MP157 –SMALLEST ENERGY EFFICIENT OFF-LINE REGULATOR WITH EXTENDED POWER RANGE
ELECTRICAL CHARACTERISTICS
VCC = 5V, TA = 25C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
Start-up Current Source (Drain Pin)
Internal regulator supply current
Leakage Current from Pin Drain
Break Down Voltage
Iregulator VCC=4V;VDrain=100V
2.5
--
3.5
10
--
4.5
25
--
mA
μA
V
ILeak
VCC=5V;Vdarin=400V
V(BR)DSS
500
Supply Voltage Management (VCC Pin)
VCC Increasing Level at which the
internal regulator stops
VCCOFF
4.5
4.6
4.9
V
VCC Decreasing Level at which the
internal regulator Turns-On
VCCON
4.3
--
4.45
230
4.7
--
V
mV
V
VCC Regulator on and off Hysteresis
VCC Decreasing level at which the IC
stops working
VCCstop
VCCpro
3.2
3.35
3.5
VCC Decreasing Level at which the
protection Phase Ends
2.05
2.35
2.65
V
VCC=4.6V, Fs=45kHz
Duty= 40%
Internal IC Consumption
ICC
ICC
--
--
--
--
--
500
165
--
μA
uA
μA
Internal IC Consumption (No Switch)
VCC=4.6V
Internal IC Consumption, Latch off
Phase
ICCLATCH VCC=5V
16
Internal MOSFET (Drain Pin)
Break Down Voltage
VBRDSS
Ron
500
--
--
--
--
V
On-State resistance
10
ꢀ
Internal Current Sense
Peak Current Limit
ILimit
500
--
640
400
780
--
mA
ns
Leading edge blanking
TLEB1
SCP point
ISCP
--
--
900
180
1200
--
mA
ns
Leading edge blanking for SCP (5)
Feedback input (FB Pin)
Minimum off time
TLEB2
Tminoff
VFB
10.6
2.45
13.1
2.55
15.6
2.65
us
V
Feedback Threshold to turn on the
primary MOSFET
Feedback Threshold to trigger the
OLP
VFB_OLP
1.6
1.7
1.8
V
Over Load Protection Delay time
Open loop detection
TOLP
VOLD
Fs=37kHz
--
--
150
60
--
--
ms
mV
Thermal Shutdown
Thermal shutdown threshold (5)
--
150
--
ºC
Notes:
5) Guarantee by Characterization
MP157 Rev. 1.04
6/27/2016
www.MonolithicPower.com
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5
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