ATA5276M-PGPW19 Atmel, ATA5276M-PGPW19 Datasheet - Page 14

• Manufacturer Part Number: ATA5276M-PGPW19
• Description: RF Wireless Misc 125KHz, Antenna Driver IC
• Manufacturer: Atmel
• Type: Transmitter ICr

Specifications of ATA5276M-PGPW19

• Operating Frequency: 125 KHz
• Supply Voltage (max): 24 V
• Supply Voltage (min): 8 V
• Supply Current: 10 mA
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: QFN-20
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11. Application Hints
14
ATA5276
A typical application of ATA5276 is shown in
antenna current can be estimated by the formula:
Here R
resistance in series with the shunt resistance and the internal drain-source-on-resistance of the
NDMOS. The duty cycle DC
of the oscillation period.
The phase difference
and the peak value of the antenna current.
Î
A
=
2
-- -
A
denotes the equivalent series resistance of the driver load, i.e., the external coil series
V
-----------------
DVCC
R
A
sin
A
-- -
2
is measured as the time difference between the point of mass of VDRV
DRV
DC
DRV
is the ratio of the driver high-side on-time with respect to the half
cos
A
Figure 11-1 on page
15. The peak value of the
4909C–AUTO–01/07