TLE8088EM
Engine management IC for Small Engines
1
Overview
Features
•
Supply 5 V (±2%), 250 mA
– Overtemperature and overcurrent protection
•
Watchdog and reset function
•
K-line transceiver
•
1 low side driver for inductive loads with maximum operation current of
2.6 A including overtemperature, overcurrent protection and open load/short to GND in off diagnosis
•
1 low side driver for resistive loads with maximum operation current of 3 A including overtemperature and
overcurrent protection
•
Small Package PG-SSOP-24 Exposed Pad
•
Temperature range: -40°C to 150°C
•
Green Product (RoHS compliant)
•
AEC Qualified
Description
TLE8088EM is an engine management IC based on Infineon Smart Power Technology (SPT). It is protected by
embedded protection functions and integrates a power supply, K-line and power stages to drive different
loads in an engine management system. It is designed to provide a compact and cost optimized solution for
engine management and powertrain systems. It is specially suitable for one cylinder motorcycle engine
management system.
Type
Package
Marking
TLE8088EM
PG-SSOP-24
TLE8088EM
Data Sheet
www.infineon.com
1
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Table of contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3
3.1
3.2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4
4.1
4.2
4.3
General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
7
7
5
5.1
5.2
5.3
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power on reset and reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Watchdog operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
8
8
9
6
6.1
6.2
Power drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Low-side drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7
7.1
K-line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
K-line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8
8.1
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9
Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Data Sheet
2
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Block diagram
2
Block diagram
Vs
V5DD
NRO
WDI
5V voltage regulator
Watchdog & Reset
WDE
RX
K Line transceiver
TX
KIO
ST
IN1
LS-Driver 1
OUT1
IN2
LS-Driver 2
OUT2
AGND
Figure 1
Data Sheet
GND
Block diagram
3
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Pin configuration
3
Pin configuration
3.1
Pin assignment
n.c. 1
1
24
24 n.c.
GND 2
2
23
23
GND
KIO 3
3
22
22
RX
OUT1 4
4
21
21
TX
OUT2 5
5
20
20
IN1
VS 6
6
19
19
IN2
AGND 7
7
18
18 ST
WDE 8
8
17
17 WDI
V5DD 9
9
16
16 NRO
n.c. 10
10
15
15 n.c.
n.c. 11
11
14
14 n.c.
n.c. 12
12
13
13 n.c.
PG-SSOP -24.vsd
Figure 2
Pin configuration
3.2
Pin definitions and functions
Pin
Symbol
Function
1
n.c.
Not connected
2
GND
Power ground
3
KIO
K-line bus connection
4
OUT1
Output channel 1
5
OUT2
Output channel 2
6
VS
Battery voltage: 100 nF ceramic capacitor directly connected at the IC to ground
7
AGND
Analog ground: should be connected to the system logic ground
8
WDE
Watchdog enable: active high, internal pull up
9
V5DD
5 V supply output: connected to external blocking capacitor.
10
n.c.
Not connected
11
n.c.
Not connected
12
n.c.
Not connected
13
n.c.
Not connected
14
n.c.
Not connected
15
n.c.
Not connected
16
NRO
Reset output: open drain, active low
17
WDI
Watchdog input: trigger input for watchdog pulses
Data Sheet
4
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Pin configuration
Pin
Symbol
Function
18
ST
Status signal: output diagnostic signal
19
IN2
Control input channel 2: internal pull down
20
IN1
Control input channel 1: internal pull down
21
TX
Logic level input for data to be transmitted on the K-line bus KIO
22
RX
Logic output of data received from the K-line bus KIO.
23
GND
Power ground
24
n.c.
Not connected
Exposed pad
Should be connected to GND and to the ground plane of the ECU
Data Sheet
5
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
General product characteristics
4
General product characteristics
4.1
Absolute maximum ratings
Table 1
Absolute maximum ratings 1)
Tj = -40 °C to +150 °C; All voltages with respect to ground.
