ACT8935QJ10D-T

ACT8935QJ10D-T Datasheet

ACT8935

Part	Datasheet
ACT8935QJ10D-T	ACT8935QJ10D-T (pdf)

Related Parts	Information
EA8935	EA8935
ACT8935	ACT8935

PDF Datasheet Preview
ACT8935 Advanced PMU for SiRF PrimaTM and Atlas IVTM • Optimized for SiRF PrimaTM/Atlas IVTM Processors • Three Step-Down DC/DC Converters • Four Low-Dropout Linear Regulators • Integrated ActivePathTM Charger • I2CTM Serial Interface • Advanced Enable/Disable Sequencing Controller • Minimal External Components • Tiny 5x5mm TQFN55-40 Package − 0.75mm Package Height − Pb-Free and RoHS Compliant The ACT8935 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the SiRF PrimaTM and Atlas IVTM processors. This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators, along with a complete battery charging solution featuring the advanced ActivePathTM system-power selection function. The three DC/DC converters utilize a highefficiency, fixed-frequency 2MHz , current-mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up to 900mA of output current, while the third supports up to 700mA. All four lowdropout linear regulators are high-performance, low-noise regulators that each supply up to 150mA. The ACT8935 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package. TYPICAL APPLICATION DIAGRAM Innovative PowerTM Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. I2CTM is a trademark of NXP. SiRF PrimaTM and Atlas IVTM are trademarks of SiRF Technology, Inc. Copyright 2013 Active-Semi, Inc. TABLE OF CONTENTS General Information 01 Functional Block 03 Ordering 04 Pin Configuration 04 Pin 05 Absolute Maximum Ratings 07 I2C Interface Electrical Characteristics 08 Global Register Map 09 Register and Bit Descriptions 10 System Control Electrical 15 Step-Down DC/DC Electrical Characteristics 16 Low-Noise LDO Electrical 17 ActivePathTM Charger Electrical 18 Typical Performance 20 Application Information 27 Interfacing with the SiRF PrimaTM/Atlas IVTM 27 Control Signals 28 Push-Button 29 Control 29 Functional Description 33 I2C Interface 33 Voltage Monitor and 33 Thermal Shutdown 34 Step-Down DC/DC Regulators 35 General 35 100% Duty Cycle 35 Synchronous 35 Soft-Start 35 Compensation 35 Configuration 35 OK[ ] and Output Fault 36 PCB Layout Considerations 36 Low-Noise, Low-Dropout Linear 37 General 37 Output Current Limit 37 Compensation 37 Configuration 37 OK[ ] and Output Fault 37 PCB Layout Considerations 37 TQFN55-40 Package Outline and Dimensions 45 Innovative PowerTM Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. Copyright 2013 Active-Semi, Inc. FUNCTIONAL BLOCK DIAGRAM Optional AC Adaptor USB 4.35V to 6V CHGIN ACIN VSYS nSTAT BODY SWITCH ActivePath Control CHGLEV ISET OUT2 nRSTO PBIN PUSH BUTTON OUT2 nPBSTAT OUT2 nIRQ PWRHLD PWREN EXTON LBI OUT2 nLBO 1.2V REFBP Reference ACT8935 VSYS System Supply ORDERING INFORMATION PART NUMBER VOUT1 ACT8935QJ10D-T 1.8V ACT8935QJ1E2-T 2.5V VOUT2 3.3V 3.3V VOUT3 VOUT4 VOUT5 VOUT6 VOUT7 PACKAGE PINS TEMPERATURE RANGE 1.2V 1.2V 1.2V 2.5V 3.3V TQFN55-40 -40°C to +85°C 1.2V 1.2V 1.2V 2.5V 3.3V TQFN55-40 -40°C to +85°C All Active-Semi components are RoHS Compliant and with Pb-free plating unless otherwise specified. Standard product options are listed in this table. Contact factory for custom options. Minimum order quantity is 12,000 units. ACT8935QJ_ _-T Active-Semi Product Number Package Code Pin Count Option Code Tape and Reel PIN CONFIGURATION TOP VIEW NC VP1 SW1 GP12 SW2 VP2 OUT2 CHGIN VSYS ACTIVE AA33 DATE CODE nRSTO nIRQ nPBSTAT GP3 SW3 VP3 OUT3 PWREN nLBO LBI Thin - QFN TQFN55-40 Innovative PowerTM Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. Copyright 2013 Active-Semi, Inc. PIN DESCRIPTIONS PIN NAME REFBP Reference Bypass. Connect a 0.047uF ceramic capacitor from REFBP to GA. This pin is discharged to GA in shutdown. OUT1 Output Feedback Sense for REG1. Analog Ground. Connect GA directly to a quiet ground node. Connect GA, GP12 and GP3 together at a single point as close to the IC as possible. OUT4 REG4 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT4 to GA. The output is discharged to GA with resistor when disabled. OUT5 REG5 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT5 to GA. The output is discharged to GA with resistor when disabled. Power Input for REG4, REG5, REG6, and REG7. Bypass to GA with a high quality ceramic capacitor placed as close to the IC as possible. OUT7 REG7 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT7 to GA. The output is discharged to GA with resistor when disabled. OUT6 REG6 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT6 to GA. The output is discharged to GA with resistor when disabled. Master Enable Input. Drive PBIN to VSYS through a resistor to enable the IC, drive PBIN VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. 