MAX8903CETI+ Maxim Integrated Products, MAX8903CETI+ Datasheet - Page 10

• Manufacturer Part Number: MAX8903CETI+
• Description: IC DC/DC CHARGER LI+ 2A 28-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Smart Power Selector™r

Specifications of MAX8903CETI+

• 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

2A 1-Cell Li+ DC-DC Chargers for USB
and Adapter Power
(T
10
A
= +25°C, unless otherwise noted.)
______________________________________________________________________________________
V
V
V
V
I
I
I
OUT
OUT
SYS
SYS
SYS
BAT
BAT
I
DC
144mA
MAX8903A
V
L = 2.2μH
C
R
DCM = HIGH
CEN = 1
0A
DC
SYS
IDC
MAX8903G SYS LOAD TRANSIENT
MAX8903A SYS LOAD TRANSIENT
0A
4.400V
= 10.5V
= 3kI (2A)
DC CONNECT WITH NO USB
= 10μF
3.6V
3.6V
BATTERY
CHARGER
SOFT-START
C
CHARGING
DC
(R
3.44V
SYS
1A
400μs/div
100μs/div
100μs/div
= 25Ω)
C
CHARGING 850mA
4.360V
SYS
-I
1A
BAT
= CHARGING
3.84V
MAX8903G
V
L = 2.2μH
C
DCM = 1
DC
SYS
0A
MAX8903A toc24a
MAX8903A toc24c
MAX8903A toc22
-1A
= 9V
= 22μF
Typical Operating Characteristics (continued)
2V/div
5V/div
1A/div
1A/div
50mV/div
AC-COUPLED
500mA/div
0A
20mV/div
AC-COUPLED
500mA/div
0A
V
V
V
V
I
V
I
OUT
OUT
I
I
SYS
BAT
BAT
USB
USB
I
SYS
BAT
DC
144mA
MAX8903B SYS LOAD TRANSIENT
4.325V
0A
DC DISCONNECT WITH NO USB
850mA
3.68V
3.6V
USB CONNECT WITH NO DC
3.6V
-1A
C
CHARGING
BATTERY
CHARGER
SOFT-START
USB
3.5V
(R
(R
MAX8903B
V
L = 2.2μH
C
R
DCM = HIGH
CEN = 1
DC
SYS
IDC
SYS
SYS
400μs/div
40μs/div
100μs/div
= 10.5V
= 3kI (2A)
= 22μF
= 25Ω)
= 25Ω)
-I
4.305V
BAT
1A
= CHARGING
3.6V
475mA
0A
3.75V
5V
144mA
MAX8903A toc24b
MAX8903A toc23
MAX8903A toc25
-330mA
2V/div
1A/div
1A/div
5V/div
2V/div
5V/div
500mA/div
500mA/div
20mV/div
AC-COUPLED
500mA/div
0A