CLT3-4B Datasheet, PDF (3/13 Pages) STMicroelectronics – Current limited over-voltage protected quad digital termination

CLT3-4B
Characteristics
Table 2. Thermal resistance
Symbol
Parameter
Value Unit
R_th(j-a)
TSSOP20 thermal resistance junction to ambient
Board copper surface = 2 cm₂, copper thickness = 35 µm
90
°C/W
Table 3.
Symbol
Electrical characteristics (T_J = 25 °C, V_CC = 24 V and COM pin voltage
referred unless otherwise specified)
Pin
Name
Conditions
Min. Typ Max. Unit
Current limitation
I_LIM
V_LOW
IN Input limiting current
IN
Maximum off state
voltage
V_OUT = 0.9 to 2.0 V
V_IN = 5 to 27 V
T_AMB = - 25 to 85° C
I_IN = 100 µA
2.1 3 3.7 mA
1.5
V
V_TH
IN Activation threshold
I_IN = 2.1 mA
Input and Supply Protection
3.4 5
V
V_CL
IN Clamping voltage
I_IN = 7 mA; t_P = 1 ms 31 38
-
V
Opto-coupler driver operation
I_OFF
OUT Off state output current
V_I = 5 V, ⁽¹⁾
I_IN = 1.5 mA, ⁽²⁾
-
10 40 µA
-
10 40 µA
V_OFF OUT Off state output voltage I_IN = 1.5 mA
0.15 0.5 V
V_IN = 5 V
1.5 2
I_ON
OUT On state output current
V_IN = 4.2 V, V_C = 10 V 1.5
2
- mA
- mA
Supply and biasing circuit
V_C
V_C Supply voltage
T_AMB = - 25 to 85° C
10
V
I_C
V_C Supply current
V_IN = V_C = 30 V
550 800 µA
1. According to Figure 9: Robust application diagram on page 8 with use of a
R_I = 1.8 kΩ resistor, and an opto-coupler (R_LED (0 V) = 15 kΩ)
2. According to Figure 9: Robust application diagram on page 8 with use of a
R_I = 0 kΩ resistor, and an opto-coupler (R_LED (0 V) = 15 kΩ)
Table 4.
Switching electrical characteristics (T_J = 25 °C, V_CC = 24V and COM pin
voltage referred unless otherwise specified)
Symbol Pin
Name
Conditions Min. Typ Max. Unit
F_MAX IN-OUT Input to output running frequency
5
kHz
t_PLH IN-OUT Input activation propagation time
C_OUT = 22 nF
6
µs
t_PHL IN-OUT Input de-activation propagation time C_OUT = 22 nF
10
µs
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