MAX8600AETD+-MAX8600AETD+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX8600AETD+ ,Single-Input 1-Cell Li+ Charger with OVP Protection and Programmable Charge TimerApplicationsMAX8600AETD+ -40°C to +85°C (3mm x 3mm) AEF(T1433-2)Cell Phones Portable Media Players* ..
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MAX8600AETD+-MAX8600AETD+T
Single-Input 1-Cell Li+ Charger with OVP Protection and Programmable Charge Timer
General Description
The MAX8600A single-input linear battery charger safe-
ly charges single-cell Li+ batteries. 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/under temperature, and charging time. Charger
timeout protection is programmable, and the status is
indicated by three open-drain outputs.
The MAX8600A linear charger optimizes charging time
by adjusting the charge rate to accommodate the ther-
mal characteristics of a given application. There is no
need to reduce the maximum charge current to accom-
modate worst-case charger power dissipation.
The MAX8600A is a variation of the MAX8600 with
improved dropout and other spec changes. See
Maxim’s website for an outline of MAX8600/MAX8600A
differences.
The MAX8600A is available in a 3mm x 3mm power-
enhanced TDFN package.
Applications
Cell PhonesPortable Media Players
Digital CamerasMP3 Players
PDAsWireless Appliances
GPS
FeaturesLow Dropout -0.188V at 0.75AUp to 1A Programmable Fast-Charge5% Charge-Current AccuracyLogic-Low Enable Input14V Input Overvoltage ProtectionProgrammable On-Chip Charge TimerBattery Thermistor InputThree Charger-Status OutputsThermally Optimized Charge Rate14-Pin, 3mm x 3mm TDFN Package
MAX8600A
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
19-3205; Rev 1; 1/09
EVALUATION KIT
AVAILABLE
Ordering Information
PARTTEMP RANGEPIN-PACKAGETOP
MARK
MAX8600AETD+-40°C to +85°C
14 TDFN-EP*
(3mm x 3mm)
(T1433-2)
AEF
BAT
THM
OFF
FLT
GND
SETI
POK
CHG
MAX8600A
DC INPUT
4.1V TO 5.9V
LED
LOGIC
SUPPLY
Li+
SAFE DC
Typical Operating Circuit
MAX8600A
TDFN
TOP VIEW
SETI
BAT
THM
GND
N.C.
BAT
FLT
CHG
POK
Pin Configuration
*EP = Exposed pad.
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX8600A
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
ABSOLUTE MAXIMUM RATINGS
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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
POKto GND.................................................-0.3V to (DC + 0.3V)
DC to GND.............................................................-0.3V to +16V
BAT, CT, CHG, EN, FLT, SETI,
THM to GND......................................................-0.3V to +5.5V
Continuous Power Dissipation (TA= +70°C)
14-Pin TDFN 3mm x 3mm Multilayer PCB (derate 24.4mW/°C
above +70°C)......................................................1951.2mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature Range............................-40°C to +150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(VDC= 5V, VBAT= 3.6V, VEN= 0V, RSETI= 2kΩ, CCT= 0.068µF, TA= -40°C to +85°C, unless otherwise noted. Typical values are at= +25°C.) (Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITS
Input Voltage Range014V
Input Operating Range(Note 2)4.16.0V
Input Undervoltage ThresholdWhen POK goes low, DC rising, 500mV hysteresis3.894.04.10V
Input Overvoltage ThresholdWhen POK goes high, DC rising, 200mV hysteresis6.26.56.8V
Input Supply CurrentIBAT = 0mA, RTHM = 10kΩ9802000µA
Shutdown Input CurrentVEN = 5V275435µA
Input to BAT On-ResistanceVDC = 3.7V, VBAT = 3.6V0.250.5Ω
Input to BAT Dropout VoltageDC falling, 200mV hysteresis575150mV
BAT
TA = +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 = 2kΩ675750825
RSETI = 5kΩ275300325DC Charging Current
RSETI = 2kΩ, VBAT = 2.0V67.57582.5
Soft-Start TimeRamp time to fast-charge current1.2ms
BAT Prequal ThresholdWhen charging current changes, BAT rising, 170mV
hysteresis2.302.502.54V
BAT Leakage CurrentVDC = 0V, VBAT = 4.2V0.0015µA
