MAX8601ETD+ ,Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge TimerApplications-40°C to 14 TDFN-EP* 3mm xMAX8601ETD+ AACCell Phones Portable Media Players+85°C 3mm (T ..
MAX8601ETD+T ,Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge TimerELECTRICAL CHARACTERISTICS(V = V = 5V, V = 4V, V = 0V, R = 2kΩ, C = 0.068µF, T = -40°C to +85°C, un ..
MAX8606ETD+ ,USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50m Ohm Battery Switch in TDFNFeaturesThe MAX8606 complete 1-cell Li+ battery charge-man- ♦ Small 3mm x 3mm Thermally Enhanced TD ..
MAX8606ETD+T ,USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50m Ohm Battery Switch in TDFNELECTRICAL CHARACTERISTICS(V = 5.0V, V = 3.3V, EN1 = EN2 = GND, R = 23.58kΩ, C = 0.1µF, C = 4.7µF, ..
MAX8607ETD+ ,1MHz PWM Boost Converter for 1.5A White LED Camera FlashApplicationsCamera Flashes/StrobesOrdering InformationCell Phones/SmartphonesPART* PIN-PACKAGE TOP ..
MAX860CSA+ ,50mA, Frequency-Selectable, Switched-Capacitor Voltage ConvertersApplications†MAX860MJA -55°C to +125°C 8 CERDIPPortable ComputersMAX861ISA -25°C to +85°C 8 SOMedic ..
MB84256A-10LLP , CMOS 256K-BIT LOW POWER SRAM
MB84256A-10LPF , CMOS 256K-BIT LOW POWER SRAM
MB84VD21183EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD21194EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD22181FM-70PBS , 32M (X16) FLASH MEMORY & 4M (X16) STATIC RAM
MB84VD22182EE-90 ,32M (x 8/x16) FLASH MEMORY & 4M (x 8/x16) STATIC RAMFUJITSU SEMICONDUCTORDS05-50204-2EDATA SHEETStacked MCP (Multi-Chip Package) FLASH MEMORY & SRAMCMO ..
MAX8601ETD+-MAX8601ETD+T
Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer
General DescriptionThe MAX8600/MAX8601 single-/dual-input linear bat-
tery chargers safely charge single-cell Li+ batteries.
The charging rate is optimized to accommodate the
thermal characteristics of a given application. There is
no need to reduce the maximum charge current or
worst-case charger power dissipation. Charging is opti-
mized for Li+ cells using a control algorithm that
includes low-battery precharging, voltage and current-
limited fast-charging, and top-off charging, while con-
tinuously monitoring the battery for overvoltage,
over/undertemperature, and charging time. The charg-
er timeout protection is programmable. The charger
status is indicated by three open-drain outputs.
The MAX8601 automatically selects between either a
USB or AC adapter input source. The AC adapter
charge current is programmable, while USB charge
current is set not to exceed either 100mA or 500mA,
depending on the USEL input. The MAX8600 is a sin-
gle-input charger with no USB source input.
The MAX8600/MAX8601 are available in a 3mm x 3mm
power-enhanced TDFN package.
ApplicationsCell PhonesPortable Media Players
Digital CamerasMP3 Players
PDAsWireless Appliances
FeaturesSingle- (MAX8600) or Dual- (MAX8601) Input Li+
ChargerUp to 1A Programmable Fast-Charge100mA/500mA USB Select Input (MAX8601)±5% Fast-Charge Current-Limit Accuracy14V Input Overvoltage ProtectionProgrammable On-Chip Charge TimersBattery Thermistor InputCharger-Status OutputsThermally Optimized Charge Rate14-Pin, 3mm x 3mm TDFN Package
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer19-3565; Rev 3; 12/08
EVALUATION KIT
AVAILABLE
Ordering Information
PARTTEMP
RANGEPIN-PACKAGETOP
MARK
MAX8600ETD+-40°C to
+85°C
14 TDFN-EP* 3mm x
3mm (T1433-2)ABB
MAX8601ETD+-40°C to
+85°C
14 TDFN-EP* 3mm x
3mm (T1433-2)AAC
Pin Configurations continued at end of data sheet.