Positive current flowing into pin (unless otherwise specified)
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
Number
Continuous voltage on pin Vs
VS
-0.3
–
40
V
–
4.1.1
Continuous voltage on pin OUT1
VOUT1
-0.3
–
30
V
IN1 = 0 V
4.1.2
Continuous voltage on pin OUT2
VOUT2
-0.3
–
35
V
IN2 = 0 V
4.1.3a
Continuous voltage on pin KIO
VKIO
-1
–
35
V
TX = V5DD
4.1.3b
4.1.4
Voltages
Vx
-0.3
–
5.5
V
2)
Junction temperature
Tj
-40
–
150
°C
–
4.1.5
Storage temperature
Tstg
-55
–
150
°C
–
4.1.6
ESD resistivity to GND, Vs, K-LINE,
OUT1,2
VESD
-4
–
4
kV
HBM3)
4.1.7
ESD resistivity to GND, other pins
VESD
-2
–
2
kV
HBM3)
4.1.8
Electro static discharge voltage
“Charged device model - CDM”
VESD
-500
–
500
V
All pins
CDM4)
4.1.9
Electro static discharge voltage
“Charged device model - CDM”
VESD
-750
–
750
V
Pin 1, 12, 13, 24
(corner pins)
CDM4)
4.1.10
IN1, IN2, V5DD, RxD, TxD, ST, NRO,
WDI, WDE
Temperatures
ESD susceptibility
1)
2)
3)
4)
Not subject to production test, specified by design
For outputs no short circuit is allowed
ESD susceptibility, HBM according to EIA/JESD 22-A114B (1.5 KΩ, 100 pF)
ESD susceptibility, Charged Device Model “CDM” EIA/JESD22-C101-C
Note:
Stresses above the ones listed here may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note:
Integrated protection functions are designed to prevent IC destruction under fault conditions
described in the data sheet. Fault conditions are considered as “outside” normal operating range.
Protection functions are not designed for continuous repetitive operation.
Data Sheet
6
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
General product characteristics
4.2
Functional range
Table 2
Funtional range
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
Number
Supply voltage
VS
6
–
40
V
–
4.2.1
Junction temperature
Tj
-40
–
150
°C
–
4.2.2
Note:
Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics
table.
4.3
Thermal resistance
Table 3
Thermal resistance
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
Junction to case
RthJC
–
6.3
9
K/W Measured to exposed 4.3.1
pad 1)
Junction to ambient
RthJA
–
29
–
K/W
1) 2)
Number
4.3.2
1) Not subject to production test, specified by design.
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The product
(chip+package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70 µm Cu, 2 x 35 µm
Cu). Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.
Data Sheet
7
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Voltage regulator
5
Voltage regulator
5.1
Voltage regulator
The TLE8088EM integrates a voltage regulator for load currents up to 250 mA. The voltage applied to pin VS is
regulated at pin V5DD to 5.0 V with a precision of ±2%. The sophisticated design allows to achieve stable
operation even with ceramic output capacitors down to 470 nF. The voltage regulator features undervoltage
reset, power on reset and watchdog. It is protected against overcurrent, short circuit and overtemperature
conditions.
The low-side switch function and the K-line transceiver are independent of the reset and watchdog signals.
VS
Vref
I VS
+
-
V5DD
IV5DD
e.g. µC
Figure 3
5 V supply
5.2
Power on reset and reset output
Reset output is an open drain output. When the level of VV5DD reaches the reset threshold VRT, the signal at NRO
remains low for the power-on reset delay time TRD. The reset function and timing is illustrated in Figure 4. The
reset reaction time tRR avoids wrong triggering caused by short “glitches” on the V5DD-line. In case of V5DD
power down (VV5DD < VRT for t > tRR) a logic low signal is generated at the pin NRO to reset an external micro
controller. The level of the reset threshold for increasing VV5DD is for the hysteresis (VRH) higher than the level
for decreasing VV5DD.
The reset and watchdog signals are for external use and do not affect the state of the channels and K-line
transceiver. The correct functionality of the devices is ensured by an independent voltage monitoring
circuitry.
