17

ICS1702

Data Tables

Table 9: Absolute Maximum Ratings

Power: VDD Pin

The power supply for the device must be connected to the VDD

pin. The voltage should be +5 VDC and should be supplied to the

part through a regulator that has good noise rejection and an

adequate current rating. The controller requires up to a maximum

Figure 14: Open Circuit Reference Example

Grounding: VSS, AVSS Pins

There are two ground pins. Both pins must be connected together

at the device. This point must have a direct connection to a solid

ground plane.

Supply Voltage

6.5

V

Logic Input Levels

-0.5 to V

V

Ambient Operating Temperature

0 to 70

Storage Temperature

-55 to 150

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only.

Functional operation of the device at the Absolute Maximum Ratings or other conditions not consistent with the characteristics shown in this

document is not recommended. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.

+ 5 V

R4 = 1.3k

R3 = 2.2k

R1 = 10k

R2 = 2k

6 cells

+

-

VIN =

OPREF = 1.86V

current source

(open circuit voltage = 12V)

{

1.60V (battery present)

2.00V (no battery)

(9.6 V)

Resistor divider at the OPREF pin

Resistor divider at the VIN pin