Datasheet

Electrical characteristics L6599A
10/37 DocID15308 Rev 8
Symbol Parameter Test condition Min. Typ. Max. Unit
DIS function
I
DIS
Input bias current V
DIS
= 0 to Vth - - -1 µA
Vth Disable threshold Voltage rising
(1)
1.78 1.85 1.92 V
Oscillator
D Output duty cycle Both HVG and LVG 48 50 52 %
f
osc
Oscillation frequency
- 58.26061.8
kHz
R
RFmin
= 2.7 k 240 250 260
T
D
Deadtime Between HVG and LVG 0.2 0.3 0.4 µs
V
CFp
Peak value - - 3.9 - V
V
CFv
Valley value - - 0.9 - V
V
REF
Voltage reference at pin 4
(1)
1.93 2 2.07
V
I
REF
= -2 mA
(1)
1.93 2 2.07
K
M
Current mirroring ratio - 1 - A/A
PFC_STOP function
I
leak
High level leakage current
V
PFC_STOP
= Vcc,
V
DIS
= 0 V
--1µA
R
PFC_STOP
ON-state resistance
I
PFC_STOP
= 1 mA,
V
DIS
= 1.5 V
- 130 200 
V
L
Low saturation level
I
PFC_STOP
= 1 mA,
V
DIS
= 1.5 V
--0.2V
Soft-start function
I
leak
Open-state current V(Css) = 2 V - - 0.5 µA
R Discharge resistance V
ISEN
> V
ISENx
-120- 
Standby function
I
DIS
Input bias current V
DIS
= 0 to Vth - - -1 µA
Vth Disable threshold Voltage falling
(1)
1.2 1.24 1.28 V
Hys Hysteresis Voltage rising - 50 - mV
Delayed shutdown function
I
leak
Open-state current V(DELAY) = 0 - - 0.5 µA
I
CHARGE
Charge current
V
DELAY
= 1 V,
V
ISEN
= 0.85 V
100 150 200 µA
Vth
1
Threshold for forced
operation at max. frequency
Voltage rising
(1)
1.98 2.05 2.12 V
Vth
2
Shutdown threshold Voltage rising
(1)
3.35 3.5 3.65 V
Vth
3
Restart threshold Voltage falling
(1)
0.3 0.33 0.36 V
Table 5. Electrical characteristics (continued)