LT3710
The
q
denotes the specifications which apply over the full operating
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.
PARAMETER
Oscillator
Switching Frequency
Synchronization Frequency Range
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
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
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
CONDITIONS
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
q
q
q
q
q
MIN
170
240
245
345
0.90
TYP
200
280
MAX
240
340
400
500
UNITS
kHz
kHz
kHz
kHz
V
V
V
%
1.15
2.4
2.5
1.4
85
7.5
5
5
90
8.0
6
6
8.5
7
7.5
0.5
0.5
1
25
V
V
V
V
V
A
ns
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.
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.
TYPICAL PERFOR A CE CHARACTERISTICS
V
GBIAS
vs I
GBIAS
over Junction
Temperature
8.1
–40°C
12
8.0
V
GBIAS
(V)
25°C
I
CC
(mA)
GAIN (dB)
7.9
7.8
125°C
7.7
0
10
I
GBIAS
(mA)
20
26
3710 G01
U W
I
CC
vs V
CC
(Switching Off)
13
T
A
= 25°C
120
Voltage Amplifier VA Gain and
Phase
T
A
= 25°C
GAIN
(–111°)
PHASE
40
–100
–0
11
10
9
8
7
6
5
8
10
12
14
16 18
V
CC
(V)
20
22
24
80
–50
PHASE (DEG)
0
0dB, 10MHz
–20
10
100
1k
10k 100k 1M
FREQUENCY (Hz)
–150
–180
10M 100M
3710 G03
3710 G02
3710f
3
LINER [ LINEAR TECHNOLOGY ]
