MPS EV5480-C-00A Manuel utilisateur

EV5480-C-00A

Integrated Charger with 5V/100mA DCDC

Synchronous Regulator

Evaluation Board

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 1

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The Future of Analog IC Technology

DESCRIPTION

The EV5480-C-00A is an evaluation board for

the MPQ5480, a monolithic power management

solution for hearing instruments.

MPQ5480 contains a USB compatible, constant

current/ constant voltage charger along with a

high efficiency synchronous step down

regulator. It also features cell protection and a

separate power switch for powering additional

power devices.

The hysteresis control scheme provides fast

transient response and eases loop stabilization.

Fault condition protection includes cycle by

cycle current limiting, output short protection

and thermal shutdown.

The EV5480-C-00A is assembled and tested

with a WLCSP-16 (1.7mmx1.7mm) package.

ELECTRICAL SPECIFICATIONS

Parameter Symbol Value Units

Input Voltage VIN 4-6 V

Battery Voltage VBAT 2.5-5 V

Output Voltage VOUT 1.22 V

Output Current IOUT 40 mA

FEATURES

Wide 4V to 6V Charger Input Range

Guaranteed 100mA DC-DC Output Current

Feedback Voltage Accuracy: 1%

1.22V Default Output Voltage

Cycle-by-Cycle Over Current Protection

On Die Thermal Protection

Stable with Low ESR Output Ceramic

Capacitors

Fully Assembled and Tested

APPLICATIONS

Wearable Device

Other Battery Based Portable Device

ll MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Qualit

ssurance.

“MPS” and “The Future of Analog IC Technology” are registered trademarks o

Monolithic Power Systems, Inc.

EVALUATION BOARD

(L x W x H) 2.5” x 2.5” x 0.4”

(6.4cm x 6.4cm x 1.0cm)

Board Number MPS IC Number

EV5480-C-00A MPQ5480GC

Efficiency

vs. Load Current

0 10203040

OUT

(mA)

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

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EVALUATION BOARD SCHEMATIC

4.7uF

36.5k

10uH

4V-6V

10uF

0.1uF

VCH

10uF

VBAT

16V

VO2

NC A3,B3,

A4,C4,

VCH

VBAT

EN/PBTN

MPQ5480

VO2 B2

PGND

AGND

TEOL

IPK D3

10uF/NS

VOUT

SW D1

VOUT D2

124k

ISET A2

SW1

1.22V/40mA

CHG

(mA) R

ISET

(kΩ)

10 124

12 100

51 15

127 0

IPK(mA) RIPK(kΩ)

30 100

50 36.5

100 17.8

200 7.87

Package Reference

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 3

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EVQ5480-C-00A BILL OF MATERIAS

Designator Value Description Package Manufacture Manufacture_PN

C1 4.7uF Ceramic Cap;25V;X7R; 1206 muRata GRM31CR71E475KA88L

C2 10uF Ceramic Cap;10V;X7R; 1206 muRata GRM31CR71A106KA01L

C3, C5 0.1uF Ceramic Cap;16V;X7R; 0603 muRata GRM188R71C104KA01D

C4 10uF Ceramic Cap;16V;X7R; 1206 muRata GRM31CR71C106KAC7L

C6 NS

L1 10uH

Inductor;10uH;

936mOhm;520mA SMD TDK VLS2010ET-100M

R1 124K Film Resistor;1%; 0603 Yageo RC0603FR-07124KL

R2 36.5K Film Resistor;1%; 0603 Yageo RC0603FR-0736K5L

SW1 Button any

U1 CSP1.7*

1.7-16 MPS MPQ5480GC

VO2, GND 1.0 Gold Pin HZ

VCH, VBAT,

GND, VOUT,

GND

2.0 Gold Pin HZ

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 4

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TYPICAL PERFORMANCE CHARACTERISTICS

VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.

Efficiency

vs. Load Current

0 10203040

OUT

(mA)

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 5

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TYPICAL PERFORMANCE CHARACTERISTICS

VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.

