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STCF03PNR 数据表(PDF) 11 Page - STMicroelectronics

部件名 STCF03PNR
功能描述  High power white LED driver with I2C??interface
Download  35 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STCF03PNR 数据表(HTML) 11 Page - STMicroelectronics

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Electrical characteristics
STCF03
11/35
6
Electrical characteristics
Table 6. Electrical characteristics
(TJ = 25°C, VI = 3.6 V, 2xCI = 10 µF, CO = 1 µF, L = 4.7 µH, RFL = 0.27 Ω RTR = 1.8 Ω, RX = 15 KΩ,
Typ. values @25°C, unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VI
Input operation supply voltage
2.7
5.5
V
VPW_ON
RESET
Power ON reset threshold
VI rising
2.3
V
IO
Output current adjustment
range IFLASH
FLASH MODE for VI = 2.7 V to 5.5 V
(STCF03PNR)
60
800
mA
FLASH MODE for VI = 2.7 V to 3.3 V
(STCF03TBR)
60
600
FLASH MODE for VI=3.3 V to 5.5 V
(STCF03TBR)
60
800
Output current adjustment
range ITORCH
Torch mode VI = 2.7 V to 5.5 V
15
200
Auxiliary LED output current
adjustment range IAUXLED
Ready mode, VI = 3.3 V to 5.5 V
0
20
VO
Regulated voltage range
2.5
5.3
V
FB1
Feedback voltage
Torch mode
30
250
mV
FB2
Feedback voltage
Flash mode
30
250
mV
ΔIO
Output current tolerance
Flash mode, IO = 160 mV/RFL
-10
10
%
RON_
FB1-FB2 ON resistance
Torch mode, IO = 200 mA
90
m
Ω
IQ
Quiescent current in
SHUTDOWN mode
NTC_ON=0
1
µA
NTC_ON=1
1
Quiescent current in ready -
mode
1.8
mA
fs
Frequency
VI = 2.7 V
1.8
MHz
ν
Efficiency of the chip itself
VI = 3.2 to 4.2 V, Flash Mode,
IO = 800 mA
87
%
Efficiency of the whole
application
VI = 3.2 to 4.2 V, Flash Mode,
IO = 800 mA, VO=VfLED_max + VFB2 =
5.02 V
See the typical application schematic
It is included losses of inductor and
sensing resistor
76
OVP
Output over voltage protection VI = 5.5 V, No Load
5.3
V
OVHYST Over voltage hysteresis
VI = 5.5 V, No Load
0.3
V
OTP
Over temperature protection
VI = 5.5 V
140
°C
OTHYST Over temperature hysteresis
VI = 5.5 V
20
°C


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