TLF51801ELV Datasheet, PDF (17/29 Pages) Infineon Technologies AG – 10 A synchronous DC/DC Step-Down Controller

TLF51801ELV
Module Oscillator
6.2
Electrical Characteristics Module Oscillator
Electrical Characteristics: Module Oscillator
V_S = 6.0 V to 40 V, T_j = -40°C to +150°C, all voltages with respect to ground (unless otherwise specified)
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
Oscillator:
6.2.1
6.2.2
Oscillator Frequency
Oscillator Frequency
Adjustment Range
f_FREQ
f_FREQ
250
300
350
kHz R_FREQ = 20kΩ
100 –
700 kHz 17% internal
tolerance + external
resistor tolerance
6.2.3 FREQ Supply Current
I_FREQ
–
–
800
µA
V_FREQ = 0 V
Synchronization
6.2.4 Synchronization Frequency
Capture Range
f_SYNC
350 –
700
kHz ¹⁾
6.2.5 Synchronization Signal Duty cycle D_SYNC 20
6.2.6 Synchronization Signal
High Logic Level Valid
V_SYNC,H 3.0
–
80
%
–
V
2)
6.2.7 Synchronization Signal
Low Logic Level Valid
V_SYNC,L –
–
0.8
V
2)
1) Synchronization frequency out of the specified range leads to complete malfunction of the device
2) Synchronization of external UG ON signal to falling edge
Data sheet
17
Rev. 1.0.1, 2013-04-15