TLE 8366EV Infineon Technologies, TLE 8366EV Datasheet - Page 13

• Manufacturer Part Number: TLE 8366EV
• Manufacturer: Infineon Technologies

Specifications of TLE 8366EV

• Packages: PG-DSO-8
• Comment: VQ adjustable from 0.6V up to 16V; Tolerance 2% up to 1000mA; DSO-8 EP
• Vq (max): adjustable
• Iq (max): 1,800.0 mA
• Iq (typ): 7,000.0 µA
• Output: Buck Converter

7
7.1
The oscillator supplies the device with a constant frequency. The power switch will be switched on and off with a
constant frequency. The duty-cycle is derived from this frequency and some safety functions are synchronized to
this frequency.
The internal sawtooth signal used for the PWM generation has an amplitude proportional to the input supply
voltage (feedforward).
The turn-on frequency can optionally be set externally via the ’SYNC’ pin. In this case the synchronization of the
PWM-on signal refers to the falling edge of the ’SYNC’-pin input signal. In case the synchronization to an external
clock signal is not needed the ’SYNC’ pin should be connected to GND.
Leaving pin SYNC open or short-circuiting it to GND leads to normal operation with the internal switching
frequency.
7.2
Electrical Characteristics: Buck Regulator
V
Pos.
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
1) Synchronization of PWM-on signal to falling edge.
Data sheet
S
= 6.0 V to 40 V,
Parameter
Oscillator frequency
Synchronization capture range
SYNC signal high level valid
SYNC signal low level valid
SYNC input internal pull-down
Module Oscillator
Description
Electrical Characteristics Module Oscillator
T
j
= -40 C to +150 C, all voltages with respect to ground (unless otherwise specified)
Symbol
f
f
V
V
R
osc
sync
SYNC,hi
SYNC,lo
SYNC
13
Min.
330
200
2.9
0.60
Limit Values
370
Typ.
1.0
Max.
420
530
0.8
1.4
kHz
kHz
Unit
V
V
M
Rev. 1.0, 2009-05-18
Conditions
V
1)
1)
V
Module Oscillator
SYNC
SYNC
= 0V
= 5V
TLE8366