LT1110CS8-5 Просмотр технического описания (PDF) - Linear Technology
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LT1110CS8-5 Datasheet PDF : 16 Pages
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LT1110
ELECTRICAL CHARACTERISTICS TA = 25°C, VIN = 1.5V, unless otherwise noted.
SYMBOL
VCESAT
AV
IREV
ILIM
ILEAK
VSW2
PARAMETER
Switch Saturation Voltage
Step-Up Mode
CONDITIONS
VIN = 1.5V, ISW = 400mA
VIN = 1.5V, ISW = 500mA
A2 Error Amp Gain
Reverse Battery Current
Current Limit
Current Limit Temperature
Coefficient
Switch OFF Leakage Current
Maximum Excursion Below GND
VIN = 5V, ISW = 1A
RL = 100kΩ (Note 3)
(Note 4)
220Ω Between ILIM and VIN
Measured at SW1 Pin
ISW1 ≤ 10µA, Switch Off
MIN
q
q
q
1000
TYP
300
400
700
5000
750
400
– 0.3
1
– 400
MAX
400
600
550
750
1000
10
– 350
UNITS
mV
mV
mV
mV
mV
V/V
mA
mA
%/°C
µA
mV
The q denotes the specifications which apply over the full operating
temperature range.
Note 1: This specification guarantees that both the high and low trip point
of the comparator fall within the 210mV to 230mV range.
Note 2: This specification guarantees that the output voltage of the fixed
versions will always fall within the specified range. The waveform at the
sense pin will exhibit a sawtooth shape due to the comparator hysteresis.
Note 3: 100kΩ resistor connected between a 5V source and the AO pin.
Note 4: The LT1110 is guaranteed to withstand continuous application of
+1.6V applied to the GND and SW2 pins while VIN, ILIM, and SW1 pins are
grounded.
TYPICAL PERFOR A CE CHARACTERISTICS
Oscillator Frequency
100
90
80
70
60
50
40
–50 –25
0 25 50 75 100
TEMPERATURE (°C)
LT1110 • TPC01
Oscillator Frequency
80
78
76
74
72
70
68
66
64
62
60
0 3 6 9 12 15 18 21 24 27 30
INPUT VOLTAGE (V)
LT1110 • TPC02
Switch On Time
14
13
12
11
10
9
8
7
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
LT1110 • TPC03
3
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