參數(shù)資料
型號(hào)： TLE8242-2
廠商： INFINEON TECHNOLOGIES AG
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PQFP64
封裝： GREEN, PLASTIC, LQFP-144
文件頁(yè)數(shù)： 56/78頁(yè)
文件大?。?/td> 1589K
代理商： TLE8242-2
TLE8242-2
Overview
Data Sheet
6
Rev. 1.0, 2010-02-09
Figure 1
External Circuit Diagram for Direct PWM Mode Operation
1.3.2
Constant Current Mode Operation
During constant current operation, the POSx and NEGx pins must be connected to the circuit in the configuration
shown in Figure 2.
Note: An external recirculation diode is required in this configuration otherwise the IC may be damaged.
Figure 2
External Circuit Diagram for Constant Current Mode Operation
During constant current operation, the PWM control signal driven at the OUTx pin is controlled by the control loop
shown in Figure 3. The PWM Frequency is programmed via the SPI message # 8. In this message the main period
10nF
0.2
P
W
M
or
O
n/O
ff
S
ole
no
id
Vs
POSx
NEGx
OUTx
Electronic
Module
10nF
0.2
C
ons
ta
nt
C
ur
re
nt
So
le
no
id
Vs
POSx
NEGx
OUTx
Electronic
Module
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