LTC4054X-4.2_15 Datasheet, PDF (2/16 Pages) Linear Technology – Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT

LTC4054-4.2/LTC4054X-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
BAT .............................................................. –0.3V to 7V
CHRG ........................................................ –0.3V to 10V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ................................................. 800mA
PROG Pin Current ................................................ 800µA
Maximum Junction Temperature .......................... 125°C
Operating Ambient 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)
(N0TE 3)
ORDER PART
NUMBER
LTC4054ES5-4.2
LTC4054XES5-4.2
S5 PART MARKING
LTH7
LTADY
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
V_CC
I_CC
V_FLOAT
I_BAT
I_TRIKL
V_TRIKL
V_TRHYS
V_UV
V_UVHYS
V_MSD
V_ASD
I_TERM
V_PROG
I_CHRG
V_CHRG
∆V_RECHRG
PARAMETER
Input Supply Voltage
Input Supply Current
Regulated Output (Float) Voltage
BAT Pin Current
Trickle Charge Current
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
V_CC Undervoltage Lockout Threshold
V_CC Undervoltage Lockout Hysteresis
Manual Shutdown Threshold Voltage
V_CC – V_BAT Lockout Threshold Voltage
C/10 Termination Current Threshold
PROG Pin Voltage
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
Recharge Battery Threshold Voltage
CONDITIONS
Charge Mode (Note 4), R_PROG = 10k
Standby Mode (Charge Terminated)
Shutdown Mode (R_PROG Not Connected,
V_CC < V_BAT, or V_CC < V_UV)
0°C ≤ T_A ≤ 85°C, I_BAT = 40mA
R_PROG = 10k, Current Mode
R_PROG = 2k, Current Mode
Standby Mode, V_BAT = 4.2V
Shutdown Mode (R_PROG Not Connected)
Sleep Mode, V_CC = 0V
V_BAT < V_TRIKL, R_PROG = 2k (Note 5)
R_PROG = 10k, V_BAT Rising (Note 5)
R_PROG = 10k (Note 5)
From V_CC Low to High
PROG Pin Rising
PROG Pin Falling
V_CC from Low to High
V_CC from High to Low
R_PROG = 10k (Note 6)
R_PROG = 2k
R_PROG = 10k, Current Mode
V_CHRG = 5V
I_CHRG = 5mA
V_FLOAT - V_RECHRG
MIN TYP MAX
q 4.25
6.5
q
300 2000
q
200 500
q
25
50
4.158 4.2 4.242
q
93
100 107
q
465
500
535
q
0
–2.5
–6
±1
±2
±1
±2
q
20
45
70
2.8
2.9
3.0
60
80
110
q
3.7
3.8
3.92
q
150
200
300
q 1.15 1.21 1.30
q
0.9
1.0
1.1
70
100 140
5
30
50
q 0.085 0.10 0.115
q 0.085 0.10 0.115
q
0.93
1.0
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
405442xf
2