SMH4814 Datasheet, PDF (8/44 Pages) Summit Microelectronics, Inc. – Dual Feed Active-ORing Programmable Hot Swap Controller

SMH4814
Preliminary Information
DC OPERATING CHARACTERISTICS (Continued)
Over recommended operating conditions, unless otherwise noted. All voltages are relative to V_SS.
DC Programmable Functions (Note 2)
Symbol
Parameter
V_UV
V_UVHYS
V_OV
V_OVHYS
V_CB
Under-Voltage Threshold
Under-Voltage Hysteresis
Over-Voltage Threshold
Over-Voltage Hysteresis
Circuit Breaker Threshold
V_CBMAX
Circuit Breaker Threshold MAX
V_CR
Current Regulation Level
V_QCB
Programmable Quick Trip Circuit
Breaker Threshold Voltage
I_{VGHS_MAX} VGATE_HS Maximum Current
Conditions
Default 2.864V
Default 160mV
Default 3.072V
Default 160mV
Default 50mV
Default 256mV
Default V_CB+25%
Default 100mV
Default 72µA
V_GATE = 5V
Min.
-5
-5
-5
-5
-5
-5
-5
-5
Typ.
V_UV
V_UVHYS
V_OV
V_OVHYS
V_CB
V_CBMAX
V_CR
V_QCB
Max.
+5
+5
+5
+5
+5
+5
+5
+5
Units
%
%
%
%
%
%
%
%
–5
I_{VGHS_MAX}
+5
%
I_VGATEA/B Programmable I_VGATEA, I_VGATEB
Default 50µA
–25
I_VGATEA/B
25
%
I_{FEED_SEL}
Programmable FEED current of the
selected feed (A or B)
Default 18µA
–5
I_{FEED_SEL}
5
%
Programmable FEED current of the
I_{FEED_UNSEL unselected feed (A or B)}
Default 26µA
–5
I_{FEED_UNSEL}
5
%
Notes: 2 - Default values listed; refer to the Configuration Registers description for the range of values allowed.
Summit Microelectronics, Inc
2080 2.0 07/21/05
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