LM3620 Datasheet, PDF (3/6 Pages) National Semiconductor (TI) – Lithium-Ion Battery Charger Controller

Absolute Maximum Ratings (Note 1)
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Input Voltage (V_DRIVE)
V_EXT
Junction Temperature
Storage Temperature
Lead Temp. Soldering
Vapor Phase (60 sec.)
Infrared (15 sec.)
35V
1.5V
150˚C
−65 to +150˚C
215˚C
220˚C
Power Dissipation (T_A = 25˚C)
(Note 2)
ESD Susceptibility (Note 3)
Operating Ratings (Note 1)
Ambient Temp. Range
Junction Temp. Range
Thermal Resistance (Junction to
Ambient, θ_J-A)
Input Voltage (V_DRIVE)
300mW
2000V
0˚C to 70˚C
0˚C to 125˚C
280˚C/W
4V to 30V
Electrical Characteristics
LM3620-4
V_DRIVE = 5V, I_DRIVE = 2mA.
limits with standard typeface
Limits
apply
with boldface
for T_A = 25˚C.
type
apply
over
the
full
operating
ambient
temperature
range,
0˚C
to
+70˚C,
Symbol
Parameter
Conditions
Typical
Limit
Units
V_REG
Regulated Output Voltage (pin
1 to ground)
Pin 5 shorted to pin 1 (graphite
anode)
4.1
4.051/4.018
V(min)
4.149/4.182
V(max)
Pin 5 open (coke anode)
4.2
4.150/4.116
V(min)
V_REG/V_DRIVE
I_Q
I_OFF
I_DRIVE
Gm_(DRIVE)
Regulated Output Voltage
Tolerance
Supply Sensitivity
Quiescent Current
Off State Current
Drive Pin Sink Current
Drive Pin Transconductance
I_EXT
Gm_(EXT)
External Pin Source Current
External Pin Transconductance
R_IN
V_REG Input Resistance
R_F
Feedback Resistance
Either Pin 5 setting
V_REG for 5V ≤ V_DRIVE ≤ 30V
V_REG = 4.5V, V_EXT = 1.0V (Note 4)
V_DRIVE open circuited (Note 5)
V_DRIVE = 5.0V
∆I_DRIVE/∆V_REG
2mA ≤ I_DRIVE ≤15mA
V_EXT = 1V (Note 6)
∆I_EXT/∆V_REG, V_EXT = 1V
0mA ≤ I_EXT ≤ 2.5mA
Pin 1 to Ground.
Circuit biased with V_DRIVE applied
V_DRIVE open circuited
Pin 1 to Pin 5
4.250/4.284
±1.2/±2.0
V(max)
%
100
µV/V(max)
400
750
µA(max)
10
200
nA(max)
20
15
mA(min)
3
A/V
3
2.5
mA(min)
0.8
A/V
46
kΩ
42
MΩ
1500
Ω
3
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