SC5014 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC5014
Semtech Corporation
SC5014 Datasheet PDF : 34 Pages
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SC5014
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min Typ Max Units
Boost Oscillator Frequency
Boost Oscillator Frequency
Maximum Duty Cycle
Control Signals: EN, PWMI, SDA, SCL
High Voltage Threshold
Low Voltage Threshold
SDA Output Low
Pin Leakage Current
PWM Dimming Input
PWMI Input Dimming Frequency
PWMI Input Resolution
Over-Voltage Protection
OVP Trip Threshold Voltage
OVP Hysteresis
OVP Leakage Current
Current Sink (IO1 to IO4)
IOx Dimming Minimum Pulse Width
ISET pin Voltage
Regulation Voltage
Current Sink Disable Threshold
Current Sink Rise/Fall Time (1)
LED Current Accuracy
LED Current Matching (2)
IOn Off Leakage Current
IO Switching Frequency
Phase Delay Time Between IO Pins
(IO1 to IO4)
FSW
FOSC
DMAX
RFSET = 100kΩ
RFSET Varies
0.85
1
0.2
88
92
VIH
VIL
VSDA(L)
ILEAK
VCC = 4.5V to 5.5V
2.1
VCC = 4.5V to 5.5V
-6mA from VCC to SDA
VEN = 0V, VPWMI = VISET = VFSET = VSDA = VSCL = 5.0V
-1
FPWMI
VOVP(TRIG)
VOVP(HYS)
IOVP(LEAK)
TPWM(MIN)
VISET
VIOn(REG)
VIOn(DIS)
tRISE/FALL
IOn(ACC%)
IOn(MATCH)
IOn(LEAK)
FPWM(IO)
tPD
100Hz < FPWMI < 10kHz
10kHz < FPWMI < 20kHz
OVP Rising
OVP Falling
OVP = 5V
FPWM(LED) = 100Hz - 30kHz
Voltage of Regulating String
Checked at Power-up
Rising Edge from 10% to 90% of IO(n)
PWMI = 100%, TA=+25 °C
PWMI = 100%, TA=+25 °C
PWMI = 100%, TA=-40 °C, +85 °C
PWMI = 0V, EN = 0V, VIO1 = 25V
FAST_FREQ = 0
FAST_FREQ = 1 (Default Setting)
FAST_FREQ = 1 (Default Setting)
tPD = (1/4)*(1/FPWM(IO)), 4 Strings On
100
10
9
1.1 1.2
10
0.1
300
1.23
0.9
0.6
25
98 100
0.1
10
20
12.5
1.15
2.2
0.8
0.3
1
30k
1.3
1
102
±1.0
±2.0
1
MHz
MHz
%
V
V
V
µA
Hz
bits
bits
V
mV
µA
ns
V
V
V
ns
mA
%
%
µA
kHz
µs
PWM Output Resolution
FPWM(IO) = 10kHz
FPWM(IO) = 20kHz
10
bits
9
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