EXPOSED PAD (PIN 11) PCB GROUND CONNECTION OPTIONAL
T
JMAX
= 150°C,
θ
JA
= 43°C/W
MS10 PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 160°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC4368CDD-1#PBF
LTC4368CDD-2#PBF
LTC4368IDD-1#PBF
LTC4368IDD-2#PBF
LTC4368HDD-1#PBF
LTC4368HDD-2#PBF
LTC4368CMS-1#PBF
LTC4368CMS-2#PBF
LTC4368IMS-1#PBF
LTC4368IMS-2#PBF
LTC4368HMS-1#PBF
LTC4368HMS-2#PBF
TAPE AND REEL
LTC4368CDD-1#TRPBF
LTC4368CDD-2#TRPBF
LTC4368IDD-1#TRPBF
LTC4368IDD-2#TRPBF
LTC4368HDD-1#TRPBF
LTC4368HDD-2#TRPBF
LTC4368CMS-1#TRPBF
LTC4368CMS-2#TRPBF
LTC4368IMS-1#TRPBF
LTC4368IMS-2#TRPBF
LTC4368HMS-1#TRPBF
LTC4368HMS-2#TRPBF
PART MARKING*
LGTH
LGTK
LGTH
LGTK
LGTH
LGTK
LTGTG
LTGTJ
LTGTG
LTGTJ
LTGTG
LTGTJ
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
*Temperature grades are identified by a label on the shipping container. Consult ADI Marketing for parts specified with wider operating temperature ranges.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
2
Rev A
For more information
www.analog.com
LTC4368
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
V
IN(UVLO)
I
VIN
I
VIN(R)
PARAMETER
Input Voltage: Operating Range
Protection Range
Input Supply Undervoltage Lockout
Input Supply Current: On
Off
Reverse Input Supply Current
V
IN
Rising
SHDN = 2.5V,
SENSE = V
OUT
= V
IN
SHDN = 0V, SENSE = V
OUT
= V
IN
V
IN
= –40V, SENSE = V
OUT
= 0V
V
OUT
Rising, V
OUT
– SENSE = 100mV, V
IN
= 12V
V
IN
= 12V, V
OUT
:0V→12V, V
OUT
– SENSE = 100mV
SHDN = 2.5V,
SENSE = V
OUT
= V
IN
SHDN = 0V,
SENSE = V
OUT
= V
IN
V
IN
= –40V, SENSE = V
OUT
= 0V
SHDN = 2.5V,
SENSE = V
OUT
= V
IN
SHDN = 0V,
SENSE = V
OUT
= V
IN
V
IN
= –40V, SENSE = V
OUT
= 0V
V
OUT
= V
IN
V
IN
= 12V, V
OUT
= 0.5V
V
IN
= 12V, V
OUT
= 0V
LTC4368-1
LTC4368-2
V
OUT
= V
IN
V
OUT
= V
IN
V
IN
, V
OUT
, SENSE
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 2.5V to 60V, unless otherwise noted (Note 2). UV = 2.5V, OV = 0V,
SHDN = 2.5V,
SENSE = V
OUT
= V
IN
unless otherwise specified.
CONDITIONS
MIN
2.5
–40
1.8
2.2
30
5
–1.5
1.8
40
2.2
120
50
3
20
1.2
0.1
1
40
40
30
–42
–1
75
20
3
7.2
10
–20
40
30
150
22
3
50
50
50
–50
–3
100
50
4
8.7
11
–35
90
60
2
275
32
8
TYP
MAX
60
100
2.4
100
25
–2.5
2.4
280
125
20
50
2
2
10
60
60
70
–58
–5
125
125
5.5
10.8
13.1
–60
160
90
6
575
45
18
UNITS
V
V
V
µA
µA
mA
V
µs
µA
µA
µA
µA
µA
µA
mV
mV
mV
mV
mV
mV
mV
V
V
V
µA
µA
mA
µs
µs
ms
µs
V
OUT(UVLO)
V
OUT
Undervoltage Lockout
t
VOUT(UVLO)
V
OUT
Undervoltage Lockout Delay
I
VOUT
V
OUT
Input Current:
On
Off
Reverse
l
l
l
l
l
Current Sense
I
SENSE
ΔV
SENSE,F
ΔV
SENSE,R
ΔV
RR
GATE
ΔV
GATE
I
GATE(UP)
I
GATE(FAST)
t
D(FAST)
t
D(SLOW)
t
D(ON)
t
p(GATE)
Gate Drive (GATE – V
OUT
)
Gate Pull Up Current
Gate Fast Pull Down Current
Gate Fast Turn Off Delay
