FSDH321_04 FAIRCHILD [Fairchild Semiconductor], FSDH321_04 Datasheet - Page 6

• Manufacturer Part Number: FSDH321_04
• Description: Green Mode Fairchild Power Switch
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

FSDH321, FSDL321
Electrical Characteristics (Control Part)
(Ta=25 C unless otherwise specified)
Note:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS (wafer test) process
3. di/dt = 250mA/uS
6
Parameter
UVLO SECTION
Start Threshold Voltage
Stop Threshold Voltage
OSCILLATOR SECTION
Initial Accuracy
Frequency Modulation
Initial Accuracy
Frequency Modulation
Frequency Change With Temperature
Maximum Duty Cycle
FEEDBACK SECTION
Feedback Source Current
Shutdown Feedback Voltage
Shutdown Delay Current
BURST MODE SECTION
Burst Mode Voltage
CURRENT LIMIT(SELF-PROTECTION)SECTION
Peak Current Limit
Current Limit Delay
SOFT START SECTION
Soft Start Time
PROTECTION SECTION
Thermal Shutdown Temperature
Over Voltage Protection
TOTAL STANDBY CURRENT SECTION
Startup Charging Current
Operating Supply Current
(Control Part Only)
(3)
(1)
(1)
(2)
Hysteresis
Symbol
V
I
V
V
V
F
F
F
F
Dmax
DELAY
V
T
START
V
BURH
T
STOP
T
BURL
I
I
I
MOD
MOD
F/ T
I
OSC
OSC
CLD
OVP
LIM
CH
OP
FB
SD
SD
SS
V
V
FSDH321
FSDL321
-25 C
FSDH321
FSDL321
Ta=25 C, Vfb = 0V
Ta=25 C, Vfb = 4V
Tj = 25 C
Tj = 25 C
Tj = 25 C
Vfb = 4V
V
V
FB
FB
CC
CC
(Continued)
=GND
=GND
=0V
Condition
14V, Vfb = 0V
Ta
-
+85 C
Min.
0.70
0.25
0.60
125
5.5
3.5
0.4
0.7
11
90
45
62
71
10
18
2.5
1.0
7
1
-
-
-
Typ.
0.90
0.35
0.70
0.85
100
150
600
145
6.0
5.0
0.5
12
50
67
77
15
19
1.5
8
3
3
5
Max.
0.45
0.80
110
1.1
6.5
6.5
0.6
1.0
13
55
72
83
20
20
3.5
2.0
10
9
5
-
-
-
Unit
kHz
kHz
mA
mV
mA
mA
ms
ns
%
%
%
V
V
V
V
V
A
V
C
A