L6599ADTR STMicroelectronics, L6599ADTR Datasheet - Page 19

• Manufacturer Part Number: L6599ADTR
• Description: IC RESONANT CONVRTR CTRLR 16SOIC
• Manufacturer: STMicroelectronics

Specifications of L6599ADTR

• Applications: Resonant Converter Controller
• Voltage - Supply: 8.85 V ~ 16 V
• Current - Supply: 3.5mA
• Operating Temperature: 0°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 16
• Operating Supply Voltage: 8.15 V, 10.7 V, 17 V
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• For Use With: 497-10542 - BOARD EVAL BASED ON L6599497-8429 - BOARD ADAPTER L6599/STP12NM50N497-5496 - EVAL BOARD FOR L6599
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 497-8519-2

L6599A
Figure 22. Oscillator's internal block diagram
The following approximate relationships hold for the minimum and the maximum oscillator
frequency respectively:
Equation 1
After fixing CF in the hundred pF or in the nF (consistently with the maximum source
capability of the RFmin pin and trading this off against the total consumption of the device),
the value of RF
cover the entire range needed for regulation, from the minimum value f
voltage and maximum load) to the maximum value f
minimum load):
Equation 2
A different selection criterion will be given for R
will be used (see
min
Section 7.2: Operation at no load or very light
and RF
f
min
=
3
RF
max
⋅
CF
min
Doc ID 15308 Rev 5
will be selected so that the oscillator frequency is able to
1
⋅
=
RF
3
min
⋅
CF
1
⋅
;
f
min
f
max
Fmax
;
=
RF
3
⋅
in case burst-mode operation at no-load
max
max
CF
⋅
(at maximum input voltage and
=
(
RF
f
f
max
RF
min
1
min
min
−
//
load).
1
RF
Application information
max
min
)
(at minimum input
19/36