STCF02 STMicroelectronics, STCF02 Datasheet - Page 7

• Manufacturer Part Number: STCF02
• Description: HIGH POWER WHITE LED DRIVER
• Manufacturer: STMicroelectronics

Specifications of STCF02

• Drives One Power White Led: up to 600mA between 2.7 to 4.5V
• Torch Mode: up to 250 mA

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