Rainbow-electronics MAX8982X Bedienungsanleitung PDF herunterladen (Seite 1)

EVALUATION KIT

AVAILABLE

_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Power-Management ICs for

ICERA E400/E450 Platform

MAX8982A/MAX8982X

19-5472; Rev 1; 1/11

+Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel. These devices have a minimum order inc-

rement of 1k pieces.

General Description

The MAX8982A/MAX8982X are complete power-man-

agement ICs for the latest LTE/WCDMA/GSM/GPRS/

EDGE data card based on the new ICERA platform (E400/

E450). The MAX8982A operates from a 4.1V to 5.5V

supply and contains four efficient step-down converters,

nine low dropout linear regulators (LDOs) to power all

RF and baseband circuitry, three current regulators with

programmable current up to 24mA and embedded flash

timers, and an I

C serial interface to program individual

regulator output voltages as well as on/off control for flex-

ibility. The linear regulators provide greater than 60dB

PSRR, less than 45FV of output noise, and minimal cross

coupling noise between LDOs.

The MAX8982X operates from a 2.9V to 5.5V supply. The

MAX8982X has the same features as the MAX8982A,

except it does not have BUCK3, BUCK4, and LDO8.

All buck converters and LDOs are enabled/disabled by

either I

C or PWR_REQ control signal after power-up.

This feature provides more flexibility in system design.

Applications

GSM, GPRS, EDGE, WCDMA, and LTE

Data Card with New ICERA Platform (E400/E450)

Features

S 4 High-Efficiency Buck Converters

0.9V at 1.2A for CORE with DVS Function (0.6V

to 1.2V in 25mV Steps) and Slew Rate Control

1.8V at 600mA for System IO

3.2V at 600mA for All LDO Inputs (2.9V to 3.65V

in 50mV Steps) (MAX8982A Only)

3.4V at 1.8A for GSM/WCDMA PA (3.0V to 3.75V

in 50mV Steps) (MAX8982A Only)

9 LDO Linear Regulators

2.7V at 300mA on LDO1 for RF Transceiver

1.8V at 150mA on LDO2 for RF Transceiver

2.8V at 150mA on LDO3 for Analogue BB

0.9V at 50mA on LDO4 for BB PLL with the

Separate Input for a Higher Efficiency

3.0V at 150mA on LDO5 for SD Card

2.7V at 150mA on LDO6 for TCXO

1.8V or 3.0V at 150mA on LDO7 for SIM

3.0V at 150mA on LDO8 for USB with the

Separate Input (MAX8982A Only)

0.9V at 50mA on LDO9 for BB with the Separate

Input for a Higher Efficiency

32 Programmable Voltage Options and External

Input on BUCK1 (0.9V Default) for DVS

S 16 Programmable Voltage Options for BUCK3

(MAX8982A Only)

S 16 Programmable Voltage Options on BUCK4

(MAX8982A Only)

S Programmable Voltage Options for All LDOs

(LDO8 for MAX8982A Only)

S BUCK2, BUCK3 (MAX8982A Only), LDO3, and

Internal 32kHz Clock Default On at Initial Startup

S Some Buck Converters and LDOs are Enabled by

Either I

C or Power Request Control (PWR_REQ)

After Power-Up

S 3 Current Regulators with 8 Dimming Current

Options Up to 24mA with Embedded Flash Timer

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX8982AEWO+T -40°C to +85°C 42 WLP

MAX8982XEWO+T -40°C to +85°C 42 WLP

1 2 3 4 5 6 ... 72 73

Inhaltsverzeichnis

Seite 1 - MAX8982A/MAX8982X

EVALUATION KITAVAILABLE _______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and orde

Seite 2

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X10BUCK2 ELECTRICAL CHARACTERISTICS(MAX8982A: VIN1A = VIN1B = +5.0V and COUT1,2,3+CIN

Seite 3

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X11BUCK3 ELECTRICAL CHARACTERISTICS (continued)(MAX8982A only, VIN1A = VIN1B = +5.0V

Seite 4

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X12OUT1 (LDO1) ELECTRICAL CHARACTERISTICS(MAX8982A: VDDA = +3.2V and CVDD_ = 10FF, MA

