SW606
SW606Datasheet Total Solution for Power Bank
Version0.1
2015-12-25珠海智融科技有限公司
ZHUHAI ISMARTWARE TECHNOLOGY CO.,LTD.
联系人：杨先生 136********联系人：杨先生 136********
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Table of Content
1.General Description (4)
2.Applications (4)
3.Features (4)
4.Functional Block Diagram (5)
5.Pin Configuration and Function (6)
5.1Pin Configuration (6)
5.2Pin Descriptions (6)
6.Absolute Maximum Ratings (7)
7.Recommended Operating Conditions (7)
8.Electrical Characteristics (8)
9.Functional Description (11)
9.1Charge Mode (11)
9.2Boost Mode (12)
9.3BC1.2 (12)
9.4Power Path (13)
9.5Fuel Gauge (13)
9.6WLED (15)
9.7KEY (15)
9.8SWB (16)
10.Typical Application Circuits (18)
11.Register List (19)
11.1REG00:Mode Configure (19)
11.2REG03:Power set and IRQ indication (19)
11.3REG04:Charger set and gauge indication (19)
11.4REG11:Boost voltage set (20)
12.Mechanical and Packaging (21)
12.1Package Summary (21)
12.2Package Outline and Dimensions (21)
1.General Description
The SW606is a highly integrated power management IC(PMIC),providing a one-chip power bank solution.The SW606integrates2.5A switch charger,2.4A synchronous boost,battery fuel gauge and power controller.With simple external component,The SW606provides a complete solution for power bank.
2.Applications
?Power Bank
?Mobile phone and Pads
3.Features
?Switch Charger
Current up to2.5A,Efficiency up to90%
Support4.2/4.24/4.35/4.4Battery Voltage
Thermal Regulation
?Synchronous Boost
Current up to2.4A,Efficiency up to95%
Support Wire Drop Compensation
Load Insert Detect and Auto Turn on
Light Load Detect and Auto Turn off
?BC1.2
Support BC1.2DCP
Support Apple&Samsung Device
?Smart Power Path
Support Charging and Loading Meanwhile
Dynamic Input Power Regulation
?Fuel Gauge
Auto Detect LED Number
Support3~5LED Number
?Key
Support Push Key and Touch Key
Auto Detect Key Type
?Constant Current Sink for Flash Light
?Protection
Input Over Voltage Protection
Output Short Protection
Charger Over Time Protection
Over Temperature Protection
?Single Wire Bus(Rate<10kbps)
?ESOP-16Package
4.Functional Block Diagram
5.Pin Configuration and Function
5.1Pin Configuration
5.2Pin Descriptions
Pin Name Function Description
1LED3Led3for battery fuel indicator.
2LED4Led4for battery fuel indicator.
3VIN Adapter input.
4VOUT Boost output or Type-C power input.
5SW Switch node,connect to output inductor.
6WLED Constant current sink for flash light.
7SWB Open drain input-output,Single wire bus.
8BAT Battery charge current sense negative input,and battery voltage sense input.
9BATCSP Battery charge current sense positive input. 10KEY Push key and touch key input.
11DPA USB DP of group A.
Pin Descriptions(continued)
Pin Name Function Description
12DMA USB DM of group A.
13DPC USB DP of group C.
14DMC USB DM of group C.
15LED1Led1for battery fuel indicator.
16LED2Led2for battery fuel indicator.
EPAD Exposed pad.
6.Absolute Maximum Ratings
Over operating free-air temperature range(unless otherwise specified)
Parameters Symbol MIN MAX UNIT
Input Voltage VIN-0.312V
Battery Voltage BAT-0.3 5.5V
SW Voltage SW-0.312V
GND Voltage AGND-0.30.3V
Other Pin Voltage-0.3 5.5V
Junction Temperature-40+150°C
Operating Temperature-40+85°C
Storage Temperature Range-65+150°C
【Notice】Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device.These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied.Exposure to absolute-maximum-rated conditions for extended periods my affect device reliability.
