LTC4260 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC4260 Datasheet PDF : 32 Pages
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ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC2945CUD#PBF
LTC2945CUD#TRPBF LFWK
12-Lead (3mm × 3mm) Plastic QFN
LTC2945IUD#PBF
LTC2945IUD#TRPBF
LFWK
12-Lead (3mm × 3mm) Plastic QFN
LTC2945CUD-1#PBF
LTC2945CUD-1#TRPBF LFYX
12-Lead (3mm × 3mm) Plastic QFN
LTC2945IUD-1#PBF
LTC2945IUD-1#TRPBF LFYX
12-Lead (3mm × 3mm) Plastic QFN
LTC2945CMS#PBF
LTC2945CMS#TRPBF 2945
12-Lead Plastic MSOP
LTC2945IMS#PBF
LTC2945IMS#TRPBF
2945
12-Lead Plastic MSOP
LTC2945CMS-1#PBF
LTC2945CMS-1#TRPBF 29451
12-Lead Plastic MSOP
LTC2945IMS-1#PBF
LTC2945IMS-1#TRPBF 29451
12-Lead Plastic MSOP
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
LTC2945
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD is from 4V to 80V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SUPPLIES
VDD
VINTVCC
IDD
VDD Supply Voltage Range
INTVCC Supply Voltage Range
VDD Supply Current
VDD = 48V, INTVCC Open
Shutdown
l
4
80
V
l 2.7
5.9
V
l
0.8
1.2
mA
l
40
70
μA
ICC
INTVCC Supply Current
INTVCC = VDD = 5V
Shutdown, INTVCC = VDD = 5V
l
0.6
0.9
mA
l
20
80
μA
ICCSRC
INTVCC Linear Regulator Output Current
VDD = 7V
l
–10
mA
VCC
INTVCC Linear Regulator Voltage
7V < VDD < 80V, ILOAD = 1mA
l 4.5
5
5.5
V
ΔVCC
INTVCC Linear Regulator Load Regulation 7V < VDD < 80V, ILOAD = 1mA to 10mA
l
100
200
mV
VCCZ
INTVCC Shunt Regulator Voltage
VDD = 48V, ICC = 1mA
l 5.9
6.3
6.7
V
ΔVCCZ
INTVCC Shunt Regulator Load Regulation VDD = 48V, ICC = 1mA to 35mA
l
250
mV
VCC(UVL)
INTVCC Supply Undervoltage Lockout
INTVCC Rising, VDD = INTVCC
l 2.2
2.6
2.69
V
VDD(UVL)
VDDI2C(RST)
VCCI2C(RST)
VDD Supply Undervoltage Lockout
VDD I2C Logic Reset
INTVCC I2C Logic Reset
VDD Rising, INTVCC Open
VDD Falling, INTVCC Open
INTVCC Falling, VDD = INTVCC
l 2.9
3.2
3.5
V
l
2
2.5
V
l 1.5
1.8
V
SENSE INPUTS
VCM
ISENSE+(HI)
SENSE+, SENSE– Common Mode Voltage
48V SENSE+ Input Current
SENSE+, SENSE–, VDD = 48V
Shutdown
l
0
80
V
l
100
150
μA
l
2
μA
ISENSE–(HI) 48V SENSE– Input Current
SENSE+, SENSE–, VDD = 48V
l
Shutdown
l
20
μA
1
μA
ISENSE+(LO) 0V SENSE+ Source Current
SENSE+, SENSE– = 0V VDD = 48V
l
Shutdown
l
–10
μA
–2
μA
ISENSE–(LO) 0V SENSE– Source Current
SENSE+, SENSE– = 0V, VDD = 48V
l
Shutdown
l
–5
μA
±1
μA
2945f
3
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