TLE7237SL Infineon Technologies, TLE7237SL Datasheet - Page 16
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TLE7237SL
Manufacturer Part Number
TLE7237SL
Description
IC DRIVER SPI RELAY CTRL 24SSOP
Manufacturer
Infineon Technologies
Series
-r
Type
High Side/Low Side Driverr
Datasheet
1.TLE7237SL.pdf
(36 pages)
Specifications of TLE7237SL
Input Type
SPI
Number Of Outputs
8
On-state Resistance
900 mOhm, 1.6 Ohm
Current - Output / Channel
175mA, 380mA
Current - Peak Output
500mA, 1A
Voltage - Supply
9 V ~ 16 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
24-SSOP (0.154", 3.90mm Width)
Packages
PG-SSOP-24
Channels
8.0
Rds (on) (typ)
0.9 Ohm
Vdd
3.0 - 5.5 V
Vds(cl)
41.0 - 52.0 V
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TLE7237SL
Manufacturer:
INFINEON
Quantity:
100
Part Number:
TLE7237SL
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
6.3
When switching off inductive loads with low-side switches, the potential at pin OUT rises to
because the inductance intends to continue driving the current. For the high-side channels, the potential at pin
OUT drops below ground potential to
device, see
clamping energy
Figure 5
Maximum Load Inductance
During demagnetization of inductive loads, energy has to be dissipated in the TLE7237SL. This energy can be
calculated with following equations:
These equations simplify under the assumption of
The maximum energy, which is converted into heat, is limited by the thermal design of the component.
Data Sheet
E
E
E
E
=
=
=
=
V
1
-- -
2
1
-- -
2
V
LI
LI
DS(CL)
bb
L
L
–
2
2
V
S(CL)
Inductive Output Clamp
Figure 5
Output Clamp Implementation
1
1
V
---------------------------------- - ln 1
–
–
V
bb
---------------------------------- -
V
--------------- -
V
bb
E
V
bb
S(CL)
–
high side
channel
AR
bb
R
V
V
–
V
--------------- - ln 1
L
V
V
DS(CL)
DS(CL)
see electrical characteristics
V
S(CL)
R
S(CL)
bb
for details. Nevertheless, the maximum allowed load inductance is limited by the max.
DS(CL)
L
GND
–
–
R
--------------- -
V
---------------------------------- -
V
S(CL)
L
bb
R
I
–
L
L
V
VBB
OUT
V
DS(CL)
I
+
S(CL)
L
I
L
. The voltage clamping is necessary to prevent destruction of the
V
I
S
S
------
R
L
+
I
L
L
I
“E
L
R
L
L,
R
AR
= 0:
L
------
R
L
16
” on Page
L
High-side
Low-side
low side
channel
High-side
Low-side
V
DS(CL)
SPI Driver for Enhanced Relay Control
10.
GND
OUT
V
I
D
D
I
L
OutputClamp.emf
Rev. 1.1, 2011-04-05
L,
R
L
V
DS(CL)
Power Stages
TLE7237SL
potential,
(1)
(2)
(3)
(4)