ATAVRSB202 Atmel, ATAVRSB202 Datasheet - Page 232

• Manufacturer Part Number: ATAVRSB202
• Description: KIT BATT MGMT FOR ATMEGA32HVB
• Manufacturer: Atmel

Specifications of ATAVRSB202

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: *
• Primary Attributes: *
• Secondary Attributes: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

32.4
Table 32-3.
Notes:
32.5
Table 32-4.
32.6
Table 32-5.
Notes:
8042B–AVR–06/10
Symbol
V
V
V
Parameter
Reference Voltage
Ref. Voltage Accuracy
Temperature Drift
VREF calibration
Hold Off Time
V
to Absolute Temperature
V
Symbol
VREG
RSCL
BLOD
PTAT
PTAT
V
V
V
t
RST
HYST
POT
BOT
, Voltage Proportional
Absolute Accuracy
Reset Characteristics
1. The voltage at the Pack + terminal will be slightly higher than V
2. The power-on reset will not work unless the voltage has been below V
Voltage Regulator Characteristics
Voltage reference and Temperature Sensor Characteristics
1. Calibration is done in Atmel factory test. Software should calibrate the VREF by writing the BGCRR and BGCCR registers
2. This value is not tested in production.
Pull-down current on the BATT pin in the range 50 - 150 uA and the R
and the BATT pin. R
with the calibration values stored in the signature row.
Parameter
Power-on Threshold Voltage (rising)
Power-on Threshold Voltage (falling)
Minimum pulse width on RESET Pin
Brown-Out Detection (BOD) Trigger Level
BOD Level Hysteresis
Parameter
Regulator Output Voltage
Voltage Regulator Short- circuit Level at
VFET pin
Voltage Regulator Black-out Detection
Level at VREG pin
T
T
T
A
A
A
= -40 to 85°C unless otherwise noted.
= -40 to 85°C unless otherwise noted.
= -40 to 85°C unless otherwise noted.
(1)(2)
(1)
(3)
(2)
Condition
After factory calibration, T
T
T
CREG=2.2µF, BGCCR write
CREG=2.2µf, BGCRR write
BATT
A
A
= -40° - 85°C
= 0° - 60°C
= 1k gives a voltage drop 0.05 - 0.15V.
(1)
(1)(2)
A
= 25°C
Condition
VFET=16.8V, I
VFET=6V, I
VFET=4V, I
T
A
= 25°C
Condition
T
T
A
A
= 25°C
= 25°C
OUT
OUT
POT
OUT
=20mA
=7mA
when the chip is enabled. This is because of an internal
=20mA
Min
2
5
BATT
POT
(falling) after a power-off condition.
resistor connected between the Pack + terminal
ATmega16HVB/32HVB
Min
4.5
4.5
1.100
± 0.1
Typ
0.6
60
25
Min
3.1
3.1
3.1
3.3
± 0.2
Max
± 5
90
50
Typ
900
2.9
50
2.65
Typ
Max
Max
6.3
3.7
ppm/K
7
mV/K
Unit
µs
%
V
K
Units
Unit
mV
ns
V
V
V
232