Seite 5

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X13OUT2 (LDO2) ELECTRICAL CHARACTERISTICS (continued)(MAX8982A: VDDA = +3.2V and CV

Seite 6

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X14OUT4 (LDO4) ELECTRICAL CHARACTERISTICS(MAX8982A/MAX8982X: VIN3 = VBUCK2 = 1.8V, CI

Seite 7

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X15OUT6 (LDO6) ELECTRICAL CHARACTERISTICS(MAX8982A: VDDB = +3.2V and CVDD_ = 10FF,

Seite 8

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X16OUT8 (LDO8) ELECTRICAL CHARACTERISTICS(MAX8982A only, VIN4 = VIN1_ = +5.0V, CIN4 =

Seite 9

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X17OUT9 (LDO9) ELECTRICAL CHARACTERISTICS (continued)(MAX8982A/MAX8982X: VIN3 = VBUCK

Seite 10

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X18FLASH TIMER ELECTRICAL CHARACTERISTICS(MAX8982A: VIN1A = VIN1B = +5V and VDD_ = +3

Seite 11

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X19 Typical Operating Charac

Seite 12

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X2Table of ConTenTsGeneral Description . . . . . . . . . . . . . . . . . . . . . . .

Seite 13

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X20 Typical Operating Characteristics (continu

Seite 14

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X21 Typical Operating Characteristics (continu

Seite 15

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X22 Typical Operating Characteristics (continu

Seite 16

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X23 Typical Operating Characteristics (continu

Seite 17

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X24 Typical Operating Characteristics (continu

Seite 18

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X25

Seite 19

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X26 Pin Configurations

Seite 20

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X27

Seite 21

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X28 Pin Desc

Seite 22

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X29Table 1. Summary of Power Supplies

Seite 23

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X3Table of ConTenTs (ConTinued)Ramp-Up/Down Slope Control on BUCK1 . . . . . . . . .

Seite 24

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X30Table 1. Summary of Power Supplies (continued)*BUCK3, BUCK4, and OUT8 are for the

Seite 25

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X31Figure 1. MAX8982A Typical Application Circuit and Functional Block DiagramNIN1ALX

Seite 26

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X32Table 2. External Component List for Figure 1Note: Input/output capacitance should

Seite 27

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X33Figure 2. MAX8982X Typical Application Circuit and Functional Block DiagramNIN1AVD

Seite 28

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X34 Detailed DescriptionPower-On/Off ControlThe power-on/off s

Seite 29

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X35Active DischargeAll regulators include an internal resistor for discharging the ou

Seite 30

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X36Figure 4. MAX8982A/MAX8982X Power-On Timing Diagram at Initial Startup with EN Con

Seite 31

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X37BUCK1, BUCK2, and BUCK3 Step-Down ConvertersThe step-down converters are optim

Seite 32

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X38Ramp-Up/Down Slope Control on BUCK1BUCK1 uses a controlled ramp rate when it is

Seite 33

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X39Current Regulators (DR1, DR2, DR3)The ICs have three current regulators that

Seite 34

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X4Table of ConTenTs (ConTinued)List of FiguresFigure 1. MAX8982A Typical Application

Seite 35

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X40RESET SIGNAL to B/B ChipsetThe ICs include one dedicated reset output calle

Seite 36

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X41REPEATED START (Sr) commands instead of a STOP command to maintain contr

Seite 37

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X42Slave AddressThe ICs act as a slave transmitter/receiver. The slave addres

Seite 38

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X434) The master sends the 8-bit register pointer of the first register to write.5)

Seite 39

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X44Table 5. Register MapADDRESS(HEX)POR(HEX)R/W NAMEBIT 7 (MSB)BIT 6 BIT 5 BIT 4 BIT

Seite 40

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X45Table 6. CHIPID RegisterTable 7. IRQM Register (Interrupt Mask)Table 5. Register M

Seite 41

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X46Table 8. IRQ RegisterTable 9. STATUS RegisterNote: The IRQ register is effective o

