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Low-Power Portable PMICs

Driven by the needs of the rapidly growing IoT, wearable, & smart home markets which need small and efficient power solutions, Dialog offers a family of low power portable PMICs. These devices extend the battery life of these systems while fitting into a compact form factor.  In addition, the ubiquity of sensors integrated into a multitude of wearable and miniaturized IoT devices demands unmatched ultra-low-noise LDOs enabling superior sensor output quality under difficult conditions.

woman smartwatch

Features

Highly integrated for lower BOM and reduced board assembly costs

Nanoamp quiescent current for all dc/dc outputs

Dynamic voltage control capability

I2C interface for control & monitoring

Simple, digital programming using Dialog’s SmartCanvas™ GUI for fast, easy design reuse

Multi-channel ultra -low-noise LDO supplies for sensor systems like cameras

Benefits

Extended battery life

25% reduction in PCB footprint compared to discrete solutions

Programmable power states optimize performance in operating modes and extend battery life in storage modes

Design flexibility through configurability

Future proofing for new technology MCUs with 0.6V min buck output voltage

Future proofing for new technology batteries with 2.5V min input voltage

Superior sensor performance through ultra-low-noise supply channels

4-Phase Buck with Remote Sense and Phase Shedding

2-Phase Dual Buck with Remote Sense and Phase Shedding

Product Portfolio
Product Description Application
DA9070 Highly Integrated PMIC for Wearables and Home Automation Fitness Trackers | Smartwatches | Wireless Headphones | Portable Medical | Personal Health Monitors | Portable Gaming | Wireless Earbud Cradles | Home Automation
DA9073 Highly Integrated PMIC for Wearables and Home Automation Fitness Trackers | Smartwatches | Wireless Headphones | Portable Medical | Personal Health Monitors | Portable Gaming | Wireless Earbud Cradles | Home Automation
DA9230
Nanopower buck regulator for low power connected devices
Wearables – wrist wear, hearables, pet wearables | Smart devices - thermostats and door locks | Smoke detectors | Portable medical devices | Remote sensors | High efficiency, low power applications 

DA9231

Nanopower PMIC for low power connected devices
Wearables – wrist wear, hearables, pet wearables | Smart devices - thermostats and door locks | Smoke detectors | Portable medical devices | Remote sensors | High efficiency, low power applications 
DA9232 Configurable, high efficiency buck regulator for GPS sub-systems in wearable devices requiring ultra-low voltage ripple Fitness Trackers | Smartwatches | Wireless Headphones | Portable Medical | Personal Health Monitors | Portable Gaming | Wireless Earbud Cradles | Home Automation
DA9233 Configurable, high efficiency PMIC for GPS sub-systems in wearable devices requiring ultra-low voltage ripple Fitness Trackers | Smartwatches | Wireless Headphones | Portable Medical | Personal Health Monitors | Portable Gaming | Wireless Earbud Cradles | Home Automation
SLG51000 Programmable Multi-Channel LDO CMIC with High PSRR, Low Noise Advanced Sensor Systems | High End Camera Module | Smartphones | Digital Cameras | Security Cameras | Smart Imaging Devices

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Product ID Description Vin Min (V) Vin Max (V) VBUS Max (V) Iout Max (A) (major rails) Package # Total step-down DC/DC converter channels # integrated step-down DC/DC converter channels # step-down DC/DC CONTROLLER channels # buck-boost DC/DC converter channels # step-up DC/DC converter #LDOs # Integrated Load Switch channels (ext. Power Switch Control) Multi-Phase support USB-Power Management Integrated battery charger Automotive rating Low-Noise/High PSRR optimized channels General Purpose I/Os Battery Interface Add. Features Matching processor platform Category Documents
                                                 
