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SM8122A Ver la hoja de datos (PDF) - Nippon Precision Circuits

Número de pieza
componentes Descripción
Lista de partido
SM8122A
NPC
Nippon Precision Circuits  NPC
SM8122A Datasheet PDF : 13 Pages
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SM8122A
SPECIFICATIONS
Absolute Maximum Ratings
Parameter
Supply voltage range
Input voltage range
SW output voltage range
SW input current
Power dissipation
Operating temperature range
Storage temperature range
Symbol
Rating
Unit
V DD
0.3 to 6.5
V
V IN
VSS – 0.3 to VDD + 0.3
V
V SW
–0.3 to 30
V
I SW
500
mA
PD
250 (Ta = 25°C)
mW
Topr
–40 to 85
°C
T stg
55 to 125
°C
Electrical Characteristics
VDD = 3.6V, VSS = 0V, Ta = 25°C unless otherwise noted
Parameter
Pin
Symbol
Condition
Rating
Unit
min
typ
max
Supply voltage
VDD
V DD
2.3
3.6
5.5
V
Maximum output voltage
SW
VOUT
25
V
Standby current
VDD
I STB
VCE = 0V
1.0
µA
Quiescent current
VFB = 1.0V
VDD
I DD
VFB = 0V
200
400
µA
820
1600
µA
SW-Tr ON resister
SW
RON ISW = 100mA, VDD = 3.6V
2.0
3.0
SW-Tr leak current
SW
ILEAK VSW = VDD
1.0
µA
Switching frequency
SW
fOSC VFB = 0V
1.8
2.0
2.2
MHz
Maximum duty
SW
Duty VFB = 0V
75
85
90
%
Input voltage
VIH
CE
VIL
2.0
V
0.6
V
CE
ICE
VCE = 3.6V
5.0
10
µA
Input current
FB
IFB
VFB = 0.5V
–1.0
1.0
µA
VOUT
IVOUT VOUT = 25V
60
82
120
µA
Soft-start time
TSS1 Switching stop time
SW
10
20
70
µs
TSS2 Maximum duty restriction time
500
µs
FB voltage
FB
V FB
0.49
0.50
0.51
V
Coil inductance
SW
L SW
4.7
10
µH
Over voltage detection
V OV
VOUT
Over voltage detection release
VOVR
25
30.5
36
V
23
28.5
V
NIPPON PRECISION CIRCUITS INC.—4

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