SP6641BEK-3.3 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Power/power management> The power supply circuit> SP6641BEK-3.3

SP6641BEK-3.3: Description1.5 A BATTERY CHARGE CONTROLLER, PDSO5; CategoryPower/power management The power supply circuit; File Size116KB，5 Pages; ManufacturerSIPEX; Websitehttp://www.sipex.com/

Download Datasheet Parametric Compare View All

SP6641BEK-3.3 Overview

1.5 A BATTERY CHARGE CONTROLLER, PDSO5

SP6641BEK-3.3 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	SIPEX
package instruction	SOT-23, 5 PIN
Reach Compliance Code	unknow
Analog Integrated Circuits - Other Types	BATTERY CHARGE CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE FREQUENCY MODULATION
Maximum input voltage	4.5 V
Minimum input voltage	0.5 V
Nominal input voltage	1.3 V
JESD-30 code	R-PDSO-G5
JESD-609 code	e0
length	2.95 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	1.5 A
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	240
Certification status	Not Qualified
Maximum seat height	1.45 mm
surface mount	YES
Switch configuration	BOOST
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	1.625 mm

Preview

Download Datasheet

View All

SP6641A/6641B

Low Noise Evaluation Board

Easy Evaluation for the

SP6641A/6641B Single or

Dual Cell Alkaline to 3.3V or

5V Output

SP6641B provides up to

500mA output current with

less than 50mVpp ripple

High Efficiency: up to 87%

SOT23-5 Package & SMT

components for small, low

SP6641A/6641B Evaluation Board Schematics

SHDN

SP6641A 1 OR 2 CELL BOOST

U1 SP6641A

SHDN

VOUT

GND

VBATT

1uF Cer.

VOUT

VBATT

0.9V to 3.3V

22uF

Ceramic

22uH

SCHOTTKY DIODE

22uF

Ceramic

SHDN

SP6641B 2 CELL BOOST

U1 SP6641B

SHDN

VOUT

GND

VBATT

1uF Cer.

330uF

40mohm

VOUT

VBATT

1.8V to 3.3V

100uF

80mohm

10uH

SM Bead

VFILTER

10uF Ceramic

SCHOTTKY DIODE

USING THE EVALUATION BOARD

1) Powering Up the SP6641A/6641B Circuit

The SP6641A/6641B Evaluation Board can be powered from inputs from a +0.9V to +3.3V from

1 or 2 alkaline cells or a power supply. Connect with short leads directly to the “Vbatt” and

“Gnd” posts. Monitor the Output Voltage and connect the Load between the “Vout” post and the

“GND” post.

2) Using the J1 Jumper: Enabling the SP6641A/6641B Output and using the Shutdown

Mode

The SP6641A/6641B output will be enabled if the J1 Jumper is in the upper or pin 1 to 2

position. If J1 is in the pin 2 to 3 position, the Shutdown pin is brought to GND, which puts the

SP6641A/6641B in the low quiescent Shutdown Mode.

3) Selecting the Inductor

In selecting an inductor, the saturation current specified for the inductor needs to be greater

then the SP6641A/6641B peak current to avoid saturating the inductor, which would result in a

loss in efficiency and could damage the inductor. The SP6641A evaluation board uses a

Sumida CDRH5D28 22uH inductor with an Isat value of 0.9A and a DCR of 0.095ohms, which

easily handles the Ipeak of 0.33A of the SP6641A and will deliver high efficiencies. The

SP6641B evaluation board uses a Sumida CDRH5D28 10uH inductor with an Isat value of 1.3A

and a DCR of 0.065ohms, which easily handles the Ipeak of 1.0A of the SP6641B and will

deliver high efficiencies. Other inductors could be selected provided their Isat is greater than the

Ipeak of the SP6641A/6641B.

4) Selecting the Capacitors and Filter Components

For the SP6641A, 22uF ceramic capacitors are used, which work well due to their inherently low

ESR, which will help produce low peak to peak output ripple, and reduce high frequency spikes

as well due to their low impedance. To obtain low peak to peak ripple for the SP6641B, the

output capacitor needs to have ESR as low as 35 to 40 mohms and have a value of at least

100uF, for which the 330uF Sanyo POSCAP was chosen for its 40mohms max. ESR. Other

ultra low ESR capacitors such the radial lead 100uF Sanyo OSCON or one of the new SM low

ESR Polymer capacitors like the 100uF Panasonic UD series could be used. This low ripple is

obtained with no output spikes through the use of a LC filter consisting of small 0805 SM bead

core L2 and 10uF ceramic capacitor C3.

POWER SUPPLY DATA

Power supply data is provided for the “B” version of the SP6641B, which has a peak inductor

current limit of 1A, with the 3.3V output option. Figure 1 shows the switching signals still present

as 1.0V spikes on the 330uF capacitor C2. Note that no output spikes are seen in figures 2 and

3 through the use of a small LC filter after the 330uF capacitor. The SP6641B’s low output ripple

of 45 to 50mVpp is shown for a typical input of 2.0V to 3.0V and an output load of 300mA.

SP6641BEK-3.3 Related Products

	SP6641BEK-3.3	SP6641BKEB-3.3	SP6641BKEB-5.0	SP6641AKEB-5.0	SP6641BEK-5.0	SP6641AEK-5.0	SP6641AKEB-3.3	SP6641AEK-3.3
Description	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5	1.5 A BATTERY CHARGE CONTROLLER, PDSO5

Recommended Resources

Battery DC panel uninterrupted power supply conversion circuit

The ever-changing sound and light analog controller circuit 02

TPS92310 typical application circuit diagram

Bistable circuit with diode clamp

Negative voltage to positive voltage conversion circuit diagram 1

Simple electronic keyboard circuit

Does anyone have the EDA-VI experimental guide or the ID of the Electronic Development Network?: I urgently need an EDA-VI experiment guide. Does anyone have one? Or is there an ID on the Electronic Development Network? I need a download link....; lxbbd FPGA/CPLD

Respond to 3D acceleration sensor activity and transmit data: :) Accelerometers can be used to measure acceleration, motion, shock, vibration, tilt and pressure. Their applications include the automotive industry, other mobile machines, and a wide range of end d...; john_wang Sensor

Do you want a Qualcomm 500-dollar, 64-bit, quad-core, credit card-based mini computer with built-in wifi, gps, and bluetooth?: [i=s]This post was last edited by freebsder on 2015-7-23 16:05[/i] I worked hard to get @eric_wang to make a few of these things for everyone to review. He was responsible for the top and bottom roles...; freebsder DIY/Open Source Hardware

Measures to eliminate the impact of FPC unevenness: 1. Optimize the attachment position and quantity of high-temperature adhesive tape. The deformation of FPC is particularly obvious when high-temperature adhesive tape is used for attachment, which wil...; 方学放 PCB Design

Does anyone have a TI development board? Second-hand, usable. No more 811.: Help, does anyone have a second-hand board? My 811 is broken and I've almost played with it. I just happen to have a chance to change it. If anyone has an unused one, please give it to me. The price i...; 493025560 Microcontroller MCU

PIC microcontroller burning problems ask for advice: I am using PIC16F72 microcontroller, and the burning file is .HEX file. The program has been able to run normally, but after normal burning this time, the experiment found that some functions are norm...; 星晴 MCU

Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components