CONTROL INPUTS AND OUTPUTS
SETI
RSETI Resistance RangeGuaranteed by charging current1.55.0kΩ
MAX8600A
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
ELECTRICAL CHARACTERISTICS (continued)
(VDC= 5V, VBAT= 3.6V, VEN= 0V, RSETI= 2kΩ, CCT= 0.068µF, TA= -40°C to +85°C, unless otherwise noted. Typical values are at= +25°C.) (Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITS
Rising1.6Logic Input ThresholdsFalling0.4V
Logic Input Resistance to
GND2504851000kΩ
POK
Logic Output Voltage, LowIPOK = 100µA29100mV
TA = +25°C0.0011Logic Output Leakage
Current, HighVPOK = VDC = 16V
TA = +85°C0.01
CHG, FLT
Logic Output Voltage, LowI C H G = I F L T = 1 m A 12100mV
TA = +25°C0.0011Logic Output Leakage
Current, High
VCHG = VFLT = 5.5V,
VDC = 0VTA = +85°C0.01µA
CHG
RSETI = 1.5kΩ60
RSETI = 2kΩ304560CHG/Top-Off Current
Threshold
IBAT falling, battery is
chargedRSETI = 5kΩ18
THM
THM Pullup ResistanceMatch to thermistor resistance at TA = +25°C-1%10+1%kΩ
THM Resistance, HotRTHM falling, 420Ω hysteresis3.723.944.13kΩ
THM Resistance, ColdRTHM rising, 2.7kΩ hysteresis26.728.329.7kΩ
THM Resistance, DisabledRTHM falling, 230Ω hysteresis240309370Ω
TIMERS, CT
Timer AccuracyCCT = 0.068µF-20+20%
Prequal Time LimitFrom POK low and EN low to end of prequal charge,
BAT < 2.4V, CCT = 0.068µF34.8min
Charge Time LimitFrom POK low and EN low to end of charge, CCT = 0.068µF334min
Top-Off Time LimitFrom CHG high to done, CCT = 0.068µF69.6min
THERMAL LOOP
Thermal-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, IBAT/TJ (over +100°C)5%/°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:Guaranteed by undervoltage- and overvoltage-threshold testing. For complete charging, the input voltage must be greater
than 4.35V.
MAX8600A
Single-Input 1-Cell Li+ Charger 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
MAX8600A toc01
INPUT VOLTAGE (V)
SUPPLY CURRENT (
VEN = 0V
DISABLED SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX8600A toc02
INPUT VOLTAGE (V)
SUPPLY CURRENT (
VEN = 5V
CHARGE CURRENT
vs. BATTERY VOLTAGE
MAX8600A toc03
VBAT (V)
CHARGE CURRENT (mA)
RSETI = 1.5kΩ
RSETI = 3kΩ
RSETI = 2kΩ
DASHED DATA TAKEN
WITH PULSE TESTING TO
AVOID THERMAL LIMIT
CHARGE CURRENT
vs. DC VOLTAGE
MAX8600A toc04
VDC (V)
CHARGE CURRENT (mA)
RSETI = 1.5kΩ
RSETI = 2kΩ
RSETI = 3kΩ
DASHED DATA
TAKEN WITH PULSE
TESTING TO AVOID
THERMAL LIMIT
CHARGE CURRENT
vs. INPUT VOLTAGE HEADROOM
MAX8600A toc05
VIN - VBAT (V)
CHARGE CURRENT (mA)
BATTERY REGULATION
VOLTAGE vs. AMBIENT TEMPERATURE
MAX8600A toc06
TA (°C)
BATTERY REGULATION VOLTAGE (V)
CHARGE CURRENT vs. AMBIENT
TEMPERATURE (750mA CHARGE)
MAX8600A toc07
TA (°C)
CHARGE CURRENT (mA)
VBAT = 4V
VBAT = 3.6V
MAX8600A
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
PINNAMEFUNCTION
1, 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. BAT
is high impedance when the IC is disabled. Ensure that all BAT pins are connected together.SETI
DC Charge-Current Programming Pin. Connect a resistor from SETI to GND to set the maximum charging
current (IBAT = 1500V/RSETI), the prequal current, and the CHG done threshold. Monitor charging current
by measuring this pin voltage. SETI is high-impedance when EN is high, or DC is at GND.THM
Thermistor Input. Connect a 10kΩ NTC thermistor, in close proximity to the battery, from THM to ground
to monitor the battery temperature. The IC suspends charging when RTHM is outside the hot and cold
limits. Disable thermistor functionality by connecting THM to GND. THM is high impedance when EN is
high or DC is at GND.GNDGround
5CT
Timing 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. CT is high impedance when EN is
high or DC is at GND.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. EN has an internal 470kΩ pulldown resistance to GND.POK
Power-OK Monitor. POK is an open-drain output that pulls low when a valid charging source is detected.
