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参数资料
| 型号： | MAX1873TEEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR CHARGE LI+ 16-QSOP |
| 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，锂聚合物，镍镉，镍氢 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
Simple Current-Limited Switch-Mode
Li+ Charger Controller
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NAME
CSSN
CSSP
CCS
CCV
CCI
ICHG/EN
IOUT
VADJ
REF
BATT
CSB
GND
VH
EXT
DCIN
VL
FUNCTION
Source Current-Sense Negative Input. Connect a current-sense resistor between CSSP and CSSN to
limit total current drawn from the input source. To disable input current sensing, connect CSSN to CSSP.
Source Current-Sense Positive Input. Also used for input source undervoltage sensing.
Input-Source-Current Regulation Loop Compensation Point
Battery Regulation Voltage Control-Loop Compensation Point. Pulling CCV high (to VL) through a 1.5k Ω
resistor disables the voltage control loop for charging NiCd or NiMH batteries.
Battery Charge Current Control-Loop Compensation Point
Battery Charging Current Adjust/Shutdown Input. This pin can be connected to a resistive-divider
between REF and GND to adjust the charge current sense threshold between CSB and BATT. When
ICHG/EN is connected to REF, the CSB-BATT threshold is 200mV. Pull ICHG/EN low (below 500mV) to
disable charging and reduce the supply current to 5μA.
Charge Current Monitor Output. Analog Voltage Output that is proportional to charging current. V IOUT
= 20 (V CSB - V BATT ) or 4V for a 200mV current-sense voltage (maximum load capacitance = 5nF).
Battery Regulation Voltage Adjust. Set the battery regulation voltage from 3.979V per cell to 4.421V per
cell with 1% resistors. Output accuracy remains better than 0.75% even with 1% adjusting resistors
due to reduced adjustment range. For 4.2V, the voltage-divider resistors must be equal value
(nominally 100k Ω each).
4.2V Reference Voltage Output. Bypass to GND with a 1μF ceramic capacitor.
Battery Voltage-Sense Input and Battery Current-Sense Negative Input. Bypass to GND with a 68μF for
MAX1873R, 47μF for MAX1873S, and 33μF for MAX1873T. Use capacitors with ESR < 1 Ω .
Battery Current-Sense Positive Input
Ground
Internal VH Regulator. VH internally supplies power to the EXT driver. Connect a 0.22μF ceramic
capacitor between VH and DCIN.
Drive Output for External PFET. EXT swings from V DCIN to V DCIN - 5V.
Power-Supply Input. DCIN is the input supply for charger IC. Bypass to GND with a 0.22μF ceramic
capacitor.
Internal VL Regulator. VL powers the MAX1873’s control logic at 5.4V. Bypass to GND with a 2.2μF or
larger ceramic capacitor.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1874ETE | 功能描述:电池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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 |
| MAX1874ETE+ | 功能描述:电池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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 |
| MAX1874ETE+T | 功能描述:电池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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 |
| MAX1874ETE-T | 功能描述:电池管理 Dual-Input USB/AC Adapter 1-Cell Li+ 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 |
| MAX1874EVKIT | 功能描述:电池管理 Evaluation Kit for the MAX1874 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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