Datasheet > UP8001ADAA-41

UP8001ADAA-41

更新时间： 2024-01-04 07:36:27

品牌	Logo	应用领域
力智 - UPI		电池
页数	文件大小	规格书
16页	443K
描述
Li-ion/Li Polymer Battery Charger

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数据手册

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UP8001ADAA-41 数据手册

uP8001A/B

Functional Description

The uP8001 is a highly integrated single-cell Li-ion or Li- When this pin is released from ground, the uP8001 is

Polymer batter charger specifically designed to work with activated according to settings and battery status. Logic

AC adaptor or USB port.

high of ENpin also enables the 2.8V bias voltage for biasing

the internal control and logic circuit. This voltage also

provides current for external circuits such asNTC thermistor

circuit. The maximum allowed external load for 2V8 is 2mA.

The uP8001 charges battery with a minimum current when

the battery voltage is lower than 2.8V. The charger works at

constant current mode when the battery voltage is between

2.8V and 4.2V, the charge current is programmable up to Charge Cycle

2A by an external resistor. The charger works at constant

A charge cycle can be initiated by anyone of the following

voltage mode when the battery voltage is 4.2V. When the

input voltage is removed, the uP8001 automatically enters

a low quiescent current sleep mode, dropping the battery

drain current to 1uA.

events:

- power on reset,

- the EN pin is toggled from low to high,

Other features include thermal foldback charge current,NTC - a new battery is inserted (detected by TEMP pin),

thermistor interface and automatic recharge. The uP8001

is available in thermal-enhanced and space-saving VQFN

completing a charge cycle,

and VDFNpackages.

- the battery voltage drops below a recharge threshold after

- recovery from an battery over-temperature or under-

temperature fault,

Power On Reset (POR)

The input voltage is continuously monitored for power on

A charge cycle consists of three charge modes: trickle mode

reset (POR). The uP8001 resets itself as the input voltage

(TKM), constant current mode (CCM), and constant voltage

rises above the POR rising threshold, typically 3.4V. The

mode (CVM) as shown in Figure 1.

device shuts down if the input voltage is under its POR

Trickle Mode

falling threshold, typically 2.4V, and draws less than 1uA

A charge cycle always starts with the trickle mode where

minimum charging current is used. T1 and T6 indicate the

starting of charge cycle that are initiated by VIN POR and

recharge threshold respectively. The uP8001 leaves TKM

and enters CCM at T2 and T7 if the battery voltage stays

above V_MIN(2.8V typical) for 15 consequently cycles of the

internal oscillator. The uP8001 enters TKM and the 15-cycle

counter is reset whenever the battery voltage drops below

quiescent current from the battery.

Chip Enable and 2.8V Bias Voltage

The EN pin is internally pulled high to VIN pin for chip disable/

enable. Pulling this pin to ground shuts down the uP8001

and disables the 2.8V bias voltage. When shut down, the

charge draws typically less than 30uAcurrent from the input

power and less than 1uAform the battery.

V_IN

POR Rising

Threshold

2V8

Charge Cycle

STAT#

15 cycle ~

15 cycles

V_RECHG

1/8 T_OUT

V_BAT

V_MIN

I_MIN

I_CHG

T3 T4

T9 T10

Figure 1. Typical Charge Cycles of uP8001.

uPI Semiconductor Corp., http://www.upi-semi.com

Rev. F00, File Name: uP8001A/B-DS-F0002

1 2 3 456 7 8...16

中文翻译

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与UP8001ADAA-41相关器件

型号	品牌	获取价格	描述	数据表
UP8001ADAA-42	UPI	获取价格	Li-ion/Li Polymer Battery Charger
UP8001AQAD-41	UPI	获取价格	Li-ion/Li Polymer Battery Charger
UP8001AQAD-42	UPI	获取价格	Li-ion/Li Polymer Battery Charger
UP8001BDAA-41	UPI	获取价格	Li-ion/Li Polymer Battery Charger
UP8001BDAA-42	UPI	获取价格	Li-ion/Li Polymer Battery Charger
UP8003	UPI	获取价格	Multiple-Input Li-ion Battery Charger
UP8003AQAG	UPI	获取价格	Multiple-Input Li-ion Battery Charger
UP8011	UPI	获取价格	Highly Integrated Single-Cell Li-ion Battery Charger
UP8011AMT5	UPI	获取价格	Highly Integrated Single-Cell Li-ion Battery Charger
UP8206	UPI	获取价格	Battery Protection IC

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