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| 型号： | MAX8934EETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 28/32页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER DUAL 28WQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 系列： | Smart Power Selector™ |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.1 V ~ 6.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（4x4） |
| 包装： | 管件 |
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MAX8934A–MAX8934E
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
Always-On LDO
The ultra-low quiescent current LDO is always on and is
preset to an output voltage of 3.3V. The LDO provides
up to 30mA output current. When DC and USB are inval-
id and the battery is discharging, the LDO output volt-
age tracks V SYS as it drops below 3.3V. A 1 F F ceramic
capacitor connected from LDO to GND is recommended
for most applications.
Table 3. Package Thermal Characteristics
PCB Layout and Routing
Good design minimizes ground bounce and voltage
gradients in the ground plane. GND should connect to
the power-ground plane at only one point to minimize the
effects of power-ground currents. Battery ground should
connect directly to the power-ground plane. Connect
GND to the exposed pad directly under the IC. Use mul-
tiple tightly spaced vias to the ground plane under the
exposed pad to help cool the IC. Position input capaci-
tors from DC, SYS, BATT, and USB to the power-ground
Continuous
Power
28-PIN 4mm x 4mm THIN QFN
SINGLE-LAYER PCB MULTILAYER PCB
1666.7mW 2286mW
(derate 20.8mW/ N C (derate 28.6mW/ N C
plane as close as possible to the IC. Keep high current
traces such as those to DC, SYS, and BATT as short and
wide as possible. Refer to the MAX8934 Evaluation Kit
for a suitable PCB layout example.
Dissipation
above +70 N C)
above +70 N C)
B JA
B JC
48 N C/W
3 N C/W
35 N C/W
3 N C/W
PROCESS: BiCMOS
Chip Information
Pin Configuration
Ordering I nformation
TOP VIEW
PART
TEMP RANGE
PIN-PACKAGE
21
20
19
18
17
16
15
MAX8934B ETI+
-40 N C to +85 N C
28 Thin QFN-EP*
MAX8934C ETI+
-40 N C to +85 N C
28 Thin QFN-EP*
CHG 22
SYS 23
14
13
THM
GND
MAX8934D ETI+
MAX8934E ETI+
-40 N C to +85 N C
-40 N C to +85 N C
28 Thin QFN-EP*
28 Thin QFN-EP*
SYS 24
OT 25
DOK 26
UOK 27
FLT 28
MAX8934A–
MAX8934E
*EP
12
11
10
9
8
USUS
ISET
CT
GND
V L
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
1
2
3
4
5
6
7
THIN QFN
*EXPOSED PAD
Selector Guide
PART
MAX8934AETI+
MAX8934BETI+
MAX8934CETI+
MAX8934DETI+
MAX8934EETI+
SAFETY
REGION**
1
1
1
1
1
SYS VOLTAGE (V)
5.3
4.35
4.35
4.35
4.35
THERMISTOR
BETA ?
3964
3477
3964
3477
3477
TOP-OFF TIMER
15s
60min
15s
60min
15s
USB INPUT CURRENT
LIMIT (max)
500mA
500mA
500mA
1.5A
500mA
** For safety region 2, contact factory.
? For thermistor Beta = 3477, contact factory.
28
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8934EETI+ | 功能描述:电池管理 Dual Linear Charger Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8934EETI+ | 制造商:Maxim Integrated Products 功能描述:IC BATTERY CHARGER DUAL 28TQFN 制造商:Maxim Integrated Products 功能描述:IC, BATTERY CHARGER, DUAL, 28TQFN |
| MAX8934EETI+T | 功能描述:电池管理 Dual Linear Charger Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8934GETI+ | 功能描述:电池管理 Dual Linear Charger Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8934GETI+CAK | 功能描述:电池管理 Dual Input Linear Chargers Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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