7.Recommended Operating Conditions
Parameters Symbol MIN Typical MAX UNIT
Input Voltage VIN 4.5 5.5V
Battery Voltage BAT 2.8 4.5V Operating Temperature-40+85°C
8.Electrical Characteristics
（V IN=5V,V BAT=3.7V,T A=25°C,unless otherwise specified）
Parameters Symbol Test Conditions MIN TYP MAX UNIT Power Supply
VIN Input Voltage V IN4 5.5V VIN Input UVLO Threshold V IN_UVLO VIN Input Voltage Falling4V VIN Input UVLO Hysteresis V IN_UVLO_HYS VIN Input Voltage Rising400mV VIN Over Voltage Threshold V IN_OVP VIN Over Voltage Rising 6.5V VIN Over Voltage Hysteresis V IN_OVP_HYS VIN Over Voltage Falling1V VIN Voltage Limit V IN_LIM 4.4V VIN Current Limit I IN_LIM3A VOUT Voltage Limit V OUT_LIM 4.6V Charge Mode
Trickle Charge Voltage V TC R CS=10mΩ3V Trickle Charge Current I TC R CS=10mΩ10% Constant Current Charge Current I CC R CS=10mΩ,Reg04[7:6]=01 2.5A Termination Charge Current I END R CS=10mΩ10% Target Charge Voltage V BAT_FULL Reg03[5:4]=11 4.2V Recharge Threshold V BAT_RECH Reg03[5:4]=11 4.1V Switching Frequency F CHG2MHz Trickle Charge Over Time t TC_OT40Min Constant Charge Over Time t CC_OT12Hour Thermal Regulation Threshold T REGU_CHG104℃
Electrical Characteristics(continued)
（V IN=5V,V BAT=3.7V,T A=25°C,unless otherwise specified）
Parameters Symbol Test Conditions MIN TYP MAX UNIT Boost Mode
VBAT Input Voltage V BAT 2.8 4.5V VBAT Input UVLO Threshold V BAT_UVLO VBAT Input Voltage Falling 2.8V VBAT Input UVLO Hysteresis V BAT_UVLO_HYS VBAT Input Voltage Rising300mV VOUT Output Voltage V OUT Reg11[2:0]=111 5.1V Output Current I OUT V BAT=3.7V 2.4A Light Load Current I LIGHT_LOAD Turn Off Boost,Reg03[7:6]=1120mA Light Load Time t LIGHT_LOAD30S Quiescent Current I Q V BAT=3.7V,Boost Off50uA Switching Frequency F BST1MHz
Wire Drop Compensation V OUT_WDC 0A
Thermal Regulation Threshold T REGU_BST104℃BC1.2
DP/DM Voltage DP in Apple2.4A/2.1A Mode
DM in Apple2.4A/1.0A Mode
2.7V
DP in Apple1.0A Mode
DM in Apple2.1A Mode
2.0V
LED
LED Source Current I LED4mA LED Flicker Frequency f LED1Hz WLED
WLED Sink Current I WLED30mA KEY
Short Key Time T SHORT32mS Long Key Time T LONG2S SWB
Rate f SWB10KBit/S
Electrical Characteristics(continued)
（V IN=5V,V BAT=3.7V,T A=25°C,unless otherwise specified）
Parameters Symbol Test Conditions MIN TYP MAX UNIT Thermal Shutdown
Thermal Shutdown Threshold T SHDT Temperature Rising121℃Thermal Shutdown Hysteresis T SHDT_HYS Temperature Falling37℃
9.Functional Description
9.1Charge Mode
The SW606integrates a switch charger with charge current up to2.5A and efficiency is up to90%.The switch charger supports4.2V/4.24V/4.35V/4.4V battery voltage.Its switch frequency is up to2MHz,so a small size inductor with inductance of1uH can be used.
