SM8135A
Electrical Characteristics
V
= 3.6V, GND = 0V, Ta = 25°C unless otherwise noted.
IN
Rating
typ
Parameter
Pin
Symbol
Condition
Unit
min
–
max
1.00
1.0
Standby current
VIN
I
Standby mode
0.01
0.3
µA
mA
mA
mA
V
STB
I
×1.0 mode, I
×1.5 mode, I
×2.0 mode, I
= 0mA
= 0mA
= 0mA
–
DD1
OUT
OUT
OUT
*1
Quiescent current
VIN
I
–
1.5
4.5
DD2
I
–
1.5
4.5
DD3
Output voltage
VOUT
VOUT
V
4.4
80
750
–
4.9
5.4
OUT
Maximum output current
Operating frequency
Internal power-ON reset time
Soft start time
I
×1.5/×2.0 mode
–
–
mA
kHz
ms
ms
µA
mA
OUT
C1M
f
×1.5/×2.0 mode switching frequency
1000
0.05
1.43
0.01
20.0
1250
1.00
3.00
1.00
22.0
OSC
*1
EN
T
Rest time from when power is applied
POR
DIN1 to 4
DIN1 to 4
DIN1 to 4
T
EN startup → I
rising edge
0.70
–
SS
LED
LED drive pin leakage current
LED drive current
I
Standby mode, DIN pin = 4.9V
Leak1 to 4
I
×1.0 mode
18.0
LED1 to 4
×1.0 mode,
relative accuracy between channels
LED drive current matching
DIN1 to 4
∆I
–5.0
–
+5.0
%
LED
at I
maximum setting
LED
LED drive pin voltage
LED drive current
DIN1 to 4
ISET
V
×1.0 mode
–
200
–
–
–
mV
DIN1 to 4
RSET
RSET minimum value
60
kΩ
*1
setting resistance
Time from when EN = LOW until
shutdown
*1
EN hold time
EN
T
0.50
1.00
1.50
ms
CEH
*1
PWM input pulse frequency
EN
EN
f
PWM dimming signal frequency
PWM dimming signal duty range
HIGH-level input voltage range
LOW-level input voltage range
Pull-down pin, EN pin = 3.6V
EN pin = 0V
10
10
1.4
–
–
–
100
100
–
kHz
%
PWM
*1
PWM input pulse duty
D
PWM
V
–
V
IH
Logic input voltage
EN
EN
V
–
0.3
10.0
–
V
IL
I
–
5.0
–
µA
µA
IH
Logic input current
I
–1.0
IL
*1. Design guaranteed value
SEIKO NPC CORPORATION —4
NPC [ NIPPON PRECISION CIRCUITS INC ]
