SMM151 SUMMIT Microelectronics, Inc:, SMM151 Datasheet - Page 7

• Manufacturer Part Number: SMM151
• Description: Single-channel Voltage/current Monitors And Voltage Marginers
• Manufacturer: SUMMIT Microelectronics, Inc:

Summit Microelectronics, Inc
Note 1:
monitoring the FAULT# pin state. Actual DC Hysteresis is derived from the equation: (V
and V
Note 2: Current sense accuracy depends on the current sense resistor tolerance. Kelvin sensing of the voltage drop across this resistor must be
used to guarantee accuracy. Accuracy at the low range of the current monitor ADC will be adversely impacted by offset errors.
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: Not 100% Production tested. Guaranteed by Design and/or Characterization.
Note 6: All electrical parameters are guaranteed to function over the stated VDD, VCS and temperature range. Electrical parameters not specified
as "guaranteed by design" are tested with a VDD voltage required of the specific application. For example, if the device is to be operated at 3.3V
and VCS supply of 12V, it is tested with a VDD supply of 3.3V, +-10% and a VCS supply of 12V, +-10%.
Note 3: It is recommended that ADC reads occur with a frequency of not more than 250Hz.
DC OPERATING CHARACTERISTICS (CONTINUED)
T
Note 6.
Symbol
I
OV/UV
V
R
VREF
MARG
VM
R
CMRR
CS
CS
CMRR
AIT
A
HYST
Pull-Up
VM
= 0°C to +70°C, VDD = 2.7V to 5.5V, VCS = 4.0V to 15V, unless otherwise noted. All voltages are relative to GND.
ADC
ACC
ADC
REF
V
=1.25V then Actual DC Hysteresis= (2.5V/1.25V)(0.003V)=6mV.
ACC
VM
CS
HYST
is measured with a 1.25V external voltage and is determined by subtracting Threshold Low from Threshold High, V
Parameter
Address Input Tristate
Maximum Leakage – High Z
Monitor Voltage Range
COMP1/2 DC Hysteresis
Input Pull-Up Resistors
Internal COMP1/2 Reference
Margin Accuracy
Voltage Monitor ADC
Measure Range
VM+, VM- Input Resistance
Voltage Sense Common
Mode Rejection Ratio
Current Monitor ADC
Measure Range
Current Sense Accuracy
Current Sense Common
Mode Rejection Ratio
Notes
COMP1 and COMP2 pins
COMP1 and COMP2 pins,
V
See Pin Descriptions, Note 5
VREF=1.25V
VREF=0.5V
VM+ - VM- = 1.2V, Note 4
VM+ - VM- = 2.5V, Note 4
VM+ - VM-
Note 5
V
Minimum CS+ - CS- voltage
Maximum CS+ - CS- voltage
CS
CS
V
V
TH
CM
CM
CM
ADC
ADC
-V
(VM+, VM-) = 0.5V – VDD, Note 5
(CS+, CS-) = 5.0V, Note 5
(CS+, CS-) = 12V, Note 5
TL
2131 3.0 1/20/2010
≥ 50mV, Note 2
< 50mV, Note 2
(see Note 1)
7
IN(COMP1/2)
/V
REF
0.495
)(
Min.
1.24
-3.0
-1.0
-1.0
V
-2
-1
0
0
HYST
). For example, if V
0.500
±0.75
±0.75
Typ.
1.25
SMM151/152
100
100
10
50
50
62
80
0
0.505
Max
VDD
VDD
+3.0
1.26
+1.0
+1.0
+2
+1
IN(COMP1/2)
TH
Unit
-V
mV
mV
mV
μA
kΩ
kΩ
dB
dB
%
%
%
V
V
V
TL
/=2.5V
while