Searching for a spare/upgrade controller

[E-HP]

E-HP,
I looked on alibaba to see if I can the manufacturer of this controller,

I found this:

https://www.alibaba.com/product-detail/60-72v-70A-3000w-3500w130A-brushless_1600540287719.html

I messaged them and asked if regen braking is possible and PC programming,
They said NO to both questions.

Thanks, that's too bad, but I'm learning to live without regen, even though the range decrease is noticeable. Your link is consistent with this one I found, that also lists the max phase current as 240A which is impressive. The link I found describes it as FOC too.
https://retail.uumotor.com/product/80a-controller/

None of the links I've found so far mention anything about programming it, even though it appears to have a programming port. However, looking at the same website, there a several smaller programmable FOC controllers, including one that is capable to driving two BLDC motors. Similarly, they are half heat sink, so probably dissipate heat well, given they are decently spec'd.

This one is 50A and 120A max phase current. Not as small as something like a phaserunner, but 1/3 more phase current, so might be nice for a smaller, but not mini, controller with FOC, regen and programmable, but with fewer bells and whistles. Probably makes a good setup if you put a Cycle Analyst in front of it.
https://retail.uumotor.com/product/programmable-motor-controller-speed-close-loop-60v-50a-uart-function/

Here's the Dual motor BLDC controller, never saw this option before:
https://retail.uumotor.com/product/programming-24-48v-40a-close-loop-control-dual-drive-brushless-controller/

 

[gobi]

hmm, I saw that one but skipped it mentally as I was focused on the unit I bought


, I will ping the contact on alibaba again, maybe I can buy a couple of programmable one,
Dual controller for $160 (plus shipping) is not bad,

before I buy the programmable one, I will ask him to share with me the details user manual and function/features.

 

[gobi]

Detail pics of the inside, received mine yesterday.
The insulating tape was covering the water sealing silicone gasket, I trimmed it with a razor.

The Controller chip label laser was etched out.

I mustered some ES courage to take off the FET pressure plate to take pics of the FETs

CAPs = 100V
FET = SKST049N08N SkyMOS1 N-ET 85V, 4.1mΩ, 120A [Thanks Amberwolf]

FYI: One leg of a fet in mine is NOT all the way in, you can see it in the pic circled in RED.

 

[E-HP]

Detail pics of the inside, received mine yesterday.
The insulating tape was covering the water sealing silicone gasket, I trimmed it with a razor.

The Controller chip was the label laser etched out.

I mustered some ES courage to take off the FET pressure plate to take pics of the FETs

CAPs = 100V
FET =?? maybe 80v from my online research, could not find datasheet.

FYI: One leg of a fet in mine is NOT all the way in, you can see it in the pic circled in RED.

Hmmm, great catch on the FET leg. I think I'll be opening mine a 3rd time to get the output dialed in, so I'm going to inspect mine as well. I'm now leaning toward treating this as a disposable controller, since it's cheap and easy to replace.

Since winter is coming, I'd like to get it sealed up, so now I'm thinking of potting the whole thing with epoxy. When i have it open, I'm going to see where can drill a couple of holes in the plastic cover to inject it into. Realistically, if it ever blew, I wouldn't be trying to repair it or harvest any of its parts anyway.

 

[amberwolf]

FET =?? maybe 80v from my online research, could not find datasheet.

https://endless-sphere.com/forums/download/file.php?id=324545
EDIT: fixed to SKYSILICON SKST049N08N
(was incorrectly typed as SKYSILICON SKST048N08N)

Maybe related to this one (or could be totally different); only "similar" numbering I could find, and the crmicro company has this page
https://www.crmicro.com/Home/product/cs/Sn/
that includes skysilicon as part of their sales network

China Resources Microelectronics (Chongqing) Co.,Ltd
Tel：023-89865000 Fax：023-89865023
Address：No.25,Xiyong Ave.Sha Ping Ba District,ChongQing,P.R.China
Post Code：401331 Website：www.skysilicon.com

.
crst049n08n
https://www.fet.discoveree.io/Z2pkZ1JOb1puODFvZXJoU2pVaWFzUT09OjoxNg==/crst049n08n

CRST049N08N is a Silicon MOSFET rated at 85V, 150A, 0.0049Ω Rdson(max) in TO-220
Datasheet

