A3935 Allegro MicroSystems, Inc., A3935 Datasheet - Page 7

• Manufacturer Part Number: A3935
• Description: Three-Phase Power MOSFET Controller
• Manufacturer: Allegro MicroSystems, Inc.

ELECTRICAL CHARACTERISTICS:
V
Characteristics
Fault Logic
VDD Undervoltage
VDD Undervoltage Hysteresis
OVSET Operating Volt. Range
OVSET Calibrated Volt. Range
OVSET Input Current Range
VBAT Overvoltage Range
VBAT Overvoltage
VBAT Overvoltage Hysteresis
VBAT Overvoltage Gain Constant
VBAT Undervoltage
VBAT Undervoltage Hysteresis
VREG Undervoltage
VDSTH Input Range
VDSTH Input Current
Short-to-Ground Threshold
Short-to-Battery Threshold
V
V
V
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
NOTES: Typical Data and Typical Characteristics are for design information only.
DRAIN
DRAIN
DRAIN
www.allegromicro.com
DD
= 4.75 V to 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active.
/Open Bridge Threshold Volt.
/Open Bridge Oper. Range
/Open Bridge Current
Negative current is defined as coming out of (sourcing) the specified device terminal.
Symbol
V
V
V
V
V
V
K
V
V
V
V
I
V
I
V
V
V
V
SET(ov)
I
VDRAIN
BDGO(th)
REG(uv)
SET(ov)
SET(ov)
BAT(ov)
BAT(ov)
BAT(ov)
BAT(uv)
STG(th)
STB(th)
DSTH
DD(uv)
DRAIN
BAT(ov)
BAT(uv)
DSTH
T
DD(uv)
T
J
J
unless otherwise noted at T
Conditions
Decreasing V
V
0 V < V
Increasing V
Percent of V
V
Decreasing V
Percent of V
Decreasing V
V
With a high-side driver “on”, as V
V
With a low-side driver “on”, as V
V
7 V < V
7 V < V
If V
DD(recovery)
BAT(ov)
DSTH
DRAIN
SX
DRAIN
- V
> 0.8 V
- V
= (K
LSS
SET(ov)
BAT
BAT
< V
SX
> V
- V
< 40 V
< 40 V
BAT(ov)
> V
BDGOTH
BAT(ov)
BAT(uv)
BAT
< 2.5 V
DD(uv)
STB
DD
BAT
REG
STG
, V
x V
causes a fault
SET(ov)
value set by V
causes a fault
then a bridge fault occurs
SET(ov)
= 0 V
) + V
BAT(ov)
J
SX
SET(ov)
= -40°C to +150°C, V
SX
increases,
[0]
decreases,
MOSFET CONTROLLER
THREE-PHASE POWER
V
V
DSTH
DSTH
19.4
19.4
Min
100
-1.0
-0.3
160
3.8
9.0
5.0
8.0
9.9
0.5
1.0
7.0
40
0
0
–
0
BAT
-0.3 – V
-0.3 – V
= 7 V to 16 V,
22.4
5.25
Typ
170
12
10
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Limits
V
DSTH
DSTH
BAT
Max
+1.0
25.4
11.1
300
100
180
V
3.0
4.3
2.5
5.5
3.0
1.0
40
15
12
13
–
DD
+2.0
+0.2
+0.2
3935
Units
V/V
mV
mA
µA
µA
°C
°C
%
%
V
V
V
V
V
V
V
V
V
V
V
V
7