Instrukcja obsługi Microchip MCP73830L

Microchip nieskategoryzowany MCP73830L

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 2011-2019 Microchip Technology Inc. DS20005049E-page 1

MCP73830/L

Features:

• Complete Linear Charge Management Controller:

- Integrated pass transistor

- Integrated current sense

- Integrated Reverse Discharge Protection

• Constant-Current/Constant Voltage Operation

• High-Accuracy Preset Voltage Regulation:

- 4.20V +0.75%

• Programmable Charge Current:

- MCP73830L: 20 mA-200 mA

- MCP73830: 100 mA-1000 mA

• Soft Start to Avoid Inrush Current

• Preconditioning:

- 10% and no preconditioning

• Fixed Elapsed Timer: 4 Hours

• Fixed Preconditioning Timer: 1 Hour

• Automatic Recharge: No Auto-Recharge is also

Available with Selected Options

• Automatic End-of-Charge (EOC) Control

Termination:

- 7.5% and 10%

• Automatic Power-Down when Input Power

Removed

• Undervoltage Lockout (UVLO)

• Chip/Charge Enable Pin (CE)

• Packaging:

- TDFN-6 (2x2 mm)

• Temperature Range: -40°C to +85°C

Applications:

• Bluetooth Headsets

• Portable Media Players

• Rechargeable 3D Glasses

• Toy and Gaming Controllers

Description:

The MCP73830/L are highly integrated, Li-Ion battery

charge management controllers for use in space-limited

applications. The MCP73830/L devices provide specific

charge algorithms for single-cell Li-Ion/Li-Polymer batter-

ies to achieve optimal capacity and safety in the shortest

charging time possible. Along with its small physical size,

the low number of external components makes the

MCP73830/L ideally suitable for portable applications.

The MCP73830L employs a constant-current/constant

voltage charge algorithm. The minimum 20 mA regu-

lated constant, fast charge current enables the design

in small Li-Ion batteries and low supply current applica-

tions. The fast charge, constant-current value is set

with one external resistor, from 20 mA to 200 mA. The

MCP73830 allows up to 1000 mA charge current for

applications that require faster constant current.

The MCP73830/L devices provide a thermal foldback

function that limits the charge current, based on die

temperature during high-power or high-ambient condi-

tions. This thermal regulation optimizes the charge

cycle time while maintaining device reliability.

The MCP73830/L devices are fully specified over the

ambient temperature range of -40°C to +85°C. The

MCP73830/L is available in a 6 lead, TDFN package.

Package Types (Top View)

MCP73830/L

2x2 TDFN *

* Includes Exposed Thermal Pad (EP); see Table 3-1.

VBAT

STAT CE

VDD

PROG

VSS

TABLE 1: AVAILABLE FACTORY PRESET OPTIONS

Charge Voltage Preconditioning Charge Current End-of-Charge Control Auto-Recharge

4.2V 10%/Disabled 7.5%/10% Yes/No

Single-Cell Li-Ion/Li-Polymer Battery Charge Management

Controllers in 2x2 TDFN

MCP73830/L

DS20005049E-page 2  2011-2019 Microchip Technology Inc.

Typical Application

Functional Block Diagram

STAT

VDD VBAT 3

PROG

Regulated

Wall Cube

4.7 µF

2 k

–

1-Cell

Li-Ion

Battery

VSS

4.7 µF

1 k

MCP73830/L

STAT

PROG

VBAT

VSS

Direction

Control

TERM

–

UVLO,

Reference,

Charge

Control,

Timer and

Status Logic

G = 0.001

VDD

–

VREF

PRECONDITION

–

VREF

–

VREF

CHRG

–

VREF

UVLO

–

VREF

VDD

 2011-2019 Microchip Technology Inc. DS20005049E-page 3

MCP73830/L

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

VDD, VBAT.........................................................................7.0V

All Inputs and Outputs w.r.t. VSS ..............-0.3 to (V

DD + 0.3)V

Maximum Junction Temperature, TJ............Internally Limited

Storage temperature .....................................-65°C to +150°C

ESD protection on all pins

Human Body Model (1.5 k in Series with 100 pF)2 kV

Machine Model (200 pF, No Series Resistance) .............300V

† Notice: Stresses above those listed under “Maximum

Ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification

is not implied. Exposure to maximum rating conditions

for extended periods may affect device reliability.

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all limits apply for V

DD = [VREG(Typical) + 0.3V] to 6V,

TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG(Typical) + 1.0V].

Parameters Sym. Min. Typ. Max. Units Conditions

Supply Input

Input Voltage Range VDD 3.75 — 6 V

Supply Current ISS — 0.6 2 µA Shutdown;

VDD  VSTOP – 300 mV

— 500 900 µA Charging

— 25 50 µA Standby; CE = VDD

Battery Discharge Current

Output Reverse

Leakage Current

IDISCHARGE — 10 15 µA Charge Complete;

VDD is Present

— 0.5 — µA Shutdown

(VDD  VBAT or VDD < VSTOP)

— 0.5 — µA Standby; CE = VDD

Undervoltage Lockout

UVLO Start Threshold VSTART 3.45 3.6 3.75 V VDD Low-to-High

UVLO Stop Threshold VSTOP 3.15 3.3 3.45 V VDD High-to-Low

UVLO Hysteresis V HYS — 300 — mV

Voltage Regulation (Constant Voltage Mode)

Regulated Output

Voltage Options

VREG — 4.20 — V V DD = [VREG(Typical) + 1V];

IOUT = 30 mA

Output Voltage

Tolerance

VRTOL -0.75 — 0.75 % T

A= -5°C to +55°C

Line Regulation VBAT/VBAT)/

VDD|

— 0.2 0.3 %/V V

DD = [VREG(Typical) + 1V] to 6V;

IOUT = 30 mA

Load Regulation V

BAT/VBAT| — 0.2 0.3 % IOUT = 30 mA – 150 mA;

VDD = [VREG(Typical) + 1V]

Supply Ripple

Attenuation

PSRR — 52 — dB IOUT = 30 mA; 10 Hz to 1 kHz

— 47 — dB IOUT = 30 mA; 10 Hz to 10 kHz

Note 1: Not production tested. Ensured by design.

Specyfikacje produktu

Marka:	Microchip
Kategoria:	nieskategoryzowany
Model:	MCP73830L

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