2016

Mediatek Pump Express Introduction

Outline

Pump Express Evolution

PE+ / PE+2.0

PE3.0

PE3.0 Q&A

Pump Express Plus Evolution

3

Pump Express Evolution 2014 2015 2016 2017

Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2

Efficiency

Ch

arg

e C

urre

nt

o 3A Single Charge o 4.5A Master/Slave Charge o Ƞ = 90% o Unidirectional Vbus communication

75% in 35min

o 3A Single Charger o 4.5A Master/Slave Charger o Ƞ = 92% o Unidirectional Vbus Communication

75% in 30min

o 5A+ Direct Charge o Ƞ= 95%+ o Bidirectional Type-C VDM Communication o 20+ Protection Schemes

3.0

75% in 20min

5/7/9/12V 5~20V, 0.5V/step

3~6V, CC/CV

Note1 : The adaptor of PE3.0 is capable of outputting CC (Constant Current) & CV (Constant Voltage) with fine resolution. Note2 : PE+2.0 & PE3.0 will co-exist in the market. PE+2.0 – for micro-B/type-C connector & lower cost PE3.0 – for type-C connector & higher charge current

Communication Protocols

MediaTek PE+ PE+2.0 PE+3.0 (Direct Charge)

MP Schedule Now Now Q3’16

TA Output 5V~12V

(Fixed 5/7/9/12V) 5V~20V

(0.5V per step) 3V~6V

(10-20mV per step)

Communication VBUS current modulation VBUS current modulation USB PD

Charge Current Single 3A/Parallel 4.5A Single 3A/Parallel 4.5A+ Direct Charge 5A+

Efficiency 90% 92% 95%+

Competitor’s Counter Tech

QC2.0 QC3.0 N/A

PE+ / PE+2.0

6

PE+2.0 Improvements

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Item Feature Description

1 Faster communication Reduce TA identification time from 2.1sec to 0.9s

2 Fine-grain voltage levels -5V-to-20V (step = 0.5V) -0.5V/step is good enough

Adjust adaptor voltage dynamically to optimize charging efficiency

3 Cable Impedance Measurement (Safety & Eff. Opt.)

Calculate cable impedance and manage charging behavior accordingly

State Machine

-8- P34

12.5V

20V

5V

WDT*0 time out

5.5V 6V 6.5V

19.5V 19V

Returned when WDT expired.

Change voltage directly by current pattern.

Change voltage one step sequentially by current pattern.

WDT time out

*0 Watch Dog Timer

Fig 1. State machine of PE+2.0 with 0.5V per step.

Fig 2. State machine of PE+.

Grade 1 TA: 5V~12V

Grade 2 TA: 5V~20V

Current Pattern – PE+

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Current Pattern – PE+ 2.0

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WDT

150ms

(E)

240ms

Frame

100ms 100ms50ms 100ms 50ms

(D) (D) (F) (H)(G) (G) (G)(D) (D)

bit0bit1bit2bit3bit4

100ms 100ms50ms 50ms

(G)

50ms

[4:0]=00100b

Logic 0 (G) (D)

100ms50ms

Logic 1 (F) (H)

100ms 50ms

Define the Logic 0 and Logic 1 for bit4~bit0.

0.9s

WDT(E)(D) (D) (G) (D)(G) (G) (D)(G) Change VBUS to 5.5V

WDT(E)(G)(F) (D)(H)

≈

Change VBUS to 20V(F) (H)(F) (H)(F) (H)

DET(E) Adaptor healthy self-testing

Disable cable drop compensationDET(E)(F) (H) (F) (H)(F) (H)(F) (H) (F) (H)

(G) (D)

(F) (H) (F) (H)(F) (H)(F) (H) (D)(G)

Current Pattern – PE+ 2.0 Lookup Table

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00000B 5.5 V

00001B 6 V Change Output Voltage

00010B 6.5 V

00011B 7 V

00100B 7.5 V

00101B 8 V

00110B 8.5 V

00111B 9 V

01000B 9.5 V

01001B 10 V

01010B 10.5 V

01011B 11 V

01100B 11.5 V

01101B 12 V

01110B 12.5 V

01111B 13 V

10000B 13.5 V

10001B 14 V

10010B 14.5 V

10011B 15 V

10100B 15.5 V

10101B 16 V

10110B 16.5 V

10111B 17 V

11000B 17.5 V

11001B 18 V

11010B 18.5 V

11011B 19 V

11100B 19.5 V

11101B 20 V

11110B N/A N/A Adaptor Healthy Self-Testing

11111B N/A N/A Disable Cable Drop Compensation

Unit FeatureDigital Code

bit5~bit0 [4:0]

Absolute

Voltage

Table 2. The look-up table of current patterns.

