LM3420 Datasheet, PDF (5/26 Pages) Texas Instruments – 8.4-V Li-Ion Battery Charge Controller

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LM3420
SNVS116E – MAY 1998 – REVISED DECEMBER 2014
6.5 LM3420 Electrical Characteristics
Unless otherwise specified, specifications apply over full operating temperature range and V_IN = V_REG, V_OUT = 1.5 V.
PARAMETER
TEST CONDITIONS
MIN ⁽¹⁾
TYP ⁽²⁾
MAX ⁽¹⁾
UNIT
V_REG
I_Q
G_m
A_V
V_SAT
I_L
R_f
Regulation voltage
Regulation voltage
tolerance
Quiescent current
Transconductance
ΔI_OUT/ΔV_REG
Voltage gain
ΔV_OUT/ΔV_REG
Output saturation⁽⁴⁾
Output leakage current
Internal feedback
resistor ⁽⁵⁾
I_OUT = 1 mA, T_J = 25°C
I_OUT = 1 mA
I_OUT = 1 mA, T_J = 25°C
I_OUT = 1 mA
I_OUT = 1 mA, T_J = 25°C
I_OUT = 1 mA
20 μA ≤ I_OUT ≤ 1 mA, V_OUT = 6 V
T_J = 25°C
20 μA ≤ I_OUT ≤ 1 mA, V_OUT = 6 V
1 mA ≤ I_OUT ≤ 15 mA, V_OUT = 6 V
1 mA ≤ I_OUT ≤ 15 mA, V_OUT = 6 V
1 V ≤ V_OUT ≤ V_REG − 1.2V, R_L = 470 Ω⁽³⁾
T_J = 25°C
1 V ≤ V_OUT ≤ V_REG − 1.3 V, R_L = 470 Ω
1 V ≤ V_OUT ≤ V_REG − 1.2 V, R_L = 5 kΩ⁽³⁾
T_J = 25°C
1 V ≤ V_OUT ≤ V_REG − 1.3 V, R_L = 5 kΩ
V_IN = V_REG + 100 mV
T_J = 25°C
V_IN = V_REG + 100 mV
V_IN = V_REG − 100 mV, V_OUT = 0 V
T_J = 25°C
V_IN = V_REG − 100 mV, V_OUT = 0 V
T_J = 25°C
8.316
8.232
–1%
–2%
1
0.50
2.5
1.4
450
200
1000
700
135
8.4
8.4
85
85
3.3
3.3
6
6
1000
1000
3500
3500
1
1
0.1
0.1
181
8.484
V
8.568
1%
2%
125
μA
150
mA/mV
V/V
V/V
1.2
V
1.3
0.5
μA
1
227
kΩ
E_n
Output noise voltage
I_OUT = 1 mA, 10 Hz ≤ f ≤ 10 kHz
140
μV_RMS
(1) Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using
Statistical Quality Control (SQC) methods. The limits are used to calculate Averaging Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely parametric norm.
(3) Actual test is done using equivalent current sink instead of a resistor load.
(4) V_SAT = V(IN) − V_OUT, when the voltage at the IN pin is forced 100 mV above the nominal regulating voltage (V_REG).
(5) See Application and Implementation and Typical Characteristics sections for information on this resistor.
Copyright © 1998–2014, Texas Instruments Incorporated
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