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参数资料
| 型号： | MAX1898EUB41+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI+ SNGL 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 4.5 V ~ 12 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 带卷 (TR) |
Linear Charger for Single-Cell Li+ Battery
ASYNCHRONOUS FROM
ANYWHERE
V BATT < 2.5V
SHUTDOWN
CHARGER = OFF
V IN < 4.5V OR
V BATT > V IN
LED = OFF
PREQUALIFICATION
TIMEOUT/4
EXPIRES AND
V BATT < 2.5V
FAULT
LED BLINKING AT 1.5Hz
10% CHARGE CURRENT
LED = ON
V BATT > 2.5V,
3hr TIMER STARTS
V IN < 4.5V OR
V BATT > V IN
RSTRT = GND AND
V BATT < 4.0V (MAX1898EUB42)
ICHARGE > 22%
OF ISET
FAST CHARGE
100% CHARGER CURRENT
LED = ON
TOP OFF
LED = OFF
TIMEOUT = 3hr
ICHARGE < 20%
OF ISET
TIMEOUT = 3hr
V BATT < 3.9V (MAX1898EUB41)
DONE
(CHARGE COMPLETE)
CHARGER = OFF
LED = OFF
DOTTED LINE INDICATES THE STATES THAT
ARE NOT AVAILABLE WHEN CT = 0 (TIMER DISABLED)
Figure 6. Charger State Diagram
R RSTRT [ ] = ?
? 69 . 275 k ? ?
? V RSTRT ? 1 ?
R RSTRT [ k ? ] = ?
? 66 . 822 k ? ?
? V RSTRT ? 1 ?
after use when charger power is available. The restart
feature can be configured in the following ways:
? Floating the RSTRT pin disables restart. Once the
battery is charged and the charge timer expires,
charging can only be started by cycling input power
to IN, or by toggling EN/OK. When the restart func-
tion is disabled, battery drain after charge comple-
tion is reduced to 4μA. With the restart function
enabled, battery drain current after charge comple-
tion is 40μA.
? Ground the RSTRT pin to enable the default restart
threshold of 4V for the MAX1898EUB42 and 3.9V for
the MAX1898EUB41. Once the battery is charged
and the charge timer expires, charging restarts when
the cell voltage drops to the restart-threshold voltage.
? If desired, lower the restart-threshold voltage by con-
necting a resistor from RSTRT to GND. Select the
Table 2. External Transistors
resistor using the following equations:
For MAX1898EUB42:
? ?
k ? ? ? 37 . 301 k ?
? ?
? 1 . 4 V ?
for V RSTRT values between 3V and 4V.
For MAX1898EUB41:
? ?
? ? 37 . 301 k ?
? ?
? 1 . 4 V ?
for V RSTRT values between 3V and 3.9V.
Note that if CT is grounded (charge timer disabled), the
restart function is also disabled.
EXTERNAL
TRANSISTORS
PMOS
Fairchild NDT454P
PNP
Zetex FZT968
PNP
FCX717
RESISTANCE
RATING
50m ?
0.17V, V CE(sat)
0.32V, V CE(sat)
VOLTAGE LIMIT
(V)
-30
-15
-12
POWER
DISSIPATION (W)
3
3
1
PACKAGE
SOT223
SOT223
SOT89
COMMENTS
—
h FE = 300min
h FE = 160min, 1W
rating suitable for
0.5A charge or less
10
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1898EUB42 | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery 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 |
| MAX1898EUB42+ | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery 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 |
| MAX1898EUB42+T | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery 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 |
| MAX1898EUB42-T | 功能描述:电池管理 Linear Charger for 1-Cell Li+ Battery 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 |
| MAX1898EVKIT | 功能描述:电池管理 Evaluation Kit for the MAX1898 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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