ATA5275 ATMEL Corporation, ATA5275 Datasheet - Page 3

• Manufacturer Part Number: ATA5275
• Description: Integrated 1.5 A peak current BCDMOS antenna driver IC dedicated as a 125 kHz wake-up channel transmitter for TPM applications
• Manufacturer: ATMEL Corporation

Pin Configuration
Figure 2. Pinning QFN20
Pin Description
4739B–AUTO–10/04
Note:
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
(1)
1. Pin numbers valid for all revisions of the ATA5275
Symbol
BOOST
DVCC2
DVCC1
SENSE
DVCC3
DVSS3
DVSS2
DVSS1
REXT
DRV3
DRV2
DRV1
VDIO
RCR
VSS
TM3
TM2
TM1
VCC
DIO
Function
Battery supply input
Battery supply input
Antenna driver stage output
Antenna driver stage output
Antenna driver stage output
Power supply ground
Power supply ground
Power supply ground
Current zero crossing sense input
Analog and digital ground
External reference current input
External reference for antenna peak current
For test purposes only
For test purposes only
For test purposes only
DIO line interface voltage selection
One-wire serial interface line
5 V supply output (for external storage capacitor only)
External bootstrap cap
Battery supply input
DVCC2
DVCC1
DRV3
DRV2
DRV1
1
2
3
4
5
DVSS3
DVCC3
20
6
ATA5275
BOOST
DVSS2
19
7
DVSS1
VCC
18
8
SENSE
DIO
17
9
VDIO
16
VSS
10
ATA5275 [Preliminary]
REXT
RCR
TM1
TM2
TM3
15
14
13
12
11
3