BAT
Li+
THM
ADAPTER
USB
PORT
GND
USBOFF
FLT
VLOGIC
CHARGE
STATUS
SETI
USEL
POK
CHG
MAX8601
500mA
100mA
Typical Operating CircuitMAX8600
TDFNTOP VIEW
SETI
BAT
THM
GND
N.C.
N.C.
FLT
CHG
POK
N.C.
Pin Configurations*EP = Exposed pad.
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer
ABSOLUTE MAXIMUM RATINGSStresses 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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC, USB to GND....................................................-0.3V to +16V
BAT, CT, CHG, EN, FLT, SETI,
POK, THM, USEL to GND..................................-0.3V to +6.0V
Continuous Power Dissipation (TA= +70°C)
14-Pin TDFN 3mm x 3mm Multilayer PCB
(derate 24.4mW/°Cabove +70°C)........................1951.2mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS(VDC= VUSB= 5V, VBAT= 4V, VEN= 0V, RSETI= 2kΩ, CCT= 0.068µF, TA= -40°C to +85°C, unless otherwise noted. Typical values
are at TA= +25°C. Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITS
DC OR USB (Note 2)Input Voltage Range014V
Input Operating Range(Note 3)4.157.00V
Input Undervoltage ThresholdInput rising, 500mV hysteresis (typ)3.854.04.15V
Input Overvoltage ThresholdInput rising, 200mV hysteresis (typ)7.27.57.8V
Input Overvoltage DelayFrom overvoltage event to charger disabled0.25s
Input Supply CurrentIBAT = 0mA, RTHM = 10kΩ7501200µA
Shutdown Input CurrentVEN = 5V, TA = +25°C275435µA
Input to BAT On-ResistanceInput = 3.7V, VBAT = 3.6V0.50.8Ω
Input to BAT Dropout VoltageInput falling, 200mV hysteresis (typ)555120mV
BATTA = +25°C4.1794.24.221BAT Regulation VoltageIBAT = 0mATA = -40°C to +85°C4.1664.24.234V
BAT Restart Fast-Charge
ThresholdFrom BAT regulation voltage-180-150-120mV
RSETI = 1.5kΩ95010001050
RSETI = 2kΩ727750773
RSETI = 5kΩ280300320DC Charging CurrentVUSB = 0V
Prequal, RSETI = 2kΩ, VBAT = 2.5V607590
VUSEL = 5V450475500
VUSEL = 0V8095100USB Charging CurrentVDC = 0V
Prequal, RSETI = 2kΩ, VBAT = 2.5V607590
Soft-Start TimeRamp time to fast-charge current1.2ms
BAT Prequal ThresholdVBAT rising, 180mV hysteresis (typ)2.93.03.1V
BAT Leakage CurrentVDC = VUSB = 0V, VBAT = 4.2V0.0015µA
SETIRSETI Resistance RangeGuaranteed by charging current1.55.0kΩ
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer
ELECTRICAL CHARACTERISTICS (continued)(VDC= VUSB= 5V, VBAT= 4V, VEN= 0V, RSETI= 2kΩ, CCT= 0.068µF, TA= -40°C to +85°C, unless otherwise noted. Typical values
are at TA= +25°C. Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITSEN, USEL
Rising1.6Logic Input ThresholdsFalling0.4V
TA = +25°C0.0011Logic Input Leakage CurrentV EN = VUSEL = 0 to 5.5VTA = +85°C0.01µA
POK, CHG, FLT
Logic Output Voltage, LowI POK, = I CHG = I FLT = 1mA12100mV
TA = +25°C0.0011Logic Output Leakage
Current, HighPOK = V CHG = V FLT = 5.5V,
VDC = VUSB = 0VTA = +85°C0.01µA
CHG
RSETI = 1.5kΩ75
RSETI = 2kΩ37.556.2575.0CHG/Top-Off ThresholdIBAT falling, battery is
charged
RSETI = 5kΩ22.5
THMTHM Pullup Resistance10kΩ
THM Resistance, HotRTHM falling, 420Ω hysteresis (typ)3.723.944.13kΩ
THM Resistance, ColdRTHM rising, 2.7kΩ hysteresis (typ)26.728.329.7kΩ
THM Resistance, DisabledRTHM falling, 230Ω hysteresis (typ)274309337Ω
Timer AccuracyCCT = 0.068µF-20+20%
Prequal Time LimitFrom entering prequal to FLT low, VBAT < 3V34.8min
Charge Time LimitFrom entering fast-charge to FLT low, 3V < VBAT < 4.2V334min
Top-Off Time LimitFrom CHG high to charger disabled34.8min
THERMAL LOOPThermal-Limit TemperatureJuncti on tem p er atur e w hen the char g e cur r ent i s r ed uced ,
TJ r i si ng +100°C
Thermal-Limit GainReduction of IBAT for increase of TJ, from VDC, RSETI = 1.5kΩ5%/°C
Note 1:Limits are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by design
and characterization.
