TLE7239SL Infineon Technologies, TLE7239SL Datasheet - Page 17

• Manufacturer Part Number: TLE7239SL
• Description: IC DRIVER SPI RELAY CTRL 24SSOP
• Manufacturer: Infineon Technologies
• Series: -r
• Type: High Side/Low Side Driverr

Specifications of TLE7239SL

• 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

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 TLE7239SL. 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
TLE7239SL
potential,
(1)
(2)
(3)
(4)