Datasheet

MAX1736
SOT23, Single-Cell Li+ Battery Charger
for Current-Limited Supply
4 _______________________________________________________________________________________
0.1 1 10
MINIMUM ON/OFF-TIMES vs. C
CT
MAX1736 toc01
C
CT
(µF)
MINIMUM ON/OFF-TIME (ms)
10
100
1000
10,000
MINIMUM
OFF-TIME
MINIMUM
ON-TIME
-0.20
-0.15
-0.10
-0.05
0.00
0.05
0.10
0.15
0.20
-40 -15 10 35 60 85
BATT REGULATION VOLTAGE
DEVIATION vs. TEMPERATURE
MAX1736-02
TEMPERATURE (°C)
BATT VOLTAGE DEVIATION (%)
5.1
5.3
5.2
5.5
5.4
5.7
5.6
5.8
PRECHARGE CURRENT vs.
INPUT VOLTAGE
MAX1736-03
V
IN
(V)
PRECHARGE CURRENT (mA)
4 9 14 19 24
V
BATT
= 2V
V
BATT
= 1V
V
BATT
= 0
PRECHARGE CURRENT (mA)
0.1 1 10
INPUT DETECTION INTERVAL vs. C
CT
MAX1736 toc04
C
CT
(µF)
INPUT DETECTION INTERVAL (s)
1000
1
10
100
OA
OV
V
BATT
200mV/div
I
IN
1A/div
I
IN
5V/div
V
GATE
10V/div
TYPICAL OPERATING WAVEFORMS
MAX1736 toc05
10ms/div
AC-COUPLED
PFET OFF
PFET ON
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)