AMIS−30422
http://onsemi.com
7
Table 4. DC PARAMETERS
The DC parameters are given for V
BB
and temperature in their operating ranges unless otherwise specified.
Convention: currents flowing in the circuit are defined as positive.
Symbol UnitMaxTypMinRemark/Test ConditionsParameterPin(s)
PRE−DRIVER
V
SENS
RSENSxx
PWM comparator toggle level Selectable through SPI 1/40 1/5 V
REF
V
SENS_Tol
PWM comparator toggle level
tolerance
−22 +22
%
REF INPUT
V
REF
REF
REF input voltage 0 VDD V
V
REF_Range
REF input voltage range 0.25 2 V
V
REF_TOL
Tolerance on maximum VREF_Range −10 +10 %
I
REF_LEAK
REF input leakage V
REF
≤ 1.8 V −1 1
mA
R
REF
REF input impedance See also Figure 3 10 20 30
kW
DIGITAL INPUTS
V
IL
CLK, DI,
CSb, NXT,
DIR, CLR,
HOLDCUR
Logic Low Threshold 0 0.3 x V
DD
V
V
IH
Logic High Threshold 0.7 x V
DD
V
DD
V
R
pd
Internal Pull Down Resistor
Csb and CLR excluded,
See also Figure 3
250 1100
kW
R
pu
CSb Internal Pull Up Resistor See also Figure 3 250 1100
kW
DIGITAL OUTPUTS
V
OL
DO,
ERRb,
WDb
Logic low output level
Output set to type 4 (see
Figure 3)
0.5
V
V
OH
Logic high output level V
DD
− 0.5
V
OL_OPEN
Logic Low level open drain
I
OL
= 8 mA, Output set to type 2
(see Figure 3), DO excluded
0.5
SPEED AND LOAD ANGLE OUTPUT
V
out
SLA
Output Voltage Range 0.5 V
DD
− 0.5 V
V
off
Output Offset SLA−pin Selectable through SPI 0.6 1.2 V
V
off_tol
Tolerance on SLA output offset −17 +17 %
G
SLA
Gain of SLA−pin = V
BEMF
/ V
SLA
Selectable through SPI 0.0625 1
G
SLA_tol
Tolerance on SLA gain −10 +10 %
R
out
Output Resistance SLA−pin See also Figure 3 1
kW
I
SLA_load
Load current SLA−pin 0 −40
mA
THERMAL WARNING & SHUTDOWN
T
1
Trigger level thermal range 1 See Figure 21 −5 15 35 °C
T
2
Trigger level thermal range 2 See Figure 21 55 70 85 °C
T
3
Trigger level thermal range 3 See Figure 21 138 150 162 °C
T
TW
Thermal Warning See Figure 21 138 150 162 °C
T
TSD
Thermal shutdown See Figure 21 T
TW
+ 20 °C
CHARGE PUMP
V
CP
− V
BB
VCP
Chargepump overdrive voltage Based on Figure 9 3.5 V
BB
– 2.5 15.75 V
V
CPP
–
V
CPN
Chargepump pumping voltage 3.5 V
BB
– 2.5 15.75 V
C
pump
External pump capacitor See also C
2
Figure 9 220 nF
C
buffer
CPP CPN External buffer capacitor See also C
3
Figure 9 220 nF
