SM8136A Datasheet, PDF (4/15 Pages) Nippon Precision Circuits Inc – White LED Driver IC

SM8136A
Electrical Characteristics
V_IN = 3.6V, GND = 0V, Ta = 25°C unless otherwise noted.
Parameter
Pin
Symbol
Condition
Rating
Unit
min
typ
max
Standby current
VIN
I _STB
Standby mode
–
0.01
1.00
µA
Quiescent current 1
Quiescent current 2
I_DD1
×1.0 mode, I_OUT = 0mA
VIN
I _DD2
×1.5 mode, I_OUT = 0mA
–
0.3
1.0
mA
–
1.0
2.0
mA
Output voltage
×1.5 mode, V_IN = 3.6V, I_OUT = 0mA
4.5
5.0
5.5
V
VOUT
V_OUT
×1.5 mode, V_IN = 3.0V, I_OUT = 60mA
–
3.5
–
V
Maximum output current
VOUT
I _OUT
×1.5 mode
60
–
–
mA
Operating frequency
C1M
Internal power-ON reset time^*1
EN
f_OSC ×1.5 mode switching frequency
800
T_POR Rest time from when power is applied
–
1000
1200
kHz
0.05
1.00
ms
Power-ON rise time
EN, VIN
T _PR
EN = VIN, time from 0.3V to 2.7V
–
–
50
µs
Soft start time
DIN1 to 3
T _SS
EN startup → I_LED rising edge
–
2.00
3.00
ms
LED drive pin leakage current DIN1 to 3 I_{Leak1 to 3} Standby mode, DIN pin = 5.0V
–
0.01
1.00
µA
LED drive current
DIN1 to 3 I_{LED1 to 3} ×1.0 mode (3-channel average value) 18.0
20.0
22.0
mA
LED drive current accuracy
DIN1 to 3
∆I_LED
×1.0 mode, relative accuracy between
channels at I_LED maximum settings
–5.0
–
+5.0
%
LED drive pin voltage
DIN1 to 3 V_{DIN1 to 3} ×1.0 mode, I_LED = 20mA
–
120
–
mV
×1.0 ↔ ×1.5 mode switching
threshold voltage
VIN V_{TH1.0 to 1.5} VF (LED) = 3.3V, I_LED = 20mA
–
3.46
–
V
EN hold time^*1*2
EN
T_CEH
Time from when EN = LOW until
shutdown
0.50
1.00
1.50
ms
EN HIGH-level input time^*1
EN
T_ENH
EN input pulse HIGH-level minimum
pulsewidth
4.0
–
–
µs
EN LOW-level input time^*1*2
EN
T_ENL
EN input pulse LOW-level pulsewidth
range
4.0
–
500
µs
Logic input voltage
V_IH
HIGH-level input voltage range
EN
V_IL
LOW-level input voltage range
Logic input current
I_IH
Pull-down pin, EN pin = 3.6V
EN
I_IL
EN pin = 0V
*1. Design guaranteed value
*2.
1.4
–
–
V
–
–
0.3
V
–
5.0
10.0
µA
–1.0
–
–
µA
When shutdown
EN
> 1.5msec
When dimming
EN
4µsec to 500µsec
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