Data Sheet
8
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Voltage regulator
Vs
t
VV5DD
<
tRR
VRT
V NRO
tRR
tRR
TRD
t
T RD
VNRO_H
V NRO_L
t
Figure 4
Reset function and timing diagram
5.3
Watchdog operation
After power on, the reset output signal at the NRO pin is kept LOW for the power-on reset delay time TRD of typ.
15 ms. With the LOW to HIGH transition of the signal at NRO the micro controller reset is released.
The TLE8088EM integrates a watchdog function. If WDE is connected to low, the watchdog function is
disabled. If the WDE is connected to 5 V or left open, the watchdog function is enabled. A pull up current source
is integrated in the WDE pin.
After the activation of the watchdog function, the timing of the signal on WDI from the micro-controller must
correspond the WD-Period TWD,p specified in the electrical characteristics. A Re-Trigger of the WD-Period is
done with a HIGH-to-LOW transition at the WDI-pin within the time TWD,p.
A HIGH to LOW transition of the watchdog trigger signal on pin WDI is taken as a trigger. To avoid wrong
triggering due to parasitic glitches two HIGH samples followed by two LOW samples (sample period tsam typ.
64 μs ) are decoded as a valid trigger, see Figure 6. A reset is generated (NRO goes LOW) for the time TWR if there
is no trigger pulse during the watchdog period as shown in Figure 5.
Data Sheet
9
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Voltage regulator
Vs
V5DD
t
VRT
t
VNRO
TWR
TRD
Normal operation
t rr
t
Trigger
Window
tsam
t
WDI
1. Correct Trigger
TWD,p
No Trigger
causing reset
t
Figure 5
Watchdog timing diagram
TWD,p
time-out
WDI
Valid trigger
WD period restart
No trigger
WD time-out
No trigger
WD time-out
No trigger
WD time-out
tsam
Figure 6
Data Sheet
Watchdog valid trigger
10
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Voltage regulator
Table 4
Electrical characteristics: voltage regulator
VS = 13.5 V, Tj = -40 °C to +150 °C, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Output V5DD
Output voltage
VV5DD
4.90
5.00
5.10
V
0 mA < IV5DD <
250 mA
6 V < Vs < 40 V
5.3.1
Output current limitation
IV5DD
250
–
650
mA
VV5DD = 0 V
5.3.3
Load regulation
ΔVV5DD,Lo –
–
20
mV
1 mA < IV5DD <
250 mA
5.3.4a
Line regulation
ΔVV5DD,Li
–
–
10
mV
IV5DD = 1 mA;
6 V < Vs < 40 V
5.3.5
Power supply rejection ratio
PSRR
–
60
–
dB
fr = 100 Hz;
Vr = 0.5 Vpp 1)
5.3.6
Output capacitor
CQ
470
–
–
–
nF
1)
5.3.7
ESR(CQ)
–
–
10
Ω
–
RDSon,V5
–
–
1.2
Ω
VS ≥ 4.8 V
I ≤ 250 mA
Iq
–
–
4
mA
IV5DD = 0 A;
5.3.10
CH1,CH2 off, K-line
off
Low level input voltage
VIN,L
–
–
1.00
V
–
5.3.11
High level input voltage
VIN,H
2.00
–
–
V
–
5.3.12
5.3.13
5.3.14
Low drop resistance
5.3.30
Current consumption
Quiescent current
WDE
Hysteresis WDE
VIN,HYS
50
–
250
mV
1)
Input pull up current
IIN_PU_L
-20
-50
-100
µA
VIN = 0 V
IIN_PU_H
-2.40
–
–
µA
VIN = 4.4 V
Low level input voltage
VIN,L
–
–
1.00
V
–
5.3.15
High level input voltage
VIN,H
2.00
–
–
V
–
5.3.16
5.3.17
5.3.18
Watchdog input WDI
Input voltage hysteresis
VIN,HYS
50
–
250
mV
1)
Input pull down current
IIN_PD_H
20
50
100
µA
VIN = 5 V
IIN_PD_L
2.40
–
–
µA
VIN = 0.6 V
Watchdog sampling time
tsam
40
64
130
µs
–
5.3.19
Watchdog period
TWD,p
50
60
70
ms
–
5.3.20
Watchdog reset time
TWR
120
240
