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PDF TLE6209R Data sheet ( Hoja de datos )
| Número de pieza | TLE6209R | |
| Descripción | 7 A H-Bridge for DC-Motor Applications | |
| Fabricantes | Infineon Technologies AG | |
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7 A H-Bridge for DC-Motor Applications
Data Sheet
TLE 6209 R
1 Overview
1.1 Features
• Delivers up to 6 A continuous and 7 A peak current
• Optimized for DC motor management applications
• Very low RDS ON of typ. 150 mΩ @ 25 °C per switch
• Operates at supply voltages of up to 40V
P-DSO-20-12
• Overvoltage Protection against transients up to 45 V
• Outputs fully short circuit protected
• Standard SPI-Interface, daisy chain capability
• Adjustable chopper current regulation of up to 7 A
• Temperature monitor with prewarning, warning and shutdown
• Over- and Undervoltage-Lockout
• Open load detection
• Detailed load failure diagnosis by SPI
• Minimized power dissipation due to active free-wheeling
• Low EMI due to voltage slope regulation
• Very low current consumption (typ. 20 µA @ 25 °C) in stand-by (Inhibit) mode
• Enhanced power P-DSO-Package
Type
TLE 6209 R
Ordering Code
Q67007-A9488
Package
P-DSO-20-12
Functional Description
The TLE 6209 R is an integrated power H-Bridge with D-MOS output stages for driving
bidirectional loads such as DC-Motors. The design is based on Infineons Smart Power
Technology SPT which allows bipolar, CMOS and power D-MOS devices on the same
monolithic circuit.
Operation modes forward (cw), reverse (ccw) and brake are invoked by two control pins
PWM and DIR. Protection and a reliable diagnosis of overcurrent, openload, short-circuit
to ground, to the supply voltage or across the load are integrated. Detailed diagnostic
information is given via the 8 bit SPI status word. An integrated chopper current limitation
limits the current e.g. to reduce power dissipation during mechanical block of a DC
Data Sheet, Version 3.0
1
2001-10-15
1 page  
TLE 6209 R
2 Circuit Description
2.1 Serial Peripheral Interface (SPI)
The SPI is used for bidirectional communication with a control unit. The 8-bit
programming word or control word (see Table 1) is read in via the SDI serial data input,
and this is synchronized with the serial clock input SCLK. The status word appears
synchronously at the SDO serial data output (see Table 4).
The transmission cycle begins when the chip is selected with the chip-select-not (CSN)
input (H to L). When the CSN input changes from L to H, the word which has been read
into the shift register becomes the control word. The SDO output switches then to tristate
status, thereby releasing the SDO bus circuit for other uses. The SPI allows to parallel
multiple SPI devices by using multiple CSN lines. Due to the full duplex shift register, the
TLE 6209 R can also be used in daisy-chain configuration.
The settings made by the SPI control word become active at the end of the SPI
transmission and remain valid until a different control word is transmitted or a power on
reset occurs. At each SPI transmission, the diagnosis bits as currently valid in the error
logic are transmitted. The behavior of the diagnosis bits is described in Section 2.5.
Table 1
Bit
7
6
5
4
3
2
1
0
Input Data Protocol
Status Register Reset: H = reset
OVLO: H = on, L = off
not used
MSB of 2bit chopper-OFF-time
LSB of 2bit chopper-OFF-time
PWM Operation mode: H = Fast decay, L = Slow decay
MSB of 2 bit chopper current limit
LSB of 2 bit chopper current limit
Data Sheet, Version 3.0
5
2001-10-15
5 Page 
TLE 6209 R
thresholds. As soon as a threshold is reached, the according status bits are set in the
SPI diagnosis word (c.f. Table 5). If the overtemperature shutdown threshold is reached,
the output stages are turned off. The temperature monitoring messages and the over
temperature shutdown are latched and can be reset by the status register reset bit 7 of
the SPI control word or a POR.
2.5.6
Power Supply Fail
The power supply Voltage is monitored for over- and under voltage lockout:
• Under Voltage Lockout
If the supply voltage VS drops below the switch off voltage VUV OFF, all output
transistors are switched off and the power supply fail bit (bit 7 of the SPI diagnosis
word) is set. If VS rises again and reaches the switch on voltage VUV ON, the power
stages are restarted. The error bit, however, is latched and has to be reset by the
status register reset bit 7 of the SPI control word.
• Over Voltage Lockout
If the supply voltage VS rises above the switch off voltage VOV OFF, all output transistors
are switched off and the power supply fail bit (bit 7 of the SPI diagnosis word) is set.
If VS falls again and reaches the switch on voltage VOV ON, the power stages are
restarted. The error bit, however, is latched and has to be reset by the status register
reset bit 7 of the SPI control word.
The OVLO is only active if control bit 6 is H. If the bit is low, the OVLO is deactivated.
2.5.7
Error Flag
Bit 0 of the SPI diagnosis word is an OR of the status bits 1 to 7. It can be read out without
full SPI communication as described in Figure 8.
Data Sheet, Version 3.0
11
2001-10-15
11 Page | ||
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