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LTC4002ES8-8.4 Datasheet(PDF) 2 Page - Linear Technology

Part # LTC4002ES8-8.4
Description  Standalone Li-Ion Switch Mode Battery Charger
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4002ES8-8.4 Datasheet(HTML) 2 Page - Linear Technology

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LTC4002
2
4002f
Supply Voltage (VCC) .............................................. 24V
GATE .................................................. (VCC – 8V) to VCC
BAT, SENSE .............................................. – 0.3V to 14V
CHRG, NTC ................................................. – 0.3V to 8V
ORDER PART
NUMBER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC4002EDD-4.2
LTC4002EDD-8.4
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
TJMAX = 125°C, θJA = 110°C/W
1
2
3
4
8
7
6
5
TOP VIEW
NTC
SENSE
BAT
CHRG
COMP
VCC
GATE
GND
S8 PACKAGE
8-LEAD PLASTIC SO
DD PART MARKING
LAGG
LBGY
Operating Temperature Range (Note 4) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (S8 Package)
(Soldering, 10 sec) ........................................... 300°C
TOP VIEW
11
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
NC
NTC
SENSE
BAT
CHRG
COMP
VCC
GATE
PGND
SGND
ORDER PART
NUMBER
LTC4002ES8-4.2
LTC4002ES8-8.4
S8 PART MARKING
400242
400284
ELECTRICAL CHARACTERISTICS (LTC4002-4.2) The denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VCC = 10V unless otherwise noted.
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD IS GND (PIN 11)
MUST BE SOLDERED TO PCB
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
VCC
VCC Supply Voltage
4.7
22
V
ICC
VCC Supply Current
Current Mode
3
5
mA
Shutdown Mode
3
5
mA
Sleep Mode
10
20
µA
VBAT(FLT)
Battery Regulated Float Voltage
5V ≤ VCC ≤ 22V (Note 2)
4.168
4.2
4.232
V
4.158
4.242
V
VSNS(CHG) Constant Current Sense Voltage
3V ≤ VBAT ≤ 4V (Note 3)
0°C ≤ TA ≤ 85°C
93
100
107
mV
–40°C ≤ TA ≤ 85°C
90
110
mV
VSNS(TRKL) Trickle Current Sense Voltage
VBAT = 0V (Note 3)
5
10
15
mV
VTRKL
Trickle Charge Threshold Voltage
VBAT Rising
2.75
2.9
3.05
V
VUV
VCC Undervoltage Lockout Threshold Voltage
VCC Rising
3.9
4.2
4.5
V
∆VUV
VCC Undervoltage Lockout Hysteresis Voltage
200
mV
VMSD
Manual Shutdown Threshold Voltage
COMP Pin Falling
200
360
500
mV
VASD
Automatic Shutdown Threshold Voltage
VCC – VBAT
250
mV
ICOMP
COMP Pin Output Current
VCOMP = 1.2V
100
µA
ICHRG
CHRG Pin Weak Pull-Down Current
VCHRG = 1V
15
25
35
µA
VCHRG
CHRG Pin Output Low Voltage
ICHRG = 1mA
0.15
0.3
V
REOC
End-of-Charge Ratio
VSNS(EOC)/VSNS(CHG)
10
25
32
%
tTIMER
Charge Time Accuracy
10
%


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