Datasheet

LTC1730-4/LTC1730-4.2
2
sn1730 1730fs
Supply Voltage (V
CC
) ............................................ 13.2V
SENSE, GATE, BAT,
TIMER, NTC/SHDN, SEL ............................ –0.3V to V
CC
CHRG, ACPR, FAULT ..............................–0.3V to 13.2V
ORDER PART
NUMBER
S8 PART MARKING
T
JMAX
= 125°C, θ
JA
= 110°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
173042
LTC1730ES8-4.2
ABSOLUTE AXI U RATI GS
W
WW
U
(Note 1)
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 6V unless otherwise noted.
1
2
3
4
8
7
6
5
TOP VIEW
BAT
GATE
NTC/SHDN
TIMER
SENSE
V
CC
CHRG
GND
S8 PACKAGE
8-LEAD PLASTIC SO
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage ● 4.5 12 V
I
CC
Supply Current Charger On; Fast Charge Mode ● 25 mA
Shutdown: V
NTC/SHDN
= 0V ● 25 mA
Sleep Mode; V
BAT
= 4V ● 1 µA
V
BAT
Regulated Output Voltage LTC1730ES8-4.2 (5V ≤ V
CC
≤ 12V) ● 4.158 4.2 4.242 V
LTC1730EGN-4 (5V ≤ V
CC
≤ 12V), SEL = GND ● 4.059 4.1 4.141 V
LTC1730EGN-4 (5V ≤ V
CC
≤ 12V), SEL = V
CC
● 4.158 4.2 4.242 V
I
MAX
Maximum Charge Overcurrent R
SENSE
= 0.1Ω ● 0.7 1 1.3 A
I
TRICKL
Trickle Charge Current V
BAT
= 2V 15 35 60 mA
V
TRICKL
Trickle Charge Trip Threshold 2.45 2.55 V
V
ASD
Automatic Shutdown Threshold Voltage (V
CC
– V
BAT
) Low to High 150 mV
(Sleep Mode) (V
CC
– V
BAT
) High to Low 0 mV
R
DS(ON)
Internal Switch On-Resistance V
BAT
= 4V 0.35 Ω
V
SHDN
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
V
CC
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
T
JMAX
= 125°C, θ
JA
= 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