Datasheet

MAX1736
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further slow switching edges and prevent transient
spikes.
C
CT
sets the minimum on-time and off-time according
to the following equations:
t
ON(MIN)
= 5
✕
10
5
x C
CT
t
OFF(MIN)
= 1
✕
10
5
x C
CT
Layout Guidelines
The MAX1736 controls the GATE slew rate; conse-
quently, PC board layout is not as sensitive to noise as
a high-frequency switching regulator. In addition, since
cell voltage is sensed both during and between high-
current pulses, the system is insensitive to ground
errors. However, Maxim recommends maintaining large
ground area and large traces for high-current paths.
Refer to the MAX1736EVKIT for a recommended layout
example.
Chip Information
TRANSISTOR COUNT: 1622
0.33µF
0.1µF
100k
0.22µF
CT
BATT
GATE
2.2µF
SINGLE
Li+ CELL
GND
IN
CURRENT-LIMITED
WALL CUBE
(800mA)
FDC638P
PFET
MAX1736
Figure 3. Simple Application Circuit
Package Information
6LSOT.EPS
SOT23, Single-Cell Li+ Battery Charger
for Current-Limited Supply