MAX1874ETE Maxim Integrated Products, MAX1874ETE Datasheet - Page 7

• Manufacturer Part Number: MAX1874ETE
• Description: Battery Management Dual-Input USB/AC Adapter 1-Cell Li+
• Manufacturer: Maxim Integrated Products

Specifications of MAX1874ETE

• Battery Type: Li-Ion, Li-Polymer
• Operating Supply Voltage: 4.35 V to 6.5 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TQFN-16
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No

10V/div
10V/div
10V/div
10V/div
1A/div
(V
unless otherwise noted.)
1000
900
800
700
600
500
400
300
200
100
10
USB
9
8
7
6
5
4
3
2
1
0
0
Li+ Charger with OVP and Thermal Regulation
0
0
V
V
V
= V
BATTERY CURRENT AND VOLTAGE
EN
DCLV
BATT
= 0
1
DC CONNECT WAVEFORMS
50
= 4.2V
DC
V
= V
vs. USB INPUT VOLTAGE
OFF-BATTERY LEAKAGE
USB
DC
V
I
BATT
BATT
2
= V
100
= 0
= 5V, V
vs. TIME
TIME (MIN)
DCLV
40ms/div
V
3
USB
150
_______________________________________________________________________________________
BATT
(V)
4
= V
200
= 3.9V
EN
5
1.5AHr CELL
MAX1874 toc16
= 5V, V
MAX1874 toc13
250
CHG
6
300
Dual-Input, USB/AC Adapter, 1-Cell
7
BATT
DC
DCLV
PON
I
DCOK
8.0
7.2
6.4
5.6
4.8
4.0
3.2
2.4
1.6
0.8
0
BATT
500mA/div
= 4.2V, V
20V/div
20V/div
5V/div
5V/div
5V/div
5V/div
5V/div
Typical Operating Characteristics (continued)
10
9
8
7
6
5
4
3
2
1
0
0
THRM
V
V
V
V
RESPONSE TO OVERVOLTAGE INPUT
EN
USB
BATT
DC
= 0
= V
1
USB CONNECT WAVEFORMS
= 0
= 4.2V
OFF-BATTERY LEAKAGE
DCLV
vs. DC INPUT VOLTAGE
V
= V
DC
2
= 0, V
REF
USB = 0
V
40ms/div
3
40ms/div
DCIN
/ 2, V
BATT
(V)
4
= 3.9V
DCI
5
= V
MAX1874 toc17
MAX1874 toc14
6
REF
, V
7
USB
PON
I
UOK
DC
DCLV
PON
DCOK
BATT
USEL
500mA/div
10V/div
10V/div
10V/div
10V/div
1A/div
5V/div
5V/div
= 5V, Circuit of Figure 4, T
600
500
400
300
200
100
0
DC STARTUP WAVEFORMS FOR ENABLE
0
USB LEAKAGE vs. DC INPUT VOLTAGE
2
DC CONNECT WAVEFORMS
V
4
USB
6
V
= 0, V
BATT
LEAKAGE FROM USB TO GND
V
EN
V
10ms/div
40ms/div
8
DCIN
= 5V
BATT
= 3.9V
10
(V)
= 3.9V
12
A
= +25°C,
14
MAX1874 toc15
MAX1874 toc18
16
18
7
DC
DCLV
PON
I
DCOK
EN
CHG
I
BATT
BATT