ATA5275 ATMEL Corporation, ATA5275 Datasheet - Page 11

• 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

Electrical Characteristics
4739B–AUTO–10/04
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Notes:
No.
2.5
2.6
3.1
3.2
3.3
3.4
3.5
4.1
4.2
4.3
4.4
4.5
4.6
5.1
3
4
5
1. 8 V < V(DVCC) < 24 V; -40 C <
2. Definition of DC
Driver output rise time
Driver output fall time
Antenna Peak Current Control
Duty cycle control
range
Peak current control
reference
Peak current control
accuracy
Antenna peak under
current threshold
Antenna peak
over-current threshold
Oscillator and Phase Control
VCO initial frequency
VCO frequency
tracking range
Phase shift between
voltage at DRV and
zero crossing of
current through
SENSE
Phase control set-up
time
High frequency failure
threshold
Low frequency failure
threshold
DIO Interface
Parameters
VDIO leackage current
DRV
see “Application Hints” on page 13
Test Conditions
10% to 90% slope
time,
0% = DVSS,
100% = DVCC
DVCC = 12 V
(smooth edges)
10% to 90% slope
time,
0% = DVSS,
100% = DVCC
DVCC = 12 V
(smooth edges)
R
0% NOM value = IA
RCR = 25 k
0% NOM value = IA
RCR = 25 k
Self oscillating mode =
half-bridge not
activated
Tracking frequency
mode = half-bridge
activated
Antenna resonance
frequency range =
100 kHz to150 kHz,
antenna quality = 5 to
50
-240 ns
Pin VDIO = 13.5 V,
Pin DIO = 13.5 V
T
amb
CR
= 25 k
= 90°C
(1)
A +240 ns
(Continued)
amb
< 105 C, unless otherwise specified; all values refer to GND
acc
acc
SENSE
SENSE
VDIO
RCR
DRV,
DRV,
DRV
DRV
DRV
DRV
DRV
Pin
I
T
T
DC
Symbol
VDIO,STBY
CLK
CLK
DRV,RISE
DRV,FALL
IA
T
f
V
f
IA
IA
VCOH
VCOL
setup
DRV
RCR
peak
UC
OV
A
SO
TR
(2)
Min.
1.15
-120
ATA5275 [Preliminary]
123
150
-30
1.0
50
50
15
30
80
80
2
1.215
Typ.
100
100
125
160
-20
1.3
20
90
0
4
Max.
+120
1.28
150
150
127
170
160
170
100
1.8
-10
85
10
5
Unit
kHz
kHz
kHz
kHz
µA
ns
ns
ns
µs
%
%
%
V
A
Type*
D
D
B
A
B
A
A
A
B
B
D
A
A
A
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