STCS2A Datasheet, PDF (6/18 Pages) STMicroelectronics – 2 A max constant current LED driver

Electrical characteristics
4
Electrical characteristics
STCS2A
Table 5.
Symbol
Electrical characteristics (V_CC = 12 V; I_O = 100 mA; T_J = -40 °C to 125 °C; V_DRAIN = 1 V;
C_DRAIN = 1 µF; C_BYP = 100 nF typical values are at T_A = 25°C, unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
V_CC Supply voltage range
Output current range
I_O
Output current
Regulation (percentage with
respect to V_CC = 12 V)
V_FB Feedback voltage
R_FB = 50 mΩ
V_CC = 4.5 to 40 V,
I_O = 100 mA; V_DRAIN = 1 V
I_O = 0 to 2A
On Mode
I_CC
Quiescent current (Measured on
V_CC pin)
Shutdown Mode;
V_CC = 5 to 12V
Shutdown Mode;
V_CC = 12 to 40V
V_DROP
I_O = 100 mA
Dropout voltage (V_DRAIN to GND)
I_O = 2 A
LEAK_DRAIN Drain leakage current
Shutdown; V_DRAIN = 40 V
T_R/T_F
Rise/Fall time of the current on
PWM transition
C_SLOPE = 10 nF,
T_J = -40 °C to 105 °C
V_PWM rising, V_CC = 12 V
C_SLOPE = floating
T_D
Delay on PWM signal (Figure 1)
V_PWM falling, V_CC = 12 V
C_SLOPE = floating
Low level voltage
I_SINK = 5 mA
DISC
Leakage current
Load disconnection threshold
(V_DRAIN-GND)
V_DISC = 5 V
DISC Turn-ON
DISC Turn-OFF
Thermal ^{Shutdown temperature}
Protection _Hysteresis
4.5
40
V
1
2000 mA
2
A
-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)
V_L
Input low level
V_H
Input high level
1.2
EN, PWM leakage current
V_EN = 5 V; V_PWM = 5 V
EN input leakage current
V_EN = 40 V
PWM input leakage current
V_PWM = 40 V
0.4
V
V
2
60
µA
120
Note:
6/18
All devices 100 % production tested at T_A = 25 °C. Limits over the operating temperature
range are guaranteed by design.