MAX8934GETI+ Maxim Integrated Products, MAX8934GETI+ Datasheet - Page 8

• Manufacturer Part Number: MAX8934GETI+
• Description: IC LI BATT CHARGER DUAL 28TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8934GETI+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual-Input Linear Charger, Smart Power Selector
with Advanced Battery Temperature Monitoring
(T
indicates charging.)
8
A
= +25NC, circuit of Figure 2, V
______________________________________________________________________________________
V
I
BATT
500
450
400
350
300
250
200
150
100
I
SYS
USB
I
5.5
5.3
5.1
4.9
4.7
4.5
4.3
4.1
3.9
3.7
3.5
50
DC
0
0
0
CHARGE PROFILE—820mAh BATTERY
DC CONNECT WITH USB CONNECTED
C
-303mA
BATTERY CHARGER SOFT-START
475mA
V
V
CEN = 1
DC
3.8V
BATT
USB
0A
USB INPUT—500mA CHARGE
SYS OUTPUT CURRENT (USB)
20
CHARGING
0.5
SYS OUTPUT VOLTAGE vs.
= 5.0V
= 4.0V,
SYS OUTPUT CURRENT (A)
V
BAT
0.1A, PEN1 = 0, PEN2 = 0
0.5A, PEN1 = 0, PEN2 = 0
40
1.0
0A
(R
TIME (min)
4.35V
SYS
400µs/div
C
60
1.5
SYS
= 22I)
DC
CHARGING
I
BAT
= 6V, V
80
2.0
MAX8934G toc17
1.2A
MAX8934G toc19
100
-1A
2.5
BATT
Typical Operating Characteristics (continued)
120
3.0
= 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative battery current
4.5
4.0
3.5
3.0
2.5
2.0
5V/div
1A/div
500mA/div
1A/div
V
V
I
1.2
1.0
0.8
0.6
0.4
0.2
BATT
BATT
3.5
3.0
2.5
2.0
1.5
1.0
0.5
SYS
I
0
DC
0
0
0
CHARGE PROFILE—820mAh BATTERY
CHARGING
160mA
BATTERY CHARGER SOFT-START
3.6V
ADAPTER INPUT—1A CHARGE
C
0A
3.6V
2
DC
DC CONNECT WITH NO USB
V
20
L
OUTPUT VOLTAGE vs.
4
I
I
BAT
VL
DC VOLTAGE (V)
DC VOLTAGE
(R
= 0mA
0mA
TIME (min)
I
VL
C
SYS
400µs/div
6
SYS
= 5mA
40
= 22I)
CHARGING
8
4.35V
V
BAT
10
60
MAX8934G toc18
MAX8934G toc20
1.2A
12
-1A
80
14
4.5
4.0
3.5
3.0
2.5
2.0
1.5
5V/div
5V/div
1A/div
1A/div