LTC4412 Linear Technology, LTC4412 Datasheet - Page 3

• Manufacturer Part Number: LTC4412
• Description: Low Loss PowerPathTM Controller
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4412E is guaranteed to meet performance specifications
from 0 C to 70 C operating ambient temperature range. Specifications
over the – 40 C to 85 C operating ambient temperature range are assured
by design, characterization and correlation with statistical process
controls.
Note 3: This results in the same supply current as would be observed with
an external P-channel MOSFET connected to the LTC4412 and operating in
forward regulation.
Note 4: V
12V to measure the source current at GATE. SENSE is set at 11.9V to
measure sink current at GATE.
SYMBOL
GATE and STAT Outputs
I
I
V
V
t
t
I
I
t
t
CTL Input
V
V
I
H
temperature range, unless otherwise noted specifications are at T
and current out of a pin is negative. All voltages are referenced to GND, unless otherwise specified.
G(SRC)
G(SNK)
G(ON)
G(OFF)
S(OFF)
S(SNK)
S(ON)
S(OFF)
CTL
G(ON)
G(OFF)
IL
IH
CTL
IN
is held at 12V and GATE is forced to 10.5V. SENSE is set at
PARAMETER
GATE Active Forward Regulation
GATE Clamp Voltage
GATE Off Voltage
GATE Turn-On Time
GATE Turn-Off Time
STAT Off Current
STAT Sink Current
STAT Turn-On Time
STAT Turn-Off Time
CTL Input Low Voltage
CTL Input High Voltage
CTL Input Pull-Down Current
CTL Hysteresis
Source Current
Sink Current
CONDITIONS
(Note 4)
Apply I
V
Apply I
V
V
V
2.5V V
2.5V V
(Note 8)
(Note 8)
2.5V V
2.5V V
0.35V V
2.5V V
SENSE
SENSE
GS
GS
The
< –3V, C
> –1.5V, C
GATE
GATE
= 11.9V, Measure V
= 12.1V, Measure V
IN
IN
IN
IN
IN
CTL
denotes specifications which apply over the full operating
A
= 1 A, V
= – 5 A, V
= 25 C, V
GATE
28V (Note 7)
28V (Note 7)
28V
28V
28V
GATE
Note 5: V
trigger the event. GATE voltage is initially V
Note 6: V
trigger the event. GATE voltage is initially internally clamped at V
Note 7: STAT is forced to V
measure the off current at STAT. SENSE is set V
sink current at STAT.
Note 8: STAT is forced to 9V and V
from 11.8V to 12.2V to measure the STAT turn-on time defined when I
reaches one half the measured I
11.8V to measure the STAT turn-off time defined when I
half the measured I
28V
= 1nF (Note 5)
= 1nF (Note 6)
IN
IN
= 12V,
IN
IN
IN
= 12V,
= 12V, CTL and GND = 0V. Current into a pin is positive
is held at 12V and SENSE is stepped from 12.2V to 11.8V to
is held at 12V and SENSE is stepped from 11.8V to 12.2V to
IN
SENSE
– V
GATE
– V
S(SNK) .
GATE
IN
– 1.5V. SENSE is set at V
S(SNK).
IN
MIN
is held at 12V. SENSE is stepped
6.3
0.9
–1
25
–1
6
1
SENSE is stepped from 12.2V to
G(OFF)
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0.635
–2.5
0.13
TYP
110
135
IN
4.5
0.5
3.5
.
50
13
10
40
7
0
+ 0.1V to measure the
LTC4412
IN
STAT
– 0.1V to
MAX
0.25
0.35
175
7.7
5.5
–5
85
22
17
25
75
1
reaches one
G(ON)
UNITS
.
3
STAT
4412f
mV
A
A
V
V
A
A
V
V
A
s
s
s
s