lt3710 Linear Technology Corporation, lt3710 Datasheet - Page 3

• Manufacturer Part Number: lt3710
• Description: Secondary Side Synchronous Post Regulator
• Manufacturer: Linear Technology Corporation

temperature range, otherwise specifications are at T
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
V
V
V
V
Peak Gate Drive Current
Gate Drive Rise and Fall Time
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.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
GBIAS
TGATE
BGATE
TGATE
BGATE
8.1
8.0
7.9
7.8
7.7
0
High (V
Low (V
V
Temperature
High
Low
GBIAS
TGATE
TGATE
vs I
GBIAS
– V
– V
10
I
GBIAS
SW
SW
–40 C
25 C
125 C
over Junction
)
)
(mA)
20
W
3710 G01
U
26
13
12
11
10
9
8
7
6
5
I
8
CC
T
CONDITIONS
C
C
C
C
C
C
Falling Edge V
V
I
I
I
I
I
10nF Load
1nF Load
A
GBIAS
TGATE
BGATE
TGATE
BGATE
S
S
S
S
S
S
FB
A
= 25 C
vs V
10
= 500pF (No SYNC)
= 333pF (No SYNC)
= 500pF
= 333pF
= 1000pF (No SYNC)
= 1000pF (No SYNC)
= 25 C. V
= V
< 25mA
< 50mA, V
< 50mA
< – 50mA
< – 50mA
CC
REF
12
The
(Switching Off)
– 5mV, C
14
SYNC
CC
V
denotes the specifications which apply over the full operating
CC
BOOST
16
= 11V, operating maximum V
(V)
S
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.
> 500pF
18
= V
GBIAS
20
22
– 0.5V
3710 G02
24
–20
120
80
40
0
10
Voltage Amplifier VA Gain and
Phase
T
A
CC
= 25 C
100
= 24V, no load on any outputs
0.90
GAIN
MIN
170
240
245
345
7.5
85
1k
5
5
FREQUENCY (Hz)
10k 100k
1.15
TYP
200
280
2.4
2.5
8.0
25
90
6
6
1
0dB, 10MHz
PHASE
(–111 )
1M
LT3710
MAX
240
340
400
500
1.4
8.5
7.5
0.5
0.5
10M 100M
7
3710 G03
–0
–50
–100
–150
–180
UNITS
3
3710f
kHz
kHz
kHz
kHz
ns
%
V
V
V
V
V
V
V
V
A