LTC4006EGN-2#TR Linear Technology, LTC4006EGN-2#TR Datasheet - Page 5

IC CHARGER BATTERY 4A 16-SSOP

LTC4006EGN-2#TR

Manufacturer Part Number
LTC4006EGN-2#TR
Description
IC CHARGER BATTERY 4A 16-SSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC4006EGN-2#TR

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
6 V ~ 28 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-SSOP (0.150", 3.90mm Width)
Output Current
4A
Output Voltage
12.6V
Operating Supply Voltage (min)
6V
Operating Supply Voltage (max)
28V
Operating Temp Range
-40C to 85C
Package Type
SSOP N
Mounting
Surface Mount
Pin Count
16
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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DCIN (Pin 1): External DC Power Source Input. Bypass
this pin with at least 0.01µF. See Applications Information
section.
CHG (Pin 2): Open-Drain Charge Status Output. When the
battery is being charged, the CHG pin is pulled low by an
internal N-channel MOSFET. When the charge current
drops below 10% of programmed current, the N-channel
MOSFET turns off and a 25µA current source is connected
from the CHG pin to GND. When the timer runs out or the
input supply is removed, the current source will be discon-
PI FU CTIO S
TYPICAL PERFOR A CE CHARACTERISTICS
U
U
1V/(DIV)
V
STATE
FLOAT
LOAD
100
95
90
85
80
75
U
LOAD CURRENT = 1A, 2A, 3A
DCIN = 20V
LTC4006-2
Efficiency at 19VDC V
Disconnect/Reconnect Battery
(Load Dump)
0.50
DISCONNECT
W
3A STEP
1A STEP
1.00
CHARGING CURRENT (A)
LTC4006-4
U
1.50
LTC4006-2
3A STEP
RECONNECT
1A STEP
2.00
IN
2.50
4006 G04
4006 G07
3.00
nected and the CHG pin is forced into a high impedance
state. A pull-up resistor is required. The timer function is
defeated by forcing this pin below 1V (or connecting it to
GND).
ACP/SHDN (Pin 3): Open-Drain Output used to indicate if
the AC adapter voltage is adequate for charging. Active
high digital output. Internal 10µA pull-up to 3.5V. The
charger can also be inhibited by pulling this pin below 1V.
Reset the charger by pulsing the pin low for a minimum of
0.1µs.
100
40
35
30
25
20
15
10
95
90
85
80
75
5
0
0
Battery Leakage Current vs
Battery Voltage
LTC4006-2 Efficiency with
15VDC V
VDCIN = 0V
0.50
5
1.00
CHARGING CURRENT (A)
BATTERY VOLTAGE (V)
IN
10
1.50
15
2.00
20
2.50
25
4006 G05
4006 G08
3.00
30
LTC4006
4006fa
5

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