BCR450 Datasheet, PDF (8/16 Pages) Infineon Technologies AG – LED Driver IC

BCR450
LED Driver IC
Electrical Characteristics
3.2
Digital Signals
All parameters are tested at 25 °C, unless otherwise specified
Table 6 Digital Control Parameter (EN)
Parameter
Symbol
Min.
PWM signal frequency
f_PWM
PWM Duty cycle
t_dutyPWM
5
PWM voltage
EN input capacitance to GND
U_PWM
C_EN
Values
Typ.
Max.
1000
5
130
Unit
Hz
%
V
pF
Note /
Test Condition
t_dutycycle = 1%;
signal level
reaches 100% in
on and off mode
F = 5 kHz; signal
level reaches
100% in on and off
mode
EN = 0 V
3.3
Transient Parameters
8 V < V_S < 27 V; - 40 °C < T_J < 150 °C, all voltages with respect to ground; current directions as given in Figure 2;
unless otherwise specified
All parameters are tested at 25 °C, unless otherwise specified
Table 7 Digital Control Parameter (EN)
Parameter
Symbol
Values
Min.
Typ.
Response Time
T_ON
Max.
10
T_OFF
70
Unit Note / Test Condition
μs
EN: 0 -> 5 V @ t_rise < 20 ns
t_risetime @(10...90%) * V_sense
(I_out ~ 15 mA);R_sense = 10 Ω
μs
EN: 5 V -> 0 @ t_fall < 20 ns
t_falltime @(90...10%) * V_sense
(I_out ~ 15 mA); R_sense = 10 Ω
Datasheet
8
Rev. 3.1, 2013-02-21