MB39C604 Datasheet, PDF (8/36 Pages) Cypress Semiconductor – PSR topology in an isolated flyback circuit

MB39C604
6. Electrical Characteristics
Table 4. Electrical Characteristics
Parameter
Symbol Pin
Condition
UVLO
UVLO Turn-on
threshold voltage
V_TH
UVLO Turn-off
threshold voltage
V_TL
VDD -
VDD -
Startup current
I_START
VDD
V_VDD = 7V
Zero energy
threshold voltage
Zero energy
threshold voltage
V_TZETL
V_TZETH
TZE TZE = "H" to "L"
TZE TZE = "L" to "H"
TRANSFORMER
ZERO ENERGY
DETECTION
TZE clamp voltage
V_TZECLAMP
OVP threshold voltage V_TZEOVP
TZE
TZE
I_TZE = -10 µA
-
OVP blanking time
t_OVPBLANK
TZE -
TZE input current
I_TZE
Source current
I_SO
COMPENSATION
Trans conductance
gm
TZE
V_TZE = 5V
COMP
V_COMP = 2V, V_CS = 0V
V_DIM = 1.85V
COMP V_COMP = 2.5V, V_CS = 1V
ADJ voltage
V_ADJ
ADJ -
ADJUSTMENT
CURRENT
SENSE
ADJ source current
I_ADJ
ADJ time
T_ADJ
Minimum switching
period
T_SW
OCP threshold voltage V_OCPTH
OCP delay time
t_OCPDLY
CS input current
I_CS
ADJ
TZE
DRV
TZE
DRV
CS
V_ADJ = 0V
T_ADJ (R_ADJ = 51 kΩ)
- T_ADJ (R_ADJ = 9.1 kΩ)
-
-
CS
-
CS
V_CS = 5V
(Ta = +25°C, V_VDD = 12V)
Value
Min Typ Max
Unit
12.25 13
13.75 V
7.55 7.9 8.5
V
-
65
160
µA
-
20
-
mV
0.6
0.7 0.8
V
-200 -160 -100 mV
4.15 4.3 4.45 V
0.6
1
1.7
µs
-1
-
+1
µA
-
-27 -
µA
-
96
-
µA/V
1.81 1.85 1.89 V
-650 -450 -250 µA
490
550 610
ns
6.75 7.5 8.25 µs
1.9
2
2.1
V
-
400 500
ns
-1
-
+1
µA
Document Number: 002-08441 Rev.*A
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