L9963E datasheet(10/184 Pages) STMICROELECTRONICS

10 / 184 page

3.1.1

Supply voltage ranges

The device operates up to 14 cells of battery for hybrid and electric vehicles. The device can cover the voltage

range of the main automotive Lithium batteries, up to a maximum of 4.6 V per cell in operating conditions. The IC

has been engineered to sustain transient OV events as per LV 148

All operative ranges are listed in the picture below.

If the stand by V3V3 regulator goes in POR, the device is put in reset.

Figure 4. Device operation in the VBAT supply voltage ranges

AMR

Violation

•Permanent

damage

•Permanent

parameter

deviation

Critical

• Params may

deviate

• Balance

disabled

• Transceiver

usage

Dyn UV

•No

param

deviation

•All

functions

guarante

Normal

•All

functions

guarantee

Dyn OV

•Cell total

error

slightly

increased

•All

functions

guarantee

Critical

•Params

may

deviate

•All

functions

available

AMR

Violation

•Permanent

damage

•Permanent

parameter

deviation

VBAT

3.2

Absolute maximum ratings

Exceeding any Absolute Maximum Rating (AMR) may cause permanent damage to the integrated circuit.

All voltages are related to the potential at substrate ground AGND.

Table 3. Absolute Maximum Rating

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VBAT, C14

-0.3

0.3

C(n); B(n,n-1); Sn

-0.3

C(n)-C(n-1) for n=1 to 14

In this range, the device is not

damaged, but leakage from

pins may exceed ICELL_LEAK

(see Table 39) if ADCs are

enabled; it doesn’t exceed if

ADCs are disabled

-72

C(n)-C(n-1) for n=1 to 14

In this range, the leakage from

pins ICELL_LEAK is guaranteed

(see Section 6.10.5 Busbar

connection) if ADCs are

enabled or disabled

-6

S(n+1)-B(n+1,n) B(n+1,n)-S(n)

for n=1 to 13 odd

-0.3

VBAL_CLAMP

C(n)-S(n) for n=1 to 14

Vreg < 2 V

-72

VBAT-C14

-72

ISOHP/M, ISOLP/M

-0.3

GPIOn

-0.3

5.5

SPIEN

-0.3

VTREF

-0.3

L9963E

Absolute maximum ratings

DS13636 - Rev 12

page 10/184

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