LM2682M National Semiconductor, LM2682M Datasheet - Page 2

• Manufacturer Part Number: LM2682M
• Description: Switched Capacitor Voltage Doubling Inverter
• Manufacturer: National Semiconductor

www.national.com
V
I
R
f
f
IN
OSC
SW
POWER
VOLTAGE
IN
OUT
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The maximum power dissipation must be de-rated at elevated temperatures (only needed for T
ture),
maximum power dissipation at any temperature is:
PDiss
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
rectly into each pin.
Note 4: Typical numbers are at 25˚C and represent the most likely norm.
Note 5: The output switches operate at one half of the oscillator frequency, f
Note 6: The minimum specification is guaranteed by design and is not tested.
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM2682
Electrical Characteristics
typeface apply over the full operating ambient temperature range, −40˚C to +85˚C, limits with standard typeface apply for T
Symbol
Pin Description
= 25˚C.
Input Voltage (V
V
V
V
Storage Temperature
Lead Temperature Soldering
Power Dissipation (Note 2)
IN
OUT
OUT
MAX
dV/dT
J-A
Short-Circuit Duration
(junction to ambient thermal resistance) and T
= (T
JMAX
Supply Voltage Range
Supply Current
V
Oscillator Frequency
Switching Frequency
Power Efficiency
Voltage Conversion Efficiency
OUT
− T
IN
A
)
Source Resistance
)/
J-A
Parameter
up to the value listed in the Absolute Maximum Ratings.
Pin Number
1
2
3
4
5
6
7
8
−65˚C to +150˚C
A
V
(ambient temperature).
IN
Continuous
(Note 1)
= 5V and C
R
Open Circuit, No Load
I
I
(Note 5)
(Note 5)
R
L
L
Symbol
1V/µsec
L
L
= 5 mA, V
+300˚C
−11.6V
= 10 mA
V
GND
C
C
C
C
+5.8V
= 2 k
= 2k (Note 6)
V
NC
OUT
1
2
2
1
IN
−
+
−
+
Conditions
1
IN
OSC
= C
= 2 V
Capacitor C
Capacitor C
Capacitor C
Negative output voltage (−2V
Device ground
Power supply voltage
Capacitor C
No Connection
2
J-A
= 2f
2
resistor into each pin. The machine model is a 200pF capacitor discharged di-
is 140˚C/W for the SO-8 package and 220˚C/W for the MSOP-8 package. The
Operating Ratings
= C
SW
T
JMAX
.
MSOP-8
SO-8
3
ESD Susceptibility (Note 3)
Ambient Temp. Range
Junction Temp. Range
= 3.3µF unless otherwise specified. Limits with bold
Description
1
2
2
1
Human Body Model
Machine Model
negative terminal
positive terminal
negative terminal
positive terminal
A
>
85˚C) and is limited by T
Min
2.0
90
IN
(Note 4)
Typical
)
99.9
150
110
90
12
93
6
JMAX
(maximum junction tempera-
−40˚C to +125˚C
Max
−40˚C to +85˚C
300
400
150
200
250
5.5
30
15
200V
300 mW
470 mW
2 kV
+150˚C
Units
kHz
kHz
µA
%
%
V
A