LAPIS ML7661-EVK-001 Evaluation Board Evaluation Kit User Manual

LAPIS ML7661-EVK-001 Evaluation Board Evaluation Kit

Notes

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Introduction

ML7660-EVK-001/ML7661-EVK-001 is a reference design for healable devices.
This user’s manual describes ML7660-EVK-001/ML7661-EVK-001.

Notation

voltage level of VIH and VOH as defined in electrical characteristics.
“L” level| Signal level on the low voltage side; indicates the voltage level of VIL and VOL as defined in electrical characteristics.
Register description| Read/write attribute: R indicates read-enabled; W indicates write-enabled.
MSB: Most significant bit in an 8-bit register (memory)
LSB: Least significant bit in an 8-bit register (memory)

Overview

Overview

ML7661-EVK-001 is equipped with a power transmitter LSI ML7661 and ML7660-EVK-001 is equipped with a power receiver LSI ML7660. By facing the antennas, ML7660-EVK-001 can output 300mW of power.

• ML7660-EVK-001 can wirelessly charge batteries in a small space.
• EVK-001 is equipped with a detection function to detect the presence or absence of the battery.

Functions

• ML7661/ML7660 proprietary control
• FOD, removal detection
• Charging control using external charging IC Puller uses external power supply 5V Listener Li-ion battery 14mAh (4C charging)
• 300mW power supply (1mm distance between antennas)
• Detection of detachment
• Host interface Universal communication based on I2C interface

Example Configuration

ML7660-EVK-001

Board Information

• Size: 8.2mm x 5.8mm x 0.5mm
• Number of layers: 4
• Material: FR-4
• Copper thickness: 5um (Outside), 18um (Inside))
  

Schematic

Parts list

Table 1 ML7660-EVK-001 Parts list

Part| Type| Value| Part Number| Manufacture| Package size| Qty
---|---|---|---|---|---|---
C1, C2| Capacitor, Surface Mount| N.M.| –| –| 0603| 2
C3| Capacitor, Surface Mount| 330pF| GRM0335C1H331GE01#| Murata| 0603| 1
C4| Capacitor, Surface Mount| 15pF| GRM0335C1H150GA01#| Murata| 0603| 1
C5| Capacitor, Surface Mount| 4.7uF| GRM155R61A475ME01#| Murata| 1005| 1
C6| Capacitor, Surface Mount| 47pF| GRM0335C1H470FA01#| Murata| 0603| 1
C7| Capacitor, Surface Mount| 470pF| GRM033R11C471KA01#| Murata| 0603| 1
C8| Capacitor, Surface Mount| 0.47uF| GRM033R60J474KE90#| Murata| 0603| 1
C9| Capacitor, Surface Mount| 2.2uF| GRM035R61C225ME01#| Murata| 0603| 1
C10| Capacitor, Surface Mount| 0.47uF| GMD155R61A474KE11#| Murata| 1005| 1
D1, D2, D3, D4| Schottky Diode| –| RB061QS-20| Rohm| SOD-882| 4
MOSFET1| Nch + Pch MOSFET| –| QS6M4TR| Rohm| SOT-457T| 1
R1| Resistor, Surface Mount| 1Ω| –| Rohm| 0603| 1
R2, R3, R5| Resistor, Surface Mount| 10kΩ| –| Rohm| 0402| 3
R4| Resistor, Surface Mount| 330Ω| –| Rohm| 0402| 1
U1| | –| ML7660-311HBZ03E| LAPIS Technology| WLCSP30(2.28mm×2.61mm)| 1

Layout (Top View)

ML7661-EVK-001

Board Information

• Size: 45mm x 21mm x 0.5mm
• Number of layers: 4
• Material: FR-4
• Copper thickness: 18 μm (outside), 35 μm (inside)
  

