LTC4007-1_15 Datasheet, PDF (2/24 Pages) Linear Technology – 4A, High Efficiency, Li-Ion Battery Charger

LTC4007-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Voltage from DCIN, CLP, CLN to GND ....... + 32V/– 0.3V
PGND with Respect to GND ................................. ±0.3V
CSP, BAT to GND ....................................... +28V/– 0.3V
CHEM, 3C4C, R_T to GND .............................. +7V/– 0.3V
NTC ............................................................ +10V/– 0.3V
ACP, SHDN, CHG, FLAG,
FAULT, LOBAT, I_CL .............................................. + 32V/– 0.3V
CLP to CLN ........................................................... ±0.5V
Operating Ambient Temperature Range
(Note 4) ............................................. – 40°C to 85°C
Operating Junction Temperature ......... – 40°C to 125°C
Storage Temperature Range ................. – 65°C to 125°C
PACKAGE/ORDER INFORMATION
TOP VIEW
ACP 1
R_T 2
FAULT 3
GND 4
3C4C 5
LOBAT 6
NTC 7
24 23 22 21 20
19 NC
18 PGND
17 TGATE
25
16 CLN
15 CLP
14 FLAG
13 CHEM
8 9 10 11 12
UFD PACKAGE
24-LEAD (4mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 90°C/W
EXPOSED PAD (PIN 25), GND AND PGND SHOULD BE CONNECTED
TOGETHER WITH A LOW OHMIC CONNECTION.
ORDER PART NUMBER UFD PART MARKING
LTC4007EUFD-1
40071
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range (Note 4), otherwise specifications are at T_A = 25°C. V_DCIN = 20V, V_BAT = 12V unless otherwise noted.
SYMBOL
I_Q
V_TOL
PARAMETER
DCIN Operating Range
Operating Current
Charge Voltage Accuracy
I_TOL
Charge Current Accuracy (Note 3)
T_SAMPLE Measured Sample Time
Shutdown
Battery Leakage Current
UVLO
Undervoltage Lockout Threshold
Shutdown Threshold at SHDN
SHDN Pin Current
Operating Current in Shutdown
CONDITIONS
MIN TYP MAX
6
28
Sum of Current from CLP, CLN , DCIN
3
5
Nominal Values: 12.3V, 12.6V, 16.4V, 16.8V
– 0.8
0.8
(Note 2)
● –1.0
1.0
V_CSP – V_BAT Target = 100mV
–4
4
● –5
5
V_BAT < 6V, V_CSP – V_BAT Target = 10mV
±60
6V ≤ V_BAT ≤ V_LOBAT, V_CSP – V_BAT
±35
Target = 10mV
R_RT = 1190k
● 42
60
DCIN = 0V
SHDN = 3V
●
20
35
● –10
10
DCIN Rising, V_BAT = 0
● 4.2
4.7
5.5
●1
1.6
2.5
– 10
V_SHDN = 0V, Sum of Current from CLP,
CLN, DCIN
2
3
2
UNITS
V
mA
%
%
%
%
%
%
ms
µA
µA
V
V
µA
mA
40071f