360
µs
–
5.3.21
Data Sheet
11
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Voltage regulator
Table 4
Electrical characteristics: voltage regulator
VS = 13.5 V, Tj = -40 °C to +150 °C, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Reset output NRO
Output voltage reset switching
threshold
VRT
4.00
4.25
4.50
V
VV5DD decreasing
5.3.22
Reset hysteresis
VRH
10
–
150
mV
–
5.3.23
Low level output voltage
VNRO,L
–
–
1.10
V
INRO = 1 mA
5.3.24
Leakage current
INRO,LK
–
–
1
µA
VRT = 5 V
5.3.25
Power-on reset delay time
TRD
10
15
20
ms
–
5.3.26
Reset reaction time
tRR
1
4
8
µs
–
5.3.27
TOT
150
–
200
°C
1)
5.3.28
°C
1)
5.3.29
Overtemperature protection
Overtemperature
Overtemperature hysteresis
TOTH
–
20
–
1) Not subject to production test, specified by design.
Data Sheet
12
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Power drivers
6
Power drivers
6.1
Low-side drivers
The power stages are built by N-channel power MOSFET transistors. The channels are universal multichannel
switches but mostly suitable to be used in engine management systems. Within an engine management
system, the best fit of the channels to the typical loads is:
•
Channel 1 for injector, valves or similar sized solenoids with a maximum operation current requirement of
2.6 A
•
Channel 2 for malfunction indication lamps or other resistive loads with a maximum current requirement
of 3 A
Vbat
Vbat
OUT
V
ID
L,
RL
DS
GND
GND
Channel 1
Figure 7
R
V
VDS
DScl
ID
OUT
Channel 2
Low-side switches
Channel 1 has open load detection in off state. If an open load condition persists for a time longer than the
filter time td, an open load will be detected and the ST pin set to low. On the rising edge of the IN1 signal the
ST pin will be released after the time tST,clear, see Figure 9.
In overcurrent situation channel 1 will be switched off and kept latched. Additionally the ST signal will be set
to low after the settling time tST,set,OC. On the falling edge of the IN1 signal the ST pin will be released after the
time tST,clear , see Figure 10. Therefore channel 1 can be switched on again by toggling the IN1 pin.
During an overtemperature event the ST signal is set to low and will turn back to high if the failure condition
is disappeared (see Table 5).
Table 5
Truth table for diagnostics of CH1
Open load
Overcurrent
Overtemperature
ST
Status
0
0
0
1
Normal operation
1
x
x
0
Failure detected
x
1
x
0
Failure detected and latched
Channel 1 is switched off
x
x
1
0
Failure detected and channel 1 is
switched off
Data Sheet
13
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Power drivers
Failure situation
ST
0 = Situation doesn’t
exist
1 = Normal
operation
1 = Situation exists
0 = Failure detected
X = 0 or 1
In overcurrent situation the channel 2 will be switched off, and after typ. 4 ms the channel will be switched on
again. Channel 2 is also overtemperature protected. In overtemperature situation channel 2 will be switched
off and will restart if the junction temperature falls by thermal shutdown hysteresis TOTH.
6.2
Electrical characteristics
Table 6
Electrical characteristics
VS = 13.5 V, Tj = -40 °C to +150 °C: All voltages with respect to ground.
Positive current flowing into pin (unless otherwise specified).
