MAX8934GETI+ Maxim Integrated Products, MAX8934GETI+ Datasheet - Page 9

• 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

(T
indicates charging.)
A
Dual-Input Linear Charger, Smart Power Selector
= +25NC, circuit of Figure 2, V
with Advanced Battery Temperature Monitoring
V
V
I
V
V
V
V
V
V
I
USUS
V
I
BATT
BATT
BATT
BATT
I
I
CHG
CHG
SYS
USB
USB
UOK
USB
SYS
SYS
I
DC
-307mA
475mA
160mA
3.3V
3.6V
1.2A
-1A
3.7V
3V
0A
4V
DC DISCONNECT WITH NO USB
USB DISCONNECT WITH NO DC
USB RESUME (R
-I
_______________________________________________________________________________________
BATT
= CHARGING
(R
(R
4.2V
3.6V
0V
4.3V
SYS
SYS
200µs/div
200µs/div
200µs/div
= 22I)
= 22I)
BATTERY CHARGER
SOFT-START
160mA
3.3V
3.3V
SYS
3.6V
DC
= 22I)
0A
160mA
V
= 6V, V
475mA
0mA
3.7V
3.6V
USB
MAX8934G toc21
MAX8934G toc23
MAX8934G toc25
0V
-307mA
= 5V
BATT
5V/div
5V/div
1A/div
1A/div
5V/div
500mA/div
5V/div
5V/div
5V/div
500mA/div
5V/div
500mA/div
5V/div
5V/div
500mA/div
Typical Operating Characteristics (continued)
= 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative battery current
V
V
V
V
I
V
V
USUS
V
I
I
BATT
BATT
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
UOK
CHG
I
USB
USB
SYS
CHG
USB
SYS
0
LDO OUTPUT VOLTAGE vs. LDO OUTPUT
-150mA
475mA
-307mA
V
3.3V
3.3V
3.3V
3.7V
BATT
CURRENT (USB DISCONNECTED)
0V
DC UNCONNECTED
25
USB CONNECT WITH NO DC
USB SUSPEND (R
= 4.0V
LDO OUTPUT CURRENT (mA)
50
5V
(R
160mA
4.3V
3.6V
3.3V
SYS
3.3V
V
200µs/div
200µs/div
75
0A
DC
C
C
= 5.0V
DC
= 22I)
SYS
BATTERY CHARGER
SOFT-START
100
CHARGING
SYS
CHARGING
475mA
= 22I)
125
V
MAX8934G toc22
USB
MAX8934G toc24
3.7V
-307mA
150
-1A
= 5V
175
5V/div
500mA/div
5V/div
5V/div
5V/div
500mA/div
5V/div
500mA/div
5V/div
5V/div
500mA/div
9