MAX8630WETD20+-MAX8630WETD20+T-MAX8630WETD25+-MAX8630XETD20+ Fast Delivery |IC PHOENIX CO.,LIMITED

MAX8630WETD20+ ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNApplications14 TDFN-14MAX8630WETD15+T ADQ T1433-2(3mm x 3mm)Display Backlight (Up to 5 LEDs)Note: A ..
MAX8630WETD20+T ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNFeaturesThe MAX8630W/MAX8630X charge pumps drive up to 5 ♦ 93% Max/85% Avg. Efficiency (P /P ) Over ..
MAX8630WETD25+ ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNMAX8630W/MAX8630X19-0825; Rev 0; 5/07125mA 1x/1.5x Charge Pumps for5 White LEDs in 3mm x 3mm TDFN
MAX8630XETD20+ ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNELECTRICAL CHARACTERISTICS(V = 3.6V, V = 0V, EN_ (PWM) = IN, T = -40°C to +85°C, unless otherwise n ..
MAX8630ZETD18+ ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNApplications14 TDFNMAX8630YETD15+T AAS T1433-2(3mm x 3mm)Display Backlight (Up to 5 LEDs)Note: All ..
MAX8630ZETD18+T ,125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFNFeaturesThe MAX8630Y/MAX8630Z charge pumps drive up to 5 ♦ 93% Max/85% Avg. Efficiency (P /P ) Over ..
MB84256A-10LLP , CMOS 256K-BIT LOW POWER SRAM
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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 ..

MAX8630WETD20+-MAX8630WETD20+T-MAX8630WETD25+-MAX8630XETD20+
125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
General Description
The MAX8630W/MAX8630X charge pumps drive up to 5
white LEDs with regulated constant current up to 125mA
total. By utilizing adaptive 1x/1.5x charge-pump modes
and very low-dropout current regulators, they achieve
high efficiency over the full 1-cell Li+ battery input volt-
age range. The 1MHz fixed-frequency switching allows
for tiny external components, and the regulation scheme
is optimized to ensure low EMI and low input ripple. An
integrated derating function protects the LEDs from
overheating during high ambient temperatures.
The MAX8630W/MAX8630X are factory trimmed for full-
scale LED current options of 15mA, 18mA, 20mA, and
25mA. The MAX8630X uses two enable inputs (ENM for
3 main LEDs and ENS for 2 sub LEDs) for simple on/off
control and single-wire, serial-pulse dimming in 32 linear
steps. The MAX8630W uses a single direct PWM input
(PWM) to control all 5 LEDs with DC current proportional
to the PWM duty cycle. If both ENM and ENS (or PWM)
are kept low for more than 4ms, the MAX8630_ enters
shutdown. The MAX8630W/MAX8630X are available in a
14-pin, 3mm x 3mm TDFN package (0.8mm max height).
Applications
Display Backlight (Up to 5 LEDs)
Main (3 LEDs) + Sub (2 LEDs) Displays
Cell Phones and Smartphones
PDAs, Digital Cameras, and Camcorders
Features93% Max/85% Avg. Efficiency (PLED/PBATT) Over
Li+ Battery Discharge1% LED Current Accuracy125mA Total Drive CapabilityAdaptive 1x/1.5x Mode SwitchoverSingle-Wire, Serial-Pulse Dimming (MAX8630X)
Independent On/Off/Dimming for Main and Sub
Linear—Full, 31/32nd, 30/32nd, … 1/32ndDirect-PWM Dimming (MAX8630W)15, 18, 20, and 25mA Full-Scale VersionsLow 0.1µA Shutdown CurrentSoft-Start Eliminates Inrush CurrentOutput Overvoltage ProtectionThermal-Derating Function Protects LEDs14-Pin, 3mm x 3mm TDFN Package
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for
5 White LEDs in 3mm x 3mm TDFN
LED2LED1LED3LED5
C2P
C2N
C1NGNDTDFN
3mm × 3mm
TOP VIEW
( ) ARE FOR MAX8630W
ENM (CPWM)ENS (PWM)
C1P
OUT
MAX8630W
MAX8630X
LED4
Pin Configuration
Ordering Information
MAX8630X
1μF
1μF
1μF1μF
GND
ENM
ENS
OUTC1PC1N
MAIN
OUTPUT
SUB
C2PC2N
ENABLE MAIN
ON/OFF AND
DIMMING
ENABLE SUB
ON/OFF AND
DIMMING
INPUT
2.7V TO 5.5V
LED1
LED2
LED3
LED4
LED5
Typical Operating Circuit
19-0825; Rev 0; 5/07
Ordering Information continuedat end of data sheet.