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
Number
On state resistance CH1
RDSon
–
0.60
0.70
Ω
IDnom=1.3 A; Tj =150°C 6.2.1
On state resistance CH2
RDSon
–
1.10
1.20
Ω
IDnom=0.3 A; Tj=150°C 6.2.2
Parallel input pin low level IN1,IN2
VIN,L
–
–
1.00
V
–
6.2.3
Parallel input pin high level IN1,IN2
VIN,H
2.00
–
–
V
–
6.2.4
6.2.5
6.2.6
Output channel resistance
Input characteristics
Parallel input pin hysteresis IN1,IN2
VIN,HYS
50
–
250
mV
1)
Parallel input pin input pull down
current IN1, IN2
IIN_PD_H
20
50
100
µA
VIN = 5 V
IIN_PD_L
2.40
–
–
µA
VIN = 0.6 V
VDScl
30
35
40
V
IOUT1 = 0.02 A
6.2.7
Output leakage current in Off mode,
CH1
IDoff
–
–
3
µA
VDS= 13.5 V; Tj=150°C
1) 2)
6.2.8
Output leakage current in Off mode,
CH2
IDoff
–
–
3
µA
Turn-on delay time CH1
tdON
–
0.25
1
µs
Vs = 13.5 V,
IDS1 = 1.3 A, resistive
load 1) 3)
6.2.10
Turn-on delay time CH2
tdON
–
0.15
1.2
µs
Vs = 13.5 V,
IDS2 = 0.3 A, resistive
load 1)
6.2.11
Clamping voltage
Output clamping voltage CH1
Leakage currents
VDS= 13.5 V; Tj=150°C 6.2.9
1)
Timing
Data Sheet
14
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Power drivers
Table 6
Electrical characteristics (cont’d)
VS = 13.5 V, Tj = -40 °C to +150 °C: All voltages with respect to ground.
Positive current flowing into pin (unless otherwise specified).
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
Number
Turn-off delay time CH1
tdOFF
–
0.65
1.5
µs
Vs = 13,5 V,
IDS1= 1.3 A, resistive
load 1)
6.2.12
Turn-off delay time CH2
tdOFF
–
0.35
1.5
µs
Vs = 13.5 V,
IDS2 = 0.3 A, resistive
load 1)
6.2.13
Turn-on time CH1
tsON
–
0.45
1.2
µs
Vs = 13.5 V,
IDS1 = 1.3 A, resistive
load 1)
6.2.14
Turn-on time CH2
tsON
–
0.20
1
µs
Vs = 13.5 V,
IDS2 = 0.3 A, resistive
load 1)
6.2.15
Turn-off time CH1
tsOFF
–
0.40
1.2
µs
Vs = 13.5 V,
IDS1 = 1.3 A, resistive
load 1)
6.2.16
Turn-off time CH2
tsOFF
–
0.20
1
µs
Vs = 13.5 V,
IDS2 = 0.3A , resistive
load 1)
6.2.17
Output current switch off threshold
CH1
IDS_OC
2.6
–
5
A
6 V < VS < 18 V
6.2.18
Output current switch off threshold
CH2
IDS_OC
3.0
–
6.5
A
6 V < VS < 18 V
6.2.19
Off time of CH2 in current switch off
toff
3
–
8
ms
–
6.2.20
0.5
–
3
µs
–
6.2.21
Overcurrent protection
Current switch off filter time CH1, CH2 tCL_f
Open load diagnosis for CH 1 in OFF state
Open load detection threshold
voltage for CH1
VDSol
2.00
2.80
3.20
V
–
6.2.22
Output pull-down diagnosis current
IDpd
50
100
150
mA
VDS = 13.5 V
6.2.23
Open load diagnosis delay time
td
100
–
200
µs
–
6.2.24
Low level output voltage
VOUT_L
–
–
0.4
V
INRO = 100 mA
6.2.25
High level output voltage
VOUT_H
V5DD –
– 0.4
–
V
INRO = –100 mA
6.2.26
–
20
µs
1)
6.2.27
µs
1)
6.2.28
Status signal
Status settling time after overcurrent tST,set,OC
Status clear time
Data Sheet
tST,clear
–
–
–
15
20
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Power drivers
Table 6
Electrical characteristics (cont’d)
VS = 13.5 V, Tj = -40 °C to +150 °C: All voltages with respect to ground.