PE+2.0 vs. QC3.0 PE+2.0 QC3.0 Remark

Charger IC RT9466 (bq25892/6 p2p) RT9467 (bq25890 p2p)

SMB1351 Q: single source MTK : multi source

Efficiency ~89%

85-86%

Safety Do cable imp. Calculation. Protect cable from burnout

N/A Patent pending

Speed 27% faster - Co-develop with Mitsumi (introduce in page 16)

❶

❷

❸

❶ Charger IC Efficiency Measurement

RT9466

RT9466: better efficiency @2-3A Mass Production!

Poor RON Low RON

3rd Party

3rd Party

3rd Party Competitor

❷ Cable : Impedance/Safety Detection

Copyright © MediaTek Inc. All rights reserved. -14-

QC3.0 Algorithm

①Set desired charge current ② Increase Vbus until meet the charge current. ③ However, there is no way to know cable impedance/quality.

Adjust Vbus according to cable impedance/quality

MTK PE+2.0

Adaptor Phone

Type-C 3A Cable

USB 1.8A Cable

5.5V/3A 5V/3A

5V/3A 6.0V/3A

❷ Cable Impedance Measurement Cable R (Ω)

= (V_phone_a – V_phone_b) / 0.45A

[Cable Impedance Measurement]

(Assume TA compensation = 250mV@2A)

TA Cable Compensation Disabled

Cable R = 0.3Ω

TA Cable Compensation Enabled

Cable R = 0.175Ω

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VBUS

IBUS Ib 900mA

Ia 450mA

V_phone_a

V_phone_b

V_adaptor_a V_adaptor_b

❸ Accurate Charge Path Impedance Compensation, extending CC period

Copyright © MediaTek Inc. All rights reserved. -16-

Accurate cell voltage can be measured inside the pack Over-estimated

cell voltage

4.35V

3.9V

CC Extension

MW3757 MW3793

MW3757: Protection + Monitor MW3793: Monitor (Exclusive for MediaTek)

PE+2.0 AC/DC & Charger IC Vendors iWatt (Dialog)

– iW1782 (primary side) + iW673 (synchronous rectifier, option for better efficiency)

On-bright (OB)

– OB2632+OB2607

– 奥海 (Aohai)/百俊达/科讯 (Kosun)

Fairchild – FAN602 (primary side) + FAN6290M (secondary side)

– Salcomp/辰陽 (Chenyang Electron)

Pump Express 3.0

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PE 3.0 Advantage

Power Dissipation -60% The power dissipation can be reduced significantly by using

direct charge (without loss caused by switching charger)

Design for Safety Bi-directional communication between TA and phone Over 20 protection mechanisms

75% in 20 min. Utilize Step Charge and/or high-C-rate battery

5A+ Charging

Standardized Eco-system Type-C/PD cable, connector. Share the same eco-system

among PC/NB/monitor/phone

PE 3.0 System Concept

(36V)

USB PD VDM communication / Type-C 5A Cable

25W : 43mm x 43mm x 25mm (will be smaller for MP product)

AP battery

Switching Charger

VBAT VSYS

VBUS

D+/D-

CC1/CC2 Type-C/PD

I2C

Type

-C C

on

ne

ctor

Direct Charge Path

Conventional Charge Path

PE 3.0 Phone Impedance Control

R_CON1 R_CABLE R_CON2R_SW

R_C

From

VBUS

ICHG

ICHG

ICHG

ICHG

ICHG

ICHG

5.7mΩ 5.7mΩ

5mΩ

20mΩ

Totally

7 contacts

Totally

7 contacts

77.1mΩ

AWG22//

AWG28

100cm

1.For VBUS, (1 AWG22,52.9mΩ)//(3 AWG28,141.9mΩ).

