LTC4214-2IMS データシートの表示（PDF） - Linear Technology
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LTC4214-2IMS Datasheet PDF : 32 Pages
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LTC4214-1/LTC4214-2
ABSOLUTE AXI U RATI GS
All Voltages Referred to VEE (Note 1)
VIN ............................................................ – 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
UW U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
TOP VIEW
VIN 1
PWRGD 2
SS 3
SENSE 4
VEE 5
10 TIMER
9 UV
8 OV
7 DRAIN
6 GATE
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 160°C/W
LTC4214-1CMS
LTC4214-2CMS
LTC4214-1IMS
LTC4214-2IMS
MS PART MARKING
LTABH
LTABK
LTABJ
LTABL
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, UV = OV = 2.5V unless otherwise noted. (Note 2)
SYMBOL
VIN
IIN
VLKO
VLKH
VCB
VACL
VFCL
VSS
RSS
ISS
PARAMETER
Supply Voltage
VIN Supply Current
VIN Undervoltage Lockout
VIN Undervoltage Lockout Hysteresis
Circuit Breaker Current Limit Voltage
Analog Current Limit Voltage
Fast Current Limit Voltage
SS Voltage
SS Output Impedance
SS Pin Current
VOS
Analog Current Limit Offset Voltage
VACL+VOS Ratio (VACL + VOS) to SS Voltage
VSS
IGATE
GATE Pin Output Current
VGATE
VGATEH
VGATEL
VUVHI
VUVHST
VOVHI
VOVHST
External MOSFET Gate Drive
Gate High Threshold
Gate Low Threshold
UV Pin Threshold
UV Pin Hysteresis
OV Pin Threshold
OV Pin Hysteresis
CONDITIONS
MIN TYP MAX UNITS
q6
16
V
UV = OV = 2.5V
q
0.8
2
mA
Coming Out of UVLO (Rising VIN)
q
5.1
5.6
V
0.3
V
VCB = (VSENSE – VEE)
VACL = (VSENSE – VEE), SS = Open
VFCL = (VSENSE – VEE)
After End of SS Timing Cycle
q 44
50
56
mV
q 60
70
80
mV
q 150
200
300
mV
1.6
V
73
kΩ
UV = OV = 2.5V, VSENSE = VEE, VSS = 0V (Sourcing)
– 22
µA
UV = OV = 0V, VSENSE = VEE, VSS = 1V (Sinking)
14
mA
10
mV
0.05
V/V
VSENSE = VEE, VGATE = 0V (Sourcing)
VSENSE – VEE = 0.15V, VGATE = 3V (Sinking)
VSENSE – VEE = 0.3V, VGATE = 1V (Sinking)
VGATE – VEE
VGATEH = VIN – VGATE for PWRGD Status
(Before Gate Ramp-Up)
UV Rising
OV Rising
q –30 –50 –70
µA
17
mA
190
mA
q 10
11
12
V
2.8
V
0.5
V
q 2.137 2.25 2.363
V
q 0.22 0.25 0.28
V
q 2.85
3
3.15
V
q 0.12 0.15 0.18
V
421412f
2
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