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LTC1730-4 Fiches technique(PDF) 2 Page - Linear Technology

No de pièce LTC1730-4
Description  Lithium-Ion Battery Pulse Charger with Overcurrent Protection
PDF  12 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LTC1730-4 Fiches technique(HTML) 2 Page - Linear Technology

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LTC1730-4/LTC1730-4.2
2
1730f
Supply Voltage (VCC) ............................................ 13.2V
SENSE, GATE, BAT,
TIMER, NTC/SHDN, SEL ............................ – 0.3V to VCC
CHRG, ACPR, FAULT ..............................– 0.3V to 13.2V
ORDER PART
NUMBER
S8 PART MARKING
TJMAX = 125°C, θJA = 110°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
173042
LTC1730ES8-4.2
ABSOLUTE
AXI U
RATI GS (Note 1)
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 6V unless otherwise noted.
1
2
3
4
8
7
6
5
TOP VIEW
BAT
GATE
CHRG
TIMER
SENSE
ACPRB
VIN
GND
S8 PACKAGE
8-LEAD PLASTIC SO
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCC
Supply Voltage
q
4.5
12
V
ICC
Supply Current
Charger On; Fast Charge Mode
q
25
mA
Shutdown: VNTC/SHDN = 0V
q
25
mA
Sleep Mode; VBAT = 4V
q
1
µA
VBAT
Regulated Output Voltage
LTC1730ES8-4.2 (5V
≤ VCC ≤ 12V)
q
4.158
4.2
4.242
V
LTC1730EGN-4 (5V
≤ VCC ≤ 12V), SEL = GND
q
4.059
4.1
4.141
V
LTC1730EGN-4 (5V
≤ VCC ≤ 12V), SEL = VCC
q
4.158
4.2
4.242
V
IMAX
Maximum Charge Overcurrent
RSENSE = 0.1Ω
q
0.7
1
1.3
A
ITRICKL
Trickle Charge Current
VBAT = 2V
15
35
60
mA
VTRICKL
Trickle Charge Trip Threshold
2.45
2.55
V
VASD
Automatic Shutdown Threshold Voltage
(VCC – VBAT) Low to High
150
mV
(Sleep Mode)
(VCC – VBAT) High to Low
0
mV
RDS(ON)
Internal Switch On-Resistance
VBAT = 4V
0.35
Ω
VSHDN
Shutdown Threshold Voltage
NTC/SHDN Pin High to Low
50
mV
DC ELECTRICAL CHARACTERISTICS
ORDER PART
NUMBER
LTC1730EGN-4
1
2
3
4
5
6
7
8
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
16
15
14
13
12
11
10
9
GND*
SENSE
VCC
ACPR
FAULT
CHRG
NC**
GND*
GND*
BAT
NC**
GATE
SEL
NTC/SHDN
TIMER
GND*
* FOUR CORNER PINS ARE FUSED TO
INTERNAL DIE ATTACH PADDLE FOR
HEAT SINKING. CONNECT THESE FOUR
PINS TO EXPANDED PC LANDS FOR
PROPER HEAT SINKING.
** NO INTERNAL CONNECTION
TJMAX = 125°C, θJA = 90°C/W
Operating Junction
Temperature Range (Note 2) .................. – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
GN PART MARKING
17304



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