Datasheet Linear Technology LTC4008

Manufacturer	Linear Technology
Series	LTC4008

4A, High Efficiency, Multi-Chemistry Battery Charger

Datasheets

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PDF, 232 Kb, Revision: B, File uploaded: Oct 2, 2017

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Packaging

	LTC4008EGN#PBF	LTC4008EGN#TRPBF	LTC4008EGN-1#PBF	LTC4008EGN-1#TRPBF
N	1	2	3	4
Package	SSOP-20 Package Outline Drawing	SSOP-20 Package Outline Drawing	SSOP-20 Package Outline Drawing	SSOP-20 Package Outline Drawing
Package Code	GN	GN	GN	GN
Package Index	05-08-1641 (GN20)	05-08-1641 (GN20)	05-08-1641 (GN20)	05-08-1641 (GN20)
Pin Count	20	20	20	20

Parametrics

Parameters / Models	LTC4008EGN#PBF	LTC4008EGN#TRPBF	LTC4008EGN-1#PBF	LTC4008EGN-1#TRPBF
Battery Chemistry	Li-Ion, Li-Polymer, NiCd, NiMH, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, NiCd, NiMH, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, NiCd, NiMH, LiFePO4, Lead Acid	Li-Ion, Li-Polymer, NiCd, NiMH, LiFePO4, Lead Acid
Charge Termination	Microcontroller	Microcontroller	Microcontroller	Microcontroller
Export Control	no	no	no	no
Float Voltage, V	Adj	Adj	Adj	Adj
Internal Pass Element	no	no	no	no
Max Charge Current, A	4	4	4	4
Number of Cells	1 to 6 (Li), 4 to 18 (Ni)	1 to 6 (Li), 4 to 18 (Ni)	1 to 6 (Li), 4 to 18 (Ni)	1 to 6 (Li), 4 to 18 (Ni)
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85
Type of Charger	Switching	Switching	Switching	Switching
Vin Max, V	28	28	28	28
Vin Min, V	6	6	6	6

Eco Plan

	LTC4008EGN#PBF	LTC4008EGN#TRPBF	LTC4008EGN-1#PBF	LTC4008EGN-1#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

Articles

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Next Generation No Compromise Battery Chargers &mdash LT Journal
PDF, 183 Kb, File published: Mar 1, 2003
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DESIGN FEATURES Next Generation No Compromise
by Mark Gurries
Battery Chargers
Introduction
Until now, a fully-featured high power
battery charger simply did not exist
in a single IC. No one had succeeded
in squeezing a charger into a small
package without compromising some
functionality, such as wide voltage
range, current range, accuracy, low
external part count, or efficiency.
For instance, some single-IC chargers focus on the analog PWM power
control side of charging while others
just perform the charge termination
function. None offered it all in one
package, until now.
Linear Technology introduces a
family of complete single-IC high power
battery charger solutions that do not
compromise any functionality for small
IC size. The new LTC4006, LTC4007
and LTC4008 series of battery chargers …
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Feature-Packed Charger Handles All Battery Chemistries and Produces 3A/50W for Fast Charging from a 4mm × 4mm QFN &mdash LT Journal
PDF, 475 Kb, File published: Sep 23, 2008
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LвЂ‰DESIGN FEATURES Feature-Packed Charger Handles
All Battery Chemistries and Produces
3A/50W for Fast Charging from a
4mm Г— 4mm QFN
by James A. McKenzie
Introduction
The LTC4009, LTC4009-1 and
LTC4009-2 are a family of high power
battery charger ICs that achieve a small
circuit size and high performance without compromising functionality. The
family operates with high efficiency
while packing the most desirable
charging and protection features into
a space-efficient 20-lead 4mm Г— 4mm
QFN package. When combined with
just a few external components and
termination control, the LTC4009
family facilitates construction of
chargers capable of delivering up to
3A to batteries with output power
levels approaching 50W. These ICs are especially well-suited to implementing
microprocessor-controlled chargers
for all chemistry types, including …

Model Line

Series: LTC4008 (4)

LTC4008EGN#PBF LTC4008EGN#TRPBF LTC4008EGN-1#PBF LTC4008EGN-1#TRPBF

Manufacturer's Classification

Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers