LTC1732-4 Datasheet, PDF (2/12 Pages) Linear Technology – Lithium-Ion Linear Battery Charger Controller

LTC1732-4/LTC1732-4.2
ABSOLUTE MAXIMUM RATINGS
(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
PACKAGE/ORDER INFORMATION
BAT 1
SEL 2
CHRG 3
TIMER 4
GND 5
TOP VIEW
10 ACPR
9 SENSE
8 V_CC
7 DRV
6 PROG
MS10 PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 140°C, θ_JA = 180°C/W
ORDER PART
NUMBER
LTC1732EMS-4
LTC1732EMS-4.2
MS10 PART MARKING
LTNJ
LTUA
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q 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.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_CC
Input Supply Voltage
I_CC
Input Supply Current
Charger On, Current Mode
Shutdown Mode
Sleep Mode (Battery Drain Current)
q 4.5
12
V
q
1
3
mA
q
1
3
mA
7
20
µA
V_BAT
Regulated Output Voltage
LTC1732-4; 5V ≤ V_CC ≤ 12V, V_SEL = GND
q 4.059 4.1 4.141
V
LTC1732-4/LTC1732-4.2; 5V ≤ V_CC ≤ 12V, V_SEL = V_CC q 4.158 4.2 4.242
V
I_BAT
Current Mode Charge Current
R_PROG = 19.6k, R_SENSE = 0.2Ω
R_PROG = 19.6k, R_SENSE = 0.2Ω
465 500 535
mA
q 415
585
mA
R_PROG = 97.6k, R_SENSE = 0.2Ω
60 100 140
mA
I_TRIKL Trickle Charge Current
V_BAT = 2V, R_PROG = 19.6k, I_TRIKL = (V_CC – V_SENSE)/0.2Ω q 30
50 110
mA
V_TRIKL Trickle Charge Threshold Voltage
From Low to High
q 2.35 2.457 2.55
V
V_UV
V_CC Undervoltage Lockout Voltage
From Low to High
q
4.1 4.5
V
∆V_UV
V_CC Undervoltage Lockout Hysteresis
200
mV
V_MSD
Manual Shutdown Threshold Voltage
PROG Pin Low to High
PROG Pin High to Low
2.457
V
2.446
V
V_ASD
V_DIS
I_PROG
V_PROG
V_ACPR
I_CHRG
V_CHRG
V_SEL
Automatic Shutdown Threshold Voltage
Voltage Mode Disable Threshold Voltage
PROG Pin Current
PROG Pin Voltage
ACPR Pin Output Low Voltage
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
SEL Pin Threshold
(V_CC – V_BAT) High to Low
(V_CC – V_BAT) Low to High
V_DIS = V_CC – V_TIMER
Internal Pull-Up Current, No R_PROG
PROG Pin Source Current, ∆V_PROG ≤ 5mV
R_PROG =19.6k
I_ACPR = 5mA
V_CHRG = 1V
I_CHRG = 5mA
30 54 90
mV
40 69 100
mV
0.4
V
2.5
µA
q 300
µA
2.457
V
0.7 1.2
V
15 35 55
µA
0.6 1.2
V
q 0.3
2
V
2