MAX8903BETI+ Maxim Integrated Products, MAX8903BETI+ Datasheet - Page 9

• Manufacturer Part Number: MAX8903BETI+
• Description: IC DC/DC CHARGER LI+ 2A 28-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Smart Power Selector™r

Specifications of MAX8903BETI+

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.1 V ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(T
A
= +25°C, unless otherwise noted.)
V
V
SYS
V
SYS
V
I
I
LX
LX
LX
LX
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
CHARGE PROFILE—1400mAh BATTERY
V
C
R
V
C
CEN = 1
20
DC
SYS
DC
SYS
SYS
USB INPUT—500mA CHARGE
MAX8903A/MAX8903B/MAX8903C
WAVEFORMS—HEAVY LOAD
= 9V, L = 2.2μH
= 9V, L = 2.2μH
WAVEFORMS—LIGHT LOAD
MAX8903G DC SWITCHING
= 22μF,
= 44I
MAX8903G DC SWITCHING
= 22μF, R
40 60 80 100
_______________________________________________________________________________________
I
USB
I
V
BAT
SYS
BAT
SET TO 500mA
TIME (min)
SET TO 2A
= 5I
1μs/div
1μs/div
2A 1-Cell Li+ DC-DC Chargers for USB
120 140
I
BAT
160
MAX8903A toc19a
MAX8903A toc20a
MAX8903A toc18
180
200
0.500
0.450
0.400
0.350
0.300
0.250
0.200
0.150
0.100
0.050
0
50mV/div
AC-COUPLED
10V/div
0V
1A/div
0A
50mV/div
AC-COUPLED
10V/div
0V
1A/div
0A
Typical Operating Characteristics (continued)
V
V
I
OUT
V
I
V
USB
SYS
BAT
I
I
and Adapter Power
DC
OUT
V
LX
LX
I
LX
LX
-335mA
475mA
MAX8903A/B/C/E/Y DC SWITCHING
3.6V
MAX8903A/B/C/E/Y DC SWITCHING
USB CONNECTED (R
WAVEFORMS—HEAVY LOAD
WAVEFORMS—LIGHT LOAD
DC CONNECT WITH
200ns/div
200μs/div
200ns/div
-I
BAT
SYS
= CHARGING
= 25Ω)
R
R
SYS
SYS
347mA
MAX8903A toc20
MAX8903A toc19
MAX8903A toc21
= 44Ω
= 5Ω
20mV/div
AC-COUPLED
5V/div
0V
500mA/div
0A
20mV/div
AC-COUPLED
5V/div
0V
2V/div
500mA/div
500mA/div
0A
500mA/div
500mA/div
0A
9