2 IMAX Maximum Output Current. Innovative PowerTM - 16 - Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. Copyright 2013 Active-Semi, Inc. LOW-NOISE LDO ELECTRICAL CHARACTERISTICS VINL = 3.6V, COUT4 = COUT5 = COUT6 = COUT7 = 1.5µF, TA = 25°C, LOWIQ[-] = [0], unless otherwise specified. PARAMETER Operating Voltage Range TEST CONDITIONS MIN TYP MAX UNIT Output Voltage Accuracy Line Regulation Load Regulation Power Supply Rejection Ratio Supply Current per Output VOUT 1.2V, TA = 25°C, IOUT = 10mA VOUT < 1.2V, TA = 25°C, IOUT = 10mA VINL = Max VOUT + 0.5V, 3.6V to 5.5V LOWIQ[ ] = [0] VINL = Max VOUT + 0.5V, 3.6V to 5.5V LOWIQ[ ] = [1] IOUT = 1mA to IMAX f = 1kHz, IOUT = 20mA, VOUT = 1.2V f = 10kHz, IOUT = 20mA, VOUT = 1.2V Regulator Enabled, LOWIQ[ ] = [0] Regulator Enabled, LOWIQ[ ] = [1] VNOM VNOM mV/V 75 dB Soft-Start Period Power Good Threshold Power Good Hysteresis Output Noise Discharge Resistance REG4 Regulator Disabled VOUT = 2.9V VOUT Rising VOUT Falling IOUT = 20mA, f = 10Hz to 100kHz, VOUT = 1.2V LDO Disabled, DIS[ ] = 1 %VNOM %VNOM µVRMS Dropout Voltage Maximum Output Current Limit Stable COUT4 Range REG5 IOUT = 80mA, VOUT > 3.1V VOUT = 95% of regulation voltage Dropout Voltage Maximum Output Current IOUT = 80mA, VOUT > 3.1V 140 280 Current Limit Stable COUT5 Range REG6 VOUT = 95% of regulation voltage Dropout Voltage Maximum Output Current IOUT = 80mA, VOUT > 3.1V Current Limit Stable COUT6 Range REG7 VOUT = 95% of regulation voltage Dropout Voltage IOUT = 80mA, VOUT > 3.1V 140 280 VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. 2 IMAX Maximum Output Current. 3 Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the regulation voltage for 3.1V output voltage or higher . LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. Under heavy overload conditions the output current limit folds back by 30% typ Innovative PowerTM - 17 - Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. Copyright 2013 Active-Semi, Inc. ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS VCHGIN = 5.0V, TA = 25°C, unless otherwise specified. PARAMETER ActivePath CHGIN Operating Voltage Range CHGIN UVLO Threshold CHGIN UVLO Hysteresis CHGIN OVP Threshold CHGIN OVP Hysteresis CHGIN Supply Current CHGIN to VSYS On-Resistance CHGIN to VSYS Current Limit VSYS REGULATION VSYS Regulated Voltage nSTAT OUTPUT nSTAT Sink current nSTAT Leakage Current ACIN AND CHGLEV INPUTS CHGLEV Logic High Input Voltage CHGLEV Logic Low Input Voltage CHGLEV Leakage Current ACIN Voltage Thresholds ACIN Hysteresis Voltage ACIN Leakage Current TH INPUT TH Pull-Up Current VTH Upper Temperature Voltage Threshold VTHH VTH Lower Temperature Voltage Threshold VTHL VTH Hysteresis TEST CONDITIONS CHGIN Voltage Rising CHGIN Voltage Falling CHGIN Voltage Rising CHGIN Voltage Falling VCHGIN < VUVLO VCHGIN < VBAT + 50mV, VCHGIN > VUVLO VCHGIN > VBAT + 150mV, VCHGIN > VUVLO Charger disabled, IVSYS = 0mA IVSYS = 100mA ACIN = VSYS ACIN = GA, CHGLEV = GA ACIN = GA, CHGLEV = VSYS IVSYS = 10mA VnSTAT = 2V VnSTAT = 4.2V VCHGLEV = 4.2V ACIN voltage rising ACIN voltage falling VACIN = 4.2V VCHGIN > VBAT + 100mV, Hysteresis = 50mV Hot Detect NTC Thermistor Cold Detect NTC Thermistor Upper and Lower Thresholds MIN TYP MAX UNIT 100 200 µA 400 450 500 12 mA 91 102 110 µA V Innovative PowerTM - 18 - Active-Semi Authorized Recipients and Customers ActivePMUTM and ActivePathTM are trademarks of Active-Semi. Copyright 2013 Active-Semi, Inc. ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS CONT’D VCHGIN = 5.0V, TA = 25°C, unless otherwise specified. PARAMETER TEST CONDITIONS CHARGER ISET Pin Voltage Fast Charge Precondition Charge Termination Voltage VTERM

