LTC4001-1 Linear Technology, LTC4001-1 Datasheet - Page 2

• Manufacturer Part Number: LTC4001-1
• Description: 2A Synchronous Buck Li-Ion Charger
• Manufacturer: Linear Technology

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ABSOLUTE MAXIMUM RATINGS
LTC4001-1
(Note 1)
PV
SW, SENSE, BAT, BATSENS, SS, FAULT, CHRG, EN, NTC,
PROG, IDET, TIMER Voltage ........................ – 0.3V to 6V
Operating Temperature Range (Note 3) .. –40°C to 85°C
Operating Junction Temperature
(Note 5) ................................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
ORDER INFORMATION
LEAD FREE FINISH
LTC4001EUF-1#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
specifi ed.
SYMBOL PARAMETER
V
I
V
I
I
V
V
ΔV
V
2
IN
BAT
TRIKL
TRIKL
ASD
IN
FLOAT
UVL
UVL
IN
t < 1ms, DC < 1% .................................... –0.3V to 7V
Steady State ............................................. –0.3V to 6V
, V
INSENSE
Supply Voltage
V
Current Mode Charge Current
Trickle Charge Current
Trickle Charge Threshold
V
V
Automatic Shutdown Threshold
Voltage
Hysteresis
BAT
IN
IN
Undervoltage Lockout Voltage
Undervoltage Lockout
Regulated Float Voltage
TAPE AND REEL
LTC4001EUF-1#TRPBF
CONDITIONS
(Note 2)
PV
Pins Open, Charger On
Shutdown, EN = V
Measured from BATSENS to GNDSENS
R
R
Shutdown, EN = V
V
V
V
V
Measured from V
V
V
BAT
BAT
BAT
IN
INSENSE
INSENSE
PROG
PROG
IN
Rising, Measured from V
Connected to V
= 2V
Rising
Falling
http://www.linear.com/leadfree/
= 549Ω, V
= 1.10k, V
– V
– V
PART MARKING
40011
http://www.linear.com/tapeandreel/
A
BATSENS
BATSENS
= 25°C. V
BAT
BAT
INSENSE
IN
IN
The
INSENSE
= 3.5V
Rising (Turn-On), V
Falling (Turn-Off), V
= 3.5V
l
IN
to GNDSENS
denotes the specifi cations which apply over the full operating
, PROG and IDET
= 5V, V
INSENSE
PIN CONFIGURATION
EN
to GNDSENS
PACKAGE DESCRIPTION
16-Lead (4mm × 4mm) Plastic QFN
= 0V, R
BATSENSE
BATSENSE
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
PROG
= 4V
GNDSENS
= 4V
SENSE
= 549Ω, R
PGND
16-LEAD (4mm × 4mm) PLASTIC QFN
BAT
●
T
JMAX
1
2
3
4
16 15 14 13
= 125°C, θ
4.059
4.079
5
3.05
2.85
MIN
UF PACKAGE
200
1.8
0.9
2.7
IDET
35
15
TOP VIEW
4
6
17
= 549Ω, unless otherwise
7
JA
= 37°C/W
8
12
11
10
TYP
100
250
9
4.1
4.1
3.1
3.0
50
30
2
1
TEMPERATURE RANGE
–40°C to 85°C
PROG
NTC
FAULT
V
INSENSE
4.141
4.121
MAX
3.20
3.05
2.82
300
5.5
2.2
1.1
50
±5
65
60
2
UNITS
40011fa
mA
mA
mV
mV
mV
μA
μA
V
V
V
A
A
V
V
V