Gate Slow Turn Off Delay
Gate Turn-On Delay Time
Overcurrent Fault Propagation Delay
V
IN
= 2.5V, I
GATE
= 0µA, –1µA
V
IN
= 5V, I
GATE
= 0µA, –1µA
V
IN
= 12V to 60V, I
GATE
= 0µA, –1µA
GATE = 15V, V
IN
= 12V
GATE = 20V, V
IN
= 12V
GATE = 20V, SENSE = V
IN
= 12V
C
GATE
= 2.2nF: UV, OV Fault
C
GATE
= 2.2nF,
SHDN
Falling, V
IN
= 12V
V
IN
= 12V, Power Good to ΔV
GATE
> 0V
C
GATE
= 2.2nF, Overcurrent Fault to ΔV
GATE
= 0V
SENSE – V
OUT
: 0 to +100mV, or
SENSE – V
OUT
: 0 to –100mV (LTC4368-1)
SENSE – V
OUT
: 0 to –10mV (LTC4368-2)
l
l
l
l
l
l
l
l
SENSE Input Current: On
Off
Reverse
Overcurrent Fault Threshold, Forward
(SENSE – V
OUT
)
Overcurrent Fault Threshold, Reverse
(SENSE – V
OUT
)
Reverse Overcurrent Re-Enable
Turn-On Threshold (V
IN
– V
OUT
)
l
l
l
l
l
l
l
l
l
l
V
IN
= SENSE = 6V to 60V
V
IN
= SENSE = 2.5V to <6V
I
GATE(SLOW)
Gate Slow Pull Down Current
l
l
For more information
www.analog.com
3
Rev A
LTC4368
ELECTRICAL CHARACTERISTICS
SYMBOL
UV, OV
V
UV
V
OV
V
UVHYST
V
OVHYST
I
LEAK
t
FAULT
SHDN
V
SHDN
I
SHDN
t
START
t
SHDN(F)
t
LOWPWR
FAULT
V
OL
I
FAULT
RETRY
V
RETRY
I
RETRY
t
CLEAR
t
RETRY
Configuration Threshold for GATE
Latch-Off
Output Current for RETRY Timer
Minimum
SHDN
Pulse to Clear Forward
Overcurrent RETRY Latch
Forward Overcurrent Cool-Down Delay
RETRY Falling to ΔI
RETRY
> 2µA
V
IN
= 12V
RETRY = 2V, V
IN
= 12V
RETRY = 0V, V
IN
= 12V
RETRY = 0V, V
IN
= 12V
FAULT
Asserted to
FAULT
Released, C
RETRY
= 22nF
SENSE = V
OUT
= V
IN
= 12V
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 2.5V to 60V, unless otherwise noted (Note 2). UV = 2.5V, OV = 0V,
SHDN = 2.5V,
SENSE = V
OUT
= V
IN
unless otherwise specified.
PARAMETER
UV Input Threshold Voltage
OV Input Threshold Voltage
UV Input Hysteresis
OV Input Hysteresis
UV, OV Leakage Current
UV, OV Fault Propagation Delay
SHDN
Input Threshold
SHDN
Input Current
Delay Coming Out of Shutdown Mode
SHDN
To
FAULT
Asserted
Delay From Turn Off to Low Power
Operation
FAULT
Output Voltage Low
FAULT
Leakage Current
V = 0.5V, V
IN
= 60V
Overdrive = 50mV, V
IN
= 12V
SHDN
Falling
SHDN = 10V,
V
IN
= 60V
SHDN
Rising to
FAULT,
V
IN
= 12V
V
IN
= 12V
V
IN
= 12V
CONDITIONS
UV Falling
OV Rising
l
l
l
l
l
l
MIN
492.5
492.5
20
20
TYP
500
500
25
25
1
MAX
507.5
507.5
32
32
±10
2
1.2
±15
1400
3
48
UNITS
mV
mV
mV
mV
nA
µs
V
nA
µs
µs
ms
l
l
l
l
l
0.4
400
20
0.75
800
1.5
32
I
FAULT
= 500µA, V
IN
= 12V
FAULT = 5V,
V
IN
= 60V
l
l
0.15
0.4
±20
V
nA
V
µA
µA
µs
0.5
2.5
–10
15
80
1
3.5
–17
1.5
4.5
–25
120
150
ms
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.
All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3.
These pins can be tied to voltages below –0.3V through a resistor
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