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ACT8935

Advanced PMU for SiRF PrimaTM and Atlas IVTM
• Optimized for SiRF PrimaTM/Atlas IVTM Processors
• Three Step-Down DC/DC Converters
• Four Low-Dropout Linear Regulators
• Integrated ActivePathTM Charger
• I2CTM Serial Interface
• Advanced Enable/Disable Sequencing Controller
• Minimal External Components
• Tiny 5x5mm TQFN55-40 Package
− 0.75mm Package Height − Pb-Free and RoHS Compliant

The ACT8935 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the SiRF PrimaTM and Atlas IVTM processors.

This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators, along with a complete battery charging solution featuring the advanced ActivePathTM system-power selection function.

The three DC/DC converters utilize a highefficiency, fixed-frequency 2MHz , current-mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up to 900mA of output current, while the third supports up to 700mA. All four lowdropout linear regulators are high-performance, low-noise regulators that each supply up to 150mA.

The ACT8935 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package.

TYPICAL APPLICATION DIAGRAM

Innovative PowerTM

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

I2CTM is a trademark of NXP. SiRF PrimaTM and Atlas IVTM are trademarks of SiRF Technology, Inc.

Copyright 2013 Active-Semi, Inc.

TABLE OF CONTENTS

General Information 01

Functional Block 03
Ordering 04

Pin Configuration 04

Pin 05

Absolute Maximum Ratings 07 I2C Interface Electrical Characteristics 08

Global Register Map 09

Register and Bit Descriptions 10

System Control Electrical 15

Step-Down DC/DC Electrical Characteristics 16

Low-Noise LDO Electrical 17 ActivePathTM Charger Electrical 18

Typical Performance 20

Application Information 27 Interfacing with the SiRF PrimaTM/Atlas IVTM 27 Control Signals 28 Push-Button 29 Control 29

Functional Description 33 I2C Interface 33 Voltage Monitor and 33 Thermal Shutdown 34

Step-Down DC/DC Regulators 35 General 35 100% Duty Cycle 35 Synchronous 35 Soft-Start 35 Compensation 35 Configuration 35 OK[ ] and Output Fault 36 PCB Layout Considerations 36

Low-Noise, Low-Dropout Linear 37 General 37 Output Current Limit 37 Compensation 37 Configuration 37 OK[ ] and Output Fault 37 PCB Layout Considerations 37

TQFN55-40 Package Outline and Dimensions 45

Innovative PowerTM

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

Copyright 2013 Active-Semi, Inc.

