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STCS05A Datasheet, PDF (6/18 Pages) STMicroelectronics – 0.5 A max constant current LED driver
Electrical characteristics
4
Electrical characteristics
STCS05A
Table 5.
Symbol
Electrical characteristics (VCC = 12 V; IO = 100 mA; TJ = -40 °C to 125 °C; VDRAIN = 1 V;
CDRAIN = 1 µF; CBYP = 100 nF typical values are at TA = 25 °C, unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
VCC Supply voltage range
Output current range
IO
Output current
Regulation (percentage with
respect to VCC = 12 V)
VFB Feedback Voltage
RFB = 0.2 Ω
VCC = 4.5 to 40V,
IO = 100mA; VDRAIN = 1V
IO = 0 to 0.5A
On Mode
ICC
Quiescent current (Measured on
VCC pin)
Shutdown Mode;
VCC = 5 to 12V
Shutdown Mode;
VCC = 12 to 40V
VDROP
IO = 100mA
Dropout voltage (VDRAIN to GND)
IO = 0.5A
LEAKDRAIN Drain leakage current
Shutdown; VDRAIN = 40V
TR/TF
Rise/Fall time of the current on
PWM transition
CSLOPE = 10 nF,
TJ = -40 °C to 105 °C
TD
Delay on PWM signal (see
Figure 3)
VPWM rising, VCC = 12V
CSLOPE = floating,
VPWM falling, VCC = 12V
CSLOPE = floating
Low level voltage
ISINK = 5mA
DISC
Leakage current
Load disconnection threshold
(VDRAIN-GND)
VDISC = 5V
DISC Turn-ON
DISC Turn-OFF
Thermal Shutdown temperature
Protection Hysteresis
4.5
40
V
1
500 mA
500
mA
-1
+1
%
90
100 110 mV
450 750
1
µA
3
0.12 0.16
V
0.58 0.9
10
µA
800
µs
3
µs
1.2
0.2
0.5
V
1
µA
75
mV
110
155
°C
25
Logic inputs (PWM and EN)
VL
Input low level
VH
Input high level
1.2
EN, PWM leakage current
VEN = 5V; VPWM = 5V
EN input leakage current
VEN = 40V
PWM input leakage current
VPWM = 40V
0.4
V
V
2
60
µA
120
Note:
6/18
All devices 100 % production tested at TA = 25 °C. Limits over the operating temperature
range are guaranteed by design.