POK is high impedance when DC voltage is outside valid range. POK remains active monitoring DC with
the charger enabled 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)
MAX8600A toc08
TA (°C)
CHARGE CURRENT (mA)
VBAT = 4V
VBAT = 3.6V
RSETI = 1.5kΩ
FAST-CHARGE TIME vs. CCT
MAX8600A toc09
CCT (μF)
FAST-CHARGE TIME (MIN)
MAX8600A
Single-Input 1-Cell Li+ Charger with
OVP Protection and Programmable Charge Timer
PINNAMEFUNCTIONCHG
Charging-Status Output. CHG pulls low when the battery is above 2.5V and being charged with a current
greater than 6% of the current programmed with RSETI. CHG is high impedance when the charger is in
prequal, top-off, or disabled.
9, 12, 13DCDC Input Source. Connect directly to a 4.5V to 6.0V charging source. Bypass DC to GND with 1µF or
greater. DC is overvoltage protected to 14V. Ensure that all DC pins are connected together.FLT
Fault Status Output. FLT pin pulls low when the fast-charge or prequal timers expire and the battery
voltage is not above the required threshold. Clear the fault by raising EN or dropping DC to GND (remove
input power).EPExposed Pad. Connect EP to the GND plane for optimum thermal dissipation.
Pin Description (continued)
ANY STATE
FAULT
CHG = HIGH
FLT = LOW
IBAT < 90/RSETI
AND VBAT ≥ 4.2V
SET TIMER = 0s
VDC INVALID OR
VDC < VBAT OR
EN HIGH
OFF
POK = MONITORS INPUT
CHG = HIGH, FLT = HIGH
IBAT = 0mA
EN LOW AND
POK GOOD
SET TIMER = 0s
PREQUAL
POK = LOW, CHG = HIGH, FLT = HIGH
IBAT = 150/RSETI
DONE
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA
TOP-OFF
FAST-CHARGE
POK = LOW, CHG = LOW,
FLT = HIGH, VBAT ≤ 4.2V,
IBAT ≤ 1500/RSETI
SUSPEND PQ
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA,
TIMER HALTED
SUSPEND FC
TIMER > 34.8min
TIMER > 334min
TIMER > 69.6min
POK = LOW, CHG = HIGH,
FLT = HIGH, VBAT ≤ 4.2V
IBAT < 150/RSETI
AND VBAT < 4.2V
SET TIMER = 0s
NOTE: ALL TIMER VALUES
ARE FOR CCT = 0.068μF
THM NOT OK
THM OK
POK = LOW, CHG = HIGH,
FLT = HIGH, IBAT = 0mA,
TIMER HALTED
VBAT < 2.37V
SET TIMER = 0s
THM NOT OK
THM OK
VBAT < 4.1V
SET TIMER = 0s
VBAT > 2.5V
SET TIMER = 0s
Figure 1. Charger State Diagram

Partno	Mfg	Dc	Qty	Available	Descript
MAX8600AETD+	MAXIM	N/a	82000	avai	Single-Input 1-Cell Li+ Charger with OVP Protection and Programmable Charge Timer
MAX8600AETD+T \|MAX8600AETDT	MAX	N/a	49	avai	Single-Input 1-Cell Li+ Charger with OVP Protection and Programmable Charge Timer