OUT ............................................ –0.3V to V
DD
+ 0.3V
INTV
CC
.................................................. –0.3V to 3.5V
GATE (Note 3) ........................................ –0.3V to 33V
Operating Ambient Temperature Range
LTC4219C ................................................ 0°C to 70°C
LTC4219I .............................................–40°C to 85°C
Junction Temperature (Notes 4, 5)........................ 125°C
Storage Temperature Range .................. –65°C to 150°C
DHC PACKAGE
16-LEAD (5mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
q
JA
= 43°C/W
q
JA
= 43°C/W EXPOSED PAD SOLDERED, OTHERWISE
q
JA
= 140°C/W
orDer inFormaTion
LEAD FREE FINISH
LTC4219CDHC-12#PBF
LTC4219IDHC-12#PBF
LTC4219CDHC-5#PBF
LTC4219IDHC-5#PBF
TAPE AND REEL
LTC4219CDHC-12#TRPBF
LTC4219IDHC-12#TRPBF
LTC4219CDHC-5#TRPBF
LTC4219IDHC-5#TRPBF
PART MARKING*
421912
421912
42195
42195
PACKAGE DESCRIPTION
16-Lead (5mm
×
3mm) Plastic DFN
16-Lead (5mm
×
3mm) Plastic DFN
16-Lead (5mm
×
3mm) Plastic DFN
16-Lead (5mm
×
3mm) Plastic DFN
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
4219fd
For more information
www.linear.com/LTC4219
LTC4219
elecTrical characTerisTics
SYMBOL
V
DD
I
DD
V
DD(UVL)
V
OUT(PGTH)
DV
OUT(PGHYST)
I
OUT
PARAMETER
Input Supply Range
Input Supply Current
Input Supply Undervoltage Lockout
Output Power Good Threshold
Output Power Good Hysteresis
OUT Leakage Current
MOSFET On, No Load
V
DD
Rising
LTC4219-12, V
OUT
Rising
LTC4219-5, V
OUT
Rising
LTC4219-12
LTC4219-5
V
OUT
= V
GATE
= 0V, V
DD
= 15V
V
OUT
= V
GATE
= 12V, LTC4219-12
V
OUT
= V
GATE
= 5V, LTC4219-5
dV
GATE
/dt
R
ON
I
LIM(TH)
GATE Pin Turn-On Ramp Rate
MOSFET + Sense Resistor On Resistance
Current Limit Threshold
V
FB
= 1.23V
V
FB
= 0V
V
FB
= 1.23V, R
SET
= 20kΩ
Inputs
I
IN
R
FB
V
TH
DV
EN(HYST)
DV
FB(HYST)
R
ISET
EN1, EN2
Input Current
FB Input Resistance
EN1, EN2,
FB Threshold Voltage
EN1, EN2
Hysteresis
FB Power Good Hysteresis
I
SET
Internal Resistor
V
PIN
= 1.2V
LTC4219-12
LTC4219-5
V
PIN
Rising
l
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
DD
= 12V unless otherwise noted.
CONDITIONS
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
2.9
TYP
MAX
15
UNITS
V
mA
V
V
V
mV
mV
µA
µA
µA
V/ms
mW
A
A
A
µA
kΩ
kΩ
V
mV
mV
kW
DC Characteristics
1.6
2.65
10.2
4.2
127
53
50
26
0.15
15
5.0
1.2
2.6
2.73
10.5
4.35
170
71
0
70
36
0.3
33
5.6
1.5
2.9
0
13
20
1.21
50
10
19
18
29
1.235
80
20
20
3
2.85
10.8
4.5
213
89
±150
90
46.5
0.55
50
6.1
1.8
3.3
±1
23
37
1.26
110
30
21
4219fd
For more information
www.linear.com/LTC4219
3
LTC4219
elecTrical characTerisTics
SYMBOL
Outputs
V
INTVCC
V
OL
I
OH
V
TIMER(H)
V
TIMER(L)
I
TIMER(UP)
I
TIMER(DN)
I
TIMER(RATIO)
A
IMON
BW
IMON
I
OFF(IMON)
I
GATE(UP)
I
GATE(DN)
I
GATE(FST)
t
PHL(GATE)
t
PHL(ILIM)
t
D(ON)
t
D(FAULT)
t
D(CB)
INTV
CC
Output Voltage
PG,
FLT
Output Low Voltage
PG,
FLT
Input Leakage Current
TIMER High Threshold
TIMER Low Threshold
TIMER Pull-Up Current
TIMER Pull-Down Current
TIMER Current Ratio I
TIMER(DN)
/I
TIMER(UP)
I
MON
Current Gain
I
MON
Bandwidth
I
MON
Offset Current
Gate Pull-Up Current
Gate Pull-Down Current
Gate Fast Pull-Down Current
Input High (EN1,
EN2)
to Gate Low
Propagation Delay
Short Circuit to Gate Low
Turn-On Delay
EN1
High to Clear Fault Latch Delay
Circuit Breaker Filter Delay Time (Internal)
V
FB
= 0V, Step I
SENSE
to 3A
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 12V unless otherwise noted.
PARAMETER
CONDITIONS
V
DD
= 5V, 15V
I
LOAD
= 0mA, –10mA
I
SINK
= 2mA
V
PIN
= 30V
V
TIMER
Rising
V
TIMER
Falling
V
TIMER
= 0V
V
TIMER
= 1.2V
I
OUT
= 2.5A
I
OUT
= 150mA
Gate Drive On, V
GATE
= V
OUT
= 12V
Gate Drive Off, V
GATE
= 18V, V
OUT
= 12V
Fast Turn Off, V
GATE
= 18V, V
OUT
= 12V
V
GATE
< 16.5V Falling
V
FB
= 0, Step I
SENSE
to 6A,
V
GATE
< 15V Falling
Step V
EN1
and V
EN2
to 0V, V
GATE
> 13V
l
l
l
l
l
l
l
l
l
l
l
l
MIN
2.8
TYP
3.1
0.4
0
MAX
3.2
0.8
±10
1.28
0.3
–120
2.6
2.7
21.5
±4.5
–29
400
UNITS
V
V
µA
V
V
µA
µA
%
µA/A
kHz
µA
µA
µA
mA
1.2
0.1
–80
1.4
1.6
18.5
1.235
0.21
–100
2
2
20
250
0
l
l
l
–19
190
–24
250
140
8
1
AC Characteristics
10
5
150
2.7
µs
µs
ms
µs
ms
50
1.5
100
5
2
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 specified.
Note 3:
An internal clamp limits the GATE pin to a maximum of 6.5V
above OUT. Driving this pin to voltages beyond the clamp may damage the
device.
Note 4:
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
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