Device Parameter Value feedback*
Manufacturer Name Crmicro
Manufacturer Package TO-220
(Through Hole, 3 Pins,
Thermalpad: Bottom
WxL: 10.10 x 15.50mm2)
Configuration Single
Channel N-Type
Material Silicon
BVDSS [V] 85
RDS(ON) typ, max [Ω] 0.0041, 0.0049
At VGS = 10V, TA = 25°C
ID max [A] 150
PD max [W] 189
QGS typ, max [nC] 19, na
QGD typ, max [nC] 17, na
QG Total typ, max [nC] 64, na
RthJA max [C/W] 58
RthJC max [C/W] 0.66
DiscoverEE Calculated Values
ID [A] Calc. @RthJA max
TJ=150°C, TA=25°C 14.8 (conservative)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @ System RthJA = °C/W, TJ=°C, TA=25°C 35.7 (realistic)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @RthJC max
TJ=150°C, TC=25°C 139.0 (ideal heatsink, Silicon limit)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
PD [W] Calc. @RthJA max
TJ=150°C, TA=25°C 2.2 (conservative)
PD [W] Calc. @ System RthJA = 10 °C/W, TJ=150°C, TA=25°C 12.5 (realistic)
PD [W] Calc. @RthJC max
TJ=150°C, TC=25°C 189.4 (ideal heatsink)

 

[E-HP]

CRST049N08N is a Silicon MOSFET rated at 85V, 150A, 0.0049Ω Rdson(max) in TO-220
Datasheet

Device Parameter Value feedback*
Manufacturer Name Crmicro
Manufacturer Package TO-220
(Through Hole, 3 Pins,
Thermalpad: Bottom
WxL: 10.10 x 15.50mm2)
Configuration Single
Channel N-Type
Material Silicon
BVDSS [V] 85
RDS(ON) typ, max [Ω] 0.0041, 0.0049
At VGS = 10V, TA = 25°C
ID max [A] 150
PD max [W] 189
QGS typ, max [nC] 19, na
QGD typ, max [nC] 17, na
QG Total typ, max [nC] 64, na
RthJA max [C/W] 58
RthJC max [C/W] 0.66
DiscoverEE Calculated Values
ID [A] Calc. @RthJA max
TJ=150°C, TA=25°C 14.8 (conservative)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @ System RthJA = °C/W, TJ=°C, TA=25°C 35.7 (realistic)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @RthJC max
TJ=150°C, TC=25°C 139.0 (ideal heatsink, Silicon limit)
Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
PD [W] Calc. @RthJA max
TJ=150°C, TA=25°C 2.2 (conservative)
PD [W] Calc. @ System RthJA = 10 °C/W, TJ=150°C, TA=25°C 12.5 (realistic)
PD [W] Calc. @RthJC max
TJ=150°C, TC=25°C 189.4 (ideal heatsink)

Hmm, looks like I should dial down the power a little with the Cycle Analyst.

 

[amberwolf]

BTW, I edited my post above to fix the p/n of what's actually in the controller--I looked at it today and somehow apparently I saw it as
SKST048N08N
but it is actually SKST049N08N
which is the same number that's on the CRST specs I'd found and posted/linked.

For grins I re-searched on the correct p/n and found a number of hits (which of course didn't show up yesterday):
https://en.sekorm.com/doc/2034438.html

I can't get the actual spec sheet because it requires you sign up via phone using a text message and code, but this is what's listed on the page above their "preview":

SKST049N08N, SKSS046N08N SkyMOS1 N-ET 85V, 4.1mΩ, 120A.pdf| Preview769 KBSkyMOS1 N-MOSFET,SKST049N08N,SKSS046N08N,CR MICRO
●Features
■Uses CRM(CQ) advanced SkyMOS1 technology
■Extremely low on-resistance RDS(on)
■Excellent QgxRDS(on) product(FOM)
■Qualified according to JEDEC criteria
Brand of Product： CR MICRO
Part#： SKST049N08N 、 SKSS046N08N
Product Category： SkyMOS1 N-MOSFET
Application： [ Battery management ][ UPS ]
Data Type： Datasheet
Safety & Environment Standards：
Operating Temperature：
Please see the document for details
Qualification Grade：
Qualification Approval：
Package： TO-263; TO-220
Language： English Chinese Japanese
Date of Creation： 2018-06-28
Version Number： Revison 2.0
Data Encoding：
Data Size： 769 KB