Positive current flowing into pin (unless otherwise specified).
Parameter
Symbol
Values
Unit Note or
Test Condition
Min. Typ. Max.
TOT
150
Number
Overtemperature protection
Overtemperature
Overtemperature hysteresis
TOTH
–
–
20
200
–
°C
1)
6.2.29
°C
1)
6.2.30
1) Not subject to production test, specified by design.
2) In OFF mode open load diagnosis pull down current active.
3) Definition see Figure 8.
VINx
50%
VOUTx
t
VBATT
80%
20%
t
tdON
Figure 8
tsON
t dOFF
tsOFF
Timing
IN1
VDSol
Open
Load
VDS
ST
t
td
Figure 9
Data Sheet
t ST,clear
Open load detection
16
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Power drivers
IN1
IDS_OC
Over
Current
Switch-off
I DS
tCL_f
ST
t
t ST,set,OC
Figure 10
Data Sheet
t ST,clear
Overcurrent detection
17
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
K-line
7
K-line
7.1
K-line
The K-line module is a serial link bus interface device designed to provide bi-directional half-duplex
communication interfacing. It is designed to interface vehicles via the special ISO K-line and meets the ISO
standard 9141. The device’s K-line bus driver’s output is protected against bus shorts.
K-line module transforms 5.0 V micro-controller logic signals to battery level logic signals and vice versa. The
over current limitation limits the current to a specified limit. In case of overtemperature on OUT1 the low-side
switch and the output stage KIO will be switched off and can only be re-activated if the temperature has
decreased below the minimum hysteresis value.
VS
RX
KIO
V5DD
TX
Driver &
Protection
Figure 11
Data Sheet
K-line block diagram
18
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
K-line
Table 7
Electrical characteristics: K-line
VS = 13.5 V, Tj = -40 °C to +150 °C: All voltages with respect to ground.
Positive current flowing into pin (unless otherwise specified).
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Output RX
Low level output voltage
VRX,L
–
–
0.4
V
IRX = 100 mA
7.1.1
High level output voltage
VRX,H
V5DD0.4
–
–
V
IRX = -100 mA
7.1.2
Input pin low level
VTX,L
–
–
1.00
V
–
7.1.3
Input pin high level
VTX,H
3.20
–
–
V
–
7.1.4
7.1.5
Input TX
Input pin hysteresis
VTX,HYS
280
500
700
mV
1)
Input pin pull up current
IIN_PU
-70
–
-150
µA
VTX = 0
7.1.6
Low level output voltage
VKIO,L
–
–
1.4
V
TX = low,
RKIO = 480 W
7.1.7
Current limitation
IKIO(lim)
40
–
140
mA
–
7.1.8
Output pull-down current
IKIO,PD
5
–
15
µA
TX = high
7.1.9
Input low voltage
VIN_L
–
–
0.4*Vs
V
–
7.1.10
Input high voltage
VIN_H
0.6*Vs
–
–
V
–
7.1.11
Input threshold hysteresis
VIN_Hys
0.02*Vs –
0.175* V
Vs
–
7.1.12
7.1.13
KIO input / output
KIO input comparator
Transfer characteristics KIO->RX and TX->KIO
CRX = 25 pF; RKIO = 540 Ω; CKIO RX
fRKIO
–
–
500
kHz
CKIO = 0 pF
Transmission frequency TX->KIO
fTKIO
–
–
100
kHz
–
CRX,load = 1.6 pF
7.1.14
2)
Off delay / rise time
KIO->RX
tdrR
0.05
–
0.5
µs
7.1.15
Off delay / rise time
TX->KIO
tdrT
0.05
–
0.5
µs
On delay / fall time
KIO->RX
tdfR
0.05
–
0.5
µs
CRX,load = 1.6 pF 2) 7.1.17
On delay / fall time
TX->KIO
tdfT
0.05
–
0.5
µs
CKIO,load = 1.6 pF 2) 7.1.18
CKIO,load = 1.6 pF 1) 7.1.16
2)
1) Not subject to production test, specified by design.