EVALUATION KIT
AVAILABLE
PARTPIN-
PACKAGE
TOP
MARK
PKG
CODE
MAX8630WETD15+T14 TDFN-14
(3mm x 3mm)ADQT1433-2
Selector Guide appears at end of data sheet.
Note:All devices are specified to operate over the -40°C to
+85°C operating temperature range.
+Denotes a lead-free package.
T = Tape and reel.
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN= 3.6V, VGND= 0V, EN_ (PWM) = IN, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
IN, OUT to GND.....................................................-0.3V to +6.0V
C1N, C2N, ENM, CPWM, ENS,
PWM to GND............................................-0.3V to (VIN+ 0.3V)
LED_ to GND............................................-0.3V to (VOUT+ 0.3V)
C1P, C2P to GND...-0.3V to greater of (VOUT+ 1V) or (VIN+ 1V)
OUT Short Circuit to GND..........................................Continuous
Continuous Power Dissipation (TA= +70°C)
14-Pin TDFN 3mm x 3mm
(derate 18.2mW/°C above +70°C).............................1454mW
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERCONDITIONSMINTYPMAXUNITS
IN Operating Voltage2.75.5V
Undervoltage-Lockout ThresholdVIN rising or falling2.202.452.65V
Undervoltage-Lockout Hysteresis100mV
Output Overvoltage Protection
ThresholdVOUT rising, any LED_ = GND5V
1/32nd setting, 1.5x mode1.4No-Load Supply Current1/32nd setting, 1x mode0.35mA
TA = +25°C0.012Shutdown Supply CurrentENM = ENS (PWM) = GNDTA = +85°C0.1µA
Soft-Start Time (tSOFT-START)2ms
MAX8630_ETD1515
MAX8630_ETD1818
MAX8630_ETD2020Full-Scale LED Current
MAX8630_ETD2525
TA = +25°C-1±0.3+1Full-Scale LED Current AccuracyTA = -40°C to derating function start temperature-3.5±0.3+3.5%
Derating Function Start
Temperature40°C
Derating Function SlopeTA = +40°C to +85°C-1.67%/°C
LED_ Dropout Voltage100% LED setting (Note 2)4075mV
1x to 1.5x Mode Transition
ThresholdVLED_ falling88mV
Input Voltage Mode Transition
Hysteresis70mV
1.5x Mode Regulation VoltageMinimum of VLED_122mV
OUT Pulldown Resistance in
ShutdownENM = ENS (PWM) = GND5kΩ
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
Note 1:Limits are 100% production tested at TA= +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2:Dropout voltage is defined as the LED_ to GND voltage at which current into LED_ drops 10% from the value at VLED_= 0.2V.
ELECTRICAL CHARACTERISTICS (continued)
(VIN= 3.6V, VGND= 0V, EN_ (PWM) = IN, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITS
1x mode, (VIN - VOUT) / IOUT0.81.5Open-Loop OUT Resistance1.5x mode, (1.5VIN - VOUT) / IOUT3.27.2Ω
Maximum OUT CurrentVIN ≥ 3.2V, VOUT = 3.9V125mA
OUT Short-Circuit Current LimitVOUT < 1.25V57mA
Switching Frequency1MHz
Direct-PWM Dimming Filter
Corner Frequency (MAX8630W)
CCPWM = 0.1µF, (PWM frequency of 900Hz to 200kHz
recommended)10Hz
EN_ (PWM) High VoltageVIN = 2.7V to 5.5V1.4V
EN_ (PWM) Low VoltageVIN = 2.7V to 5.5V0.4V
EN_ (PWM) Minimum Input
Slew RateVIN = 2.7V to 5.5V (recommended minimum slew rate)1V/µs
TA = +25°C0.011EN_ (PWM) Input CurrentVEN_ (PWM) = 0V or 5.5VTA = +85°C0.1µA
EN_ (PWM) Low Shutdown Delay
(tSHDN)4ms
EN_ tLO (See Figure 4)0.5500.0µs
EN_ tHI (See Figure 4)0.5µs
Initial EN_ tHI (See Figure 4)First EN_ (PWM) high pulse50µs
Thermal Shutdown+160°C
Thermal-Shutdown Hysteresis20°C
Typical Operating Characteristics
(VIN= 3.6V, ENM = ENS = IN, TA= +25°C, unless otherwise noted.)