Note 2:Input refers to either DC or USB.
Note 3:Guaranteed by undervoltage- and overvoltage-threshold testing. For complete charging, the input voltage must be greater
than 4.32V.
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer
Typical Operating Characteristics(VDC= 5V, RSETI= 2kΩ, VBAT= 3.6V, MAX8601 evaluation kit with thermal resistance of 50°C/W. TA= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. INPUT VOLTAGE
MAX8600/01 toc01
INPUT VOLTAGE (V)
SUPPLY CURRENT (
VEN = 0V
DISABLED SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX8600/01 toc02
INPUT VOLTAGE (V)
SUPPLY CURRENT (
VEN = 5V
CHARGE CURRENT
vs. BATTERY VOLTAGE
MAX8600/01 toc03
VBAT (V)
CHARGE CURRENT (mA)
DASHED DATA TAKEN
WITH PULSE TESTING TO
AVOID THERMAL LIMIT
RSETI = 1.5kΩ
RSETI = 2kΩ
RSETI = 3kΩ
CHARGE CURRENT
vs. DC VOLTAGE
MAX8600/01 toc04
VDC (V)
CHARGE CURRENT (mA)
RSETI = 1.5kΩ
RSETI = 2kΩ
RSETI = 3kΩ
DASHED DATA
TAKEN WITH PULSE
TESTING TO AVOID
THERMAL LIMIT0
CHARGE CURRENT vs. USB VOLTAGE
MAX8600/01 toc05
VUSB (V)
CHARGE CURRENT (mA)VUSEL = 0V
VUSEL = 5V
DASHED DATA TAKEN WITH
PULSE TESTING TO AVOID THERMAL LIMIT
CHARGE CURRENT vs. INPUT
VOLTAGE HEADROOM
MAX8600/01 toc06
(VIN - VBAT) (V)
CHARGE CURRENT (mA)
BATTERY REGULATION
VOLTAGE vs. AMBIENT TEMPERATURE
MAX8600/01 toc07
TA (°C)
BATTERY REGULATION VOLTAGE (V)
CHARGE CURRENT vs. AMBIENT
TEMPERATURE (750mA CHARGE)
MAX8600/01 toc08
TA (°C)
CHARGE CURRENT (mA)
VBAT = 4V
VBAT = 3.6V
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer
PIN
MAX8600MAX8601NAMEFUNCTION1, 7BAT
Battery Connection. The IC delivers charging current and monitors battery voltage using BAT.
Bypass BAT to GND with a 2.2µF or larger ceramic capacitor. Connect both BAT inputs
together externally (MAX8601). BAT is high impedance when the IC is disabled.2SETI
DC Charge-Current Programming Input. Connect a resistor from SETI to GND to set the
maximum charging current when using the DC input, the prequal current from either input,
and the CHG turn-off threshold.3THM
Thermistor Input. Connect a 10kΩ NTC thermistor, in close proximity to the battery, from THM
to ground to monitor the battery temperature. Connect THM to GND to disable the thermistor
functionality. The IC suspends charging when RTHM is outside the hot and cold limits.4GNDGroundCTTiming Capacitor Input. Connect a capacitor from CT to GND to set the precharge timeout,
top-off time, and fast-charge timeout. Connect CT to GND to disable the timers.
