TMC248-LA DATASHEET (Rev. 1.01 / 2013-MAR-26)
34
14 Electrical Characteristics
14.1 Operational Range
Parameter
Symbol
Min
-25
-40
-40
7
Max
125
125
140
34
Unit
°C
Ambient temperature industrial*1
Ambient temperature automotive
Junction temperature
TAI
TAA
TJ
°C
°C
Bridge supply voltage (taking into account an increase of up to
2V due to energy fed back from motor)
VS
V
Logic supply voltage
Chopper clock frequency
Slope control resistor
VCC
fCLK
RSLP
3.0
0
5.5
100
470
V
kHz
K
*1 The circuit can be operated up to 140°C, but output power derates.
14.2 DC Specifications
DC characteristics contain the spread of values guaranteed within the specified supply voltage and
temperature range unless otherwise specified. Typical values represent the average value of all parts.
Logic supply voltage: VCC = 3.0 V… 5.5 V,
Bridge supply voltage: VS = 7 V… 34 V
Junction temperature: TJ = -40 °C … 140 °C,
(unless otherwise specified)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
mA
Gate drive current
low side switch ON
ILDON
VLD < 4V
10
15
25
Gate drive current
low side switch OFF
ILDOFF5
ILDOFF3
ILDON
VLD > 3V
VCC = 5V
-15
-10
15
-25
-15
25
-35
-20
40
mA
mA
mA
mA
mA
mA
%
Gate drive current
low side switch OFF
VLD > 3V
VCC = 3.3V
Gate drive current
low side switch ON
VS > 8V, RSLP= 0K
VLD < 4V
Gate drive current
low side switch OFF
ILDOFF
IHDON
IHDOFF
ISET
VS > 8V, RSLP= 0K
VLD > 4V
-15
-15
15
-25
-25
30
-40
-40
40
Gate drive current
high side switch ON
VS > 8V, RSLP= 0K
VS - VHD < 4V
Gate drive current
high side switch OFF
VS > 8V, RSLP= 0K
VS - VHD > 4V
Deviation of Current Setting with
Respect to Characterization Curve
Deviation from
standard value,
10k<RSLP<75k
70
100
130
Gate drive voltage high side ON
VGH1
VS > 8V
relative to VS
-5.1
5.1
-6.0
-8.0
V
Gate drive voltage low side ON
Gate drive voltage high side OFF
Gate drive voltage low side OFF
Gate driver clamping voltage
VGL1
VGH0
VGL0
VGCL
VGCLI
VS > 8V
6.0
0
8.0
-0.5
0.5
20
V
V
V
V
V
relative to VS
0
-IH / IL = 20mA
-IH / IL = -20mA
12
16
-0.8
Gate driver inverse clamping
voltage
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