DA6021 Highly integrated Power Management IC for New Generation Intel Atom Processor 2.7 4.5 5.5 24.9 FCBGA 325 11 x 6 ㎟ 6 6 - 2 1 6 11 (9) - yes - - - 16 yes multi-channel ADC PWM output 5 temerature sens inputs Intel Atom Z3000 PMICs SoC PMICs Documentation
DA6102 6 Channel High Efficiency PMIC For 2-Cell Systems 4.5 11.5 - 6.8 WLCSP 56 2.98 x 3.38 ㎟ 3 2 1 1 - 2 2 - - - - - - - - - PMICs Documentation
DA9024 Quad 1.2A Buck System PMIC with Audio Subsystem - 4.4 - 4.8 WLCSP 108 3.6 x 4.8 ㎟ 4 4 - - - 20 - - - - - 1 LDO - - Class G headphone driver Class D speaker driver Back up battery charger RTC Ingenic JZ4775 PMICs SoC PMICs Documentation
DA9053 System Core PMIC with High Efficiency USB Power Manager and integrated charger - 5.5 12 4 VFBGA 169 7 x 7 ㎟ VFBGA 169 11 x 11 ㎟ 4 4 - - 1 10 - - yes 1.8A DA9053-A 6 LDOs 16 yes, integrated charger ADC with touch screen IF Boost with LED drivers Charger Backup battery charger RTC NXP i.MX 53 NXP i.MX 6 NXP i.MX 6 Solo NXP i.MX 6 SoloLite NXP i.MX 6 DualLite PMICs SoC PMICs Charger PMICs Documentation
DA9053-A System Core PMIC with High Efficiency USB Power Manager and integrated charger - 5.5 12 4 VFBGA 169 7 x 7 ㎟ VFBGA 169 11 x 11 ㎟ 4 4 - - 1 10 - - yes 1.8A yes 6 LDOs 16 yes, integrated charger ADC with touch screen IF Boost with LED drivers Charger Backup battery charger RTC NXP i.MX 53 NXP i.MX 6 NXP i.MX 6 Solo NXP i.MX 6 SoloLite NXP i.MX 6 DualLite PMICs Automotive PMICs Documentation
DA9061 System PMIC for Single or Dual-Core Application Processors 2.7 5.5 - 6 QFN 6 x 6 ㎟ 3 3 - - - 4 - - - - DA9061-A 3 LDOs 5 - - NXP i.MX 6 NXP i.MX 6 Solo NXP i.MX 6 SoloLite NXP i.MX 6UL NXP i.MX 6ULL Xilinx Zync UltraScale+ Qualcomm (CSR) Atlas PMICs SoC PMICs Documentation
DA9061-A System PMIC for Single or Dual-Core Application Processors 2.7 5.5 - 6 QFN 6 x 6 ㎟ 3 3 - - - 4 - - - - yes 3 LDOs 5 - - NXP i.MX 6 NXP i.MX 6 Solo NXP i.MX 6 SoloLite NXP i.MX 6UL NXP i.MX 6ULL Xilinx Zync UltraScale+ Qualcomm (CSR) Atlas PMICs Automotive PMICs Documentation
DA9062 System PMIC for Single or Dual-Core Application Processors 2.8 5.5 - 8.5 QFN 6 x 6 ㎟ 4 4 - - - 4 - yes - - DA9062-A 3 LDOs 5 - Backup battery charger RTC Xilinx Zync UltraScale+ Xilinx Artix-7 and Zynq 7000 Family Xilinx Spartan -7 Family Qualcomm (CSR) Atlas PMICs SoC PMICs Documentation
DA9062-A System PMIC for Single or Dual-Core Application Processors 2.8 5.5 - 8.5 QFN 6 x 6 ㎟ 4 4 - - - 4 - yes - - yes 3 LDOs 5 - Backup battery charger RTC Xilinx Zync UltraScale+ Xilinx Artix-7 and Zynq 7000 Family Xilinx Spartan -7 Family Qualcomm (CSR) Atlas PMICs Automotive PMICs Documentation
DA9063 System PMIC for Multi-Core Application Processors 2.8 5.5 - 12 VFBGA 100 8 x 8 ㎟ TFBGA 100 8 x 8 ㎟ 6 6 - - - 11 - yes - - DA9063-A 3 LDOs 16 - ADC Backup battery charger RGB-LED driver RTC NXP i.MX 6 NXP i.MX 6 Dual NXP i.MX 6 Quad NXP i.MX 6 Quad+ NXP i.MX 8M Mini Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs SoC PMICs Documentation
DA9063-A System PMIC for Multi-Core Application Processors 2.8 5.5 - 12 VFBGA 100 8 x 8 ㎟ TFBGA 100 8 x 8 ㎟ 6 6 - - - 11 - yes - - yes 3 LDOs 16 - ADC Backup battery charger RGB-LED driver RTC NXP i.MX 6 NXP i.MX 6 Dual NXP i.MX 6 Quad NXP i.MX 6 Quad+ NXP i.MX 8M Mini Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs Automotive PMICs Documentation
