a8286 Allegro MicroSystems, Inc., a8286 Datasheet - Page 5

• Manufacturer Part Number: a8286
• Description: Dual Lnb Supply And Control Voltage Regulator
• Manufacturer: Allegro MicroSystems, Inc.

A8286
ELECTRICAL CHARACTERISTICS (continued)
Continued on the next page…
Cable Disconnect Set
Cable Disconnect Current Source
Tone
Tone Frequency
Tone Amplitude, Peak-to-Peak
Tone Duty Cycle
Tone Rise Time
Tone Fall Time
EXTM Logic Input
EXTM Input Leakage
Tone Detector
Tone Detect Input Amplitude Receive, Peak-to-
Peak
Tone Detect Input Amplitude Transmit, Peak-
to-Peak
Tone Reject Input Amplitude, Peak-to-Peak
Frequency Capture
Input Impedance
TDO Output Voltage
TDO Output Leakage
I
Logic Input (SDA,SCL) Low Level
Logic Input (SDA,SCL) High Level
Logic Input Hysteresis
Logic Input Current
Logic Output Voltage SDA and IRQ
Logic Output Leakage SDA and IRQ
SCL Clock Frequency
Output Fall Time
Bus Free Time Between Stop/Start
Hold Time Start Condition
Setup Time for Start Condition
SCL Low Time
SCL High Time
Data Setup Time
Data Hold Time
2
C™-Compatible Interface
2
Characteristics
Dual LNB Supply and Control Voltage Regulator
V
V
V
V
V
I
V
V
DC
V
V
Symbol
I
I
V
EXTMLKG
TDT(pp)Ext
V
V
V
V
CADSRC
TDT(pp)Int
t
t
t
t
TONE(pp)
TDOLKG
t
t
t2COut(L)
t
EXTM(H)
HD:DAT
CADSET
f
EXTM(L)
fI2COut
HD:STA
SU:STA
SU:DAT
TDR(pp)
I2CIHYS
t
rTONE
fTONE
t2CLKG
t
TRI(pp)
Z
TDO(L)
SCL(H)
TONE
SCL(L)
f
t
I
HIGH
f
LOW
BUF
I2CI
CLK
TDI
TONE
TDI
at T
A
V
I
I
I
I
f
f
(options 1 and 2, in figure 2)
f
tone (options 3 and 4, in figure 2)
f
600 mVpp sine wave
Tone present, I
Tone absent, V
V
I
V
V
LOAD
LOAD
LOAD
LOAD
TONE
TONE
TONE
TONE
LOAD
= 25°C, V
LNB
I2CI
t2COut
t2COut(H)
= 21.00 V, V
= 0 to 7 V
= 0 to 500 mA, C
= 0 to 500 mA, C
= 0 to 500 mA, C
= 0 to 500 mA, C
= 22 kHz sine wave, TMODE = 0
= 22 kHz sine wave, using internal tone
= 22 kHz sine wave, using external
= 22 kHz sine wave
= 3 mA
= 0 to 7 V
to V
IN
= 8 to 16 V, unless noted otherwise
t2COut(L)
LOAD
TDO
Test Conditions
BOOST
= 7 V
= 3 mA
LOAD
LOAD
LOAD
LOAD
= 22.8 V
= 750 nF
= 750 nF
= 750 nF
= 750 nF
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
20.16
17.6
Min.
400
300
400
300
–10
100
1.0
2.0
2.0
1.3
0.6
0.6
1.3
0.6
20
40
–1
1
5
5
–
–
–
–
–
–
–
–
–
–
–
0
21.00
<±1.0
Typ.
1.75
620
150
8.6
22
50
10
10
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
21.84
Max.
26.4
800
100
400
250
900
2.5
0.8
0.4
0.8
0.4
24
60
15
15
10
10
10
–
1
–
–
–
–
–
–
–
–
–
–
–
–
Units
kHz
kHz
kHz
mV
mV
mV
mV
mV
mV
mA
μA
kΩ
μA
μA
μA
μs
μs
ns
μs
μs
μs
μs
μs
ns
ns
%
V
V
V
V
V
V
V
5