LGGQ 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
일치하는 목록
LGGQ Datasheet PDF : 24 Pages
| |||
LT8614
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
PARAMETER
Feedback Voltage Line Regulation
Feedback Pin Input Current
INTVCC Voltage
INTVCC Undervoltage Lockout
BIAS Pin Current Consumption
Minimum On-Time
Minimum Off-Time
Oscillator Frequency
Top Power NMOS On-Resistance
Top Power NMOS Current Limit
Bottom Power NMOS On-Resistance
Bottom Power NMOS Current Limit
SW Leakage Current
EN/UV Pin Threshold
EN/UV Pin Hysteresis
EN/UV Pin Current
PG Upper Threshold Offset from VFB
PG Lower Threshold Offset from VFB
PG Hysteresis
PG Leakage
PG Pull-Down Resistance
SYNC Threshold
SYNC Pin Current
TR/SS Source Current
TR/SS Pull-Down Resistance
CONDITIONS
VIN = 4.0V to 42V, ILOAD = 0.5A
VFB = 1V
ILOAD = 0mA, VBIAS = 0V
ILOAD = 0mA, VBIAS = 3.3V
VBIAS = 3.3V, ILOAD = 1A, 2MHz
ILOAD = 1A, SYNC = 0V
ILOAD = 1A, SYNC = 3.3V
RT = 221k, ILOAD = 1A
RT = 60.4k, ILOAD = 1A
RT = 18.2k, ILOAD = 1A
ISW = 1A
VINTVCC = 3.4V, ISW = 1A
VINTVCC = 3.4V
VIN = 42V, VSW = 0V, 42V
EN/UV Rising
VEN/UV = 2V
VFB Falling
VFB Rising
VPG = 3.3V
VPG = 0.1V
SYNC Falling
SYNC Rising
VSYNC = 6V
Fault Condition, TR/SS = 0.1V
MIN
TYP
MAX
l
0.004
0.02
–20
20
3.23
3.4
3.57
3.25
3.29
3.35
2.5
2.6
2.7
9
l 15
30
45
l 15
30
45
80
110
l 180
210
240
l 665
700
735
l 1.85
2.00
2.15
85
l 5.7
8.5
10
40
l 4.5
6.9
8.5
–1.5
1.5
l 0.94
1.0
1.06
40
–20
20
l
6
9.0
12
l –6
–9.0
–12
1.2
–40
40
l
650
2000
0.8
1.1
1.4
1.6
2.0
2.4
–40
40
l 1.5
2.2
2.9
200
UNITS
%/V
nA
V
V
V
mA
ns
ns
ns
kHz
kHz
MHz
mΩ
A
mΩ
A
µA
V
mV
nA
%
%
%
nA
Ω
V
V
nA
µA
Ω
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT8614E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization, and correlation with statistical process controls. The
LT8614I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT8614H is guaranteed to meet performance
specifications from –40°C to 150°C operating junction temperature range.
High junction temperatures degrade operating lifetimes. Operating lifetime
is derated at junction temperatures greater than 125°C.
Note 3: This IC includes overtemperature protection that is intended to
protect the device during overload conditions. Junction temperature will
exceed 150°C when overtemperature protection is active. Continuous
operation above the specified maximum operating junction temperature
will reduce lifetime.
For more information www.linear.com/LT8614
8614fb
3
Share Link: 