LTC4008 datasheet(2/24 Pages) LINER

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LTC4008

4008fa

Voltage from DCIN, CLP, CLN to GND ....... +32V/–0.3 V

PGND with Respect to GND ..................................

±0.3V

CSP, BAT to GND ........................................ +28V/–0.3V

VFB, RT to GND ............................................. +7V/–0.3V

NTC ............................................................. +10V/–0.3V

ACP/SHDN, FLAG, FAULT, ICL .................... +32V/–0.3V

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

ORDER PART

NUMBER

LTC4008EGN

TJMAX = 125°C, θJA = 90°C/W

Consult LTC Marketing for parts specified with wider operating temperature ranges.

GN PACKAGE

20-LEAD NARROW PLASTIC SSOP

TOP VIEW

INFET

BGATE

PGND

TGATE

CLP

CLN

FLAG

BATMON

BAT

CSP

DCIN

ICL

ACP/SHDN

FAULT

GND

VFB

NTC

ITH

PROG

CLP to CLN ........................................................... +0.5V

Operating Ambient Temperature Range

(Note 4) ...............................................–40

°C to 85°C

Operating Junction Temperature ...........–40

°C to 125°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

(Note 1)

ORDER PART

NUMBER

LTC4008EGN-1

The

● denotes specifications which apply over the full operating

temperature range (Note 4), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DCIN Operating Range

628

Operating Current

Charging Sum of Current from CLP, CLN, DCIN

VTOL

Voltage Accuracy

(Notes 2, 5)

–0.8

0.8

●

–1.0

1.0

BATMON Error (Note 5)

Measured from BAT to BATMON,

RLOAD = 100k

ITOL

Charge Current Accuracy (Note 3)

VCSP – VBAT Target = 100mV

– 4

●

–5

Shutdown

Battery Leakage Current

DCIN = 0V (LTC4008 Only)

●

µA

ACP/SHDN = 0V

●

–10

µA

UVLO

Undervoltage Lockout Threshold

DCIN Rising, VBAT = 0V

●

4.2

4.7

5.5

Shutdown Threshold at ACP/SHDN

●

1.6

2.5

Operating Current in Shutdown

VSHDN = 0V, Sum of Current from CLP,

CLN, DCIN

TJMAX = 125°C, θJA = 90°C/W

GN PACKAGE

20-LEAD NARROW PLASTIC SSOP

TOP VIEW

BGATE

PGND

TGATE

CLP

CLN

FLAG

BATMON

BAT

CSP

DCIN

ICL

SHDN

FAULT

GND

VFB

NTC

ITH

PROG

THE LTC4008EGN-1

Does Not Have the

Input FET Function

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/

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