tle8242 Infineon Technologies Corporation, tle8242 Datasheet - Page 19

• Manufacturer Part Number: tle8242
• Description: 8 Channel Fixed Frequency Constant Current Control With Current Profile Detection
• Manufacturer: Infineon Technologies Corporation

Figure 8
The TEST, SCI3, SCO2, SCO3, and AMUX pins are used during IC level test. These pins should be connected
directly to ground for normal device operation.
The FAULT pin is an open drain output pin. This pin will be pulled low by the device when an unmasked fault has
been detected. The fault masks are programmed via SPI message #1.
Electrical Characteristics:
V5D = 4.75V to 5.25V, Vbat = 5.5V to 42V,
current flowing into pin (unless otherwise specified)
Pos.
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
5.2.10
Data Sheet
PHASE_SYNC
PWM/32 CLK
Parameter
Logic input low voltage
Logic input high voltage
Logic output low voltage
Logic output high voltage
Pull down digital input (SI, CLK,
SCK, PHASE_SYNC, ENABLE)
Pull up digital input (CS_B,
RESET_B)
Fault pin voltage
Fault pin current
CLK high time (rise 2.0V to fall
2.0V)
CLK low time (fall 0.8V to rise 0.8V)
OUTx
Phase Synchronization Diagram
norm al
turn off
tim e
T1
T
j
Symbol
V
V
V
V
I
I
V
I
t
t
14
15
= -40 °C to +150 °C, all voltages with respect to ground, positive
pd
pu
fault,max
gate turns off
on-tim e cut
short
ILMAX
IHMIN
OLMAX
OHMIN
fault.low
T1
19
Functional Description and Electrical Characteristics
Min.
–
2.0
–
0.8*V_
SIGNAL
10
-50
–
2.0
8
8
Program m ed delay =
8/32 PWM periods
Limit Values
Typ.
–
–
–
–
–
–
–
–
–
–
Max.
0.8
–
0.2
–
50
-10
0.4
–
–
Unit
V
V
V
V
µA
µA
V
mA
ns
ns
Rev. 1.0, 2009-02-25
Conditions
I
I
V
V
drain from
V_SIGNAL)
Active state;
I
Active state;
V
L
L
fault
in
in
fault
=200µA
=-200µA
=V_SIGNAL
=0V (Current
=2mA
=0.4V
TLE8242