MAX8903JETI+ Maxim Integrated, MAX8903JETI+ Datasheet - Page 6

• Manufacturer Part Number: MAX8903JETI+
• Description: Battery Management 2A 1-Cell Li+ DC-DC USB/Adapter Charger
• Manufacturer: Maxim Integrated
• Series: MAX8903A, MAX8903B, MAX8903C, MAX8903D, MAX8903E, MAX8903G, MAX8903H, MAX8903J, MAX8903Yr

Specifications of MAX8903JETI+

• Rohs: yes
• Battery Type: Li-Ion
• Output Voltage: 5 V
• Output Current: 1 mA
• Operating Supply Voltage: 4.1 V to 16 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: Yes
• Maximum Power Dissipation: 1666.7 mW
• Operating Supply Current: 2.3 mA
• Product Type: Charge Management
• Temperature Monitoring: Yes
• Uvlo Start Threshold: 3.2 V

ELECTRICAL CHARACTERISTICS (continued)
(V
(Note 1)
2A 1-Cell Li+ DC-DC Chargers
for USB and Adapter Power
MAX8903A–E/G/H/J/N/Y
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
(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
1.5
PARAMETER
MAX8903A/B/C/D/E/H/J/N/Y
= 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
BATT
DC
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/C/D/H/J/N/Y)
I
(MAX8903B/E/G)
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
SWITCHING FREQUENCY vs. V
MAX8903A/B/C/D/E/H/J/N/Y
6
TYP
160
5.0
5.0
3.2
15
V
V
8
BAT
DC VOLTAGE (V)
BAT
= 4V
= 3V
10
MAX
5.4
5.4
Maxim Integrated
12
R
V
A
ISET
CEN
= +25°C.)
= 0V
= 1.2kΩ
UNITS
14
DC
°C
°C
V
V
16