LTC4012-2_15 Datasheet, PDF (5/28 Pages) Linear Technology – High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control

Electrical Characteristics
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4012C is guaranteed to meet performance specifications
over the 0°C to 85°C operating temperature range. The LTC4012I is
guaranteed to meet performance specifications over the –40°C to 125°C
operating temperature range.
LTC4012/
LTC4012-1/LTC4012-2
Note 3: Operating junction temperature T_J (in °C) is calculated from
the ambient temperature T_A and the total continuous package power
dissipation P_D (in watts) by the formula T_J = T_A + (θ_JA • PD). Refer to the
Applications Information section for details.
Note 4: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to GND, unless otherwise
specified.
Note 5: Output current may be limited by internal power dissipation. Refer
to the Applications Information section for details.
Test Circuits
LTC4012
FROM ICL
(CLP = CLN)
1.2085V
–
–
–
EA
+
PROG V_FB
13
9
1.2085V
TARGET
LTC1055
ITH
12
0.6V
40012 TC01
LTC4012-1
LTC4012-2
FROM ICL
(CLP = CLN)
1.2085V
–
–
–
EA
+
PROG BAT
13
11
TARGET VARIES
WITH FVSO,1
LTC1055
ITH
12
0.6V
40012 TC02
4012fa