FAN5234QSC Fairchild Semiconductor, FAN5234QSC Datasheet - Page 5

• Manufacturer Part Number: FAN5234QSC
• Description: IC CTRLR PWM/PFM MOBILE 16QSOP
• Manufacturer: Fairchild Semiconductor

Specifications of FAN5234QSC

• Applications: Controller, Mobile PCs
• Voltage - Input: 2 ~ 24 V
• Number Of Outputs: 1
• Voltage - Output: 0.9 ~ 5.5 V
• Operating Temperature: -10°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Operating Temperature Range: - 10 C to + 150 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FAN5234QSC_NL; FAN5234QSC_NL

© 2004 Fairchild Semiconductor Corporation
FAN5234 • Rev. 2.0.0
Electrical Characteristics
Recommended operating conditions, unless otherwise noted.
Power Supplies
Oscillator
Reference and Soft-Start
PWM Converter
Output Drivers
Symbol
UVLO
I
V
UVLO
SOURCE
V
V
V
I
I
UVLOH
I
I
V
V
SINK
f
RAMP
VCC
I
UVLO
I
SEN
SNS
osc
G
SD
REF
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 Regulation
V
VOUT Pin Input Impedance
Under-Voltage Shutdown
Over-Current Threshold
Over-Voltage Threshold
HDRV Output Resistance
LDRV Output Resistance
CC
IN
IN
IN
SEN
Current, Sinking
Current, Sourcing
Current, Shutdown
Current
Bias Current
IN
Parameter
Gain
LDRV, HDRV Open;
V
Regulation Point
Shutdown (EN-0)
VIN Pin = Input Voltage
Source
VIN Pin = GND
Rising V
Falling
V
V
V
V
V
1V < V
At Startup
I
V
% of Set Point,
2µs Noise Filter
R
% of Set Point,
2µs Noise Filter
Sourcing
Sinking
Sourcing
Sinking
OUT
SEN
IN
IN
IN
IN
IN
IN
ILIM
> 5V
= 0V
= 16V
> 5V
≥ 3V
from 2 to 24V
from 0 to 3A,
= 68.5KΩ, Figure 6
Forced Above
Conditions
IN
CC
< 3V
5
0.891
Min.
4.30
4.10
255
510
115
113
0.1
10
50
40
70
-1
7
Continued on following page…
0.900
Typ.
4.55
4.27
1.25
850
300
600
125
250
144
0.5
1.5
8.0
3.2
8.0
1.5
20
15
80
55
75
5
2
5
0.909
Max.
1300
4.75
4.50
15.0
15.0
345
690
150
172
120
0.5
4.0
2.4
+1
15
30
20
65
80
1
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Units
mV/V
KHz
KΩ
µA
µA
µA
µA
µA
µA
nA
µA
%
%
%
Ω
Ω
V
V
V
V
V
V