FUNCTIONAL BLOCK DIAGRAM

Optional

AC Adaptor USB
4.35V to 6V CHGIN ACIN

VSYS nSTAT

BODY SWITCH

ActivePath Control

CHGLEV

ISET OUT2
nRSTO

PBIN PUSH BUTTON

OUT2 nPBSTAT

OUT2 nIRQ

PWRHLD

PWREN EXTON

LBI OUT2
nLBO
1.2V

REFBP

Reference

ACT8935

VSYS System Supply
ORDERING INFORMATION

PART NUMBER VOUT1 ACT8935QJ10D-T 1.8V ACT8935QJ1E2-T 2.5V

VOUT2 3.3V 3.3V

VOUT3 VOUT4 VOUT5 VOUT6 VOUT7 PACKAGE PINS

TEMPERATURE RANGE
1.2V 1.2V 1.2V 2.5V 3.3V TQFN55-40 -40°C to +85°C
1.2V 1.2V 1.2V 2.5V 3.3V TQFN55-40 -40°C to +85°C

All Active-Semi components are RoHS Compliant and with Pb-free plating unless otherwise specified. Standard product options are listed in this table. Contact factory for custom options. Minimum order quantity is 12,000 units.

ACT8935QJ_ _-T

Active-Semi Product Number

Package Code Pin Count Option Code Tape and Reel

PIN CONFIGURATION

TOP VIEW

NC VP1 SW1 GP12 SW2 VP2 OUT2 CHGIN VSYS

ACTIVE AA33

DATE CODE
nRSTO nIRQ
nPBSTAT GP3 SW3 VP3

OUT3 PWREN
nLBO LBI

Thin - QFN TQFN55-40

Innovative PowerTM

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

Copyright 2013 Active-Semi, Inc.

PIN DESCRIPTIONS

PIN NAME

REFBP

Reference Bypass. Connect a 0.047uF ceramic capacitor from REFBP to GA. This pin is discharged to GA in shutdown.

OUT1 Output Feedback Sense for REG1.

Analog Ground. Connect GA directly to a quiet ground node. Connect GA, GP12 and GP3 together at a single point as close to the IC as possible.

OUT4

REG4 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT4 to GA. The output is discharged to GA with resistor when disabled.

OUT5

REG5 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT5 to GA. The output is discharged to GA with resistor when disabled.

Power Input for REG4, REG5, REG6, and REG7. Bypass to GA with a high quality ceramic capacitor placed as close to the IC as possible.

OUT7

REG7 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT7 to GA. The output is discharged to GA with resistor when disabled.

OUT6

REG6 output. Capable of delivering up to 150mA of output current. Connect a 1.5µF ceramic capacitor from OUT6 to GA. The output is discharged to GA with resistor when disabled.

Master Enable Input. Drive PBIN to VSYS through a resistor to enable the IC, drive PBIN
VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section. 2 IMAX Maximum Output Current.

Innovative PowerTM
- 16 -

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

Copyright 2013 Active-Semi, Inc.

LOW-NOISE LDO ELECTRICAL CHARACTERISTICS

VINL = 3.6V, COUT4 = COUT5 = COUT6 = COUT7 = 1.5µF, TA = 25°C, LOWIQ[-] = [0], unless otherwise specified.

PARAMETER Operating Voltage Range

TEST CONDITIONS

MIN TYP MAX UNIT

Output Voltage Accuracy

Line Regulation Load Regulation Power Supply Rejection Ratio Supply Current per Output

VOUT 1.2V, TA = 25°C, IOUT = 10mA VOUT < 1.2V, TA = 25°C, IOUT = 10mA VINL = Max VOUT + 0.5V, 3.6V to 5.5V LOWIQ[ ] = [0]

VINL = Max VOUT + 0.5V, 3.6V to 5.5V LOWIQ[ ] = [1] IOUT = 1mA to IMAX f = 1kHz, IOUT = 20mA, VOUT = 1.2V f = 10kHz, IOUT = 20mA, VOUT = 1.2V Regulator Enabled, LOWIQ[ ] = [0]

