FAN5232 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN5232 Datasheet PDF : 9 Pages
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PRODUCT SPECIFICATION
FAN5232
Recommended Operating Conditions
Parameter
VBATT Voltage
Ambient Temperature
Conditions
Min.
5.6
-20
Typ.
Max.
24
85
Units
V
°C
Electrical Specifications
(VBATT = 16V, TA = -20 to 85°C, circuit of Figure 1, unless otherwise specified.)
Parameter
Conditions
Supply
VCC Input Quiescent Current
H/LSD Open
Stand-by
Shut-down
VCC Input UVLO Threshold
Rising
Falling
Switcher
Output Voltage Precision, VFB 0.1 ≤I ≤ 5.5A, 7.2 ≤ VBATT ≤ 24V
I ≤ 100mA, 5.6 ≤ VBATT ