LTC1728(Old_V) データシートの表示（PDF） - Linear Technology
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LTC1728
(Rev.:Old_V)
(Rev.:Old_V)
Linear Technology
LTC1728 Datasheet PDF : 16 Pages
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LTC1727/LTC1728
ABSOLUTE AXI U RATI GS (Notes 1, 2)
VCC3, VCC5/VCC25/VCC18, VCCA ................... – 0.3V to 7V
RST ........................................................... – 0.3V to 7V
COMPA, COMP3, COMP25/COMP5
(MS8 and SO-8 Only) ............................ – 0.3V to 7V
Operating Temperature Range
(Note 3) ............................................. – 40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C
PACKAGE/ORDER I FOR ATIO
VCC3 1
VCC5/VCC25 2
VCCA 3
GND 4
TOP VIEW
8 COMP3
7 COMP25/COMP5
6 RST
5 COMPA
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 200°C/W
TOP VIEW
VCC3 1
VCC5/
VCC25
2
VCCA 3
GND 4
8 COMP3
7
COMP25/
COMP5
6 RST
5 COMPA
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 150°C/W
TOP VIEW
RST 1
5 VCC3
GND 2
VCCA 3
VCC5/
4 VCC25/
VCC18
S5 PACKAGE
5-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 250°C/W
ORDER
MS8
ORDER
S8
ORDER
S5
PART NUMBER PART MARKING PART NUMBER PART MARKING PART NUMBER PART MARKING
LTC1727EMS8-2.5
LTC1727EMS8-5
LTHY
LTHX
Consult factory for Military grade parts.
LTC1727ES8-2.5
LTC1727IS8-2.5
LTC1727ES8-5
LTC1727IS8-5
172725
727I25
17275
1727I5
LTC1728ES5-1.8
LTC1728ES5-2.5
LTC1728ES5-5
LTPH
LTIA
LTHZ
ELECTRICAL CHARACTERISTICS All except LTC1728-1.8. The q denotes specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. VCC3 = 3.3V, VCC5 = 5V, VCC25 = 2.5V, VCCA = VCC3 unless
otherwise noted.
SYMBOL
VRT3
VRT5
VRT25
VRTA
VCCOP
VCCOPA
PARAMETER
Reset Threshold VCC3
Reset Threshold VCC5
Reset Threshold VCC25
Reset Threshold VCCA
VCC3, VCC5/VCC25 Operating Voltage
VCC3, VCC5/VCC25 Operating Voltage
IVCC3
VCC3 Supply Current
IVCC25
IVCC5
IVCCA
tRST
VCC25 Supply Current
VCC5 Supply Current
VCCA Input Current
Reset Pulse Width
CONDITIONS
MIN
VCC3 Input Threshold
q 3.036
VCC5 Input Threshold (5V Version)
q 4.600
VCC25 Input Threshold (2.5V Version)
q 2.300
VCCA Input Threshold
q 0.985
RST, COMP3, COMP5, COMP25 in Correct Logic State q 1
Minimum Supply Voltage to Guarantee COMPA
q
in Correct Logic State
VCC5/VCC25 > VCC3
VCC5/VCC25 < VCC3, VCC3 = 3.3V (Note 4)
VCC25 < VCC3, VCC25 = 2.5V (Note 4)
VCC5 = 5V, VCC3 < VCC5
VCCA = 1V
RST Low with 10k Pull-Up to VCC3 (Note 5)
q
q
q
q
q – 15
q 140
TYP
3.086
4.675
2.338
1.000
2
1
10
1
10
0
200
MAX
3.135
4.750
2.375
1.015
7
2.3
2
20
2
20
15
280
UNITS
V
V
V
V
V
V
µA
µA
µA
µA
nA
ms
2
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