LTC4054L-4.2 Datasheet, PDF (2/16 Pages) Linear Technology – 150mA Standalone Linear Li-Ion Battery Charger in ThinSOT

LTC4054L-4.2
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (V_CC) ....................... –0.3V to 10V
PROG ............................................. – 0.3V to V_CC + 0.3V
CHRG ........................................................ –0.3V to 10V
BAT ............................................................. – 0.3V to 7V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ................................................. 200mA
PROG Pin Current ................................................ 1.5mA
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
CHRG 1
GND 2
BAT 3
5 PROG
4 V_CC
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T_JMAX = 125°C, θ_JA = 80°C/ W TO 150°C/W
DEPENDING ON PC BOARD LAYOUT (NOTE 3)
ORDER PART
NUMBER
LTC4054LES5-4.2
S5 PART MARKING
LTAFA
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_CC = 5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
V_CC
I_CC
V_FLOAT
I_BAT
I_TRIKL
V_TRIKL
V_TRHYS
V_UV
V_UVHYS
V_MSD
Supply Voltage
q 4.25
6.5
Supply Current
Charge Mode (Note 4), R_PROG = 1k
q
Standby Mode (Charge Terminated)
q
Shutdown Mode (R_PROG Not Connected, q
V_CC < V_BAT, or V_CC < V_UV)
1200 2000
200 500
25
50
Regulated Output (Float) Voltage
0°C ≤ T_A ≤ 85°C, I_BAT = 40mA
4.158 4.2 4.242
BAT Pin Current
R_PROG = 15k, Current Mode
q
9.3
10
10.7
R_PROG = 1k, Current Mode
q 142.5 150 157.5
Standby Mode, V_BAT = 4.2V
q
0
–2.5
–6
Shutdown Mode (R_PROG Not Connected)
±1
±2
Sleep Mode, V_CC = 0V
±1
±2
Trickle Charge Current
V_BAT < V_TRIKL, R_PROG = 1k (I_BAT = 150mA) q
5
15
25
Trickle Charge Threshold Voltage
R_PROG = 15k, V_BAT Rising
2.8
2.9
3
Trickle Charge Hysteresis Voltage
R_PROG = 15k
60
80
110
V_CC Undervoltage Lockout Threshold Voltage From V_CC Low to High
q
3.7
3.8
3.92
V_CC Undervoltage Lockout Hysteresis Voltage
q
150
200
300
Manual Shutdown Threshold Voltage
PROG Pin Rising
PROG Pin Falling
q 1.15 1.21 1.30
q
0.9
1.0
1.1
V_ASD
V_CC – V_BAT Lockout Threshold Voltage
I_TERM
C/10 Termination Current Threshold
V_PROG
I_CHRG
V_CHRG
∆V_RECHRG
PROG Pin Voltage
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
Recharge Battery Hysteresis Voltage
V_CC from Low to High
V_CC from High to Low
R_PROG = 15k (I_BAT = 10mA) (Note 5)
R_PROG = 1k (I_BAT = 150mA) (Note 5)
R_PROG = 1k, Current Mode
V_CHRG = 5V
I_CHRG = 5mA
V_FLOAT – V_RECHRG
70
100 140
5
30
50
q 0.085 0.10 0.115
q 0.088 0.10 0.112
q 0.93
1
1.07
8
20
35
0.35
0.6
100 150 200
UNITS
V
µA
µA
µA
V
mA
mA
µA
µA
µA
mA
V
mV
V
mV
V
V
mV
mV
mA/mA
mA/mA
V
µA
V
mV
4054l42f
2