STCS1 Datasheet, PDF (6/17 Pages) STMicroelectronics – 1.5 A max constant current LED driver

Electrical characteristics
4
Electrical characteristics
STCS1
Table 5.
Symbol
Electrical characteristics
(V_CC = 12 V; I_O = 100 mA; T_A = -40°C to 85°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
R_FB = 0.2 Ω
Regulation (percentage with
respect to V_CC=12V)
V_CC = 4.5 to 40 V,
I_O = 100 mA; V_DRAIN = 1 V
V_FB Feedback voltage
All the current range
On Mode
I_CC
Quiescent current (measured on
V_CC pin)
Shutdown Mode;
V_CC = 5 to 40 V
V_DROP
Dropout voltage (V_DRAIN to GND) ^{IO = 100 mA}
I_O = 1.5 A
LEAK_DRAIN Drain leakage current
Shutdown; V_DRAIN = 40 V
T_D
Delay on PWM signal
(see Figure 3.)
V_PWM rising, V_CC = 12 V
V_PWM falling, V_CC = 12 V
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
1500 mA
500
mA
-1
+1
%
90
100 110 mV
450 650
µA
1
0.12 0.16
V
0.58 0.9
10
µA
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
50
µA
100
Note:
All devices 100% production tested at T_A = 25°C. Limits over the operating temperature
range are guaranteed by design.
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