DC/DC Section

Steady State

IOUT=1mA

Steady State

IOUT=30mA

Push-button On

IOUT=0A

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

50mA/div.

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

50mA/div.

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

100mA/div.

10µs/div. 1µs/div. 400µs/div.

Push-button On

IOUT=30mA

Push-button Off

IOUT=0A

Push-button Off

IOUT=30mA

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

50mA/div.

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

100mA/div.

CH3: VEN

2V/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH4: IL

50mA/div.

400µs/div. 20ms/div. 200µs/div.

SCP Steady State

SCP Entry

IOUT=0A to Short Circuit

SCP Entry

IOUT=30mA to Short Circuit

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH3: IL

50mA/div.

CH2: VOUT

1V/div.

CH1: VSW

2V/div.

CH3: IL

50mA/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH3: IL

50mA/div.

10µs/div. 10µs/div. 4µs/div.

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 6

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TYPICAL PERFORMANCE CHARACTERISTICS

VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.

DC/DC Section

SCP Recovery

Short Circuit to IOUT =0

SCP Recovery

Short Circuit to IOUT =30mA

Thermal Shutdown

IOUT =30mA

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH3: IL

50mA/div.

CH2: VOUT

500mV/div.

CH1: VSW

2V/div.

CH3: IL

50mA/div.

CH1: VSW

2V/div.

CH2: VOUT

1V/div.

CH3: VBATT

2V/div.

CH4: IL

50mV/div.

200µs/div. 200µs/div. 1s/div.

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 7

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TYPICAL PERFORMANCE CHARACTERISTICS

VBATT = 3.8V, VCH=5V, RICHG=2.49kΩ, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise

noted.

Charger Section

End of Charge

Ramp up V

BATT

Full Charge Cycle

Ramp up V

BATT

Dead Battery Detection

Keep V

BATT

= 2.5V for ~7 minutes

Plug In when DC/DC

Working

Charger Thermal Shutdown

& Recovery

Open Battery

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

10mA/div.

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

50mA/div.

2V/div.

OUT

1V/div.

CHG

50mA/div.

2V/div.

BATT

2V/div.

CHG

10mA/div.

On V

Off Trickle Charging

BATT

= 2.5V

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 8

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TYPICAL PERFORMANCE CHARACTERISTICS

VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.

Vo2 Function

Plug In when Vo2

Working

OUT2

=100mA

OUT2

2V/div.

BATT

2V/div.

OUT2

100mA/div.

OUT2

2V/div.

BATT

2V/div.

OUT2

100mA/div.

OUT2

2V/div.

BATT

2V/div.

OUT2

100mA/div.

OUT2

2V/div.

BATT

2V/div.

OUT2

100mA/div.

Steady State

OUT2

=100mA

Push-button On

OUT2

=100mA

Push-button Off

OUT2

=100mA

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 9

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PRINTED CIRCUIT BOARD LAYOUT

Figure 1—Top Silk Layer & Top Layer Figure 2—Bottom Layer

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD

NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third

party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not

assume any legal responsibility for any said applications.

EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 10

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QUICK START GUIDE

1. Connect the positive and negative terminals of the load to the VOUT and GND pins, respectively.

Be aware that electronic load represents negative impedance to the regulator and if set it to a too

high current, the SCP protection may be triggered at startup.

2. Preset the power supply output to expected value (4V-6V), and then turn it off.

3. Connect the positive and negative terminals of the power supply output to the VCH and GND pins,

respectively.

4. Connect the positive and negative terminals of a battery (2.5V to 5V) to the VBAT and GND pins,

respectively.

5. Push the S1 button for longer than 2.2s, the DC/DC will be turned on automatically; Push the S1

button for longer than 2.2s to shutdown it.

6. Turn the power supply on, the charger will be turned on automatically to charge the battery;

7. To use the EOL (End of life) function, connecting a 0.1µF capacitor on TEOL pin to provide voltage

filtering for low battery detection.

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