MPS EV5480-C-00A User manual

EV5480-C-00A
Integrated Charger with 5V/100mA DCDC
Synchronous Regulator
Evaluation Board
EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 1
8/28/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
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
A
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
y
A
ssurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks o
f
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
30
40
50
60
70
80
90
0 10203040
I
OUT
(mA)

EV5480-C-00A— INTEGRATED CHARGER WITH 5V/100MA SYNC REGULATOR EV BOARD
EV5480-C-00A Rev. 1.0 www.MonolithicPower.com 2
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TM
EVALUATION BOARD SCHEMATIC
4.7uF
C1
36.5k
R2
10uH
L1
4V-6V
10uF
C4
0.1uF
C5
0.1uF
C3
VCH
10uF
C2
VBAT
16V
VO2
NC A3,B3,
A4,C4,
D4
VCH
A1
VBAT
B1
EN/PBTN
B4
MPQ5480
VO2 B2
PGND
C1
AGND
C2
TEOL
C3
IPK D3
10uF/NS
C6
VOUT
SW D1
VOUT D2
124k
R1
ISET A2
SW1
1.22V/40mA
I
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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© 2017 MPS. All Rights Reserved.
TM
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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© 2017 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.
Efficiency
vs. Load Current
30
40
50
60
70
80
90
0 10203040
I
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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© 2017 MPS. All Rights Reserved.
TM
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
8/28/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
TM
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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© 2017 MPS. All Rights Reserved.
TM
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
V
CH
Plug In when DC/DC
Working
Charger Thermal Shutdown
& Recovery
Open Battery
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
10mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
OUT
1V/div.
I
CHG
50mA/div.
V
CH
2V/div.
V
BATT
2V/div.
I
CHG
10mA/div.
V
CH
On V
CH
Off Trickle Charging
V
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
8/28/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
VBATT = 3.8V, VCH=5V, L=10µH, CIN= 10µF, COUT=10µF, TA=+30ºC, unless otherwise noted.
Vo2 Function
V
CH
Plug In when Vo2
Working
I
OUT2
=100mA
V
OUT2
2V/div.
V
EN
2V/div.
V
BATT
2V/div.
I
OUT2
100mA/div.
V
OUT2
2V/div.
V
EN
2V/div.
V
BATT
2V/div.
I
OUT2
100mA/div.
V
OUT2
2V/div.
V
EN
2V/div.
V
BATT
2V/div.
I
OUT2
100mA/div.
V
OUT2
2V/div.
V
EN
2V/div.
V
BATT
2V/div.
I
OUT2
100mA/div.
Steady State
I
OUT2
=100mA
Push-button On
I
OUT2
=100mA
Push-button Off
I
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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© 2017 MPS. All Rights Reserved.
TM
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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TM
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.