EVM Performance Characteristics
4
SNVU609B – October 2018 – Revised April 2020
Copyright © 2018–2020, Texas Instruments Incorporated
LM5180-Q1 Dual-Output EVM User's Guide
2
EVM Performance Characteristics
(1)
The default output voltages of this EVM are 15 V and –7.7 V. Efficiency and other performance metrics can change based on
operating input voltage, load currents, externally-connected output capacitance(s), and other parameters.
(2)
The output power delivered by the LM5180-Q1 PSR flyback converter increases with input voltage.
(3)
The selected transformer provides functional isolation.
Table 2. Electrical Performance Characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CHARACTERISTICS
Input voltage range, V
IN
Operating
10
48
65
V
Input voltage turnon, V
IN(ON)
Adjusted using EN/UVLO divider resistors
9
Input voltage turnoff, V
IN(OFF)
7
Input voltage hysteresis, V
IN(HYS)
2
Input current, no load, I
IN(NL)
I
OUT1
= I
OUT2
= 0 mA
V
IN
= 24 V
1.4
mA
V
IN
= 48 V
1.1
V
IN
= 65 V
1
Input current, disabled, I
IN(OFF)
V
EN
= 0 V
V
IN
= 24 V
10
µA
OUTPUT CHARACTERISTICS
Output voltage, V
OUT1
(1)
I
OUT1/2
= 5 mA to 200 mA
14.7
15.0
15.3
V
Output voltage, V
OUT2
(1)
–7.5
–7.7
–7.9
V
Output current, I
OUT1
, –I
OUT2
(2)
V
IN
= 12 V
0
180
mA
V
IN
= 24 V
0
220
V
IN
= 48 V
0
300
V
IN
= 70 V
0
350
Output voltage regulation,
Δ
V
OUT
Load regulation, V
IN
= 24 V
I
OUT
= 5 mA to 200 mA
1%
Line regulation, I
OUT
= 100 mA
V
IN
= 10 V to 65 V
1%
Output voltage ripple, V
OUT(AC)
V
IN
= 24 V, I
OUT1
= I
OUT2
= 200 mA
100
mVrms
Output overcurrent protection, I
OCP
V
IN
= 24 V
250
mA
Soft-start time, t
SS
C
SS
= 47 nF
8
ms
SYSTEM CHARACTERISTICS
Switching frequency, F
SW(nom)
V
IN
= 24 V, I
OUT1
= I
OUT2
= 100 mA
350
kHz
Half-load efficiency,
η
HALF
(1)
I
OUT1
= I
OUT2
= 100 mA
V
IN
= 12 V
88.5%
V
IN
= 24 V
88.5%
V
IN
= 48 V
86%
V
IN
= 65 V
85%
Full load efficiency,
η
FULL
I
OUT1
= I
OUT2
= 200 mA
V
IN
= 24 V
88%
V
IN
= 48 V
87.5%
V
IN
= 65 V
87%
Isolation rating
(3)
Functional insulation
1500
V
LM5180 junction temperature, T
J
–40
150
°C
