2 EVM Characteristics
Unless otherwise specified, the following conditions apply: T
A
= 25ºC, I
OUT1
= primary output current, I
OUT2
=
secondary output current
Table 2-1. LM5168FQEVM Electrical Performance Characteristics
Parameter
Test Conditions
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
Input voltage range, V
VIN
EVM input voltage operating range
20
48
115
V
Input voltage turn-on, V
IN(ON)
Adjusted by EN/UVLO resistors
6.0
V
Input voltage turn-off, V
IN(OFF)
5.6
V
Input voltage hysteresis, V
IN(HYS)
0.4
V
Input current, no load, I
IN(NL)
I
OUT
= 0 A
V
IN
= 48 V
13
mA
Input current, disabled, I
IN(OFF)
V
EN/UVLO
= 0 V, no EN divider V
IN
= 36 V
10
µA
OUTPUT CHARACTERISTICS
Output voltage, V
OUT1
V
IN
= 48 V, I
OUT1
= I
OUT2
= 0A
10.0
V
Output voltage, V
OUT2
V
IN
= 48 V, I
OUT1
=0 A, I
OUT2
= 0A
10.0
Output current, I
OUT1
V
IN
= 48 V, I
OUT2
= 0 A
0.25
A
Output current, I
OUT2
V
IN
= 48 V, I
OUT1
= 0 A
0.25
A
Output voltage regulation, ΔV
OUT1
Load regulation, V
IN
= 48 V
I
OUT1
= 0 A to 0.25
A, I
OUT2
= 0 A
1
mV
Output voltage regulation, ΔV
OUT2
Load regulation, V
IN
= 48 V
I
OUT1
= 0 A to 0.25
A, I
OUT2
= 0 A
200
Output voltage regulation, ΔV
OUT1
Load regulation, V
IN
= 48 V
I
OUT2
= 0 A to 0.25
A, I
OUT1
= 0 A
7
Output voltage regulation, ΔV
OUT2
Load regulation, V
IN
= 48 V
I
OUT2
= 0 A to 0.25
A, I
OUT1
= 0 A
1000
Output voltage regulation, ΔV
OUT1
Line regulation, I
OUT1
= I
OUT2
= 0 A
V
IN
= 24 V to 115 V
50
Output voltage regulation, ΔV
OUT2
Line regulation, I
OUT1
= I
OUT2
= 0 A
V
IN
= 24 V to 115 V
750
Maximum output current from primary
output
V
IN
= 48 V, I
OUT2
= 0 A
0.27
A
Soft-start time, t
SS
3.5
ms
SYSTEM CHARACTERISTICS
Switching frequency
V
IN
= 36 V, I
OUT1
= 0 A , I
OUT2
= 0 A
730
kHz
Half-load efficiency
I
OUT1
= I
OUT2
= 0.08 A
V
IN
= 48 V
70%
Full load efficiency
I
OUT1
= I
OUT2
= 0.125 A
V
IN
= 48 V
76%
V
IN
= 60 V
72%
EVM Characteristics
LM5168FEVM EVM User's Guide
5
Copyright © 2021 Texas Instruments Incorporated
