LTC3810EG LINER [Linear Technology], LTC3810EG Datasheet - Page 4

• Manufacturer Part Number: LTC3810EG
• Description: 100V Current Mode Synchronous Switching Regulator Controller
• Manufacturer: LINER [Linear Technology]

SYMBOL
V
I
PG Delay
Tracking
I
V
V
V
V
ΔV
ΔV
V
ΔV
I
I
V
I
LTC3810
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
= 10V, V
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 LTC3810E is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3810I is guaranteed to meet
perfomance specifi cations over the full –40°C to 125°C operating
temperature range.
Note 3: T
dissipation P
4
PGOOD
SS/TRACK
NDRV
NDRVTO
CCSR
PGOOD
FB,TRACK
CC
EXTVCC
INTVCC,1
INTVCC,2
CCSR
EXTVCC,1
LOADREG,1
LOADREG,2
LTC3810: T
Regulators
MODE/SYNC
J
is calculated from the ambient temperature T
D
according to the following formula:
J
= T
A
+ (P
= V
PARAMETER
PGOOD Low Voltage
PGOOD Leakage Current
PGOOD Delay
SS/TRACK Source Current
Feedback Voltage at Tracking
INTV
V
INTV
INTV
INTV
Current into NDRV Pin
Linear Regulator Timeout Enable
Threshold
Maximum Supply Voltage
Maximum Current into NDRV/INTV
EXTV
EXTVCC
EXTV
EXTV
SENSE
D
CC
CC
CC
CC
• 100°C/W)
CC
CC
CC
Voltage from EXTV
Load Regulation from EXTV
Voltage from NDRV Regulator
Load Regulation from NDRV
PARAMETER
Maximum V
MOSFET Gate Drive
INTV
INTV
– V
Switchover Voltage
+
Rising
Hysteresis
= V
INTVCC
CC
CC
SENSE
UV
UV
at Dropout
+
–
IN
–
= V
BGRTN
CC
= V
A
CC
CC
and power
SW
6.35V to 14V
A
LTC3810
= 25°C, INTV
= 0V, unless otherwise specifi ed.
100V
6.2V
CONDITIONS
I
V
V
V
V
V
10.5V < V
I
I
Linear Regulator in Operation
I
V
Trickle Charger Shunt Regulator
Trickle Charger Shunt Regulator,
INTV
6V
PGOOD
CC
CC
CC
TRACK
TRACK
PGOOD
FB
SS/TRACK
NDRV
= 0mA to 20mA, V
The
= 20mA, V
= 0mA to 20mA, V
Falling
CC
– V
= 5mA
= 0V, I
= 0.5V, I
≤ 16.7V (Note 8)
= 5V
l
EXTVCC
INTVCC
> 0.5V
denotes specifi cations which apply over the full operating
CC
TH
EXTVCC
TH
= DRV
Note 4: The LTC3810 is tested in a feedback loop that servos V
reference voltage with the I
Note 5: The dynamic input supply current is higher due to the power
MOSFET gate charging being delivered at the switching frequency
(Q
Note 6: Guaranteed by design. Not subject to test.
Note 7: 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 specifi ed maximum operating junction
temperature may impair device reliability.
Note 8: I
= 1.2V (Note 4)
< 15V
= 3V
= 1.2V (Note 4)
G
4.5V to 14V
• f
LTC3810-5
= 9.1V
EXTVCC
EXTVCC
OSC
CC
4.2V
60V
4V
CC
).
= V
is the sum of current into NDRV and INTV
= 12V
= 0
BOOST
= V
ON
TH
= V
4.5V to 14V
LTC3812-5
pin forced to a voltage between 1V and 2V.
l
RNG
4.2V
60V
4V
= SHDN = UV
0.48
MIN
210
0.7
6.4
0.1
9.4
9.4
20
10
–0.018
0.01
0.01
TYP
120
170
270
0.3
1.4
0.5
6.7
0.3
10
10
40
15
0
IN
CC
= V
.
EXTVCC
MAX
0.52
10.6
10.6
250
350
0.6
2.5
0.5
60
2
FB
to the
= V
UNITS
3810fb
NDRV
mV
mA
μA
μA
μA
μA
μs
%
%
V
V
V
V
V
V
V
V