IC / 8731E / MAX8731E / QFN-28

تولید کننده: MAXIM
مدل کالا: MAX8731E
تماس 8893- 6186
قیمت: 0تومان

8731E - MAX8731E - MAXIM

SMBus Level 2 Battery Charger with Remote Sense


General Description

The MAX8731E is an SMBus™ programmable multichemistry battery charger. The MAX8731E uses a minimal command set to easily program the charge voltage, charge current, and adapter current limit.

The MAX8731E charges one to four Li+ series cells and delivers up to 8A charge current. The MAX8731E drives n-channel MOSFETs for improved efficiency and reduced cost. Low-offset current-sense amplifiers provide high accuracy with 10mΩ sense resistors.

The MAX8731E current-sense amplifiers provide high accuracy (3% at 3.5A) and also provide fast cycle-bycycle current-mode control to protect against battery short circuit and system load transients.

The charger employs dual remote-sense, which reduces charge time by measuring the feedback voltage directly at the battery, improving accuracy of initial transition into constant-voltage mode. The MAX8731E provides 0.5% battery voltage accuracy directly at the battery terminal.

The MAX8731E provides a digital output that indicates the presence of the AC adapter, as well as an analog output that indicates the adapter current within 4% accuracy.

The MAX8731E is available in a small 5mm x 5mm, 28-pin, thin (0.8mm) QFN package. An evaluation kit is available to reduce design time. The MAX8731E is available in lead-free packages.



Notebook Computers

Tablet PCs

Medical Devices

Portable Equipment with Rechargeable Batteries



♦ 0.5% Battery Voltage Accuracy

♦ 3% Input Current-Limit Accuracy

♦ 3% Charge-Current Accuracy

♦ SMBus 2-Wire Serial Interface

♦ Cycle-by-Cycle Current Limit

Battery Short-Circuit Protection

Fast Response for Pulse Charging

Fast System-Load-Transient Response

♦ Dual-Remote-Sense Inputs

♦ Monitor Outputs for

Adapter Current (4% Accuracy)

AC Adapter Detection

♦ 11-Bit Battery Voltage Setting

♦ 6-Bit Charge-Current/Input-Current Setting

♦ 8A (max) Battery Charger Current

♦ 11A (max) Input Current

♦ +8V to +26V Input Voltage Range

♦ Charges Li+, NiMH, and NiCd Battery Chemistries

برای دانلود دیتاشیت این کالا اینجا کلیک کنید



نوشتن نظر

نام شما:

نظر شما: توجه : HTML ترجمه نمی شود!

رتبه: بد            خوب

کد امنیتی را در کادر زیر وارد نمایید: