FAN6753_11 Datasheet, PDF (6/12 Pages) Fairchild Semiconductor – Highly Integrated Green-Mode PWM Controller

Electrical Characteristics (Continued)
V_DD=15V and T_A=25C unless otherwise noted.
Symbol
Parameter
Conditions
LATCH Section
V_LATCHth Latch-Off Threshold Voltage
t_D-LATCH Latch-Off De-bounce Time
I_LATCH Output Current from LATCH Pin
Feedback Input Section
A_V
Z_FB
V_FB-OPEN
V_FB-OLP
t_D-OLP
Input Voltage to Current-Sense Attenuation
Input Impedance
Output High Voltage
FB Open-Loop Trigger Level
Delay Time of FB Pin Open-Loop Protection
V_LATCHth > 5.2V, after
100µs Latch Off
V_LATCH< V_LATCHth
FB Pin Open
V_FB-N
Green-Mode Entry FB Voltage
Min. Typ. Max. Units
5.0 5.3 5.6
V
40 100 160 µs
92 100 108 µA
1/4.5 1/4.0 1/3.5 V/V
4
7
kΩ
5.0 5.3 5.6
V
4.6 4.8 5.0
V
50
56
62
ms
2.8 3.0 3.2
V
V_FB-G
Green-Mode Ending FB Voltage
2.2 2.4 2.6
V
I_FB-ZDC Zero Duty-Cycle FB Current
Current-Sense Section
Z_SENSE Input Impedance
1.5 mA
12
KΩ
V_STHFL Current Limit Flatten Threshold Voltage
Duty>40%
0.87 0.90 0.93 V
V_STHVA Current Limit Valley Threshold Voltage
t_PD
Delay to Output
t_LEB
Leading-Edge Blanking Time
t_SS
Period During Soft-Startup Time
GATE Section
V_STHFL–V_STHVA
Duty=0%
Startup Time
0.30 0.34 0.38 V
100 200 ns
100 140 180 ns
4.3 5.0 5.7 ms
DCY_MAX Maximum Duty Cycle
V_GATE-L Gate Low Voltage
V_GATE-H Gate High Voltage
t_r
Gate Rising Time
t_f
Gate Falling Time
I_GATE-SOURCE Gate Source Current
V_GATE-CLAMP Gate Output Clamping Voltage
Over-Temperature Protection Section (OTP)
T_OTP
Protection Junction Temperature⁽³⁾
T_Restart Restart Junction Temperature⁽⁴⁾
V_DD=15V, I_O=50mA
V_DD=12V, I_O=50mA
V_DD=15V, C_L=1nF
V_DD=15V, C_L=1nF
V_DD=15V, GATE=6V
V_DD=22V
60
65
70
%
1.5
V
8
V
150 250 350 ns
30
50
90
ns
250
mA
18
V
+135
°C
T_OTP-
25
°C
Notes:
3. When activated, the output is disabled and the latch is turned off.
4. The threshold temperature for enabling the output again and resetting the latch, after over-temperature protection
has been activated.
© 2009 Fairchild Semiconductor Corporation
FAN6753 • Rev. 1.0.3
6
www.fairchildsemi.com