The switch charger charges battery in three charge phases:trickle charge(TC),constant current charge(CC)and constant voltage charge(CV).When battery voltage is lower than3V,charger enters into trickle charge while the charge current is10%of target current.When battery voltage rises to3V,charge enter into constant current charge while charge current is target current.When battery voltage rise to target charge voltage, charger enter into constant voltage charge while charge current falls so as battery voltage stays to target voltage.When charge current falls to termination charge current,charge cycle completes and charger stops. When battery voltage is lower than recharge threshold,charger automatically restarts.
The switch charger integrates thermal regulation.When die temperature rises to charge thermal threshold, charge current will automatically fall so as die temperature stays to charge thermal threshold.If die temperature still rises to thermal shutdown threshold,Charger will stop.When die temperature falls to thermal shutdown hysteresis,charger will restarts.
The switch charger integrates input voltage regulation prior to supply the external load.When adapter is weak result in charge input voltage falling,charge current will automatically fall so the charge input voltage will stay in voltage limit value.
The switch charger integrates over time protection.When charging remains in trickle charge beyond the trickle charge over time,t TC_OT,or charging remains in constant current charge beyond the constant current charge over time,t CC_OT,Charger will terminate.Charger will restart only when re-inserting the adapter.
9.2Boost Mode
The SW606integrates a synchronous boost with output current up to2.4A and efficiency is up to95%.Its switch frequency is up to1MHz,so a small size inductor with inductance of1uH can be used.
The synchronous boost works in PFM/PWM mode.It works in PFM mode when in light load to rise efficiency, and works in PWM mode in heavy load.It will automatically change in these two mode base on load condition.
The synchronous boost integrates wire drop compensation.It rises output voltage to compensates wire drop when in heavy load.When output current is higher than2A,output voltage will rise125mV.When output current is between1A and2A,output voltage will rise75mV.When output current is lower than1A,output voltage will stay in target voltage.
The synchronous boost can detects load.When load inserts,boost will automatically turn on to supply the load.
The synchronous boost can detects light load.When light load is detected,boost will automatically turn off to reduce battery supply.
The synchronous boost integrates thermal regulation.When die temperature rises to boost thermal threshold, boost output voltage will automatically fall so as die temperature stays to boost thermal threshold.If die temperature still rises to thermal shutdown threshold,boost will stop.When die temperature falls to thermal shutdown hysteresis,boost will not automatically restart but only meet start condition such as short key or load detect.
The synchronous boost has discharge function.When boost turns off,a discharge resistor of500Ωwill connect to GND to speed up discharge of output capacitor.The discharge resistor will connect to GND for1S and then disconnect.
The synchronous boost has disconnect function.When boost turns off,input voltage will not connect to output.
The synchronous boost integrates input under voltage,output over voltage and output overload protection.
9.3BC1.2
The SW606integrates two BC1.2controller(BC1.2_A,BC1.2_C),and automatically detects apple,samsung and all android devices.It supports three mode of apple device:
apple2.4A mode:DP=2.7V,DM=2.7V;
apple2.1A mode:DP=2.7V,DM=2.0V;
apple1.0A mode:DP=2.0V,DM=2.7V;
BC1.2_A supports apple2.4A mode and apple1.0A mode,while BC1.2_C supports apple2.4A mode and apple 2.1A mode.
9.4Power Path
The SW606integrates power path and support charging and loading meanwhile.
The power path integrates input voltage regulation.When adapter is weak result in VIN input voltage falling, power path will regulate so the VIN input voltage will stay in voltage limit value to protect the adapter.
The power path integrates input current regulation.When external load is heavy and VIN input current is over 3A,power path will regulate so the VIN input current will stay in3A to protect the adapter.
9.5Fuel Gauge
The SW606integrates fuel gauge.The fuel gauge calculates battery capacity and shows in LEDs.
The fuel gauge supports3/4/5LEDs.It automatically detects LED number and corresponds to show in the right way.
