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Intersil ISL70321SEHDEMO1Z, User Manual

The Intersil ISL70321SEHDEMO1Z User Manual is available for free download on our website. This comprehensive manual provides users with all the necessary information to understand and operate this high-quality product. Simply visit manualshive.com to access the manual and unlock the full potential of the ISL70321SEHDEMO1Z.

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UG124 Rev.0.00

Page 5 of 9

Jul 24, 2017

ISL70321SEHDEMO1Z

3. Application Considerations

Figure 4. Sequencing On 3 POLs, RTDLY = 2ms

Figure 5. Sequencing Off 3 POLs, RTDLY = 2ms

Figure 6. VM Low to KILL, UP, and EN1

Figure 7. Auto Fault Clear and Reset Waveform

UP/INIT

POL1 VOUT

POL2 VOUT

POL3 VOUT

2ms/DIV

UP/INIT

POL1 VOUT

POL2 VOUT

POL3 VOUT

5ms/DIV

VM

KILL

EN1

UP

DONE

EN1

KILL

UP

Summary of Contents for ISL70321SEHDEMO1Z

Page 1: ...Rev 0 00 Jul 2017 User s Manual ISL70321SEHDEMO1Z User s Manual Demonstration Board High Reliability ...

Page 2: ...ts pull ups and the timers set to 2ms and 4ms for the delay and power good durations respectively 1 1 Key Features Small compact design Easy to integrate into an existing circuit Highly customizable 1 2 Specifications This board provides for the following operating conditions Nominal VIN 3 3V to 12V Sequence up and down in reverse order 1 5 accuracy voltage monitoring Adjustable voltage monitoring...

Page 3: ...ditions for the VM input threshold and the delay timing have been configured for building familiarity with its functions before system integration The default configuration is set as follows The VMx inputs all have 2 1 resistor dividers from the VMx_IN connection points to the VM1 to VM4 inputs This sets the nominal VM rising input voltage threshold to be 1 2V The ENx DONE and KILL outputs all hav...

Page 4: ...hen make the ISL70321SEH cycle through an infinite number of attempts at restarting and KILL shut down until the fault is cleared Figure 3 shows the auto restart connection When KILL is invoked it is used to automatically clear and reset the sequencer This results in the ISL70321SEH attempting to restart the entire sequence up progression Figure 6 shows the details of a low VM input to invoke a KI...

Page 5: ...s Figure 4 Sequencing On 3 POLs RTDLY 2ms Figure 5 Sequencing Off 3 POLs RTDLY 2ms Figure 6 VM Low to KILL UP and EN1 Figure 7 Auto Fault Clear and Reset Waveform UP INIT POL1 VOUT POL2 VOUT POL3 VOUT 2ms DIV UP INIT POL1 VOUT POL2 VOUT POL3 VOUT 5ms DIV VM KILL EN1 UP DONE EN1 KILL UP ...

Page 6: ...0321SEHDEMO1Z Schematic Figure 8 Top of Board Figure 9 Bottom of Board Figure 10 ISL70321SEHDEMO1Z Schematic GND GND E E E E E E E E E TP13 R10 10K R8 10K TP4 TP12 10K R4 R13 10K R7 10K TP3 TP11 R11 10K 10K R3 R14 10K TP8 TP2 TP10 R15 10K TP7 TP1 TP9 VDD EN1 EN2 VM2 VCC5 VREF EN3 EN4 KILL GND DONE VM1 UP VM3 VM4 PGTMR INIT TDLY U1 ISL70321SEHVF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 R6 10K R...

Page 7: ... Tol Rating Type PCB Footprint Manufacturer Manufacturer Part Number 1 1 U1 Intersil ISL70321SEH PROTO 2 2 C1 C2 0 47µF 10 16V X7R SM0603 Various Generic 3 1 C3 0 22µF 10 16V X7R SM0402 Various Generic 4 17 R1 R17 10kΩ 1 1 16W CHIP SM0402 Various Generic Figure 11 Top Silkscreen Figure 12 Top Layer Figure 13 Bottom Trace Layers Figure 14 Bottom Silkscreen ...

Page 8: ...ioned to verify that the document is current before proceeding For information regarding Intersil Corporation and its products see www intersil com Copyright Intersil Americas LLC 2017 All Rights Reserved All trademarks and registered trademarks are the property of their respective owners UG124 Rev 0 00 Page 8 of 9 Jul 24 2017 5 Revision History Rev Date Description 0 00 Jul 24 2017 Initial releas...

Page 9: ...ISL70321SEHDEMO1Z UG124 ...

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