vcc
EA IN
EA OUT
CT
SOFT
APPLICATION
• Switching Regulator
• DC-DC converter
N.C
7
OUTLINE 14P4
8
N.C
Vcc
CLM
UVLO
CLM
COMP
CT
(OVP)
TIMER
LATCH
0.2V
S
CLM
LATCH
R
:note
COLLECT
CS
COMP
V
OUT
R
PWM
LATCH
S
:note
EA IN
EMIT
2.5V
OSC.
GND
EA
OUT
SOFT
DUTY
SET-UP
CURRENT C
F
SENSE
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.
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