SMM151/152
Preliminary Datasheet
DC OPERATING CHARACTERISTICS (CONTINUED)
TA= 0°C to +70°C, VDD = 2.7V to 5.5V unless otherwise noted. All voltages are relative to GND.
Symbol
Parameter
Notes
Min.
Typ.
Max
Unit
VDD = 2.7V
-3.0
-3.0
0
+3.0
+3.0
VDD
µA
Address Input Tristate
IAIT
Maximum Leakage – High Z
VDD = 5.0V
OV/UV
VHYST
Monitor Voltage Range
COMP1/2 DC Hysteresis
Input Pull-Up Resistors
COMP1 and COMP2 pins
V
COMP1 and COMP2 pins,
10
mV
kΩ
VTH-VTL (see Note 1)
RPull-Up
See Pin Descriptions
VREF=1.25V
50
1.24
0.495
-1.0
1.25
1.26
0.505
+1.0
+1.0
VREF
Internal COMP1/2 Reference
V
VREF=0.5V
0.500
±0.75
±0.75
VM+ - VM- = 1.2V Note 4
VM+ - VM- = 2.5V, Note 4
%
%
MARGACC
Margin Accuracy
-1.0
Voltage Monitor ADC
Measure Range
VM+, VM- Input Resistance
Voltage Sense Common
Mode Rejection Ratio
Current Monitor ADC
Measure Range
VMADC
RVM
VM+ - VM-
0
VDD
V
50
62
kΩ
dB
CMRRVM
VCM (VM+, VM-) = 0.5V – VDD, Note 5
CS+ - CS-
CSADC
CSACC
0
100
mV
-2
-1
+2
+1
%
CSADC ≥ 50mV, Note 2
Current Sense Accuracy
CSADC < 50mV, Note 2
mV
VCM (CS+, CS-) = 5.0V, Note 5
100
80
Current Sense Common
Mode Rejection Ratio
CMRRCS
dB
VCM (CS+, CS-) = 12V, Note 5
Note 1: VHYST is measured with a 1.25V external voltage and is determined by subtracting Threshold Low from Threshold High, VTH-VTL while
monitoring the FAULT# pin state. Actual DC Hysteresis is derived from the equation: (VIN(COMP1/2)/VREF)(VHYST). For example, if VIN(COMP1/2)/=2.5V
and VREF=1.25V then Actual DC Hysteresis= (2.5V/1.25V)(0.003V)=6mV.
Note 2: Accuracy at the low range of the current monitor ADC will be adversely impacted by offset errors.
Note 3: It is recommended that ADC reads occur with a frequency of not more than 250Hz.
Note 4: Voltage accuracy is only guaranteed for factory-programmed settings. Changing voltage from the value reflected in the customer specific
CSIR code may result in inaccuracies exceeding those specified above.
Note 5: Guaranteed by Design
Summit Microelectronics, Inc
2131 2.178/15/2008
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