DA9063L System PMIC for Multi-Core Application Processors 2.8 5.5 - 12 VFBGA 100 8 x 8 ㎟ TFBGA 100 8 x 8 ㎟ 6 - - - - 5 - yes - - DA9063L-A 1 LDOs 16 - ADC RGB-LED driver Watchdog timer NXP i.MX 6 Dual NXP i.MX 6 Quad Xilinx Artix-7 FPGA and Zynq-7000 SoC Renesas R-Car 2, R-Car 3 Telechips Dolphin+ (TCC8030) (Auto only) PMICs SoC PMICs Documentation
DA9063L-A System PMIC for Multi-Core Application Processors 2.8 5.5 - 12 VFBGA 100 8 x 8 ㎟ TFBGA 100 8 x 8 ㎟ 6 - - - - 5 - yes - - yes 1 LDOs 16 - ADC RGB-LED driver Watchdog timer NXP i.MX 6 Dual NXP i.MX 6 Quad Xilinx Artix-7 FPGA and Zynq-7000 SoC Renesas R-Car 2, R-Car 3 Telechips Dolphin+ (TCC8030) (Auto only) PMICs Automotive PMICs Documentation
DA9066 System PMIC and Audio CODEC for Multi-Core Application Processors 2.5 4.4 - 7.2 WLCSP 168 5.8 x 4.8 ㎟ 6 - - - - 20 - yes - - - 1 LDO - - 24-bit Audio CODEC 4 analog inputs 2 Class G headphone driver 2 Class D speaker driver ADC Backup battery charger RTC - PMICs Documentation
DA9068 System PMIC for Multi-Core Application Processors 2.5 5.0 - 8.1 WLCSP 154 4 x 6 ㎟ 8 - - - - 25 - yes - - - 3 LDOs 4 - ADC Backup battery charger RTC - PMICs Documentation
DA9070 Highly Integrated Low-Power PMIC with SW Fuel-Gauge support 2.5 5.5 22 0.3 WLCSP 42 3 x 2.65 ㎟ 1 1 - - 1 3 - - yes 0.5A - - - yes, integrated charger Software Fuel-Gauge support - PMICs Charger PMICs Low-power Portable PMICs Documentation
DA9072 Highly Integrated Low-Power PMIC 2.5 5.5 22 0.3 WLCSP 42 3 x 2.65 ㎟ 1 1 - - 1 3 - - yes 0.5A - - - yes, integrated charger Software Fuel-Gauge support - PMICs Charger PMICs Low-power Portable PMICs Documentation
DA9073 Highly Integrated Low-Power PMIC 2.5 5.5 22 0.3 WLCSP 42 3 x 2.65 ㎟ 1 1 - - 1 3 - - yes 0.5A - - - yes, integrated charger - - PMICs Charger PMICs Low-power Portable PMICs Documentation
DA9121 Single channel 10A Dual-phase PMIC 2.5 5.5 - 10 WLCSP 24 2.5 x 1.7 ㎟ 1 1 - - - - - fixed - - - - 5 - Programmable GPIOs - PMICs Documentation
DA9122 Dual channel 2x 5A PMIC 2.5 5.5 - 10 WLCSP 24 2.5 x 1.7 ㎟ 2 1 - - - - - - - - - - 5 - Programmable GPIOs - PMICs Documentation
DA9130 Single channel 10A Dual-phase PMIC 2.5 5.5 - 10 FC-QFN 3.3 x 4.8 ㎟ 1 1 - - - - - fixed - - DA9130-A - 5 - Dynamic voltage control Programmable GPIOs - PMICs Documentation
DA9131 Dual channel 2 x 5A Single-phase PMIC 2.5 5.5 - 10 FC-QFN 3.3 x 4.8 ㎟ 2 2 - - - - - - - - DA9131-A - 5 - Dynamic voltage control Programmable GPIOs - PMICs Documentation
DA9132 Dual channel 2 x 3A Single-phase PMIC 2.5 5.5 - 6 FC-QFN 3.3 x 4.8 ㎟ 2 2 - - - - - - - - DA9132-A - 5 - Dynamic voltage control Programmable GPIOs - PMICs Documentation
DA9130-A Single channel 10A Dual-phase PMIC 2.5 5.5 - 10 FC-QFN 3.3 x 4.8 ㎟ 1 1 - - - - - fixed - - - - 5 - Dynamic voltage control Programmable GPIOs - PMICs Automotive PMICs Documentation
DA9131-A Dual channel 2 x 5A Single-phase PMIC 2.5 5.5 - 10 FC-QFN 3.3 x 4.8 ㎟ 2 2 - - - - - - - - - - 5 - Dynamic voltage control Programmable GPIOs - PMICs Automotive PMICs Documentation
DA9132-A Dual channel 2 x 3A Single-phase PMIC 2.5 5.5 - 6 FC-QFN 3.3 x 4.8 ㎟ 2 2 - - - - - - - - - - 5 - Dynamic voltage control Programmable GPIOs - PMICs Automotive PMICs Documentation
DA9210 Single channel 12A Quad-phase PMIC 2.8 5.5 - 12 WLCSP 48 2.3 x 3.5 ㎟ VFBGA 42 4.8 x 5.6 ㎟ 1 1 - - - - - fixed - - - - - - Expandable with 2nd DA9210 Renesas R-Car M2 Renesas R-Car H2 Xilinx Zynq UltraScale+ MPSoC (ZU3CG, ZU9EG, ZU19EG) PMICs SoC PMICs Documentation
