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参数资料
| 型号： | EM4150A5CI2SC |
| 英文描述： | Optimized Multiphase PWM Controller with 6-Bit DAC and Programmable Internal Temperature Compensation for VR10.X Application; Temperature Range: 0°C to 70°C; Package: 32-QFN |
| 中文描述： | 模拟杂项 |
| 文件页数： | 8/14页 |
| 文件大小： | 197K |
| 代理商： | EM4150A5CI2SC |
EM4150
EM4350
Copyright
2002, EM Microelectronic-Marin SA
3
www.emmicroelectronic.com
Electrical Characteristics
VDD = 2.5V, VSS = 0V, fcoil = 125 kHz Sine wave, Vcoil = 1Vpp, Top = 25°C unless otherwise stated
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Supply voltage
VDD
2.0
5.5
V
Minimum EEPROM write
voltage
VDDee
2.6
V
Power Check EEPROM write
IPWcheck
VDD = 3V
80
A
Supply current / read
Ird
Read Mode
3.0
5.0
A
Suppy current / write
Iwr
Write mode (VDD = 3V)
40
70
A
Modulator ON voltage drop
VON
V(COIL1–Vss) and V(COIL2-Vss) Icoil = 100
A
V(COIL1–Vss) and V(COIL2-Vss) Icoil = 5mA
0.50
2.50
V
Resonance Capacitor
Cr
166.5
170
173.5
pF
Power On Reset level high
Vprh
Rising Supply
2.0
2.6
V
Clock extractor input min.
Vclkmin
Minimum voltage for Clock Extraction
1.0
Vpp
Clock extractor input max.
Vclkmax
Maximum voltage to detect modulation stop
50
mVpp
EEPROM data endurance
Ncy
Erase all / Write all at VDD = 5V
100'000
cycles
EEPROM retention
Tret
Top = 55°C after 100'000 cycles (Note 1)
10
years
Note 1:
Based on 1000 hours at 150°C
Timing Characteristics
VDD = 2.5V, VSS = 0V, fcoil = 125 kHz Sine wave, Vcoil = 1Vpp, Top = 25°C unless otherwise stated
All timings are derived from the field frequency and are specified as a number of RF periods.
Parameters
Symbol
Test conditions
Value
Units
Option : 64 clocks per bit
Opt64
Read Bit Period
LIW/ACK/NACK pattern Duration
Read 1 Word Duration
Processing Pause Time
Write Access Time
Initialization Time
EEPROM write time
trdb
tpatt
trdw
tpp
twa
tinit
twee
including LIW
VDD = 3 V
64
320
3200
64
2112
3200
RF periods
Option : 32 clocks per bit
Opt32
Read Bit Period
LIW/ACK/NACK pattern Duration
Read 1 Word Duration
Processing Pause Time
Write Access Time
Initialization Time
EEPROM write time
trdb
tpatt
trdw
tpp
twa
tinit
twee
including LIW
VDD = 3 V
32
160
1600
32
1056
2624
RF periods
RF periods represent periods of the carrier frequency emitted by the transciever unit. For example, if 125 kHz is used :
The Read bit period (Opt64) would be : 1/125'000*64 = 512 s, and the time to read 1 word : 1/125'000*3200 = 25.6 ms.
The Read bit period (Opt32) would be : 1/125'000*32 = 256 s, and the time to read 1 word : 1/125'000*1600 = 12.8 ms.
ATTENTION
Due to amplitude modulation of the coil-signal, the clock-extractor may miss clocks or add spurious clocks close
to the edges of the RF-envelope. This desynchronisation will not be larger than ±3 clocks per bit and must be
taken into account when developing reader software.
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