Regulator Enabled, LOWIQ[ ] = [1]

VNOM

VNOM
mV/V
75 dB

Soft-Start Period Power Good Threshold Power Good Hysteresis

Output Noise

Discharge Resistance REG4

Regulator Disabled VOUT = 2.9V VOUT Rising VOUT Falling IOUT = 20mA, f = 10Hz to 100kHz, VOUT = 1.2V LDO Disabled, DIS[ ] = 1
%VNOM
%VNOM
µVRMS

Dropout Voltage Maximum Output Current Limit Stable COUT4 Range REG5

IOUT = 80mA, VOUT > 3.1V VOUT = 95% of regulation voltage

Dropout Voltage Maximum Output Current

IOUT = 80mA, VOUT > 3.1V
140 280

Current Limit Stable COUT5 Range REG6

VOUT = 95% of regulation voltage

Dropout Voltage Maximum Output Current

IOUT = 80mA, VOUT > 3.1V

Current Limit Stable COUT6 Range REG7

VOUT = 95% of regulation voltage

Dropout Voltage

IOUT = 80mA, VOUT > 3.1V
140 280
VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section.
2 IMAX Maximum Output Current.
3 Dropout Voltage is defined as the differential voltage between input and output when the output voltage drops 100mV below the regulation voltage for 3.1V output voltage or higher .

LDO current limit is defined as the output current at which the output voltage drops to 95% of the respective regulation voltage. Under heavy overload conditions the output current limit folds back by 30% typ

Innovative PowerTM
- 17 -

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

Copyright 2013 Active-Semi, Inc.

ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS

VCHGIN = 5.0V, TA = 25°C, unless otherwise specified.

PARAMETER ActivePath CHGIN Operating Voltage Range CHGIN UVLO Threshold CHGIN UVLO Hysteresis CHGIN OVP Threshold CHGIN OVP Hysteresis

CHGIN Supply Current

CHGIN to VSYS On-Resistance

CHGIN to VSYS Current Limit

VSYS REGULATION VSYS Regulated Voltage nSTAT OUTPUT nSTAT Sink current nSTAT Leakage Current ACIN AND CHGLEV INPUTS CHGLEV Logic High Input Voltage CHGLEV Logic Low Input Voltage CHGLEV Leakage Current ACIN Voltage Thresholds ACIN Hysteresis Voltage ACIN Leakage Current TH INPUT TH Pull-Up Current VTH Upper Temperature Voltage Threshold VTHH VTH Lower Temperature Voltage Threshold VTHL VTH Hysteresis

TEST CONDITIONS

CHGIN Voltage Rising CHGIN Voltage Falling CHGIN Voltage Rising CHGIN Voltage Falling VCHGIN < VUVLO VCHGIN < VBAT + 50mV, VCHGIN > VUVLO VCHGIN > VBAT + 150mV, VCHGIN > VUVLO Charger disabled, IVSYS = 0mA IVSYS = 100mA ACIN = VSYS ACIN = GA, CHGLEV = GA ACIN = GA, CHGLEV = VSYS

IVSYS = 10mA

VnSTAT = 2V VnSTAT = 4.2V

VCHGLEV = 4.2V ACIN voltage rising ACIN voltage falling VACIN = 4.2V

VCHGIN > VBAT + 100mV, Hysteresis = 50mV Hot Detect NTC Thermistor

Cold Detect NTC Thermistor Upper and Lower Thresholds

MIN TYP MAX UNIT
100 200 µA
400 450 500
12 mA
91 102 110 µA V

Innovative PowerTM
- 18 -

Active-Semi Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

Copyright 2013 Active-Semi, Inc.

ActivePathTM CHARGER ELECTRICAL CHARACTERISTICS CONT’D

VCHGIN = 5.0V, TA = 25°C, unless otherwise specified.

PARAMETER

TEST CONDITIONS

CHARGER

ISET Pin Voltage

Fast Charge Precondition

Charge Termination Voltage VTERM

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Datasheet ID: ACT8935QJ10D-T 522736