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STCF05 数据表(PDF) 11 Page - STMicroelectronics

部件名 STCF05
功能描述  High power white LED driver with I²C interface
PDF  33 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STCF05 数据表(HTML) 11 Page - STMicroelectronics

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STCF05
Electrical characteristics
Doc ID 15257 Rev 4
11/33
6
Electrical characteristics
TA = 25 °C, VIN = 3.6 V, 2 x CIN = 10 µF, COUT = 1 µF, L = 1 µH, RX = 15 kΩ. Typ. values are
at 25 °C, unless otherwise specified.
Table 6.
Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIN
Input operating supply
voltage
(1)
2.5
5.5
V
VPW_ON
RESET
Power ON reset
threshold
VIN rising
2.3
V
IO
Output current
adjustment range IFLASH
Flash mode for VIN=2.5V to 5.5V;
VOUT=10V;
75
400
mA
Output current
adjustment range
ITORCH
Torch mode VIN=2.5V to 5.5V
15
120
Auxiliary LED output
current adjustment
range IAUXLED
Ready mode, VIN=3.3V to 5.5V
0
20
VOUT
Regulated voltage range
VBAT
10.2
V
ΔI
O
Output current variation
Flash mode
-10
10
%
IQ
Quiescent current in
standby mode
NTC_ON=0
0.6
1
µA
NTC_ON=1
0.6
1
µA
Quiescent current in
Ready-mode
Aux LED=ON, Aux LED disconnected
5.5
mA
fs
Frequency
VIN=2.7V
1.8
MHz
ν
Efficiency of the chip
itself (2)
VIN=3.2 to 4.2V, flash mode, IO=400mA,
VO=2xVFLED_max+VLED =10V
85
%
ν
Efficiency of the whole
application (3)
VIN=3.2 to 4.2V, flash mode, IO=400mA
79
%
OVP
Output over voltage
protection
VIN= 5.5V, No Load
11.6
V
OTP
Over temperature
protection
VIN=5.5V
140
°C
OTHYST
Over temperature
hysteresis
VIN=5.5V
20
°C
VREF5
NTC hot voltage
threshold
Ready mode, INTC=2mA max
1.2
V
VREF4
NTC warning voltage
threshold
Ready mode, INTC=2mA max
0.56
V
ATN_VOL
Low level ATN output
logic signal
IOL=10mA
0.2
V



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