EFFICIENCY vs. INPUT VOLTAGE
DRIVING 5 LEDs
MAX8630W/X toc01
INPUT VOLTAGE (V)
EFFICIENCY (%)
ILED = 1.875mA
ILED = 8.125mA
ILED = 20mA
VIN FALLING
INPUT CURRENT vs. INPUT VOLTAGE
DRIVING 5 LEDs
MAX8630W/X toc02
INPUT VOLTAGE (V)
INPUT CURRENT (mA)
ILED = 8.125mA
ILED = 1.875mA
ILED = 20mA
VIN FALLING
INPUT CURRENT vs. INPUT VOLTAGE
DRIVING 3 MAIN LEDs
MAX8630W/X toc03
INPUT VOLTAGE (V)
INPUT CURRENT (mA)
ILED = 8.125mA
ILED = 1.875mA
ILED = 20mA
VIN FALLING
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
INPUT CURRENT vs. INPUT VOLTAGE
DRIVING 2 SUB LEDs
MAX8630W/X toc04
INPUT VOLTAGE (V)
INPUT CURRENT (mA)
ILED = 8.125mA
ILED = 1.875mA
ILED = 20mA
VIN FALLING
INPUT RIPPLE VOLTAGE vs. SUPPLY
VOLTAGE DRIVING 5 WHITE LEDs
MAX8630W/X toc05
INPUT VOLTAGE (V)
INPUT RIPPLE VOLTAGE (mV
P-P
20mA/LED
15mA/LED
8mA/LED
2mA/LED
LED CURRENT MATCHING vs. INPUT
VOLTAGE (25mA/LED)
MAX8630W/X toc06
INPUT VOLTAGE (V)
LED CURRENT (mA)
LED CURRENT MATCHING vs. INPUT
VOLTAGE (2.5mA/LED)
MAX8630W/X toc07
INPUT VOLTAGE (V)
LED CURRENT (mA)
OUTPUT CURRENT vs. TEMPERATURE
(5 LEDs AT 25mA EACH)
MAX8630W/X toc08
TEMPERATURE (°C)
OUTPUT CURRENT (mA)3510-15
TEMPERATURE
DERATING
1x MODE OPERATING WAVEFORMS
(VIN = 4.0V)
MAX8630W/X toc09
1μs/div
200mV/div
(AC-COUPLED)
200mV/div
(AC-COUPLED)
100mA/div
VOUT
VIN
IIN
1.5x MODE OPERATING WAVEFORMS
(VIN = 3.6V)
MAX8630W/X toc10
1μs/div
200mV/div
(AC-COUPLED)
200mV/div
(AC-COUPLED)
100mA/div
VOUT
VIN
IIN
Typical Operating Characteristics (continued)
(VIN= 3.6V, ENM = ENS = IN, TA= +25°C, unless otherwise noted.)
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
STARTUP AND SHUTDOWN
MAX8630W/X toc11
1ms/div
5V/div
2V/div
100mA/div
100mA/div
VENM AND
VENS
VOUT
IIN
IOUT
MAIN STARTUP AND SHUTDOWN
WITH SUB ENABLED
MAX8630W/X toc12
1ms/div
5V/div
2V/div
100mA/div
100mA/div
VENM
VOUT
IIN
IOUT
STARTUP AND DIMMING
MAX8630W/X toc13
20ms/div
5V/div
1V/div
20mA/div
VENM AND
VENS
VOUT
IOUT
Typical Operating Characteristics (continued)
(VIN= 3.6V, ENM = ENS = IN, TA= +25°C, unless otherwise noted.)
LINE-TRANSIENT RESPONSE WITH MODE CHANGE
(VIN = 3.8V TO 3.2V TO 3.8V)
MAX8630W/X toc14
200μs/div
1V/div
500mV/div
50mA/div
VIN
VOUT
IOUT
Pin Description
PIN A X8 6 3 0 XM A X8 6 3 0 W N A M EF U N C T IO N G N D r ound . C onnect G N D to system g r ound and the i np ut b yp ass cap aci tor as
cl ose to the IC as p ossi b l e. C onnect GN D to the exp osed p ad d i r ectl y und er
the IC .C 1N Tr ansfer C ap aci tor 1 N eg ati ve C onnecti on. C onnect a 1µF cer am i c cap aci tor
fr om C 1P to C 1N .IN S up p l y V ol tag e Inp ut. C onnect a 1µF cer am i c cap aci tor fr om IN to GN D . Thenp ut vol tag e r ang e i s 2.7V to 5.5V .C 2N Tr ansfer C ap aci tor 2 N eg ati ve C onnecti on. C onnect a 1µF cer am i c cap aci tor
fr om C 2P to C 2N .
