TCA505BG Datasheet, PDF (11/18 Pages) Siemens Semiconductor Group – IC for Inductive Proximity Switches with Short-Circuit Protection

TCA 505 BG
Characteristics (cont’d)
4 V ≤ VS ≤ 40 V; TA = – 40 to 110 ˚C
Parameter
Symbol
Limit Values
Unit Test
min. typ. max.
Circuit
Two-Wire Regulator (VT)
Turn-ON threshold
(outputs active) S1 = ON
VTON2
6.7
8
Turn-ON threshold
(outputs disabled) S1 = ON
VTOFF2
5.0
6
Hysteresis VTON2 – VTOFF2, S1 = ON
∆Hy 2 1.6
2
9.3
V
1
7.0
V
1
2.4
V
1
Turn-ON, Turn-OFF and Short-Circuit Delay (CD)
Turn-ON delay S1 = OFF
Turn-OFF delay S1 = OFF;
VS ≥ 3.6 V
Shortcircuit turn-off delay
S1 = OFF
Shortcircuit pause S1 = OFF
tDON
0.49
tVA
17.0
tSC
1.70
tP
0.36
0.65
25
2.5
0.5
0.82
34.0
3.40
0.65
ms/nF 2
µs/nF 2
µs/nF 2
ms/nF 2
Outputs (Q1, Q2, Q3, Q4)
Residual voltage
Q1-Q2, Q3-Q4
SQ2 0-1 = ON, SQ4 0-1 = ON
S1 = OFF
IQ = 5 mA
IQ = 60 mA
IQ = 60 mA
Reverse current on Q1, 3
Residual current on Q2, 4^*)
Q2, 4 conducting but Q1, 3 open
In case of short-circuit output current
VQRes
VQR
VQR
VQR
IQR
IQres
IQSC
0.10 0.14 V
1
0.5
0.99 V
1
VS – 2.2 VS –1.8
V
1
10
µA
50
µA 1
300 500 mA 1
Shortcircuit Detector (SC)
Trigger level ref. to VS, S1 = OFF
Trigger current S1 = OFF
Trigger level ref. to ground S1 = OFF
Trigger current S1 = OFF
VSCS
ISCS
VSCO
– ISCO
0.255 0.3
0.255 0.3
0.345 V
1
30
µA 1
0.345 V
1
6
µA 1
Semiconductor Group
11