參數(shù)資料
型號： 3710EFE
廠商： Linear Technology Corporation
英文描述： Secondary Side Synchronous Post Regulator
中文描述： 二次側(cè)同步后穩(wěn)壓器
文件頁數(shù)： 3/12頁
文件大小： 226K
代理商： 3710EFE
LT3710
3
3710f
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LT3710E is guaranteed to meet performance specifications
from 0
°
C to 125
°
C. Specifications over the –40
°
C to 125
°
C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
PARAMETER
Oscillator
Switching Frequency
CONDITIONS
MIN
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 11V, operating maximum V
CC
= 24V, no load on any outputs
unless otherwise noted.
The
G
denotes the specifications which apply over the full operating
C
S
= 500pF (No SYNC)
C
S
= 333pF (No SYNC)
C
S
= 500pF
C
S
= 333pF
C
S
= 1000pF (No SYNC)
C
S
= 1000pF (No SYNC)
Falling Edge V
SYNC
V
FB
= V
REF
– 5mV, C
S
> 500pF
G
G
170
240
245
345
0.90
200
280
240
340
400
500
1.4
kHz
kHz
kHz
kHz
Synchronization Frequency Range
G
G
CSET Ramp Valley Voltage
CSET Peak-to-Peak Voltage
Synchronization Pulse Threshold on SYNC Pin
Maximum Duty Cycle
Gate Drivers (TGATE, BGATE)
V
GBIAS
V
TGATE
High (V
TGATE
– V
SW
)
V
BGATE
High
V
TGATE
Low (V
TGATE
– V
SW
)
V
BGATE
Low
Peak Gate Drive Current
Gate Drive Rise and Fall Time
1.15
2.4
2.5
90
V
V
V
%
G
85
I
GBIAS
< 25mA
I
TGATE
< 50mA, V
BOOST
= V
GBIAS
– 0.5V
I
BGATE
< 50mA
I
TGATE
< –50mA
I
BGATE
< –50mA
10nF Load
1nF Load
G
7.5
5
5
8.0
6
6
8.5
7
7.5
0.5
0.5
V
V
V
V
V
A
ns
G
G
G
G
1
25
TYPICAL PERFOR AU
I
GBIAS
(mA)
0
V
G
8.1
8.0
7.9
7.8
7.7
3710 G01
10
20
26
–40
°
C
25
°
C
125
°
C
V
CC
(V)
8
10
12
14
16
18
20
22
24
I
C
13
12
11
10
9
8
7
6
5
3710 G02
T
A
= 25
°
C
FREQUENCY (Hz)
10
G
120
80
40
0
–20
P
–0
–50
–100
–150
–180
3710 G03
PHASE
0dB, 10MHz
(–111
°
)
GAIN
100
1k
10k
100k
1M
10M 100M
T
A
= 25
°
C
V
GBIAS
vs I
GBIAS
over Junction
Temperature
I
CC
vs V
CC
(Switching Off)
Voltage Amplifier VA Gain and
Phase
Note 3:
This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125
°
C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
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