MAX8903DETI+ Maxim Integrated Products, MAX8903DETI+ Datasheet - Page 6

• Manufacturer Part Number: MAX8903DETI+
• Description: IC DC/DC CHARGER LI+ 2A 28-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Smart Power Selector™r

Specifications of MAX8903DETI+

• 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
ELECTRICAL CHARACTERISTICS (continued)
(V
(Note 1)
Note 1: Limits are 100% production tested at T
Note 2: For the 100mA USB mode using the DC input, the step-down regulator is turned off and its high-side switch operates as a
Note 3: For the 500mA USB mode, the actual current drawn from USB is less than the output current due to the input/output current
Note 4: For short-circuit protection, SYS sources 25mA below V
Note 5: Limits over the operating temperature range are generated by design only.
(T
6
VL Output Voltage
VL UVLO Threshold
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
DC
A
100
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
0
= V
1.0
linear regulator with a 100mA current limit. The linear regulator’s output is connected to LX and its output current flows
through the inductor into CS and finally to SYS.
ratio of the DC-DC converter.
USB
V
BATTERY CHARGER EFFICIENCY
DC
PARAMETER
1.5
= 8V
I
BAT
= 5V, V
vs. BATTERY VOLTAGE
V
2.0
DC
= 0.15A
BATTERY VOLTAGE (V)
= 5V
2.5
BAT
V
DC
3.0
= 12V
= 4V, circuit of Figure 2, T
3.5
I
BAT
4.0
= 1.5A
4.5
V
V
DC
VL
5.0
falling; 200mV hysteresis
= V
USB
A
= +25°C. Limits over the operating temperature range are guaranteed by design.
100
= 6V
90
80
70
60
50
40
30
20
10
0
A
1.0
= -40°C to +85°C, unless otherwise noted. Typical values are at T
EFFICIENCY vs. BATTERY VOLTAGE
V
I
DC
BATT
MAX8903G BATTERY CHARGER
1.5
V
= 9V
DC
CONDITIONS
= 0.15A
= 6V
2.0
BATTERY VOLTAGE (V)
SYS
2.5
V
= 400mV, and 50mA for V
I
(MAX8903A/MAX8903C/
MAX8903D/MAX8903Y)
I
(MAX8903B/MAX8903E/
MAX8903G)
DC
3.0
VL
VL
= 12V
Typical Operating Characteristics
= 0 to 1mA
= 0 to 10mA
I
BATT
3.5
= 1.5A
4.0
4.5
5.0
SYS
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
MIN
between 400mV and 2V.
4.6
4.6
4
6
SWITCHING FREQUENCY
TYP
160
3.2
15
5
5
V
V
8
BAT
BAT
DC VOLTAGE (V)
vs. V
= 4V
= 3V
10
MAX
DC
5.4
5.4
12
R
V
A
ISET
CEN
= +25°C.)
= 1.2kΩ
= 0V
UNITS
14
°C
°C
V
V
16