Datasheet

2
LTC1732-8.4
17328f
ORDER PART
NUMBER
(Note 1)
Input Supply Voltage (V
CC
) ................................... 13.2V
SENSE, DRV, BAT, SEL,
TIMER, PROG, CHRG, ACPR ................. –0.3V to 13.2V
Operating Temperature Range (Note 2) .... –40° to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
LTC1732EMS-8.4
T
JMAX
= 140°C, θ
JA
= 180°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
MS10 PART MARKING
LTWW
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 9V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
1
2
3
4
5
BAT
SEL
CHRG
TIMER
GND
10
9
8
7
6
ACPR
SENSE
V
CC
DRV
PROG
TOP VIEW
MS10 PACKAGE
10-LEAD PLASTIC MSOP
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Input Supply Voltage ● 8.8 12 V
I
CC
Input Supply Current Charger On, Current Mode ● 13 mA
Shutdown Mode
● 13 mA
Sleep Mode (Battery Drain Current) 10 30 µA
V
BAT
Regulated Output Float Voltage 9V ≤ V
CC
≤ 12V, V
SEL
= V
CC
● 8.316 8.4 8.484 V
I
BAT
Current Mode Charge Current R
PROG
= 19.6k, R
SENSE
= 0.2Ω 465 500 535 mA
R
PROG
= 19.6k, R
SENSE
= 0.2Ω ● 415 585 mA
R
PROG
= 97.6k, R
SENSE
= 0.2Ω 60 100 140 mA
I
TRIKL
Trickle Charge Current V
BAT
= 4V, R
PROG
= 19.6k, I
TRIKL
= (V
CC
– V
SENSE
)/0.2Ω ● 30 50 125 mA
V
TRIKL
Trickle Charge Threshold Voltage From Low to High ● 4.7 4.9 5.1 V
V
UV
V
CC
Undervoltage Lockout Voltage From Low to High ● 8.2 8.7 V
∆V
UV
V
CC
Undervoltage Lockout Hysteresis 400 mV
V
MSD
Manual Shutdown Threshold Voltage PROG Pin Low to High 2.457 V
PROG Pin High to Low 2.446 V
V
ASD
Automatic Shutdown Threshold Voltage (V
CC
– V
BAT
) High to Low 30 54 90 mV
(V
CC
– V
BAT
) Low to High 40 69 100 mV
V
DIS
Voltage Mode Disable Threshold Voltage V
DIS
= V
CC
– V
TIMER
0.4 V
I
PROG
PROG Pin Current Internal Pull-Up Current, No R
PROG
2.5 µA
PROG Pin Source Current, ∆V
PROG
≤ 5mV ● 300 µA
V
PROG
PROG Pin Voltage R
PROG
=19.6k 2.457 V
V
ACPR
ACPR Pin Output Low Voltage I
ACPR
= 5mA 0.6 1.2 V
I
CHRG
CHRG Pin Weak Pull-Down Current V
CHRG
= 1V 15 35 55 µA
V
CHRG
CHRG Pin Output Low Voltage I
CHRG
= 5mA 0.6 1.2 V
I
DRV
Drive Pin Current V
DRV
= V
CC
– 2V 26 µA