CJ910/CJ911

[nighthunter]

Hi everybody.

I am continuing my project and my goal is to use as much as possible ICs from ecus i have here. I want to use the supply IC CJ910/911 used in bosch MEG1.0 /1.1s. I will then hopefully redesign the rusefi back to the original MEG casing. I already doing some reverse engineering on this ecus. It uses CC195 for knock and CJ920 for power outputs. And BUZ100SL H brigdes for transmission motors.

My question is if there are any information on pinout/operation of CJ910/911? I cant find nothing on this parts. On the photo of PCB there are 30057 IGBTs desoldered, also the CJ91x and connectors.

[andreika]

if there are any information on pinout/operation of CJ910/911? I cant find nothing on this parts.

CJ910_CJ911.png (17.36 KiB) Viewed 5948 times

You need to search for "Bosch 30343":

Code: Select all

30343 = CJ911
System basis IC with following functions:
- 1 x ISO interface
- System: 5 V, Standby: 5 V, 5 V (operation), Sensors: 2x5 V
- Ignition, RPM-sensor (typ. glitch filter delay time: 12.5 µs), Sustaining control reset
- Switched battery: 1 x HSPS, Main relay control: 1 x LSPS, Signal drivers: 4 x LSPS, Ignition reset
- Overvoltage shutdown

In my ECU (ME7.5 8E0 909 557D):
1	GND	
2	GND	
3	
4	
5	
6	GND	
7	Throttle Poition Sensor:G79-2 ECU:73	ECU:73
8	+5V uC	
9	
10	
11	
12	
13	Throttle Poition Sensor:G185-1 ECU:72	ECU:72
14	
15	GND	
16	Motronics Engine Control Module (ECM) Power Supply Relay	ECU:21
17	+12.6V switched	test point
18	GND	


19	GND	
20	Fuse Box 30 bus (via diode)	ECU:62
21	ignition? (connected with 1k5 to ECU:3)	ECU:3
22	Fuse Box 30 bus	ECU:62
23	+5V uC	
24	+5V uC	
25	
26	
27	
28	+5V standby	
29	to Tx of micro	C167:TxD0
30	K-line via 2k5 and diode	ECU:43
31	to Rx of micro	C167:RxD0
32	
33	
34	
35	
36	GND

To get an idea what's inside that chip, take a look at the folowing datasheets:
1) Infineon TLE6361G
2) Bosch CY320
They are similar to CJ91x (but not the same).

[Dron_Gus]

1) Infineon TLE6361G
2) Bosch CY320
They are similar to CJ91x (but not the same).

Sorry for offtopic.
TLE6361 looks interesting. Don't you know where to get several (no fake). Digikey and Mouser don't have on stock.

[AndreyB]

Digikey and Mouser don't have on stock.

https://octopart.com/search?q=TLE6361
There is a minimum quantity of 28 for this order.

[Dron_Gus]

Digikey and Mouser don't have on stock.

https://octopart.com/search?q=TLE6361
There is a minimum quantity of 28 for this order.

Same situation for Russian suppliers. Minimum quantity is 19. eBay sellers give no faith.
A bit of googling gives me another interesting IC - TLE7368. While TLE6361 is overkill, TLE7368 looks good choise to replace TLE4267 and batch of LDOs currenty used in my design.