DA9211 Single channel 12A Quad-phase PMIC 2.8 5.5 - 12 WLCSP 42 2.5 x 2.85 ㎟ 1 1 - - - - - fixed - - - - - - - - PMICs Documentation
DA9212 Dual channel 2x 6A Dual-phase PMIC 2.8 5.5 - 12 WLCSP 42 2.5 x 2.85 ㎟ 2 2 - - - - - fixed - - - - - - - - PMICs Documentation
DA9213 Single channel 20A Quad-phase PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 1 1 - - - - - fixed - - DA9213-A - 3 - - Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs SoC PMICs Documentation
DA9213-A Single channel 20A Quad-phase PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 1 1 - - - - - fixed - - yes - 3 - - Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs Automotive PMICs Documentation
DA9214 Dual channel 2 x 10A Dual-phase PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 2 2 - - - - - fixed - - DA9214-A - 3 - - Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs SoC PMICs Documentation
DA9214-A Dual channel 2 x 10A Dual-phase PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 2 2 - - - - - fixed - - yes - 3 - - Xilinx Zynq UltraScale+ MPSoC Renesas R-Car 2, R-Car 3 (Auto Only) PMICs Automotive PMICs Documentation
DA9215 Multi channel 1x 15A, 1x 5A PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 2 2 - - - - - fixed - - DA9215-A - 3 - - Xilinx Zynq UltraScale+ MPSoC PMICs SoC PMICs Documentation
DA9215-A Multi channel 1x 15A, 1x 5A PMIC 2.8 5.5 - 20 WLCSP 66 2.5 x 4.5 ㎟ VFBGA 3.55 x 5.75 ㎟ 2 2 - - - - - fixed - - yes - 3 - - Xilinx Zynq UltraScale+ MPSoC PMICs Automotive PMICs Documentation
DA9217 Single channel 6A Dual-phase PMIC 2.5 5.5 - 6 WLCSP 24 1.7 x 2.4 ㎟ 1 1 - - - - - fixed - - - - 4 - - Renesas R-Car 2, R-Car 3 PMICs SoC PMICs Documentation
DA9220 Dual channel 2x 3A Single-phase PMIC 2.5 5.5 - 6 WLCSP 24 1.7 x 2.4 ㎟ 1 1 - - - - - fixed - - - - 4 - - - PMICs Documentation
DA9223-A Single channel 16A Quad-phase PMIC 2.8 5.5 - 16 TFBGA 66 5 x 9 ㎟ 1 1 - - - - - fixed - - yes - 3 - - Renesas R-Car 2, R-Car 3 PMICs SoC PMICs Automotive PMICs Documentation
DA9224-A Dual channel 2x 8A Dual-phase PMIC 2.8 5.5 - 16 TFBGA 66 5 x 9 ㎟ 2 2 - - - - - fixed - - yes - 3 - - Renesas R-Car 2, R-Car 3 PMICs SoC PMICs Automotive PMICs Documentation
DA9230 Low-power portable PMIC 2.5 5.5 - 0.3 WLCSP 12 1.25 x 1.65 ㎟ 1 1 - - - - - - - - - - 1 - - - PMICs Low-power Portable PMICs Documentation
DA9231 Low-power portable PMIC 2.5 5.5 - 0.3 WLCSP 12 1.25 x 1.65 ㎟ 1 1 - - - 1 - - - - - - 1 - - - PMICs Low-power Portable PMICs Documentation
DA9232 Low-power, ultra-low riple PMIC 2.5 5.5 - 0.06 WLCSP 12 1.25 x 1.65 ㎟ 1 1 - - - - - - - - - 1 DC/DC buck 1 - - - PMICs Low Noise PMICs Low-power Portable PMICs Documentation
DA9233 Low-power, ultra-low riple PMIC 2.5 5.5 - 0.06 WLCSP 12 1.25 x 1.65 ㎟ 1 1 - - - 1 - - - - - 1 DC/DC buck 1 LDO 1 - - - PMICs Low Noise PMICs Low-power Portable PMICs Documentation
DA9313 High-efficiency capacitive DC-DC buck converter 5 10.5 20 10 WLCSP 43 2.8 x 3.5 ㎟ 1 1 - - - - - fixed - - - - 2 - Capacitive down-converter - PMICs Switched Capacitor Converter Documentation
PV88080 High-voltage buck converter PMIC 4.75 5.25/26 - 20 QFN 32 5 x 7 ㎟ 4 3 1 - - - - - - - - - 2 - - - PMICs Documentation
PV88090 High-voltage buck converter PMIC 4.75 5.25 - 13.9 QFN 30 4.5 x 7 ㎟ 3 3 - - - 2 - - - - - - - - - - PMICs Documentation
SLG51000 Low noise, high PSRR PMIC 1.7 5.0 - 1.5 WLCSP 20 1.68 x 2.1 ㎟ - - - - - 7 - - - - - 7 LDOs 6 - - - PMICs Low Noise PMICs Low-power Portable PMICs Documentation

