Curtis Instruments 1351 User Manual

2 — INSTALLATION SPECIFICATIONS AND WIRING
pg. 17
Return to TOC Curtis Model 1351 – December 2018
Table 4 Driver Outputs Electrical Specifications
Signal
Name
Pin
Output Type
Activity Level
Output Low
Voltage
PWM Frequency
Accuracy
Output Current*
Short-Circuit
Current
Measurement
Sense Limit
Input
Impedance
Driver 1 13
Low-Side Driver
Low = On
< 0.25 V at full
current and
100 % PWM
> 15kHz
± 0.5%
of full range
3 Amps
< 30 Amps
for < 100μS
10mA – 3.5 Amps
8 – 100% PWM
24kΩ
12-48V
models
47kΩ
36-96V
models
Driver 2 24
Driver 3 26
Driver 4 27
Driver 5 28
Driver 6 29
Driver 7 30
Driver 8 31
Driver 9 32
Driver 10 33
Half-Bridge Drivers
e Half-Bridge drivers are high frequency PWM drivers with current feedback. ey can be set to
operate as Low or High-Side drivers. In the Low-Side topology, connect the load to Coil Return/Safety
Output and the driver pin. In the High-Side topology, connect the load from B− to the driver pin.
Set the topology type using its Type parameter. e Half-Bridge (HB) Drivers also have the same
control modes as the PWM Drivers. Use them to drive high-side connected (Coil Return) or low-side
connected (B−) loads in constant current, constant voltage or PWM % modes. ese drivers are short
circuit protected to B+ or B−.
Table 5 Half-Bridge Drivers Electrical Specifications
Signal
Name
Pin
Output Type
Activity Level
Output Low Voltage
PWM Frequency
Accuracy
Output Current*
Short-Circuit
Current
Measurement
Sense Limit
Input
Impedance
HB Driver 1 23
Half-Bridge Driver
Low-Side = 0
High-Side = 1
< 0.25 V at full
current and
100 % PWM
> 15kHz
± 0.5%
of full range
3 Amps
< 30 Amps
for < 100μS
10mA – 3.5 Amps
12 – 88% PWM
> 650kΩ
HB Driver 2 35

Curtis Instruments 1351 Specifications

General

Brand	Curtis Instruments
Model	1351
Category	I/O Systems
Language	English