Summit Microelectronics - Applications Note 29

Tech Support: Applications Note 29
SMH4804 -48V Programmable Hot Swap Sequencing Power Controller Windows GUI Users Guide and Configuration Register Descriptions

Application Note 29

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SMH4804 - Windows GUI Users Guide and Configuration Register Descriptions

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Register R03 - Sequencing delay times, MODE pin function.
This register is used to control the sequencing delays from PG1# to PG2#, PG2# to PG3#, and PG3# to PG4#. The SMH4804 provides two levels of sequencing delay: fast and slow, which is selected by programming bit 3 of Register 9. These two bits are effectively concatenated with R9 bit 3, providing 8 programmable delay periods. Refer to Register 9 for more information.

NOTE - Bit 1 controls the effect of the MODE pin. When set (high) the pin functions as described in the pin descriptions. If the bit is cleared (low) the state of the pin is ignored and the circuit breaker enters latch mode.

Bit 0 enables or disables the function of the PD[4:1]# inputs.

Summit Microelectronics, Inc: Application Note 29: Table 02

NOTICE

SUMMIT Microelectronics, Inc. reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. SUMMIT Microelectronics, Inc. assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon a user's specific application. While the information in this publication has been carefully checked, SUMMIT Microelectronics, Inc. shall not be liable for any damages arising as a result of any error or omission.

SUMMIT Microelectronics, Inc. does not recommend the use of any of its products in life support or aviation applications where the failure or malfunction of the product can reasonably be expected to cause any failure of either system or to significantly affect their safety or effectiveness. Products are not authorized for use in such applications unless SUMMIT Microelectronics, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of SUMMIT Microelectronics, Inc. is adequately protected under the circumstances.

Revision 1.0 - This document supersedes all previous versions and covers Windows GUI revision 2.3.0 and later. Please check the Summit Microelectronics, Inc. web site at www.summitmicro.com for updates.