6, 7, 9—N.C.No Connection. Make no external circuit connection.ENActive-Low Enable Input. Drive low or connect EN to GND to enable the charger. Drive EN
high to disable the charger.10POKPower-OK Monitor. POK is an open-drain output that pulls low when a valid charging source is
detected at either DC or USB (MAX8601). POK is high impedance when EN is high.11CHG
Charging-Status Output. CHG goes low when the battery is above 3V and being charged with
a current greater than 7.5% of the current programmed with RSETI. CHG is high impedance
when the charger is in prequal, top-off, or disabled.
Pin Description
Typical Operating Characteristics (continued)(VDC= 5V, RSETI= 2kΩ, VBAT= 3.6V, MAX8601 evaluation kit with thermal resistance of 50°C/W. TA= +25°C, unless otherwise noted.)
CHARGE CURRENT vs. AMBIENT
TEMPERATURE (1A CHARGE)
MAX8600/01 toc09
TA (°C)
CHARGE CURRENT (mA)
VBAT = 4V
VBAT = 3.6V
RSETI = 1.5kΩ
FAST-CHARGE TIME vs. CCT
MAX8600/01 toc10
CCT (μF)
FAST-CHARGE TIME (MIN)
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge Timer
PIN
MAX8600MAX8601NAMEFUNCTION12, 1312, 13DC
DC Input Supply. Connect DC to a 4.5V to 7V charging source. Bypass DC to GND with a 1µF
or larger capacitor. DC takes priority over USB when both are present (MAX8601). Both DC
inputs should be connected together externally.14FLT
Fault Status Output. FLT goes low when either the prequal timer or the fast-charge timers
expire and the battery voltage is not above the required threshold. Clear the fault by raising
EN or removing input power.9USBUSB Input Source. Connect to a USB port. Bypass USB to GND with a 1µF or larger capacitor.6USELUSB Charge-Select Input. Logic input that determines the maximum charge current drawn
from the USB input. IBAT = 95mA when USEL = low, and IBAT = 475mA when USEL = high.—EPExposed Pad. Connect to the GND plane for optimum thermal dissipation.
Pin Description (continued)
ANY STATE
FAULTCHG = HIGH
FLT = LOW
VBAT > 3V
SET TIMER = 0s
RTHM > 3.97kΩ AND
RTHM < 28.7kΩ
RTHM > 3.97kΩ AND
RTHM < 28.7kΩ
RTHM < 3.97kΩ OR
RTHM > 28.7kΩ
RTHM < 3.97kΩ OR
RTHM > 28.7kΩ
IBAT < 112.5 / RSETI
AND VOLTAGE MODE
SET TIMER = 0s
VIN < 4.1V OR
VIN < 7.5V OR
VIN < VBAT OR
EN HIGH
VBAT < 3V AND
PREQUAL
TIMEOUT
IBAT > 112.5 / RSETI
AND FAST-CHARGE
TIMEOUT
TOP-OFF
TIMEOUT
OFFPOK = HIGH, CHG = HIGH, FLT = HIGH
IBAT = 0A
EN LOW AND
POWER-GOOD
SET TIMER = 0s
PREQUALPOK = LOW, CHG = HIGH
IBAT = 150 / RSETI
DONEPOK = LOW, CHG = HIGH
IBAT = 0A
TOP-OFFPOK = LOW, CHG = HIGH
FAST-CHARGEPOK = LOW, CHG = LOW
IBAT(DC) = 1500 / RISET
IBAT(USB) = 100mA / 500mA
THM OUT OF RANGEPOK = PREVIOUS STATE
CHG = PREVIOUS STATE
IBAT = 0A
PREQUAL TIMER HELD
THM OUT OF RANGEPOK = PREVIOUS STATE
CHG = PREVIOUS STATE
IBAT = 0A
FAST-CHARGE TIMER HELD
IBAT < 172.5/RSETI
AND VOLTAGE MODE
SET TIMER = 0s
VBAT < 2.82V
SET TIMER = 0s
VBAT < 4.05V
SET TIMER = 0s
Figure 1. Charger State Diagram
Detailed Description
DC ChargingThe MAX8600/MAX8601 are designed to charge a sin-
gle-cell Li+ battery from a DC source voltage between
4.15V and 7V. The precharge current, charge current,
and top-off threshold are programmable with RSETI.