I was able to copy this out of their preview but it's not formatted:

Features Product Summary• Uses CRM(CQ) advanced SkyMOS1 technology• Extremelylow on-resistance RDS(on)• Excelent QgxRDS(on) product(FOM)• Whichifiand agreementsng to JEDEC criteriaApplications• Motor control and drive• Battery management• UPS (Uniinterruptble Power Supplies)85V4.1mΩ120AVDSRDS(on)ID Wafer Code WDB100% Avalanche Tested100% AvalancheTestedSKST049N08N SKSS046N08NPackage Marking and Ordering InformationPackingAbsolutely Highly RatedngsGate-Source voltagePower dissipatedon (TC = 25°C)Operating junction and storage temperatureVW189 PuntilTj , TstgAIDParameterDrain-source voltageContinuous drain currentTC= 25°C (Siliwith themWith)TC = 25°C (Package limit)TC= 100°C (Siliwith themWith)Pulsed drain current (TC = 25°C, tp limited by Tjmax)Symbol UnitV150 12098 VDSID pulseValue85480 A196 ±20endorseche energy, single pulse (L=0.5mH, Rg=25Ω)EAS(Note 1)VGSPart #SKST049N08NQty50pcsTape WidthN/AReel SitheyN/AMarking-PackageTO-220 TubeSKSS046N08N-TO-263 Tube N/A N/A 50pcs-55...+150mJ°C100% Avalanche Tested100% AvalancheTested※. Notes:1.EAS is tested at starting Tj = 25℃, L = 0.5mH, IAS = 28A, VGS = 10V. EAS(max)=784mJ under IAS(max)=56A and above Conditionns;100% AvalancheTested100% AvalancheTested©China Resources Microelectronics (Chongqing) Limited Page 1

China Resources Microelectronics (Chongqing) Co., Ltd.SkyMOS1 N-MOSFET 85V, 4.1mΩ, 120AThermal ResistanceElectrical Characteristic (at Tj = 25 °C, unless otherwise specified)Static CharacteristicVGate threshold voltageVGS(th )Zero gate voltage drain currentIDSSµAVDS=80V,VGS=0VTj=25°C- 0.05 1Tj=125°C- - 5VDS=VGS,ID=250uA2 3 4UnitDrain-source breakdown voltageValueBVDSSVGS=0V, ID=250uAParameterSymbolTest Conditionmin. typ. max.85RthJA°C/WMax97 - VParameterThermal resistancece, junction – case.Thermal resistancece, junction – amsoon(min. footprint)Symbol UnitRthJC0.66 58Dynamic CharacteristicVGS=0V, VDS=0V, f=1MHz-3.3 -OhVGS=0V, VDS=42.5V, f=1MHzpFVGS=10V, VDS=42.5V,ID=50A, f=1MHznCVds=42.5VId=10ARg=3.5ΩVgs=10V; (Note 2,3)ns- 54 --4027 -17 -SnAOutput CapacitanceCoss- 1207 -Input CapabletanceCiss-- 19 -Reverse Transfer CapacityanceCrss- 33 -Gate Total ChargeQG- 64 -Drain-source on-state resistanceRDS(on)TransconductancegfsVGS=10V, ID=50ATO-220- 4.1 4.9 TO-263- 3.8 4.6VDS=5V,ID=40A- 93 -Tj=125°C--5Gate-source leakage currentIGSSVGS=±20V,VDS=0V- 10 100Gate-Drain chargeQgd-28 --Gate-Source chargeQgsTurn-on delay timetd(on)26Gate resistanceRGTurn-off delay timetd(off)FallofmetfRise timetr- 47mΩ--GSDSf=1MHz-3.3 -OhGate resistanceRG©China Resources Microelectronics (Chongqing) Limit

 

[gobi]

Amberwolf, Thanks I updated my post.

I sent UU Motor another query for their other models, They have a few that are programmable and one seems to have REGEN.

 

[999zip999]

How about a Kelly will take a C.A. plug ?
Will they put one in at the factory ?