MAX8934AETI+ Maxim Integrated Products, MAX8934AETI+ Datasheet - Page 12

• Manufacturer Part Number: MAX8934AETI+
• Description: IC BATTERY CHARGER DUAL 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: Smart Power Selector™r

Specifications of MAX8934AETI+

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.1 V ~ 6.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Product: Charge Management
• Output Voltage: 1 V
• Operating Supply Voltage: 4.1 V to 6.6 V
• Supply Current: 1 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: Yes
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
(MAX8934A, T
tery current indicates charging.)
12
_____________________________________________________________________________________
3.35
3.30
3.25
3.20
3.15
3.10
3.05
3.00
2.95
900
800
700
600
500
400
300
200
100
3.5
3.0
2.5
2.0
1.5
1.0
0.5
A
0
0
= +25NC, circuit of Figure 2, V
0.01
0
0
LDO OUTPUT VOLTAGE vs. LDO OUTPUT
V
BATT
CURRENT (USB DISCONNECTED)
DC UNCONNECTED
0.5
25
0.1
LDO OUTPUT VOLTAGE vs.
= 4.0V
LDO OUTPUT CURRENT (mA)
1.0
V
V
LDO NOISE DENSITY
BATTERY VOLTAGE
50
BATT
BATTERY VOLTAGE (V)
BATT
vs. FREQUENCY
FREQUENCY (kHz)
1
1.5
FALLING
V
RISING
DC
75
2.0
= 5.0V
10
100
2.5
V
I
RESISTIVE LOAD
100
LDO
BATT
125
3.0
= 10mA
= 3.8V,
1000
150
3.5
DC
10,000
Typical Operating Characteristics (continued)
175
4.0
= 6V, V
BATT
= 3.6V, thermistor Beta = 3964, unless otherwise noted. Negative bat-
V
V
V
I
V
I
BATT
BATT
BATT
BATT
LDO
THM
-10
-15
-20
-25
-30
-35
-40
-45
-50
-5
0
0.1
I
LDO
REJECTION RATIO vs. FREQUENCY
ALWAYS-ON LDO POWER-SUPPLY
V
I
RESISTIVE LOAD
LDO
SYS
LDO STARTUP WAVEFORMS
THM NORMAL TO THM COLD
= 0
= 10mA
= 3.6V
1A
(< T2) TRANSITION
2.2V
FREQUENCY (kHz)
1
400Fs/div
10ms/div
3.6V
3.3V
3.6V
500mA
10
MAX8934A/B/C toc27
MAX8934A/B/C toc31
100
2V/div
2V/div
50mA/div
500mV/div
2V/div
500mA/div