Cellular Handsets - Parts List



		Overview
		Suggested Components
		Application Notes

Maxim > Solutions > Cellular Handsets

NiMH/NiCd Battery Chargers

DATA SHEETS

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Title/Parts

Key Advantages

QV PDF

Overvoltage-Protection Controllers with a Low R_ON Internal FET
MAX4970, MAX4971, MAX4972

Up to +28V Input Voltage Protection Without External nFET in a Small, 2mm x 1.5mm, 12-Bump WLP

QV PDF

Complete Backup-Management ICs for Lithium and NiMH Batteries
MAX8568A, MAX8568B

QV PDF

Highly Integrated, Linear Battery Charger with Thermal Regulation for Portable Applications
MAX1501

First Temperature-Regulated, CC-CV Battery Charger with Overvoltage Protection for Portable Applications

QV PDF

NiCd/NiMH Battery Fast-Charge Controllers
MAX712, MAX713

Charges 1-16 Series Cells at Rates Up to 4C

Key Specifications: Battery Chargers

Part Number

Cell Chemistry

NiMH/ NiCd Cells

Lithium Ion Cells

Protected V_IN
(V)

Charging V_IN
(V)

Charge Rate Set by

Max. I_CHG
(A)

Charge Termination

Charge Regulation

Features

EV Kit

Package/Pins

Smallest Available Pckg.
(mm²)

Oper. Temp.
(°C)

max

≥

max w/pins

MAX1501

Li-Ion

Li-Polymer

NiCd

NiMH

6.25

Resistor

1.4

Timer

Linear

Stand Alone

Thermal Die Regulation

Timer

Yes

TQFN/16

-40 to +85

MAX712

NiMH

1
2
3
4
5
6
7
8
9
10
11

Zero ΔV

Linear

Switchmode

Stand Alone

Thermistor Input

Timer

CDIP(N)/16

PDIP(N)/16

SOIC(N)/16

-55 to +125

-40 to +85

0 to +70

MAX713

NiCd

NiMH

1
2
3
4
5
6
7
8
9
10
11

-ΔV

Linear

Switchmode

Stand Alone

Thermistor Input

Timer

CDIP(N)/16

PDIP(N)/16

SOIC(N)/16

-55 to +125

-40 to +85

0 to +70

See All Battery Chargers (62)

Key Specifications: Battery Backup Circuits

Part Number

Reset Thresh.
(V)

I_CC
(µA)

Features

RoHS Available

Package/Pins

Smallest Available Pckg.
(mm²)

Oper. Temp.
(°C)

max

max w/pins

MAX8568A

2.5 to 3.3

3.3 to 5.5

Adjustable Reset Input

Batt Freshness Seal

Power Fail Comparator

Yes

TQFN/16

-40 to +85

MAX8568B

See Data Sheet

TQFN/16

See All Battery Backup Circuits (86)

Key Specifications: Overvoltage Protection Controllers

Part Number

Channels

V_IN
(V)

Over Voltage Trip Level
(V)

Under Voltage Lockout
(V)

V_GATE
(V)

t_GATE (On)
(ms)

t_GATE (Off)
(µs)

Features

Package/Pins

min

max

MAX4970

2.2

5.9

2.45

Auto Retry

Internal Charge Pump

Internal Current-Limit Switch

Internal Disconnect Switch

Soft Start

UCSP/12

WLP/12

MAX4972

4.65

UCSP/12

WLP/12

See All Overvoltage Protection Controllers (47)