SM8133B Datasheet, PDF (6/20 Pages) Nippon Precision Circuits Inc – White LED Driver IC

SM8133B
Electrical Characteristics
DC Characteristics
GND = PGND = 0V, V_IN = 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
I_STB Standby mode
–
0.01
1.00
µA
I_DD1 LDO-only operating, no load
–
0.3
0.7
mA
VIN
I_DD2 ×1.0 mode, no load
–
0.5
1.0
mA
I_DD3 ×1.5 mode, no load
–
2.5
4.0
mA
VOUT
V_OUT ×1.5 mode VOUT maximum voltage
4.8
5.0
5.2
V
VOUT
I_OUT ×1.5 mode
200
–
–
mA
C1M
f_OSC ×1.5 mode switching frequency
650
750
850
kHz
EN
T_POR
Time from when power is applied until
internal circuit reset
–
0.02
0.10
ms
Soft start time
DIN1 to 7
T _SS
Time between EN signal falling edge
and LED turning ON
–
1.3
3.0
ms
LED drive pin leakage current DIN1 to 7 I_{LEAK1 to 7} Standby mode, V_{DIN1 to 7} = 5.0V
–
0.01
1.00
µA
LED drive current matching
DIN1 to 6
∆I_LED
×1.0 mode, matching between channels
with I_{LED1 to 6} maximum setting
–3.0
–
+3.0
%
LED maximum drive current 1 DIN1 to 6 I_{LED1 to 6} ×1.0 mode, I_{LED1 to 6} maximum setting
27.0
30.0
33.0
mA
LED drive pin voltage 1
DIN1 to 6 V_{DIN1 to 6} I_{LED1 to 6} maximum setting
80
120
150
mV
LED maximum drive current 2 DIN7
I_LED7 ×1.5 mode, I_LED7 maximum setting
142.5
150.0
157.5
mA
LED drive pin voltage 2
DIN7
V_DIN7 I_DIN7 maximum setting
225
300
375
mV
LDO output voltage
LDOUT V_LDO V_IN = 3.6V, I_LDO = 100mA
2.94
3.00
3.06
V
LDO maximum output current LDOUT
I_LDO V_IN = 3.0V, V_LDO = 2.85V
100
–
–
mA
LDO input stability
LDOUT ∆V_OUT1 3.3V ≤ V_IN ≤ 4.6V, I_LDO = 30mA
–
–
1.0
%/V
LDO load stability
LDOUT ∆V_OUT2 V_IN = 3.6V, 10µA ≤ I_LDO ≤ 80mA
–
–
100
mV
LDO overcurrent protection
circuit operating current
LDOUT
I_OS V_IN = 3.6V
120
230
360
mA
Thermal protection circuit
operating temperature^*1
–
T_SD Not in test mode
–
180
–
°C
Thermal protection circuit
hysteresis^*1
–
T_SDHYS Not in test mode
–
20
–
°C
Logic-level input voltage
EN, SCK,
SDA,
RESETB
V_IH
V_IL
V_IHYS
HIGH-level input voltage range
LOW-level input voltage range
Hysteresis voltage width
1.8
–
–
V
–
–
0.6
V
–
0.3
0.5
V
EN, SCK,
I_IL
EN = SCK = SDA = RESETB = VIN
–
–
Logic-level input current
SDA,
RESETB
I_IH
EN = SCK = SDA = RESETB = GND
–1.0
–
1.0
µA
–
µA
*1. Design guaranteed value
NIPPON PRECISION CIRCUITS INC.—6