SM8131B00B Ver la hoja de datos (PDF) - Nippon Precision Circuits
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SM8131B00B Datasheet PDF : 21 Pages
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SM8131B
Electrical Characteristics
VIN = 3.6V, GND = 0V, Ta = 25°C unless otherwise noted
Parameter
Pin Symbol
Condition
Rating
Unit
min
typ
max
Supply voltage range
Standby current
Quiescent current
Output voltage
Maximum output current
Operating frequency
Internal power-ON reset time*1
VIN
VIN
VIN
VOUT
VOUT
C1M
EN
VIN0
VIN
I STB
IDD1
IDD2
VOUT
I OUT
f OSC
TPOR
×1.0 mode, IOUT = 0mA
×1.5 mode, IOUT = 120mA
Power-save mode
×1.0 mode, IOUT = 0mA
×1.5 mode, IOUT = 0mA
×1.5 mode, IOUT = 120mA
×1.5 mode
×1.5 mode switching frequency
Time from when power is applied
until internal circuits reset
2.7
3.6
4.6
V
3.3
3.6
4.6
V
–
0.01
1.00
µA
–
0.7
1.5
mA
–
2.0
4.0
mA
4.0
4.2
4.4
V
–
120
–
mA
650
750
850
kHz
–
0.05
1.0
ms
Soft start time
DIN1 to 6 TSS EN startup → ILED rising edge
–
1.3
5.0
ms
LED drive pin leakage current DIN1 to 6 Ileak1 to 6 Power-save mode, DIN pin = 4.2V
–
0.01
1.00
µA
LED drive current
DIN1 to 6 ILED1 to 6 ×1.0 mode, RSET = 20kΩ
19.4
20.0
20.6
mA
LED drive current
setting resistance*1
ISET
RSET RSET maximum value
–
–
50
kΩ
Input signal frequency*1
EN1/2
fENIN
EN input pulse duty 50%,
maximum signal input frequency
–
–
150
kHz
Input pulse width*1
Hold time
TENH Minimum EN pulse HIGH-level width
3.0
–
EN1/2
TENL Minimum EN pulse LOW-level width
3.0
–
–
µs
–
µs
EN1/2
TCEH
Time from when EN1 = EN2 = LOW
until LED drive circuit shutdown
1.17
1.37
1.63
ms
Input voltage
Input current
EN1/2,
SEL1/2
EN1/2
VIH HIGH-level input voltage range
VIL LOW-level input voltage range
IIH Pull-down pin, EN pin = 3.6V
1.8
–
–
V
–
–
0.6
V
–
5.0
10.0
µA
*1. Design guaranteed value
NIPPON PRECISION CIRCUITS INC.—4
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