LM3420-42 Datasheet, PDF (3/17 Pages) National Semiconductor (TI) – Lithium-Ion Battery Charge Controller

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage V(IN)
Output Current
Junction Temperature
Storage Temperature
Lead Temperature
Vapor Phase (60 seconds)
Infrared (15 seconds)
Power Dissipation (T_A = 25˚C)
(Note 2)
20V
20 mA
150˚C
−65˚C to +150˚C
+215˚C
+220˚C
300 mW
ESD Susceptibility (Note 3)
Human Body Model
1500V
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for methods on soldering
surface-mount devices.
Operating Ratings (Notes 1, 2)
Ambient Temperature Range
Junction Temperature Range
Output Current
−40˚C ≤ T_A ≤ +85˚C
−40˚C ≤ T_J ≤ +125˚C
15 mA
LM3420-4.2
Electrical Characteristics
t^Su^pr^ee^cR^ifia^cn^atg^ioe^{n. sUwnliethssstoatnhdearwrdisteypsepefaccifeieda,reVf(oINr} )T=^J
= 25˚C, and
V_REG, V_OUT
those with
= 1.5V.
boldface
type
apply
over
full
Operating
Tempera-
Symbol
Parameter
Conditions
Typical LM3420A-4.2 LM3420-4.2
Units
(Note 4)
Limit
Limit
(Limits)
(Note 5)
(Note 5)
V_REG
Regulation Voltage I_OUT = 1 mA
4.2
V
4.221/4.242 4.242/4.284
V(max)
4.179/4.158 4.158/4.116
V(min)
Regulation Voltage
Tolerance
I_OUT = 1 mA
±0.5/±1
±1/±2
%(max)
I_q
Quiescent Current I_OUT = 1 mA
85
µA
110/115
125/150
µA(max)
G_m
A_V
V_SAT
I_L
R_f
Transconductance
∆I_OUT/∆V_REG
Voltage Gain
∆V_OUT/∆V_REG
Output Saturation
(Note 7)
Output Leakage
Current
Internal Feedback
Resistor (Note 8)
20 µA ≤ I_OUT ≤ 1 mA
V_OUT = 2V
1 mA ≤ I_OUT ≤ 15 mA
V_OUT = 2V
1V ≤ V_OUT ≤ V_REG − 1.2V (−1.3)
R_L = 200Ω (Note 6)
1V ≤ V_OUT ≤ V_REG − 1.2V (−1.3)
R_L = 2 kΩ
V(IN) = V_REG +100 mV
I_OUT = 15 mA
V(IN) = V_REG −100 mV
V_OUT = 0V
3.3
6.0
1000
3500
1.0
0.1
75
1.3/0.75
3.0/1.5
550/250
1500/900
1.2/1.3
0.5/1.0
94
1.0/0.50
2.5/1.4
450/200
1000/700
1.2/1.3
0.5/1.0
94
mA/mV
mA/mV(min)
mA/mV
mA/mV(min)
V/V
V/V(min)
V/V
V/V(min)
V
V(max)
µA
µA(max)
kΩ
kΩ(max)
56
56
kΩ(min)
E_n
Output Noise
Voltage
I_OUT = 1 mA, 10 Hz ≤ f ≤ 10 kHz
70
µV_RMS
3
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