Texas Instruments LM5023 19V 65W Notebook Adapter Evaluation Modul LM5023-2NBEVM LM5023-2NBEVM Datenbogen
Produktcode
LM5023-2NBEVM
SNVS961D – APRIL 2013 – REVISED JANUARY 2014
ELECTRICAL CHARACTERISTICS (continued)
Minimum and Maximum apply over the junction temperature range of –40°C to +125°C. Minimum and maximum limits are
specified through test, design, or statistical correlation. Typical values represent the most likely parametric norm at +25°C,
and are provided for reference purposes only. Unless otherwise specified, the following conditions apply: VCC = 10 V, F
specified through test, design, or statistical correlation. Typical values represent the most likely parametric norm at +25°C,
and are provided for reference purposes only. Unless otherwise specified, the following conditions apply: VCC = 10 V, F
SW
=
100 kHz 50% Duty Cycle, No Load on OUT.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CURRENT LIMIT
V
CS
Cycle-by-cycle sense voltage
450
500
550
mV
threshold
T
LEB
Leading edge blanking time
130
ns
T
PCS
Current limit to OUT delay
CS step from 0 to 0.6 V time to onset
22
ns
of OUT transition low, C
LOAD
= 0
R
LEB
CS blanking sinking impedance
15
35
Ω
G
CM
Current mirror gain
I
QR
= 2 ma
100
A/A
C
FF
Current feed forward
I
QR
= 2 ma
140
mV
HICCUP MODE
T
OL_
10
Over load detection timer
I
VSD
= 10 uA
12
ms
T
OL_
100
Over load detection timer
I
VSD
= 100 uA
1.2
ms
OUTPUT GATE DRIVER
V
OH
OUT high saturated
I
OUT
= 50 mA, VCC-OUT
0.3
1.1
V
V
OL
OUT low saturated
I
OUT
= 100 mA
0.3
1
V
I
PH
Peak OUT source current
OUT = VCC/2
0.3
A
I
PL
Peak OUT sink current
OUT = VCC/2
0.7
A
t
r
Rise time
C
LOAD
= 1 nF
25
ns
t
f
Fall time
C
LOAD
= 1 nF
15
ns
SOFT-START
I
SS
Soft-start
17
22
30
µA
THERMAL
T
SD
Thermal shutdown temp
165
ºC
4
Copyright © 2013–2014, Texas Instruments Incorporated
Product Folder Links: