TLE8386-2EL Datasheet, PDF (14/32 Pages) Infineon Technologies AG – Basic Smart Boost Controller

TLE8386-2EL
Oscillator and Synchronization
6.2
Electrical Characteristics
V_IN = 6V to 40V; T_j = -40 °C to +150 °C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Oscillator:
6.2.1 Oscillator Frequency
6.2.2 Oscillator Frequency
Adjustment Range
6.2.3 FREQ Supply Current
f_FREQ
f_FREQ
I_FREQ
250
300
350
kHz R_FREQ = 20kΩ
100 –
700 kHz 17% internal tolerance +
external resistor
tolerance
–
–
-700
µA
V_FREQ = 0 V
Synchronization
6.2.4 SYNC input internal pull-
R_SYNC
150
250
350
kΩ
V_SYNC= 5V
down
6.2.5
6.2.6
Maximum Duty Cycle
Maximum Duty Cycle
D_MAX,fixed 90
93
95
%
Fixed frequency mode
D_MAX,sync 88
–
–
%
Synchronization mode,
ratio between
synchronization and
internal frequency (set
by resistor) is 0.8 to 1.2
6.2.7
Synchronization Frequency f_SYNC
Capture Range
250 –
700 kHz ratio between
synchronization and
internal frequency (set
by resistor) is 0.8 to 1.2
6.2.8
Synchronization Signal Duty T_{D_SYNC} 20
cycle
80
%
6.2.9 Synchronization Signal
V_SYNC,H 3.0
–
–
V
1)
High Logic Level Valid
6.2.10 Synchronization Signal
V_SYNC,L
–
–
0.8
V
1)
Low Logic Level Valid
1) Synchronization of external SWO ON signal to falling edge
Data Sheet
12
Rev. 1.0, 2010-10-25