A3931 Allegro MicroSystems, Inc., A3931 Datasheet - Page 5

• Manufacturer Part Number: A3931
• Description: Automotive 3-Phase BLDC Controller and MOSFET Driver
• Manufacturer: Allegro MicroSystems, Inc.

A3930
A3931
Continued on the next page…
Subject to Change Without Notice
ELECTRICAL CHARACTERISTICS
Logic Inputs and Outputs
FFx Fault Output (Open Drain)
FFx Fault Output Leakage Current
TACHO and DIRO Output High Voltage
TACHO and DIRO Output Low Voltage
Input Low Voltage
Input High Voltage (Except RESET)
RESET Input High Voltage
Input Hysteresis
Input Current (Except H1, H2, H3, and
RESET)
RESET Input Pull-Down Resistor
Hx Input Pull-Up Resistor
Current Sense Differential Amplifier
Input Bias Current
Input Offset Current
CSP Input Resistance
CSN Input Resistance
Differential Input Voltage
Output Offset Voltage
Output Offset Voltage Drift
Input Common Mode Range
Differential Input Voltage Gain
Low Output Voltage Error
DC Common Mode Gain
Source Resistance
Output Dynamic Range
Output Current – Sink
Output Current – Source
Supply Rejection
Small Signal 3dB Bandwidth Frequency
Settling Time
Preliminary Data Sheet
2
April 6, 2006
Characteristics
and
2
2
2
2
at T
I
J
CSOUT(source)
I
CSOUT(sink)
= –40°C to 150°C, V
Symbol
V
V
t
r
PSRR
A
SETTLE
R
R
CSOUT
V
V
OOS(Δt)
V
V
CSOUT
V
R
R
V
V
I
f
I
V
I
V
V
V
CMdc
I
OOS
A
3dB
IOS
OH
IHys
IBS
CSP
CSN
IHR
CM
OH
IN
OL
OL
PD
PU
err
IH
ID
IL
V
I
V
I
I
V
V
CSP = CSN = 0 V
CSP = CSN = 0 V
Measured with respect to AGND
Measured with respect to AGND
V
–1.3 V < CSN < 4 V
CSP = CSN = 0 V
CSP = CSN = 0 V
CSP = CSN
40 mV < V
0 < V
V
CSP = CSN = 200 mV
V
–100 μA < I
V
V
CSP = CSN = AGND, 0 to 300 kHz
V
To within 10%, V
wave
OL
OH
OL
CSOUT
O
IN
IN
ID
CSOUT
CSOUT
CSOUT
ID
Automotive 3-Phase BLDC Controller
=10 mVpp
= 1 mA, fault asserted
= 5 V, fault not asserted
= 1 mA
= 5 V
= 0 V
= CSP – CSN, –1.3 V < CSP < 4 V,
= –1 mA
ID
< 40 mV,
= 2 V ±5%
= 2 V ±5%
= 2.0 V, I
= (19 × V
BB
ID
= 7 to 45 V, unless otherwise noted
Test Conditions
CSOUT
< 175 mV, V
ID
CSOUT
CSOUT
< 100 μA
) + V
OOS
= [TBD] μA
= 1 Vpp square
CM
+ V
in range
err
and MOSFET Driver
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
V
5
Min.
–1.5
18.2
300
–95
–20
150
–20
2.2
0.1
–1
– 1 V
–1
–
–
–
2
–
–
–
–
0
–
–
–
–
–
–
–
–
1
–145
Typ.
500
100
375
100
–30
–19
400
1.6
50
80
19
30
45
–
–
–
–
–
–
–
–
–
4
–
–
–
–
1
Max.
–205
19.4
200
600
0.4
0.4
0.8
4.8
20
20
1
–
–
–
–
1
–
–
–
–
–
4
–
–
–
–
–
–
–
μV/°C
Units
MHz
V/V
mV
mV
mV
mV
mA
mA
kΩ
kΩ
kΩ
kΩ
dB
dB
μA
μA
μA
μA
ns
V
V
V
V
V
V
V
Ω
V
5