LM3620 National Semiconductor, LM3620 Datasheet - Page 4

• Manufacturer Part Number: LM3620
• Description: Lithium-Ion Battery Charger Controller
• Manufacturer: National Semiconductor

www.national.com
V
V
I
I
I
Gm
I
Gm
R
R
Q
OFF
DRIVE
EXT
V
limits with standard typeface apply for T
REG
REG
LM3620-8
IN
F
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended 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 derated at elevated temperatures and is limited by T
(junction-to-ambient thermal resistance) and T
the value listed in the Absolute Maximum Ratings.
Note 3: Rating is for the human body model, a 100 pF capacitor discharged through a 1.5k
Note 4: Quiescent current is all current flowing to ground when the voltage at the V
Note 5: Off current is all of the current flowing to ground including all leakage current that would be drawn from the battery connected to the V
Note 6: When the External pin is being used as the driving source, it is recommended to keep the operating point of V
would bias I
DRIVE
Symbol
(DRIVE)
(EXT)
/V
DRIVE
= 5V, I
DRIVE
DRIVE
to conduct up to the current limit level continuously causing unnecessary power dissipation in the device.
Regulated Output Voltage (pin
1 to ground)
Regulated Output Voltage
Tolerance
Supply Sensitivity
Quiescent Current
Off State Current
Drive Pin Sink Current
Drive Pin Transconductance
External Pin Source Current
External Pin Transconductance
V
Feedback Resistance
REG
= 2mA. Limits with boldface type apply over the full operating ambient temperature range, 0˚C to + 70˚C,
Input Resistance
Parameter
A
(ambient temperature). The maximum power dissipation at any temperature is: PDiss
A
= 25˚C.
Pin 5 shorted to pin 1 (graphite
anode)
Pin 5 open (coke anode)
Either Pin 5 setting
V
V
V
V
2mA
V
0mA
Pin 1 to Ground.
Circuit biased with V
V
Pin 1 to Pin 5
REG
REG
DRIVE
DRIVE
I
EXT
I
DRIVE
DRIVE
EXT
/ V
= 1V (Note 6)
for 5V
= 8.7V, V
/ V
I
I
open circuited (Note 5)
= 5.0V
open circuited
DRIVE
EXT
REG
REG
Conditions
4
, V
2.5mA
V
15mA
EXT
EXT
REG
DRIVE
pin is forced to be above the nominal regulating voltage (V
= 1V
= 1.0V (Note 4)
DRIVE
resistor into each pin.
30V
applied
Typical
JMAX
EXT
2900
200
400
110
8.2
8.4
1.5
0.4
10
20
42
3
1V. If greater than 1V, the internal circuitry
(maximum junction temperature),
8.102/8.036
8.298/8.364
8.299/8.232
8.501/8.568
±
MAX
1.2/
Limit
750
200
2.5
15
= (T
±
2.0
JMAX
REG
− T
REG
terminal.
µV/V(max)
A
)/
µA(max)
nA(max)
mA(min)
mA(min)
).
V(max)
V(max)
V(min)
V(min)
Units
J-A
A/V
A/V
M
k
%
up to
J-A