SM8135B Ver la hoja de datos (PDF) - Nippon Precision Circuits
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SM8135B Datasheet PDF : 19 Pages
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SM8135B
Electrical Characteristics
VIN = 3.6V, GND = 0V, Ta = 25°C unless otherwise noted.
Parameter
Pin Symbol
Condition
Rating
Unit
min
typ
max
Standby current
VIN
ISTB Standby mode
–
0.01
1.00
µA
Quiescent current 1
Quiescent current 2*1
IDD1 ×1.0 mode, IOUT = 0mA
VIN
IDD2 ×1.5 mode, IOUT = 0mA
–
0.3
1.0
mA
–
1.5
4.5
mA
Quiescent current 3
IDD3 ×2.0 mode, IOUT = 0mA
–
1.5
4.5
mA
Output voltage
VOUT
VOUT
4.4
4.9
5.4
V
Maximum output current
VOUT
IOUT ×1.5/×2.0 mode
80
–
–
mA
Operating frequency
C1M
fOSC ×1.5/×2.0 mode switching frequency 750
1000
1250
kHz
Internal power-ON reset time*1
EN
TPOR Rest time from when power is applied
–
0.05
1.00
ms
Soft start time
DIN1 to 4 TSS EN startup → ILED rising edge
0.70
1.43
3.00
ms
LED drive pin leakage current DIN1 to 4 ILeak1 to 4 Standby mode, DIN pin = 4.9V
–
0.01
1.00
µA
LED drive current
DIN1 to 4 ILED1 to 4 ×1.0 mode
18.0
20.0
22.0
mA
×1.0 mode,
LED drive current matching
DIN1 to 4 ∆ILED relative accuracy between channels –5.0
–
+5.0
%
at ILED maximum setting
LED drive pin voltage
DIN1 to 4 VDIN1 to 4 ×1.0 mode
–
200
–
mV
LED drive current
setting resistance*1
ISET
RSET RSET minimum value
60
–
–
kΩ
EN hold time*1*2
EN
TCEH
Time from when EN = LOW until
shutdown
0.50
1.00
1.50
ms
EN HIGH-level input time*1
EN
TENH
EN input pulse HIGH-level minimum
pulsewidth
3.0
–
–
µs
EN LOW-level input time*1*2
EN
TENL
EN input pulse LOW-level pulsewidth
range
3.0
–
500
µs
Logic input voltage
Logic input current
*1. Design guaranteed value
*2.
When shutdown
EN
VIH HIGH-level input voltage range
EN
VIL LOW-level input voltage range
IIH Pull-down pin, EN pin = 3.6V
EN
IIL
EN pin = 0V
> 1.5msec
1.4
–
–
V
–
–
0.3
V
–
5.0
10.0
µA
–1.0
–
–
µA
When dimming
EN
3µsec to 500µsec
SEIKO NPC CORPORATION —4
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