USB Charging (MAX8601)The MAX8601 contains a USB input that allows opera-
tion from either a DC source or a USB port. A USEL input
allows the user to select either a 100mA or 500mA maxi-
mum charging current when using the USB input. If both
VUSBand VDCare valid, the MAX8601 operates from
DC. If VDCis invalid (undervoltage/overvoltage), the
MAX8601 operates from USB. When charging at 100mA
from the USB input, the fast-charge timer is inhibited.
Charger-Enable Inputis a logic input (active low) that enables the charger.
Drive ENhigh to disable the charger-control circuitry.
Drive ENlow or connect to GND for normal operation.
Soft-StartTo prevent input transients, the rate of change of
charging current is limited. When the charger is turned
on or when the input source is changed, charge current
is ramped from 0 to the set current value in typically
1.2ms. This also means that if charging is taking place
from USB, and the DC input is then powered, charge
current falls to zero and then is reramped to the DC
charge rate. This is done to ensure that the DC source
is not subjected to a severe load current step.
Charge-current ramp up is also limited when transition-
ing from prequal to fast-charge, and when changing
the USB charge current from 100mA to 500mA with
USEL. There is no di/dt limiting, however, if ISETis
changed suddenly using a switch at RSETI.
Thermal-Limit ControlThe MAX8600/MAX8601 feature a thermal limit that
reduces the charge current when the die temperature
exceeds +100°C. As the temperature increases above
+100°C, the IC lowers the charge current by 5%/°C.
CHGCharge-Indicator OutputCHGis an open-drain output that indicates charger sta-
tus. CHGgoes low during charge cycles where VBATis
greater than 3V and IBATis greater than 7.5% of the
maximum charge current set by RSETI. When the
MAX8600/MAX8601 are used in conjunction with a
microprocessor (µP), connect a pullup resistor between
CHGand the logic I/O voltage to indicate charge status
to the µP. Alternatively, CHGcan sink up to 20mA for
an LED charge indicator.
Fault Indicator (FLT)The MAX8600/MAX8601 contain an open-drain FLT
output to signal the user when a fault occurs. FLTgoes
low if the charger is in prequal and the prequal timer
expires, or if the charger is in fast-charge and the fast-
charge time expires. FLTdoes NOT go low if the THM
thermistor temperature is out of range. Toggle ENor
the input power to reset the FLTindicator.
Power-OK Indicator (POK)The MAX8600/MAX8601 contain an open-drain POKout-
put that goes low when a valid input source is detected
at DC or USB (MAX8601 only). A valid input source is
one whose voltage is between 4.15V and 7V and
exceeds the battery voltage by 320mV. After a valid
input has been established, charging is sustained with
inputs as low as 3.5V as long as the input voltage
remains above the battery voltage by at least 55mV (typ).
POKis high impedance when the charger is disabled.
Applications InformationFigure 2 shows the typical operating circuit for the
MAX8601. The following section describes component
changes for different charging current and timer durations.
MAX8600/MAX8601
Single-/Dual-Input 1-Cell Li+ Chargers with
OVP Protection and Programmable Charge TimerBAT
NTC
10kΩ AT
+25°C
RSETI
2kΩ
THM
AC ADAPTER
4.5V TO 7V
(OVP TO 16V)
USB PORT
4.5V TO 5.5V
GND
USBOFF
FLT
TO LOGIC
SUPPLY
(3.3V)
100kΩ100kΩ330Ω
FAULT
POWER-OK
CCT
0.068μF
1μF
SETI
USEL
POK
CHG
MAX8601
500mA
100mA
2.2μF
Figure 2. Typical Operating Circuit for USB/AC-Adapter Input
Charger. An RSETI of 2kΩsets an AC adapter fast-charge of
750mA.
