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SLUU150 – February 2003
2.3
Simple – 48-V Hot Swap EVM Operating Specifications
The – 48 – V hot swap EVM is intended to allow some degree of user reconfiguration. This allows
designers to set up the circuit to better represent the characteristics of their target application.
Potential modifications include changing the current limit threshold, the inrush limiting, the fault
timing, and load characteristics. However, under no circumstances should the EVM kit be
operated beyond the absolute maximum conditions specified in Table 2.
Table 2. Absolute Maximum Ratings (1)(2)
Input voltage range, J1
Load current, J3
Load return current, J4
Ambient operating temperature range
PARAMETER
MIN
– 0.3
– 40
MAX
100
– 5
5
85
UNITS
V
A
° C
(1) All voltages are with respect to the PCB – 48-V_IN node at J2.
(2)
Currents are positive into and negative out of the specified terminal.
As supplied from the factory, the – 48-V hot swap EVM is configured for operation under the
following target conditions, shown in Table 3.
Table 3. Recommended Operating Conditions (1)(2)
Input supply voltage, J1
Nominal load current, J3
Nominal load return current, J4
Operating temperature range
PARAMETER
MIN
36
– 40
TYP
48
– 1
1
MAX
80
85
UNITS
V
A
° C
(1) All voltages are with respect to the PCB – 48-V_IN node at J2.
(2)
Currents are positive into and negative out of the specified terminal.
3
3.1
Getting Started
Equipment Requirements
The following test equipment is required to use the simple – 48-V hot swap EVM (TPS2390EVM
or TPS2391EVM).
?
?
?
Power supply, 80 V Vdc at 3-A minimum
Oscilloscope
Digital voltmeter (DVM)
Evaluation Modules for Simple – 48-V Hot Swap Controllers
9
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