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参数资料
| 型号： | MAX14525ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/7页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY SWITCH 4INPUTS 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 电源管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.2 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（2x2） |
| 包装： | 带卷 (TR) |
Battery Switch with Four Enable Inputs
Pin Description
PIN
1
2
3
4
5
6
7, 8
—
NAME
BAT
JIG
ON_K
S_EN
GND
TA
IN
EP
FUNCTION
Lithium-Ion (Li+) Battery Connection
Enable Input with Standard Logic Threshold
Enable Input with Accurate Threshold (+3.0V)
Enable Input with Standard Logic Threshold Logically ANDed with IN
Ground
Enable Input with High Threshold
Power Switch Input. The power switch input voltage range is from +2.2V to +5.5V. Connect a 0.1μF
capacitor from IN to GND. Connect pins 7 and 8 together for proper operation.
Exposed Pad. Connect EP to ground. Do not use EP as the only ground connection.
Detailed Description
The MAX14525 features a low 35m Ω (typ) R ON load
switch with four unique enable inputs. The MAX14525
can be used to disconnect the lithium-ion battery from
the loads in portable devices such as cell phones. It
operates from a +2.2V to +5.5V supply voltage.
The MAX14525 features an ultra-low 0.8μA (typ) quies-
cent supply current to maximize battery life in portable
devices. The device is enabled from four possible
inputs: external charge connection travel adapter (TA),
on key (ON_K), factory mode enable (JIG), and switch
enable (S_EN). The S_EN input is internally ANDed with
the switched battery connection (IN).
TA Input
The TA input on the MAX14525 can be connected
directly to the external charger source. The TA input is
high-voltage capable (+28V max) and features a high
threshold voltage to limit false voltage trips, and an
input resistance of 100k Ω (typ) to ground.
ON_K Input
The ON_K line is active high and is pulled up to the
lithium-ion battery through a momentary push button
switch. This input features an accurate voltage detec-
tor threshold which does not enable the load switch
until the battery threshold is above +3.0V ±2%. When
the battery has a very low charge and the on key is
pressed, the accurate threshold does not allow the
phone to boot up.
JIG Input
The JIG input on the MAX14525 is a logic-level input
(+1.8V compatible) from an external source to indicate
the device has been connected to a factory cable. This
signal requires a standard logic-input threshold voltage
(+1.4V high).
S_EN Input
The S_EN input on the MAX14525 is a logic-level input
(+1.8V compatible) from an external source used to
hold the switch on when the triggering condition (TA,
ON_K, or JIG) is removed. The standard logic thresh-
old voltage comes from the host microprocessor that
pulls S_EN high once the code has begun running on
the microprocessor. The S_EN input is internally
ANDed with the voltage on IN. The IN connection to the
AND gate thresholds are standard CMOS values of 1/3
and 2/3 of V BAT .
Chip Information
PROCESS: CMOS
6
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相关代理商/技术参数 |
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| MAX14526BEEWP+T | 功能描述:电池管理 UMIC w/Charger Detection 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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| MAX14526EEWP+T | 功能描述:USB 接口集成电路 USB MUX Interface RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MAX14526EEWP+TCJ8 | 功能描述:USB 接口集成电路 USB MUX Interface RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| MAX14527BETA+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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