SM8134A Ver la hoja de datos (PDF) - Nippon Precision Circuits
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SM8134A Datasheet PDF : 19 Pages
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SM8134A
Electrical Characteristics
DC Characteristics
GND = 0V, VIN = 3.6V, Ta = 25°C unless otherwise noted.
Parameter
Pin Symbol
Condition
Rating
Unit
min
typ
max
Standby current
Quiescent current
Maximum output voltage
Maximum output current
Operating frequency
Internal circuit power-ON
reset time*1
VIN
ISTB Standby mode
–
0.01
1.00
µA
IDD1 ×1.0 mode, no load
VIN
IDD2 ×1.5 mode, no load
–
0.3
1.0
mA
–
1.7
4.0
mA
VOUT
VOUT ×1.5 mode VOUT maximum voltage
4.6
4.9
5.2
V
VOUT
IOUT ×1.5 mode
200
–
–
mA
C1M
fOSC ×1.5 mode switching frequency
650
750
850
kHz
VIN
TPOR
Time from when power is applied until
internal circuit reset
–
0.05
1.0
ms
Soft start time
DIN1 to 5
T SS
Time between EN signal falling edge
and LED turning ON
–
1.0
3.0
ms
LED drive pin leakage current DIN1 to 5 ILEAK1 to 5 Standby mode, VDIN1 to 5 = VIN
–
0.01
1.00
µA
LED drive current matching
DIN1 to 4
∆ ILED
×1.0 mode, matching between channels
with ILED1 to 4 = 20mA setting
–3.0
–
+3.0
%
LED drive current 1
DIN1 to 4 ILED1 to 4 ×1.0 mode, ILED1 to 4 = 20mA setting
19.0
20.0
21.0
mA
LED drive pin voltage 1*2
DIN1 to 4 VDIN1 to 4 ILED1 to 4 = 20mA setting
–
160
–
mV
LED drive current 2
LED drive pin voltage 2*2
DIN5
DIN5
I LED5
VDIN5
×1.5 mode, ILED5 maximum setting
IDIN5 maximum setting
140
150
160
mA
–
400
–
mV
Under voltage lockout
threshold*3
–
VUV VIN falling
1.6
1.9
2.2
V
Thermal protection circuit
operating temperature*1
–
TSD
–
170
–
°C
Thermal protection circuit
hysteresis*1
–
TSDHYS
–
20
–
°C
Logic-level input voltage
Logic-level input current
EN, SCK, VIH HIGH-level input voltage range
SDA
VIL LOW-level input voltage range
EN, SCK,
IIL
EN = SCK = SDA = VIN
SDA
IIH EN = SCK = SDA = GND
1.8
–
–
–
–
–
–1.0
–
–
V
0.6
V
1.0
µA
–
µA
*1. Design guaranteed value
*2. Pin voltage value which switching ×1.0 mode to ×1.5 mode when LED current shortage detection
*3. When UVLO is active, the output is stopped and internal register is reset.
SEIKO NPC CORPORATION —4
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