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Product Briefs and Summaries
Name Date Version
DA9231 Product Brief (569.23 KB) 01/01/2017 1.0
Datasheets
Name Date Version
DA9070 Datasheet (2.94 MB) 08/11/2018 3.0
Application notes
Name Date Version
AN-SW-121 Power Profile Manager and SOCF (1.68 MB) 06/11/2018 1.6
AN-SW-125 SOCF Application (157.53 KB) 28/02/2019 1.0
Schematics
Name Date Version
DA9070 Evaluation Board Schematic (1.54 MB) 27/07/2020 3.0
DA9070 PCB (1.79 MB) 01/07/2018 3.0
User guides and manuals
Name Date Version
UM-PM-039 Fuel Gauge Development Kit (2.15 MB) 28/10/2018 2.1
General
Name Date Version
DA9070 BOM (118.46 KB) 31/07/2018 3.0
SW-PM-103 SOCF Application Release Notes (157.75 KB) 28/02/2019 1.0

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Back to results

1 year ago

DA9061 shuts off Buck3 without reason

Posted by TKL 10 points 10 replies
0 upvotes

Hi,

in a new product we use the DA9061-66 with an iMX6ULL. The product is finished and we already had market launch.

Generally everything works fine (passed all EMI tests with above the norm levels without problems, no problems during our development phase) but unfortunately in our long time tests we experience problems. After ~1-21 days on some of our devices we see that the DA9061 shuts off the Buck3 regulator which supplies our DDR3 RAM (we use one 16-Bit DDR3 IC). This leads to a freezing device from which there is no other way out than turning the power off and on again. So market launch is stopped until we resolve the problem.

At the moment we have no idea why it happens.

Here is what we already tried:

- We monitored that there are no telegrams on I2C which shut off the regulator when the device has a failure.

- On a device in failure mode, we read out the registers of the DA9061 with the development board, I will attach the file to this post as .pdf file, but it is a .txt file. We found nothing unusual. Buck3 is enabled. Maybe we overlooked something.

- On this failing device we monitored the current on the Buck 3 rail and there was no overcurrent event.

- Vref of the DA9061 on device in freeze was 1,19V

- Vcore of the DA9061 was 2.5V

- Only disconnecting the power seems to get the DA9061 back to normal work

- It seems totally random when it happens. On one device it happened after 30 minutes, next run after 20 days. Same software, same environment and so on

- We tried to force the error with different approaches but until now we didn't find a way to reproduce it. It only happens completely random, but it seems as if it always happens on the same devices.

- Our system logs (we use Linux) don't show anything. The system just stops without any error message probably when the RAM voltage fails. Until now we didn't get a trigger to the falling voltage, we are still trying to. Its a bit of a problem with the long time between the error occurence.

At the moment the most plausible explanation to us is that the DA9061 chips on this devices are somehow damaged.

We already submitted schematics and layout to Dialog but got no feedback to them now for 24 days, which is very disappointing to me.

Has anyone here ever had a comparable thing with this PMIC or this PMIC family? We are at a dead end here as it seems.