Seite 42

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X47Table 11. LED1FT2 Register (LED1 (DR1) Flash Timer t1 Setting)Table 12. LED1FT3 Re

Seite 43

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X48Table 14. LED1FT5 Register (LED1 (DR1) Flash Timer t4 Setting)Table 15. LED1FT6 Re

Seite 44

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X49Table 17. LED2FT2 Register (LED2 (DR2) Flash Timer t1 Setting)Table 18. LED2FT3 Re

Seite 45

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X5Table of ConTenTs (ConTinued)Table 14. LED1FT5 Register (LED1 (DR1) Flash Timer t4

Seite 46

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X50Table 20. LED2FT5 Register (LED2 (DR2) Flash Timer t4 Setting)Table 21. LED2FT6 Re

Seite 47

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X51Table 23. LED3FT2 Register (LED3 (DR3) Flash Timer t1 SettingTable 24. LED3FT3 Reg

Seite 48

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X52Table 26. LED3FT5 Register (LED3 (DR3) Flash Timer t4 Setting)Table 27. LED3FT6 Re

Seite 49

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X53Table 29. BUCK1DVS1 Register (Output Voltage Setting for BUCK1 (DVS1 = Low))X = Do

Seite 50

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X54Table 30. BUCK1DVS2 Register (Output Voltage Setting for BUCK1 (DVS1 = High))X = D

Seite 51

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X55Table 31. BUCK2 Register (On/Off Control for BUCK2)Table 32. LDO1 Register (On/Off

Seite 52

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X56Table 34. LDO2 Register (ON/OFF Control for LDO2)Table 36. LDO3 Register (On/Off C

Seite 53

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X57Table 37. LDO3V Register (Output Voltage Setting for OUT3)Table 38. LDO4 Register

Seite 54

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X58Table 39. LDO4V Register (Output Voltage Setting for OUT4)Table 40. LDO5 Register

Seite 55

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X59X = Don’t care.Note: The enable mapping for LDO6 is different from all other LDOs.

Seite 56

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X6Table of ConTenTs (ConTinued)Table 51. On/Off Register (On/Off Control for BUCK3, B

Seite 57

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X60Table 43. LDO6V Register (Output Voltage Setting for OUT6)X = Don’t care.Table 44.

Seite 58

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X61X = Don’t care.Note: This register is not used by the MAX8982X.Table 45. VSIMV Reg

Seite 59

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X62Note: This register is not used by the MAX8982X.X = Don’t care.Table 47. LDO8V Reg

Seite 60

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X63Table 49. LDO9V Register (Output Voltage Setting for OUT9)Table 50. LED_EN Registe

Seite 61

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X64Table 51. On/Off Register (On/Off Control for BUCK3, BUCK4, and the Internal 32kHz

Seite 62

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X65Table 53. BUCK4 Register (Output Voltage Setting for BUCK4)Note: This register is

Seite 63

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X66Table 54. CURRENTREG1 Register (Current Setting for Current Regulators DR1 and DR2

Seite 64

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X67Table 56. RAMP Register (Slope Setting for BUCK1)Table 57. BUCK1-4ADIS Register (A

Seite 65

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X68Table 58. LDO1-8ADIS Register (Active Discharge Settings for LDO1–LDO8)Table 59. L

Seite 66

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X69 Applications InformationInductor SelectionThe step-down converters

Seite 67

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X7Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent

Seite 68

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X70*Recommended for BUCK4.**Recommended for BUCK1.***Recommended for BUCK2 and BUCK3.

Seite 69

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X71Output Capacitor SelectionThe output capacitor, COUT, is required to keep

Seite 70

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X72 Pac

Seite 71

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982XMaxim cannot assume responsibility for use of any circuitry other than circuitry ent

Seite 72

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X8GENERAL ELECTRICAL CHARACTERISTICS (continued)(MAX8982A: VIN1A = VIN1B = +5.0V and

Seite 73

Power-Management ICs for ICERA E400/E450 PlatformMAX8982A/MAX8982X9GENERAL ELECTRICAL CHARACTERISTICS (continued)(MAX8982A: VIN1A = VIN1B = +5.0V and

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