MP171 –NON-ISOLATED OFFLINE REGULATOR
ELECTRICAL CHARACTERISTICS
VCC = 5.5 V, TJ = -40°C~125°C, min and max are guaranteed by characterization, typical is tested
under 25°C, unless otherwise specified.
Parameter
Symbol Condition
Min
Typ
Max Units
Start-up Current Source and Internal MOSFET (DRAIN)
Internal regulator supply current
DRAIN leakage current
Breakdown voltage
Iregulator VCC = 4 V; VDrain = 100 V
2.2
4.1
10
6
mA
μA
V
ILeak
V(BR)DSS
Ron
VCC = 5.8 V; VDrain = 400 V
TJ = 25°C
17
700
On resistance
TJ = 25°C
20
25
Ω
Supply Voltage Management (VCC)
VCC level (increasing) where the internal
regulator stops
VCCOFF
VCCON
5.4
5.7
6
V
VCC level (decreasing) where the
internal regulator turns on
5.1
130
3
5.5
250
3.4
5.8
V
mV
V
VCC regulator on and off hysteresis
VCC level (decreasing) where the IC
stops
VCCstop
VCCpro
3.6
2.8
VCC level (decreasing) where the
protection phase ends
2
2.5
V
Internal IC consumption
ICC
ICC
fs = 36 kHz, D = 64%
720
200
24
μA
µA
μA
Internal IC consumption (no switching)
Internal IC consumption, latch-off phase ICCLATCH VCC = 5.3 V
16
Internal Current Sense
Peak current limit
ILimit
τLEB1
ISCP
TJ = 25°C
TJ = 25°C
85
105
350
300
180
125
400
mA
ns
Leading-edge blanking
SCP threshold
220
mA
ns
Leading-edge blanking for SCP (1)
Feedback Input (FB)
Minimum off time
τLEB2
7.5
13
10
18
12.5
23
μs
μs
τminoff
τmanon
Maximum on time
Primary MOSFET feedback turn-on
threshold
VFB
2.45 2.55 2.65
V
OLP feedback trigger threshold
OLP delay time
VFB_OLP
1.64 1.74 1.84
175
V
ms
V
fs = 36 kHz
τOLP
VOLD
Open-loop detection
0.4
0.5
0.6
Thermal Shutdown
Thermal shutdown threshold (1)
Thermal shutdown recovery hysteresis (1)
150
30
°C
°C
NOTE:
1) This parameter is guaranteed by design.
MP171 Rev. 1.0
9/30/2015
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