...sink current pin voltage = 0.4v 8 ma battery reverse current to batt pin en = low and input = floating or 0v 1 a tbd tbd switch-on resistance r on v batt = 3.8v, i batt = 300ma, r chg = 1.7k ? 0.35 ? soft...
Description
Single-Cell 1A Linear Li-Ion Battery Charger without Trickle Charge
...y I1 and I2) ISWITCHING vLX = 0.4v ILEAKAGE FMAX DOSC vLX = 6v vOUT = 2.5v to 5v vOUT = 1.5v to 2.4v On (vLX "L") side
A
vOUT 3.5v
...v v v % A A A
IOUT = 1mA, vIN: 0 2v IOUT = 1mA, vIN: 2 0v
-0.7 --
3.5v < vOUT 5v
To b...
...vIL = 0.8v, IOH =-2.4mA vIL = 0.4v, IOH =-13.2mA vIL = 0.4v, IOH = MAX vIH = 2v IOL = 48 mA vI =5.5v vI = 2.4v vI = 0.4v MIN 2.4 2.4 2 TYP** MAX UNIT -1.5 v 3.4 v 0.26 0.4 1 40 -1.6 -180 21 57 v m A m mA m mA
-70 12 33
*- For conditio...
...S
1. Driving Capability
vin 2.4v 3.6v 5.0v ILED=12.5mA 6 x 1LED 3 x 9LED 3 x 10LED ILED=20mA 4 x 1LED 3 x 6LED 3 x 10LED
2.Efficiency F...v in vO
D f OSC
D is the MOSFET turn on ratio and is decided by:
D
fOSC is the switching...
Description
High Efficiency, Constant Current 2 Watt Boost White-LED Driver