TH3122KDF MELEXIS [Melexis Microelectronic Systems], TH3122KDF Datasheet

no-image

TH3122KDF

Manufacturer Part Number
TH3122KDF
Description
K-Bus Transceiver with integrated Voltage Regulator
Manufacturer
MELEXIS [Melexis Microelectronic Systems]
Datasheet
Features and Benefits
Ordering Information
Part No.
TH3122
General Description
The TH3122 consists of a low drop voltage
regulator 5V/100mA and a K-Bus transceiver. The
transceiver is suitable for K-Bus systems conform
to ISO 9141.
The combination of voltage regulator and bus
transceiver in combination with the monitoring
3901003122
Rev 004
in normal mode (< 50
K-Bus Transceiver:
Operating voltage V
Very low standby current consumption <100
Linear low drop voltage regulator:
Overtemperature shutdown
Configurable reset time (15ms/100ms) and reset threshold voltage (3.15V / 4.65V)
Low voltage detection at VS
Wake-up by K-BUS traffic and start-up capable independent of EN voltage level
Universal comparator with an input voltage range –24V … 30V and digital output
Load dump protected (40V)
Output voltage 5V± 2%
Output current max. 100mA
Output current limitation
PNP-open emitter driver with slew rate control and current limitation
BUS input voltage -24V ... 30V (independently of V
ISO 9141 and ODBII compliant
Possibility of BUS wake up
S
= 5.5 ... 16 V
A in sleep mode)
Temperature Code
K ( -40ºC to 125ºC )
K-Bus Transceiver with integrated Voltage Regulator
Page 1
A
functions make it possible to develop simple, but
powerful and cheap nodes in K-Bus systems.
The wide output current area and the configurable
reset time and reset voltage works together with
many different microcontrollers.
S
)
Package Code
DF ( SOIC16, 300mil )
Pin Diagram
SOIC16
GND
GND
BUS
VTR
SO
VS
EN
SI
1
2
3
4
5
6
7
8
TH3122
TH3122
16
15
14
13
12
11
10
9
VCC
SENSE
RESET
GND
GND
TxD
RxD
SEN/STA
Dec/04

Related parts for TH3122KDF

TH3122KDF Summary of contents

Page 1

Features and Benefits K-Bus Transceiver: PNP-open emitter driver with slew rate control and current limitation BUS input voltage -24V ... 30V (independently of V ISO 9141 and ODBII compliant Possibility of BUS wake up Operating voltage V = 5.5 ... ...

Page 2

K-Bus Transceiver with integrated Voltage Regulator Functional Diagram VS EN VTR BUS SI 3901003122 Rev 004 Power Supply 7.8V +5V 6.8V Reset-Logic VTR-Logic OSC Wake-up V thH V thL Bus-Logic pnp Control slew rate foldback V THSI_H V THSI_L Figure ...

Page 3

K-Bus Transceiver with integrated Voltage Regulator Functional Description The TH3122 consists of a voltage regulator 5V/100mA and a K-Bus transceiver, which is a bi-directional bus interface device for data transfer between K-Bus and the K-Bus protocol controller. RxD VCC TxD ...

Page 4

K-Bus Transceiver with integrated Voltage Regulator Bit Compare If the signals at the pin TxD and the pin BUS within a specified time t are not identical, the bc transmission will be interrupted. If both signals at TxD and BUS ...

Page 5

K-Bus Transceiver with integrated Voltage Regulator VS V RESEIN VCC t Res RESET Figure 7 - Initialization The input EN has an internal pull down resistor. If EN=high, the internal pull down current is switched off to minimize the quiescent ...

Page 6

K-Bus Transceiver with integrated Voltage Regulator Application Hints Operating during Disturbances The absence GND connection or ground S CC shift either alone or in any combination, do not influence or disturb the communication between other bus ...

Page 7

K-Bus Transceiver with integrated Voltage Regulator Electrical Specification All voltages are referenced to ground (GND). Positive currents flow into the IC. The absolute maximum ratings given in the table below are limiting values that do not lead to a permanent ...

Page 8

K-Bus Transceiver with integrated Voltage Regulator Static Characteristics (V = 5.25 to 16V 4.75 to 5.25V Parameter Linear Regulator Output voltage VCC Supply current, „normal mode“ Supply current, „sleep mode“ Drop-out voltage Output current VCC ...

Page 9

K-Bus Transceiver with integrated Voltage Regulator Static Characteristics (continued) Parameter Comparator SI, SO Threshold low SI Threshold High SI Hysteresis Output voltage low at SO Pull-up current at SO Input VTR Threshold low Threshold high Output current low Output current ...

Page 10

K-Bus Transceiver with integrated Voltage Regulator Dynamic Characteristics (5.25V V 16V, 4.75V V 5.25V, -40° Parameter RESET Reset time Reset rising time K-Bus-Interface Slew rate BUS falling edge Slew rate BUS rising edge Symmetry of Slew rate BUS ...

Page 11

K-Bus Transceiver with integrated Voltage Regulator Pin Description Pin Name VTR 4 GND 5 GND 6 BUS SEN/STA 10 RxD 11 TxD 12 GND 13 GND 14 RESET 15 SENSE ...

Page 12

K-Bus Transceiver with integrated Voltage Regulator Mechanical Specifications DF (SOIC16) Package Dimensions Small Outline Integrated Circiut (SOIC), All Dimension in mm, coplanarity < 0 min 10.1 max 10.5 All Dimension in inch, coplanarity ...

Page 13

K-Bus Transceiver with integrated Voltage Regulator Assembly Information This Melexis device is classified and qualified regarding soldering technology, solderability and moisture sensitivity level, as defined in this specification, according to following test methods: IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification For Nonhermetic ...

Page 14

K-Bus Transceiver with integrated Voltage Regulator Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set ...

Related keywords