User Manual
5 of 14
Rev.1.00
2020-12-03
TLD2252-2EP rear combination lamp evaluation board
User Manual
TLD2252-2_RCL_EVAL description
Jumper
Description and configuration
•
Open: when a fault is detected both channels will switch off
•
CD: when a fault is detected both channels will switch off after a delay time
t
D(set)
.
Delay time is set by CD capacitor
JPPWMI
PWMI connection
•
CPWMI1 (120 nF): sets the PWM frequency to 220 Hz and duty cycle 10%
•
CPWMI2 (68 nF): sets the PWM frequency to 400 Hz and duty cycle 10%
•
GND: duty cycle is 100%
The duty cycle is set by the RPWM_SET (4.53 k
Ω
) and RPWM_RST (41.2 k
Ω
) resistors
JPOUT
On board load connection
•
OUT1: connects OUT1 to on-board load. Leave open to connect to external load
•
OUT2: connects OUT2 to on-board load. Leave open to connect to external load
1.3
On-board load
The TLD2252-2_RCL_EVAL board is equipped with on-board LED load (on the bottom side) for easy evaluation.
Figure 3
On-board LED load
The on-board LED load shown in Figure 3 is described in Table 4.
Table 4
On-board LED load
Load
Description
LED OUTPUT
Load 1
3 x 1 LEDs in series; used when OUT1 of JPOUT is bypassed
Load 2
3 x 1 LEDs in series; used when OUT2 of JPOUT is bypassed