2.For GND, (1 AWG22,52.9mΩ)//(3 AWG28,141.9mΩ).

16mΩ

RPCB

4mΩ

5mΩ

R_FG

R_Pcb_bat

5mΩ

R_p

Cell

Battery

Protector

30mΩ

R_b

5A

TA

Cable/Connector Phone

Battery

O Impedance (R) minimization is critical for power dissipation (Pd) reduction because Pd is in proportion to I2R. O A high-C-rate cell (usually ≥ 1.5C) with low DCR is a must. . However, you have to tradeoff C-rate and cell energy density.

Design for Safety

Subject TA Cable/

Connector Charger

Battery BIF with AP

Battery Protector

Identification

OVP

OCP

Thermal

Watchdog Timer

Impedance detect

PD adaptor

Battery AP

BIF Charger

Bi-direction

communication

Over 20 Protection Mechanisms

PE 3.0 AC/DC Vendor

Richtek – RT7786 (Primary) + RT7207 (Secondary)

Power Makers

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TA Vendors Contact Person Phone Mobile Email

Salcomp 賽爾康 Lenny Lin 0920 363 552 Lenny.Lin@salcomp.com

Phihong Technology Co., Ltd. 飛宏 陳湘怡 Elaina Chen (886)-3-3277288 (TW) (886)972-637-968 (CN) (86)13910483959

elaina_chen@phihong.com.tw

SOLUM Co. Ltd. 搜路研電子 王秋東 Eric Wang (86) 10 8478 5696 (86) 152 0140 8181 eric.wang@solu-m.com

FSP 全漢 賴怡秀 Stacy (886) 3-3759-888 # 1225

(TW) (886)960034264 stacy@fsp-group.com.tw

Aohai 奧海

Huntkey 航嘉

Connector/Cable Vendor Info.

深圳捷訊光電科技 (Sunyking Technology Co. Ltd)

Cable: SK-USB31CC001

Connector: SK-CONNCF01

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Connector/Cable Vendors Contact Person Phone Email

今浩

Ji-Haw Industrial Co., Ltd 賴建興 (Joe Lai)

Taiwan: +886_919_283_235 China: +86_186_824_270_15

joe@sunyking.com

PE 3.0 Target

Connector : Type-C@phone

Cable : A-2-C or C-2-C

Communication : USB PD (VDM)

Create a Low-voltage fast charge standard based on USB PD. Share same supply chain with PC/Monitor/NB/Tablet.

Copyright © MediaTek Inc. All rights reserved.

-25-

Q&A

26

PE3.0 FAQ (1/3)

Q: What is PE3.0? – A: It’s charge technology routing charge current directly from Adaptor to Battery.

Q: What is the advantage of PE3.0? – A: Much better charge efficiency (95%+), making high charge current possible.

(Traditional high-voltage fast charge technology ~ 90%)

Q: What is the required HW of PE3.0? – (1) 3-6V/5A+ Adaptor with USB PD VDM capability – (2) Smartphone with Type_C connector and USB PD VDM capability – (3) 5A cable – (4) A Battery with high Charge-Rate (C-rate).

• Example #1 : 5A charge current / 2500mAh battery = 2C (emerging) • Example #2 : 5A charge current / 3333mAh battery = 1.5C (commercial available)

– (5) Low-impedance design, including connector, cable, switch for charge, PCB, battery.

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PE3.0 FAQ (2/3)

Q: How much does it cost? – (1) In the long run, type-C is the standard. So, assuming you already have type-C 3A cable, you

just need to upgrade to 5A cable. – (2) And, you must pay for adaptor with higher power (e.g. 15W 25W) & USB PD capability – (3) Phone: no cost up

Q: When is the mass production schedule of PE3.0? – A: Ready for mass production

Q: What is the target platform of PE3.0? – Mediatek X-series and P-series. For middle-end, it’s by request.

Q: Is PE3.0 safe? – Over 20 protection mechanisms are designed for ensuring safety of PE3.0.

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PE3.0 FAQ (3/3)

Q: Can PE3.0 support communication via D+/D-?

– A: No, only USB PD

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