FAN5236 Fairchild Semiconductor, FAN5236 Datasheet - Page 6

• Manufacturer Part Number: FAN5236
• Manufacturer: Fairchild Semiconductor

© 2002 Fairchild Semiconductor Corporation
FAN5236 • Rev. 1.3.2
Electrical Characteristics
Recommended operating conditions, unless otherwise noted.
Power Supplies
Oscillator
Reference and Soft Start
PWM Converters
Output Drivers
Symbol
UVLO
I
V
UVLO
SOURCE
V
V
V
I
I
UVLOH
V
V
I
I
f
SINK
I
RAMP
VCC
UVLO
I
SEN
SNS
osc
G
REF
SD
SS
PP
SS
TSD
V
V
V
V
UVLO Threshold
UVLO Hysteresis
Frequency
Ramp Amplitude
Ramp Offset
Ramp / V
Internal Reference Voltage
Soft-Start Current
Soft-Start Complete
Threshold
Load Regulators
V
VOUT Pin Input Impedance
Under-Voltage Shutdown
Over-Voltage Threshold
Over-Current Threshold
HDRV Output Resistance
LDRV Output Resistance
CC
IN
IN
IN
SEN
Current, Sinking
Current, Sourcing
Current, Shutdown
Current
Bias Current
Parameter
IN
Gain
LDRV, HDRV Open, V
Regulation Point
Shutdown (EN-0)
V
V
Rising V
Falling
V
V
V
1V < V
At Startup
I
% of Set Point, 2µs Noise Filter
% of Set Point, 2µs Noise Filter
R
Sourcing
Sinking
Sourcing
Sinking
OUTX
IN
IN
IN
IN
IN
ILIM
= 24V
= 0V
= 16V
= 5V
≤ 3V
= 68.5KΩ, Figure 12
from 0 to 5A, V
IN
CC
< 3V
Conditions
6
IN
SEN
from 5 to 24V
Forced Above
0.891
Min.
4.30
4.10
255
115
112
Continued on following page…
10
50
45
70
-2
0.900
Typ.
4.55
4.25
1.25
12.0
12.0
300
300
125
250
120
140
2.2
-15
0.5
1.5
2.4
1.2
55
80
75
2
5
Max.
0.909
4.45
4.75
15.0
15.0
345
120
125
168
3.0
-30
4.0
2.0
30
30
+2
65
80
1
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Units
mV/V
mV/V
KHz
mV
KΩ
µA
µA
µA
µA
µA
µA
nA
µA
%
%
%
Ω
Ω
V
V
V
V
V
V
V