Datasheet

LTC4413-1/LTC4413-2
3
441312fd
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Notes 2, 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
QROUTB
Quiescent Current While in Reverse
Turn-Off. Current Drawn from V
OUTA
When
OUTB Supplies Chip Power
V
INA
= V
INB
= 0V, V
OUTA
= 3.6V, V
OUTB
= 5.5V
l
3.5 6.5 μA
I
QOFF
Quiescent Current with Both ENBA and
ENBB High
V
INA
= V
INB
= 3.6V, V
ENBA
= V
ENBB
= 1V
l
28 38 μA
V
RTO
Reverse Turn-Off Voltage (V
OUT
– V
IN
)V
IN
= 3.6V
l
–5 10 mV
V
FWD
Forward Voltage Drop (V
IN
– V
OUT
)
at I
OUT
= –1mA
V
IN
= 3.6V
l
18 24 mV
R
FWD
On-Resistance, R
FWD
Regulation
(Measured as ΔV/ΔI)
V
IN
= 3.6V, I
OUT
= –100mA to –500mA (Note 5) 100 140 mΩ
R
ON
On-Resistance, R
ON
Regulation
(Measured as V/I at I
IN
= 1A)
V
IN
= 3.6V, I
IN
= 1A (Note 5) 140 200 mΩ
t
ON
PowerPath Turn-On Time V
IN
= 3.6V, from ENB Falling to I
OUT
Ramp
Starting
11 μs
t
OFF
PowerPath Turn-Off Time V
IN
= 3.6V, from ENB Rising with I
IN
= 100mA
Falling to 0mA
2μs
Short-Circuit Response
I
OC
Current Limit V
INA OR B
= 3.6V (Note 5) 1.8 A
I
QOC
Quiescent Current While in Overcurrent
Operation
V
INA OR B
= 3.6V, I
OUT
= 1.8A (Note 5) 100 130 μA
STAT Output
I
SOFF
STAT Off Current Shut Down
l
–1 0 1 μA
I
SON
STAT Sink Current V
IN
> V
OUT
, V
CTL
< V
IL
, T
J
< 135°C, I
OUT
< I
MAX
l
71115 μA
t
S(ON)
STAT Pin Current Turn-On Time V
IN
= 3.6V, from ENB Falling 1.8 μs
t
S(OFF)
STAT Pin Current Turn-Off Time V
IN
= 3.6V, from ENB Rising 0.8 μs
ENB Inputs
V
ENBIH
ENB Inputs Rising Threshold Voltage V
ENB
Rising
l
540 600 mV
V
ENBIL
ENB Inputs Falling Threshold Voltage V
ENB
Falling
l
400 460 mV
V
ENBHYST
ENB Input Hysteresis V
ENBHYST
= (V
ENBIH
– V
ENBIL
)90mV
I
ENB
ENB Inputs Pull-Down Current V
OUT
< V
IN
= 3.6V, V
ENB
< V
IL
l
234 μA
OVI Input (LTC4413-2 Only)
V
OVIH
OVI Input Rising Threshold Voltage V
OVI
Rising 5.9 6.2 V
V
OVIL
OVI Input Falling Threshold Voltage V
OVI
Falling 5.4 5.6 V
V
OVID
OVI-OVP Voltage Drop V
OVI
= 8V, No Load at OVP 100 mV
I
OVI
OVI Bias Current V
OVI
= 8V 80 μA
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 LTC4413-1/LTC4413-2 are 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.
Note 3: Quiescent current increases with diode current: refer to plot of
I
QF
vs I
OUT
.
Note 4: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions.
Overtemperature protection will become active at a junction temperature
greater than the maximum operating temperature. Continuous operation
above the specifi ed maximum operating junction temperature may impair
device reliability.
Note 5: Specifi cation is guaranteed by correlation to wafer-level
measurements.
Note 6: Unless otherwise specifi ed, current into a pin is positive and
current out of a pin is negative. All voltages referenced to GND.