Section 1
– Introduction
TOELLNER Electronic Instrumente GmbH
5
1.1.2
Overview of features
Basic functions
- Electronic power switch consisting of longitudinal and branch path, both paths
unidirectional for specified current flow direction
- Branch path selectable inactive, active without series resistor or active with series
resistor 0.1
Ω
- High-impedance loads of 10
kΩ or 100 kΩ can be continually applied
- Applicability
of branch path for switching ground lines or return lines
- Capacitive buffering of input can be applied
- Four electronic bidirectional signal line switches
- BNC control inputs at front and rear
- Control signal can be internally inverted
- Pull-up resistor can be connected to the control inputs
- Control inputs compatible with TTL, CMOS 5 V, and LVCMOS 3.3 V
- Permissible switching frequency DC up to 100 kHz
- Protected against overcurrent / short-circuit, excessive temperature, excessive switching
frequency
1.2
Model overview
Series
TOE 9261
devices are available in models for various rated currents. The rated
current of the power switch is indicated by a hyphenated number added to the basic part
number.
The rated currents for the signal line switches as well as the rated voltages are shown in the
following table.
Series
TOE 9261
electronic switches
Model
Power switch
Signal line switches
Current
Voltage
Current
Voltage
TOE 9261-50
0 - 50 A
0 - 60 V
0 - 2 A
0 - 60 V
TOE 9261-100
0 - 100 A
0 - 60 V
0 - 2 A
0 - 60 V
1.3
Schematic diagram for TOE 9261
S1
S2
0.1 Ω
OUT
IN
−
+
−
+
Control
Logic
&
Driver
S3
S4
S5
S6
S1:
Unidirectional electronic
power switch,
longitudinal path
S2:
Unidirectional electronic
power switch, branch
path
S3…S6: Four electronic
bidirectional signal line
switches
