LTC4056-4.2_15 Datasheet, PDF (2/16 Pages) Linear Technology – Linear Li-Ion Charger with Termination in ThinSOT

LTC4056-4.2
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (V_CC) ........................– 0.3V to 10V
BAT, CHRG ................................................– 0.3V to 10V
DRIVE, PROG, TIMER/SHDN ....... – 0.3V to (V_CC + 0.3V)
Output Current (I_SENSE) ...................................... 900mA
Short-Circuit Duration (BAT, I_SENSE) ............ Continuous
Junction Temperature ........................................... 125°C
Operating Ambient Temperature Range
(Note 2) .............................................. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
V_CC 1
I_SENSE 2
DRIVE 3
GND 4
8 CHRG
7
TIMER/
SHDN
6 BAT
5 PROG
TS8 PACKAGE
8-LEAD PLASTIC SOT-23
T_JMAX = 125°C, θ_JA = 120°C/W TO 200°C/W
DEPENDING ON PC BOARD LAYOUT
ORDER PART
NUMBER
LTC4056ETS8-4.2
TS8 PART
MARKING
LTG5
Consult LTC Marketing 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 = 5V.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_CC Supply
V_CC
I_CC
Input Supply Voltage (Note 3)
Quiescent V_CC Supply Current
I_SHDN
I_BMS
V_CC Supply Current in Manual Shutdown
Battery Drain Current in
Manual Shutdown (Note 4)
V_BAT = 4.5V (Forces I_DRIVE = 0)
I_PROG = 200µA (R_PROG = 5k)
V_TIMER/SHDN = 0V
V_TIMER/SHDN = 0V
q 4.5
6.5
V
q
400 600
µA
40
60
µA
q –1
0
1
µA
I_BSL
Battery Drain Current in
Sleep Mode (Note 5)
V_CC = 0V
q –1
0
1
µA
V_UVLOI
Undervoltage Rising Threshold
V_CC Increasing
V_UVLOD
Undervoltage Falling Threshold
V_CC Decreasing
V_UVHYS
Undervoltage Hysteresis
V_UVLOI-V_UVLOD
V_UVCL
Undervoltage Charge Current Limit Threshold
V_UVCL-V_UVLOI UV Charge Current to UVLO Threshold Margin
Charging Performance
q 4.325 4.40 4.475
V
q 4.275 4.35 4.425
V
50
mV
4.575
V
q 90
170 250
mV
V_FLOAT
I_BAT
Output Float Voltage in
Constant Voltage Mode
Output Full-Scale Current in
Constant Current Mode
I_DSINK
I_TRIKL
V_TRIKL
∆V_TRIKL
V_PROG1
V_PROG2
Drive Output Current
Trickle Charge Current
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
PROG Pin Voltage
PROG Pin Voltage
I_BAT = 10mA
I_BAT = 10mA, 4.75V ≤ V_CC ≤ 6.5V
R_PROG = 5k, 4.75V ≤ V_CC ≤ 6.5V,
PNP Beta > 50, 0°C ≤ T_A ≤ 85°C
R_PROG = 1.43k, 4.75V ≤ V_CC ≤ 6.5V,
PNP Beta > 50, 0°C ≤ T_A ≤ 85°C
V_DRIVE = 3V
V_BAT = 2V, R_PROG = 5k
V_BAT = 2V, R_PROG = 1.43k
V_BAT Falling
R_PROG = 5k (I_PROG = 200µA)
R_PROG = 1.43k (I_PROG = 700µA)
4.175 4.200 4.225
V
q 4.158 4.200 4.242
V
137 183 228
mA
590 640 690
mA
q 30
mA
5
7
10
mA
12
20
28
mA
q 2.73 2.80 2.87
V
45
70
95
mV
q 0.98
1
1.02
V
q 0.98
1
1.02
V
405642f
2