When connecting5LEDs,the LEDs connect way is as below:
When discharging,battery capacity is shown as:
Capacity LED1LED2LED3LED4LED5
80~100%On On On On On
60~80%On On On On Off
40~60%On On On Off Off
20~40%On On Off Off Off
1~20%On Off Off Off Off
0%Flicker Off Off Off Off
When charging,battery capacity is shown as:
Capacity LED1LED2LED3LED4LED5
100%On On On On On
80~99%On On On On Flicker
60~80%On On On Flicker Off 40~60%On On Flicker Off Off 20~40%On Flicker Off Off Off 0~20%Flicker Off Off Off Off
When connecting4LEDs,the LEDs connect way is as below:
When discharging,battery capacity is shown as:
Capacity LED1LED2LED3LED4
75~100%On On On On
50~75%On On On Off
25~50%On On Off Off
1~25%On Off Off Off
0%Flicker Off Off Off
When charging,battery capacity is shown as:
Capacity LED1LED2LED3LED4
100%On On On On
75~99%On On On Flicker
50~75%On On Flicker Off
25~50%On Flicker Off Off
0~25%Flicker Off Off Off
When connecting3LEDs,the LEDs connect way is as below:
When discharging,battery capacity is shown as:
Capacity LED1LED2LED3
66~99%On On On
33~66%On On Off
1~33%On Off Off
0%Flicker Off Off
When charging,battery capacity is shown as:
Capacity LED1LED2LED3
100%On On On
66~99%On On Flicker
33~66%On Flicker Off
0~33%Flicker Off Off
The fuel gauge supports low power indication.When battery is low power,LED1will flicker5times to indicate battery needs to charge,and boost will also not turn on.
9.6WLED
The SW606integrates flash light.WLED pin is connected to flash light,and can sink constant current of30mA, which keeps the light intensity the same.
9.7KEY
The SW606integrates key function.It supports push key and touch key and can automatically detect key type. It supports short key and long key.When short key happens,boost will turn on.When long key happens,flash light will turn on or turn off.
9.8SWB
The SW606integrates single wire bus(SWB).SWB only requires one line to communicate with MCU or OSC, and can read or write registers.SWB supports10KBit/S rate.
Within the32host clock cycles and after read/write command is sent out,if the host can not receive the effective response,the device is regarded as read/write failure and should resend the command.
SWB adopts high byte order for sending data.During the first phase,the7th represents for parity check code. The write command concludes the register address and data written which contains16bits parity check code. The read command concludes the register address which contains8bits parity check code.Similarity, responding to write command in the device and during the first phase,the7th represents for the address received by the device and parity check code of the data,and the8th always be the0.Responding to read command in the device and during the first phase,the7th represents for the parity check code of the received address,and the8th presents for the read data of a total of8bits parity check code results.During the first phase,the9th and the4th in register and data are generated from the logical invert by the one bit before the adjacent.
Write Timing:
Example:Register address is D8h,Write Data is75h
Read Timing:
Example:Register address is D8h,read data is75h
10.Typical Application Circuits
11.Register List
11.1REG00:Mode Configure
Default:0x00H
Bit Description R/W Default 7-5Reserved.//
4BC1.2_C default mode
0:apple2.4A mode;
1:apple2.1A mode;
R/W0
3-0Reserved.//
11.2REG03:Power set and IRQ indication
Default:0xF0H
Bit Description R/W Default
7-6Boost light load current set
0:10mA;
1:30mA;
2:40mA;
3:20mA;
R/W3
5-4Charge Battery voltage set
0:4.4V;
1:4.35V;
2:4.24V;
3:4.2V;
R/W3
3-0Reserved.//
11.3REG04:Charger set and gauge indication
Default:0x00H
Bit Description R/W Default
7-6Charge current set
0:2.0A;
1:2.5A;
2:3.5A;
3:3.0A;
R/W3
5Charger flag
0:discharging;
1:charging;
R-
4-0Battery voltage indication(2.9+x*0.05)V
0:2.9V;
1:2.95V;
.
.
R-
.
31:4.45V;
11.4REG11:Boost voltage set
Default:0x07H
Bit Description R/W Default 7-3Reserved.--
2-0Boost output voltage set
0:5.15V;
1:5.20V;
2:5.25V;
3:5.30V;
4:4.95V;
5:5.00V;
6:5.05V;
7:5.15V;
R/W7