 

Thank you very much,

Best regards,

Torben

Attachment Size
Register Dump of device in freeze 4.87 KB

1 year ago

ED_Dialog

Hello Torben,

I will reach out directly to you.

Kind regards,
Elliott 

1 year ago

Hi Elliott,

looking forward to it.

1 year ago

Florian Harnacke 0 points

Hello Torben,

we are in a very similar situation as you are. We are using a DA9063 device in a product that will be released in a few weeks.

In some products the DA9063 devices now show the same behavior as you already described - they suddenly shut-off the BUCK-Peri DCDC after it has been running normally for several days.

Our investigations results are as follows:

- The DA9063 internal logic/sequencer seems to be still running as nRESET pin and other voltages remain active while BUCK_PERI is turned off

- No I2C communication with the DA9063 when the BUCK-Peri DCDC is shut-off (one thought was, that the regulator is switched off via I2C)

- We connected an I2C sniffer to the devices that had switched off the BUCK_PERI regulator to read out the status and control registers:

  • BPERI_CONT (0x25): 0x01

    • according to the register content, the regulator should be running
    • we measured 380mV remaining voltage at the output
    • when we write a 0x00 to BPERI_CONT the voltage drops to 200mV -> PullDown is enabled when BUCK_PERI is disabled
    • when we now write 0x01 to BPERI_CONT the regulator turns on again with its correct output voltage (even on devices that switched the off the DCDC before)
  • Comparing all status and interrupt registers we found now unusual register content. The comparison to a working device showed no difference in the register contents.

- After a powercycle BUCK-Peri is working correctly again

Until now we have not been able to force the failure.

- We applied different loads and overload to the DCDC (including sudden load steps)

- We applied external voltages to the device (below and above the DCDC output voltage)

 

To answer your question Torben, yes we see the almost exact same behavior as you described with a device of the same family. And we are running out of ideas for the further investigation.

 

@Eliot: I would appriciate very much if we could get in contact and work on a solution toghether. This is a very serious issue for as as we are very close to the release of our product.

Thank you very much for your help.

Best regards

Florian

 

1 year ago

Hi Florian,

that sounds very much like a comparable problem, except we do not measure any voltage left on the disabled regulator, this seems different.

We are still working on the problem here. No luck forcing the error until now here either.

Best regards

Torben

1 year ago

ED_Dialog

Hello Florian,

I will reach out directly to you.

Kind regards,

Elliott 

1 month ago

ageisreiter 15 points

Hello together,

I think we have nearly the same problems. Have you already found a solution in the meantime?

Problem description:

We are using the DA9061 on our i.MX6ULL based System On Module. 

There we have SOM’s with the DA9061 which are working without problems, but some device switch of the buck2 (used for 3V3 IO voltage) without any reason after some time. We have some devices where this happens after some hours, next run several days or weeks and most of the devices doesn’t have the problem. The test software doesn’t use the Linux PMIC driver. This means we have no communication between host CPU and the PMIC, but the problem occurs anyway.

Within the Freeze condition we measured ~0,8V at buck2. But all other voltage rails are still alive at this condition:

Buck1 = Core voltage = 1,4V

Buck3 = DDR voltage = 1,35V

 

Best regards,

Andreas

1 month ago

Hi,

sounds like the same problem. The solution for us was to switch the mode from auto to synchronous mode / PWM. In this settings we had no problems anymore. You might see an increased radiated EMI because of this change.

Generally we could reproduce the problems only on a few chips. We had 150 test devices running and only on one the problem was reproduceable within a reasonable time (<48h). On this one we couldn't see the problem again after the change (tested for a month). The device is in the market now for 1 year and we have no problems with it.

Best regards,

 

Torben

1 month ago

ageisreiter 15 points

Hi Torben,

many thanks to your fast answer. 

Yes, I think it is the same problem. We did tests with 25 devices. Two of the lot had the problem, but it tooks 2 weeks with the first device and more then one month with the second one, till the problem occurs. And next to the 25 devices we have now one "bad" device, where we can reproduce the problem within some hours. 

So with the next step we will also try synchronous mode / PWM. I keep the fingers crossed, that it also works on our devices. 

Did you get also an official reply from dialog to this topic? 

Best regards,

Andreas

 

1 month ago

Hi Andreas,

 

the solution was proposed to us by Dialog.

1 month ago

ageisreiter 15 points

Hi Torben,

ok. Thanks a lot for your help.

Best regards,

Andreas