FAN6204 Fairchild Semiconductor, FAN6204 Datasheet - Page 5

• Manufacturer Part Number: FAN6204
• Description: FAN6204 is a secondary-side synchronous rectification (SR) controller to drive SR MOSFET for improving efficiency
• Manufacturer: Fairchild Semiconductor

© 2010 Fairchild Semiconductor Corporation
FAN6204 • Rev. 1.0.1
Electrical Characteristics
Unless otherwise specified, V
V
Output Driver Section
LPC Section
V
V
t
t
t
V
I
t
PD_HIGH_LPC
PD_LOW_LPC
V
DELAY-COMP
LPC-SOURCE
V
Symbol
MAX-PERIOD
I
DD-OVP-HYST
V
LPC-SOURCE
LPC-TH-HIGH
t
V
DD-GREEN
V
GATE-PULL-
V
t
V
VDD-OVP
PMOS-ON-
EN-CLAMP
t
I
PMOS-ON
BNK-DIS
I
INHIBIT
DD-OVP
DD-OFF
DD-OP
DD-ST
LPC-EN
V
V
V
HIGH
t
DD-ON
HYS
V
BNK
t
t
OP
OH
OL
R
F
Z
Continuously Operating Voltage
Turn-On Threshold Voltage
Turn-Off Threshold Voltage
Operating Current
Operating Current in Green Mode
Startup Current
V
Hysteresis Voltage for V
V
Gate Output Clamp Voltage
Output Voltage Low
Output Voltage High
Rising Time
Falling Time
Propagation Delay to OUT HIGH
(LPC Trigger)
Propagation Delay to OUT LOW
(LPC Trigger)
Limitation between LPC Rising Edge to Gate Falling Edge
Internal PMOS Turn-On to Pull-HIGH Gate
Hysteresis Voltage On
Gate Inhibit Time
Gate Pull-HIGH Voltage
Blanking Time for Charging CT
Sampling Continuous Time for t
LPC Lower Clamp Voltage
LPC Source Current
SR Enabled Threshold Voltage
SR Enable Threshold Clamp
Voltage
Threshold Voltage on LPC Rising
Edge
Blanking Time LPC is HIGH
During SR Gate Turn-On Period
DD
DD
Over-Voltage Protection
OVP Debounce Time
Parameter
(3)
DD
=4.5V~25V and T
(3)
DD
OVP
BNK
Compensation
A
V
C
V
V
V
V
V
V
V
V
t
t
M2 Option (Enable)
V
Source I
V
V
HIGH
V
V
0.05Vo+0.05, V
Prevent LPC Spike to Turn-Off
Gate
=-40°C ~ 105°C.
R
F
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
LPC
LPC-EN
LPC-HIGH
LPC-EN
ISS
: 100%~90%, V
: 0V~2V, V
=15V, L
=15V
< V
=6V, I
=6V, I
=12V, C
=6V, C
=12V, C
=6V, C
=5V
=6000pF
=0V
x 0.83< 2V, V
(3)
=V
=2V at V
DD-ON
LPC
5
=1.2V
O
O
LPC-HIGH
L
L
=50mA
=50mA
Conditions
=5µA
PC
=6nF, OUT=0.4V~4V
=6nF, OUT=4V~0.4V
L
L
DD
=6nF, OUT=2V~9V
=6nF, OUT=9V~2V
(3)
=50KHz, MOSFET
=12V
O
LPC-HIGH
=15V, V
DD
x 0.83 at V
O
=15V, V
=12V
x 0.83 > 2V
O
=V
O
LPC-
=V
DD
DD
,
Min.
22.5
0.85
V
400
4.3
4.0
1.8
4.5
0.1
0.7
OFF
1.6
26
40
10
30
70
20
20
40
DD-
4
Typ.
27.5
25.0
1.00
150
120
250
180
500
350
4.8
4.5
1.1
2.1
8.3
0.9
2.2
0.2
0.8
70
12
70
50
90
80
7
1
2
www.fairchildsemi.com
Max.
28.5
28.5
28.0
1.15
200
100
120
170
100
130
600
120
5.3
5.0
1.3
2.4
0.5
2.8
0.3
0.9
14
8
Unit
mA
mA
A
A
s
s
s
s
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V