LM3420AM5-8.4 datasheet(6/26 Pages) TI1

No de pièce	LM3420AM5-8.4

Description	8.4-V Li-Ion Battery Charge Controller

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Fabricant	TI1 [Texas Instruments]

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LM3420

SNVS116E – MAY 1998 – REVISED DECEMBER 2014

www.ti.com

6.6 LM3420A Electrical Characteristics

Unless otherwise specified, specifications apply over full operating temperature range and VIN = VREG, VOUT = 1.5 V.

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

IOUT = 1 mA, TJ = 25°C

8.358

8.4

8.442

Regulation voltage

V

IOUT = 1 mA

8.316

8.4

8.484

VREG

IOUT = 1 mA, TJ = 25°C

–0.5%

0.5%

Regulation voltage

tolerance

IOUT = 1 mA

–1%

1%

IOUT = 1 mA, TJ = 25°C

85

110

IQ

Quiescent current

μA

IOUT = 1 mA

85

115

20

μA ≤ IOUT ≤ 1 mA, VOUT = 6 V

1.3

3.3

TJ = 25°C

Transconductance

20

μA ≤ IOUT ≤ 1 mA, VOUT = 6 V

0.75

3.3

Gm

mA/mV

ΔIOUT/ΔVREG

1 mA

≤ IOUT ≤ 15 mA, VOUT = 6 V

3

6

1 mA

≤ IOUT ≤ 15 mA, VOUT = 6 V

1.5

6

1 V

≤ VOUT ≤ VREG − 1.2 V, RL = 470 Ω

(3)

550

1000

TJ = 25°C

V/V

1 V

≤ VOUT ≤ VREG − 1.3 V, RL = 470 Ω

250

1000

Voltage gain

AV

ΔVOUT/ΔVREG

1 V

≤ VOUT ≤ VREG − 1.2 V, RL = 5 kΩ

(3)

1500

3500

TJ = 25°C

V/V

1 V

≤ VOUT ≤ VREG − 1.3 V, RL = 5 kΩ

900

3500

VSAT

VIN = VREG + 100 mV

1

1.2

TJ = 25°C

Output saturation(4)

V

VIN = VREG + 100 mV

1

1.3

IL

VIN = VREG − 100 mV, VOUT = 0 V

0.1

0.5

TJ = 25°C

Output leakage current

μA

VIN = VREG − 100 mV, VOUT = 0 V

0.1

1

Internal feedback

k

Ω

Rf

TJ = 25°C

135

181

227

resistor(5)

En

Output noise voltage

IOUT = 1 mA, 10 Hz ≤ f ≤ 10 kHz

140

μVRMS

(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)

VSAT = VIN − VOUT, when the voltage at the IN pin is forced 100 mV above the nominal regulating voltage (VREG).

(5)

See Application and Implementation and Typical Characteristics sections for information on this resistor.

6

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