MAX8630W/MAX8630X
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
Pin Description (continued)
PIN A X8 6 3 0 XM A X8 6 3 0 W N A M EF U N C T IO N C 2P Tr ansfer C ap aci tor 2 P osi ti ve C onnecti on. C onnect a 1µF cer am i c cap aci tor
fr om C 2P to C 2N .C 1P Tr ansfer C ap aci tor 1 P osi ti ve C onnecti on. C onnect a 1µF cer am i c cap aci tor
fr om C 1P to C 1N .O U Tutp ut. C onnect a 1µF cer am i c cap aci tor fr om O U T to G N D . C onnect OU T to
the anod es of al l the LE D s. In shutd ow n, OU T i s p ul l ed d ow n b y an i nter nal
5kΩ r esi stor .
8— E N S nab l e and D i m m i ng C ontr ol for S ub LE D s ( LE D 4 and LE D 5) . D r i ve E N S l og i c- ow for g r eater than 4m s to d i sab l e the sub LE D s. D r i ve b oth E N M and E N S og i c- l ow for g r eater than 4m s to shut d ow n the IC . D r i ve E N S l og i c- hi g h toeg i n soft- star t and enab l e m axi m um ( 100% ) sub LE D cur r ent. S ub seq uentul ses on E N S cause the sub LE D cur r ent to d ecr ease i n 32 l i near step s.
Because of the soft- star t d el ay, i t i s p ossi b l e to tur n on the IC and q ui ckl y set ai m l evel so the sub LE D cur r ent never tr ansi ti ons thr oug h the m axi m um
setti ng . S ee the E N M /E N S D i m m i ng C ontr ol secti on.
9— E N M nab l e and D i m m i ng C ontr ol for M ai n LE D s ( LE D 1, LE D 2, and LE D 3) . D r i veN M l og i c- l ow for g r eater than 4m s to d i sab l e the m ai n LE D s. D r i ve b oth E N M
and E N S l og i c- l ow for g r eater than 4m s to shut d ow n the IC . D r i ve E N M l og i c-
hi g h to b eg i n soft- star t and enab l e m axi m um ( 100% ) m ai n LE D cur r ent.ub seq uent p ul ses on E N M cause the m ai n LE D cur r ent to d ecr ease i n 32i near step s. Because of the soft- star t d el ay, i t i s p ossi b l e to tur n on the IC and ui ckl y set a d i m l evel so the m ai n LE D cur r ent never tr ansi ti ons thr oug h theaxi m um setti ng . S ee the E N M /E N S D i m m i ng C ontr ol secti on.
— 8P WM i r ect P WM i np ut. P W M contr ol s outp ut cur r ent as a p er centag e of ful l - scal e
cur r ent i n p r op or ti on to P W M si g nal d uty cycl e. The fr eq uency r ang e i s 900H z
to 200kH z.
— 9C P W M WM Fi l ter C ap aci tor C onnecti on. C onnect a cap aci tor fr om C P W M to G N D to
for m a fi l ter w i th the i nter nal 150kΩ r esi stor . The r ecom m end ed cap aci tor for
10H z cor ner i s 0.1µF.10LE D 511LE D 4ub LE D C athod e C onnecti ons and C har g e- P um p Feed b ack. C ur r ent fl ow i ng nto LE D _ i s b ased on the E N S ( or P W M ) d escr i p ti on ab ove. The char g e p um p eg ul ates the l ow est LE D _ vol tag e to 0.12V . C onnect LE D _ to O U T i f the
cor r esp ond i ng LE D i s not p op ul ated .12LE D 313LE D 214LE D 1ai n LE D C athod e C onnecti ons and C har g e- P um p Feed b ack. C ur r ent fl ow i ng nto LE D _ i s b ased on the E N M ( or P W M ) d escr i p ti on ab ove. The char g e p um p eg ul ates the l ow est LE D _ vol tag e to 0.12V . C onnect LE D _ to O U T i f the
cor r esp ond i ng LE D i s not p op ul ated .
— — E P E xp osed P ad d l e. C onnect to GN D d i r ectl y und er the IC .

Partno	Mfg	Dc	Qty	Available	Descript
MAX8630WETD20+	MAXIM	N/a	150000	avai	125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
MAX8630WETD20+T	MAXIM	N/a	2268	avai	125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
MAX8630WETD25+	MAXIM	N/a	615	avai	125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
MAX8630XETD20+	MAXIM	N/a	35000	avai	125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN