SMM153

Preliminary Information

Summit Microelectronics, Inc

2.0 8/12/2008

6

DC OPERATING CHARACTERISTICS (CONTINUED)

Symbol

Parameter

Notes

Min.

Typ.

Max

Unit

COMP1/2 DC Hysteresis

COMP1 and COMP2 pins,

(see Note 1)

10

mV

Input Pull-Up Resistors

See Pin Descriptions

50

k

Ω

VREF=1.25V

1.24

1.25

1.26

VREF

Internal COMP1/2

Reference

VREF=0.5V

0.495

0.500

0.505

V

Voltage Monitor ADC

Measure Range

VM+ - VM-

0

VDD

V

VM+ - VM- = 1.2V, Note 4

-1.0

±0.75

+1.0

%

Voltage Monitor Accuracy

VM+ - VM- = 2.5V, Note 4

-1.0

±0.75

+1.0

%

VM+, VM- Input Resistance

50

k

Ω

Voltage Sense Common

Mode Rejection Ratio

62

dB

Current Monitor ADC

Measure Range

CS+ - CS-

0

100

mV

-2

+2

%

Current Sense Accuracy

-1

+1

mV

100

Current Sense Common

Mode Rejection Ratio

80

dB

AC OPERATING CHARACTERISTICS

Symbol

Parameter

Notes

Min.

Typ.

Max

Unit

Monitor sampling/conversion period

Update period for ADC

conversion and DAC update

1.8

ms

0

ms

10

ms

20

ms

40

ms

80

ms

100

ms

120

ms

Programmable COMP1 & COMP2

glitch filter times

140

ms

Note 1:

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