1046 Ver la hoja de datos (PDF) - Linear Technology
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1046 Datasheet PDF : 12 Pages
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LTC1046
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage ....................................................... 6.5V
Input Voltage on Pins 1, 6 and 7
(Note 2) ............................ – 0.3 < VIN < (V +) + 0.3V
Current into Pin 6 .................................................. 20µA
Output Short Circuit Duration
(V + ≤ 6V) ............................................... Continuous
Operating Temperature Range
LTC1046C .................................... 0°C ≤ TA ≤ 70°C
LTC1046I ................................. – 40°C ≤ TA ≤ 85°C
LTC1046M .................................... – 55°C to 125°C
Storage Temperature Range ............... – 65°C to + 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
BOOST 1
CAP + 2
GND 3
CAP – 4
8 V+
7 OSC
6 LV
5 VOUT
J8 PACKAGE N8 PACKAGE
8-LEAD CERDIP 8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 160°C, θJA = 100°C (J8)
TJMAX = 110°C, θJA = 130°C (N8)
TJMAX = 150°C, θJA = 150°C (S8)
ORDER PART
NUMBER
LTC1046CN8
LTC1046CS8
LTC1046IN8
LTC1046IS8
LTC1046MJ8
S8 PART MARKING
1046
1046I
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V + = 5V, COSC = 0pF, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC1046C
MIN TYP MAX
LTC1046I/M
MIN TYP MAX
UNITS
IS
Supply Current
RL = ∞, Pins 1 and 7 No Connection
RL = ∞, Pins 1 and 7 No Connection,
V+ = 3V
165 300
35
165 300
µA
35
µA
V+L
Minimum Supply Voltage RL = 5kΩ
q 1.5
1.5
V
V+H
Maximum Supply Voltage RL = 5kΩ
q
6
6
V
ROUT Output Resistance
V+ = 5V, IL = 50mA (Note 3)
27
35
q
27
45
V+ = 2V, IL = 10mA
q
60
85
27
35
Ω
27
50
Ω
60
90
Ω
fOSC
Oscillator Frequency
V+ = 5V (Note 4)
V+ = 2V
20 30
20 30
kHz
4
5.5
4
5.5
kHz
PEFF
VOUTEFF
IOSC
Power Efficiency
Voltage Conversion
Efficiency
Oscillator Sink or Source
Current
RL = 2.4kΩ
RL = ∞
VOSC = 0V or V+
Pin 1 = 0V
Pin 1 = V+
95 97
95 97
%
97 99.9
97 99.9
%
q
4.2 35
q
15
45
4.2 40
µA
15
50
µA
Note 1: Absolute Maximum Ratings are those values beyond which
the life of the device may be impaired.
Note 2: Connecting any input terminal to voltages greater than V+ or
less than ground may cause destructive latch-up. It is recommended
that no inputs from sources operating from external supplies be
applied prior to power-up of the LTC1046.
Note 3: ROUT is measured at TJ = 25°C immediately after power-on.
Note 4: fOSC is tested with COSC = 100pF to minimize the effects of test
fixture capacitance loading. The 0pF frequency is correlated to this 100pF
test point, and is intended to simulate the capacitance at pin 7 when the
device is plugged into a test socket and no external capacitor is used.
2
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