參數(shù)資料
型號(hào)： TLE7242-2G
廠商： INFINEON TECHNOLOGIES AG
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： GREEN, PLASTIC, DSO-28
文件頁(yè)數(shù)： 6/50頁(yè)
文件大?。?/td> 1210K
代理商： TLE7242-2G
TLE7242-2G
Functional Description and Electrical Characteristics
Data Sheet
14
Rev. 1.0, 2008-07-09
5
Functional Description and Electrical Characteristics
Note: The listed characteristics are ensured over the operating range of the integrated circuit.
Typical characteristics specify mean values expected over the production spread. If not otherwise specified,
typical characteristics apply at TA = 25
oC and the given supply voltage.
5.1
Supply and Reference
The device includes a power-on reset circuit. This feature will disable the channels and reset the internal registers
to their default values when the voltage on V5A and/or V5D are below their respective reset thresholds.
The V5D pin and GND_D pin are the supply and ground pins for the digital circuit blocks and the OUTx pin driver
circuits. The current through these pins contain high frequency components. Decoupling with ceramic capacitors
and careful PCB layout are required to obtain good EMC performance.
The V5A pin and GND_A pin are the supply and ground pins for the analog circuit blocks.
The V_SIGNAL pin supplies the SPI output pin (SO) and is the source voltage for the pull up currents on the CS_B
and RESET_B pins. V_SIGNAL should be connected to the I/O supply of the microcontroller (3.3V or 5.0V).
The BAT pin is an input pin used to detect over voltage faults. This pin is not a power supply input. A series resistor
should be connected between this pin and the solenoid supply voltage for transient protection.
Electrical Characteristics:
V5D = 4.75V to 5.25V, Vbat = 5.5V to 42V,
T
j = -40 °C to +150 °C, all voltages with respect to ground, positive
current flowing into pin (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Typ.
Max.
5.1.1
Undervoltage reset (internally
triggered)
V
V5A
3.5
–
4.5
V
Internal reset
occurs if V5A is
under the
undervoltage limit
5.1.2
Undervoltage reset (internally
triggered)
V
V5D
1.0
–
4.5
V
Internal reset
occurs if V5D is
under the
undervoltage limit
5.1.3
V5D supply current
I
V5D
––30
50
mA
f
CLK=20MHz
f
CLK=40MHz
5.1.4
V5A supply current
I
V5A
––25
mA
5.1.5
V_SIGNAL supply current
I
V_SIGNAL
–
1.0
mA
SO pin in hi-Z state,
digital inputs in
default state
5.1.6
VBAT current
I
VBAT
–
150
50
5
A
full operating range
V5A=5V, BAT=14V1)
V5A=0V, BAT=14V1)
1) Not subject to production test, specified by design.
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