2) For definition see Figure 12.
Data Sheet
19
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
K-line
VTX
50%
V K IO
tdrT
t
tdfT
90%
50%
10%
t
V RX
90%
10%
t drR
Figure 12
Data Sheet
tdfR
t
K-line transfer characteristics
20
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Application information
8
Application information
Note:
The following information is given as a hint for the implementation of the device only and shall not
be regarded as a description or warranty of a certain functionality, condition or quality of the device.
ECU VBAT
VBAT
LOAD
resistive
LOAD
inductive
510Ω
100µF
1
2
3
4
5
6
7
to µC
to Loads
2.2nF
8
9
10
11
4.7nF
4.7nF
470nF
12
100nF
Close to
IC pin
nc (1)
GND
KIO
OUT2
OUT1
VS
AGND
WDE
V5DD
nc (1)
(1)
nc
nc (1)
TLE 8088
nc (1)
GND
RX
TX
IN1
IN2
ST
WDI
NRO
nc (1)
(1)
nc
nc (1)
24
23
22
21
20
19
18
to µC
17
16
15
14
13
(1) Pins marked as not connected (nc) are internally not bonded. Related pads can be used for facilitating the PCB routing.
Figure 13
Application diagram
Note:
This is a very simplified example of an application circuit. The function must be verified in the real
application.
8.1
Further application information
•
For further information you may contact http://www.infineon.com/
Data Sheet
21
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Package outlines
2)
0.2
M
0.1 C D
3.9 ±0.11)
0.08 C
Seating Plane
C A-B D 24x
0.64 ±0.25
6 ±0.2
D
0.2
8˚ MAX.
2x
0.19 +0.06
0.35 x 45˚
1.7 MAX.
C
0.65
M
D
Bottom View
A
24
1
12
24
13
13
1
12
B
8.65 ±0.1
Index Marking
2.65 ±0.25
0.25 ±0.05
Stand Off
(1.47)
Package outlines
0.1+0
-0.1
9
6.4 ±0.25
0.1 C A-B 2x
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Does not include dambar protrusion of 0.13 max.
Figure 14
PG-SSOP-24
PG-SSOP-24-4-PO V01
1)
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products, and to be compliant
with government regulations, the device is available as a green product. Green Products are RoHS-Compliant
(i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
For further information on alternative packages, please visit our website:
http://www.infineon.com/packages.
1) Dimensions in mm
Data Sheet
22
Rev. 1.1
2021-01-15
TLE8088EM
Engine management IC for Small Engines
Revision history
10
Revision history
Revision
Date
Changes
1.0
2012-10-01
Datasheet release
1.1
2021-01-15
Parameter updates and improvements:
4.1.3.a and 4.1.3b: 4.1.3 split; Maximum rating of KIO - minimum value reduced.
4.2.1: VS functional range increased.
5.3.1: VDD functional range condition increased.
5.3.2: Removed, as obsolete.
5.3.4a: Load regulation improved, 5.3.4 removed.
5.3.5: Line regulation voltage range condition increased.
5.3.30: Re-defintion of low drop operation, 5.3.8, 5.3.9a and 5.3.9b removed,
low drop resistance value added.
Editorial changes.
Data Sheet
23
Rev. 1.1
2021-01-15
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2021-01-15
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2021 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
Document reference
IMPORTANT NOTICE
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event be regarded as a guarantee of conditions or
characteristics ("Beschaffenheitsgarantie").
With respect to any examples, hints or any typical
values stated herein and/or any information regarding
the application of the product, Infineon Technologies
hereby disclaims any and all warranties and liabilities
of any kind, including without limitation warranties of
non-infringement of intellectual property rights of any
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In addition, any information given in this document is
subject to customer's compliance with its obligations
stated in this document and any applicable legal
requirements, norms and standards concerning
customer's products and any use of the product of
Infineon Technologies in customer's applications.
The data contained in this document is exclusively
intended for technically trained staff. It is the
responsibility of customer's technical departments to
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information given in this document with respect to
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