LTC4214-1/LTC4214-2
2
421412f
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Supply Voltage ● 616V
I
IN
V
IN
Supply Current UV = OV = 2.5V ● 0.8 2 mA
V
LKO
V
IN
Undervoltage Lockout Coming Out of UVLO (Rising V
IN
) ● 5.1 5.6 V
V
LKH
V
IN
Undervoltage Lockout Hysteresis 0.3 V
V
CB
Circuit Breaker Current Limit Voltage V
CB
= (V
SENSE
– V
EE
) ● 44 50 56 mV
V
ACL
Analog Current Limit Voltage V
ACL
= (V
SENSE
– V
EE
), SS = Open ● 60 70 80 mV
V
FCL
Fast Current Limit Voltage V
FCL
= (V
SENSE
– V
EE
) ● 150 200 300 mV
V
SS
SS Voltage After End of SS Timing Cycle 1.6 V
R
SS
SS Output Impedance 73 kΩ
I
SS
SS Pin Current UV = OV = 2.5V, V
SENSE
= V
EE
, V
SS
= 0V (Sourcing) –22 µA
UV = OV = 0V, V
SENSE
= V
EE
, V
SS
= 1V (Sinking) 14 mA
V
OS
Analog Current Limit Offset Voltage 10 mV
V
ACL
+V
OS
Ratio (V
ACL
+ V
OS
) to SS Voltage 0.05 V/V
V
SS
I
GATE
GATE Pin Output Current V
SENSE
= V
EE
, V
GATE
= 0V (Sourcing) ● –30 –50 –70 µA
V
SENSE
– V
EE
= 0.15V, V
GATE
= 3V (Sinking) 17 mA
V
SENSE
– V
EE
= 0.3V, V
GATE
= 1V (Sinking) 190 mA
V
GATE
External MOSFET Gate Drive V
GATE
– V
EE
● 10 11 12 V
V
GATEH
Gate High Threshold V
GATEH
= V
IN
– V
GATE
for PWRGD Status 2.8 V
V
GATEL
Gate Low Threshold (Before Gate Ramp-Up) 0.5 V
V
UVHI
UV Pin Threshold UV Rising ● 2.137 2.25 2.363 V
V
UVHST
UV Pin Hysteresis ● 0.22 0.25 0.28 V
V
OVHI
OV Pin Threshold OV Rising ● 2.85 3 3.15 V
V
OVHST
OV Pin Hysteresis ● 0.12 0.15 0.18 V
V
IN
............................................................ –0.3V to 17V
Input/Output Pins
(Except SENSE and DRAIN) Voltage ..........–0.3V to 17V
SENSE Pin Voltage ................................... –0.6V to 17V
Current Out of SENSE Pin (20µs Pulse)........... –200mA
DRAIN Pin Minimum Voltage .............................. –0.3V
Current into DRAIN Pin (100µs Pulse) ................... 5mA
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range
LTC4214-1C/LTC4214-2C ....................... 0°C to 70°C
LTC4214-1I/LTC4214-2I ................... –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
MS PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTABH
LTABK
LTABJ
LTABL
LTC4214-1CMS
LTC4214-2CMS
LTC4214-1IMS
LTC4214-2IMS
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
All Voltages Referred to V
EE
(Note 1)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, UV = OV = 2.5V unless otherwise noted. (Note 2)
T
JMAX
= 125°C, θ
JA
= 160°C/W
1
2
3
4
5
V
IN
PWRGD
SS
SENSE
V
EE
10
9
8
7
6
TIMER
UV
OV
DRAIN
GATE
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
