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STCF02 数据表(PDF) 7 Page - STMicroelectronics

部件名 STCF02
功能描述  High power white led driver
PDF  19 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STCF02 数据表(HTML) 7 Page - STMicroelectronics

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STCF02
Characteristics
7/19
4
Characteristics
Table 5.
Electrical characteristics
(All typical values are referred to TA = 25°C, VI = 3.6V)
Note: 1 Guaranteed by design
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Input Operating Voltage
2.7
5.5
V
ICC
Torch mode
616
686
757
µA
Medium flash mode
590
688
733
Flash mode
555
660
728
VUVLO
Under voltage lockout threshold
VI rising
5.1
5.3
V
VI falling
5.1
5.3
IO
Output Current Adjustment
Range, IFLASH
Flash mode for VI = 2.7V to 4.5V
RFLASH_MIN=1.6Ω to
RFLASH_MAX=0.27Ω
100
600
mA
Output Current Adjustment
Range, IMFLASH
Medium flash mode for VI = 2.7V to
4.5V RMFLASH_MIN=1.1kΩ to
RMFLASH_MAX=500kΩ
25%
IFLASH
IFLASH
Output Current Adjustment
Range, ITORCH
Torch mode VI = 2.7V to 4.5V
RTORCH+RFLASH=6.4Ω to
RTORCH+RFLASH=0.64Ω
25
250
∆IO
Output current variation
Flash and medium flash mode (1)
1.
Not include tolerance of sensing resistor
±10
%
Torch mode
±5%
VO
Regulated voltage range
2.5
5.1
V
FB1,2
Feedback Voltage
Flash Mode
150
160
170
mV
IQ
Quiescent Current in Stand By
EN1=EN2=EN3=0
1
µA
EN1=EN2=0 EN3=X (NTC ON)
3
f
Frequency
VI = 2.7V
1.8
MHz
e1
Efficiency
Application Circuit
Figure 2
VI = 3.2 V to 4.2V, IO=600mA
78
85
%
e2
Application Circuit
Figure 2
VI = 3.2 V to 4.2V, IO=25mA
72
75
%
IPK
Inductor peak current
VI = 2.7V, IO=600mA
1.23
A
OVP
Over voltage protection
VI = 4.2V No load
5.2
V
OTP
Over temperature protection
VI = 2.7V to 4.5V (Note: 1)
140
°C
OTHYST
Overtemperature hysteresis
VI = 2.7V to 4.5V (Note: 1)
20
°C
NTC
Voltage Reference
VI = 4V, INTC = 2mA max
1.192
V
NTCHYST Hysteresis
0.3
V
NTCLEAK Voltage Reference leakage
EN1=EN2=0, EN3=X
±1µA
EN1, EN2,
EN3
Logic signals level
Disable Low VIL
0.4
V
Enable High VIH
1.4
I_ENx
Enable input current
±1µA
TFL/TR
Transition time from PIN (Flash)
to PIN (Torch) (see
Figure 11)
PIN (IO=600mA) to PIN
(IO=100mA) (Note: 1)
30
µs
TON
Led current rise time ILED = 0 to
ILED = max (see Figure 13)
EN1=EN2=0 to EN1=0 & EN2=1
or EN1=EN2=1 (Note 1)
2ms



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