Schematics

Parts list

2
C16_A, C16_B| Capacitor, Surface Mount| 1nF| GRM0335C1E102FA01#| Murata| 0603| 2
C17_A, C17_B, C18_A, C18_B| Capacitor, Surface Mount| 47pF| GRM0335C1E470JA01#| Murata| 0603| 4
C19_A, C19_B| Capacitor, Surface Mount| 47uF| GRM21BR61A476ME15#| Murata| 2012| 2
C22_A, C22_B| Capacitor, Surface Mount| 82pF| GQM1875C2E820FB12#| Murata| 1608| 2
C23_A, C23_B, C24_A, C24_B| Capacitor, Surface Mount| 100pF| GRM0335C1H101FA01#| Murata| 0603| 4
C25_A, C25_B| Capacitor, Surface Mount| N.M.| –| –| 1005| 2
C27_A, C27_B| Capacitor, Surface Mount| 470pF| GRM1555C1H471GA01#| Murata| 1005| 2
C29_A, C29_B| Capacitor, Surface Mount| 1.5nF| GRM1882C1H152JA01#| Murata| 1608| 2
C30_A, C30_B| Capacitor, Surface Mount| 100pF| GRM0335C2A101GA01#| Murata| 0603| 2
C31_A, C31_B| Capacitor, Surface Mount| 82pF| GRM0335C1H820GA01#| Murata| 0603| 2
C32_A, C32_B| Capacitor, Surface Mount| 18pF| GRM0335C1H180GA01#| Murata| 0603| 2
CN1| 2pin Pin header| –| –| –| 2.54mm pitch,φ=1.02mm| 1
F1| FUSE| –| MF-MSMF110/16-2| Bourns| 4.55mm×3.24mm| 1
FB1, FB1_A, FB1_B, FB2| –| –| BLM15AG100SN1D| Murata| 1005| 4
FB3| –| –| –| –| 1005| 1
L1_A, L1_B| Inductor, Surface Mount| 3.3μH| LQM2MPN3R3NG0L| Murata| 2mm×1.6mm| 2
L2_A, L2_B| Inductor, Surface Mount| 240nH| LQM2MPNR24MEHL| Murata| 2mm×1.6mm| 2
L3_A, L3_B| Inductor, Surface Mount| N.M.| –| –| 2mm×1.6mm| 2
LED1_A, LED1_B| 3-color LED| –| SMLP34RGB2W| Rohm| 1mm×1mm| 2
Q1_A, Q1_B| | –| RQ5E035BN| Rohm| SOT-346T| 2
R1_A, R1_B| Resistor, Surface Mount| 2.2kΩ| –| Rohm| 0603| 2
R2_A, R2_B, R3_A, R3_B, R4_A, R4_B| Resistor, Surface Mount| 1.8kΩ| –| Rohm| 0603| 6
R5_A, R5_B| Resistor, Surface Mount| 18kΩ| –| Rohm| 1005| 2
R6_A, R6_B| Resistor, Surface Mount| 3.6kΩ| –| Rohm| 1005| 2
R7_A, R7_B| Resistor, Surface Mount| 0Ω| –| –| 0603| 2
R8_A, R8_B| Resistor, Surface Mount| 51Ω| –| Rohm| 0603| 2
R9_A, R9_B| Resistor, Surface Mount| 510Ω| –| Rohm| 0603| 2
R10_A, R10_B| Resistor, Surface Mount| 220mΩ| –| Rohm| 1.2mm×2.0mm| 2
R11_A, R11_B| Resistor, Surface Mount| N.M.| –| –| 0603| 2
RSW1_A, RSW1_B| Resistor, Surface Mount| N.M.| –| Rohm| 1608| 2
RSW2_A, RSW2_B| Resistor, Surface Mount| 0Ω| –| Rohm| 1608| 2
U1_A, U1_B| | –| ML7661-311GDZ05BX| LAPIS Technology| P-WQFN40-0606-0.50-63| 2
U2_A, U2_B| LDO| –| BD00GC0| Rohm| HTSOP-J8| 2
X1_A, X1_B| | –| CX2016DB27120D0| Kyocera| 2.0mm×1.6mm| 2

Layout (Top View)

Reference evaluation data

Charging Profiles

Substrate Temperature

Note: The data shown is for reference only. They are not guaranteed values. Temperatures may vary depending on the actual operating environment.

Revision Histories

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