ATmega16HVB datasheet(233/273 Pages) ATMEL

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233

8042A–AVR–07/09

ATmega16HVB/32HVB

32.9

Cell Balancing Characteristic

32.10 Battery Protection Characteristics

Notes:

1. Value includes drift in the internal Voltage Reference after VREF factory calibration.

2. Levels in charge and discharge direction can be configured independent of each other.

32.11 External Interrupt Characteristics

Table 32-9.

TA= 25°C unless otherwise noted.

Parameter

Condition

Min

Typ

Max

Unit

Balancing Current

Battery cell Voltage VCELL =4.2V,

V-ADC filter resistance=470

4mA

Table 32-10. T

A= -40 to 85°C unless otherwise noted.

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VSCD=VNNI-VPPI

Short Circuit Detection level

accuracy(1)(2)

SCD=20mV (min level)

VSCD=150mV

130

150

170

VSCD=310mV(max)

280

310

340

COCD=VPPI-VNNI,

VDOCD=VNNI-VPPI

Charge/Discharge Over Current

Detection level accuracy(1)(2)

COCD,DOCD=20mV (min level)

VCOCD,DOCD=150mV

130

150

170

VCOCD,DOCD=310mV(max)

280

310

340

CHCD=VPPI-VNNI,

VDHCD=VNNI-VPPI

Charge/Discharge High Current

Detection Detection level

accuracy(1)(2)

CHCD,DHCD=20mV (min level)

VCHCD,DHOCD=150mV

130

150

170

VCHCD,DHCD=310mV(max)

280

310

340

Table 32-11. Asynchronous External Interrupt Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Units

tINT

Minimum pulse width for asynchronous external

interrupt

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