TMC262 DATASHEET (Rev. 2.07 / 2013-FEB-14)
52
Notes:
a) Low-side drivers behave similar to a constant-current source between 0V and 2.5V (switching
on) and between 2.5V and 5V (switching off), because switching MOSFETs go into saturation.
At 2.5V, the output current is about 85% of peak value. This is the value specified.
PMOS High-Side Driver
DC Characteristics
VVS = 24.0V, VVS - VHSX = 2.5V, slope setting controlled by SLPH
Parameter
Symbol Conditions
Min
Typ
Max
Unit
mA
Gate drive current HSx
high-side switch ON
IHSON
IHSON
IHSON
SLPH=%00/%01
-15
b)
Gate drive current HSx
high-side switch ON
SLPH=%10
-29
-42
15
mA
mA
mA
mA
mA
b)
Gate drive current HSx
high-side switch ON
SLPH=%11
-25
-70
b)
Gate drive current HSx
high-side switch OFF
IHSOFF SLPH=%00/%01
IHSOFF SLPH=%10
IHSOFF SLPH=%11
c)
Gate drive current HSx
high-side switch OFF
29
c)
Gate drive current HSx
high-side switch OFF
28
43
70
60
c)
Gate off detector threshold
QGD protection resistance after RHSOFFQGD SLPH=%11
VGOD
VHSX rising
VVS-1
32
V
W
detection of gate off
VHSX = VVS - 1V
Driver active output voltage
VHSON IOUT = 0mA
VVHS+2.8 VVHS+2.3 VVHS+1.8
V
Notes:
b) High-side switch on drivers behave similar to a constant-current source between VVS and
VVS–2.5V. At VVS-2.5V, the output current is about 90% of peak value. This is the value specified.
c) High-side switch off drivers behave similar to a constant current source between VVS-8V and
VVS-2.5V. At VVS-2.5V, the output current is about 65% of peak value. This is the value specified.
High-Side Voltage Regulator
DC-Characteristics
VVS = 24.0V
Parameter
Symbol Conditions
Min
Typ
Max
Unit
Output voltage (VVM – VHS)
VHSVM IOUT = 0mA
TJ = 25°C
9.3
10.0
10.8
V
Output resistance
RVHS
Static load
50
60
W
mV
Deviation of output voltage
over the full temperature
range
VVHS(DEV) TJ = full range
200
DC Output current
Current limit
IVHS
(from VM to VHS)
4
mA
mA
W
IVHSMAX (from VM to VHS)
RVHSLV
15
Series regulator transistor
output resistance (determines
voltage drop at low supply
voltages)
400
1000
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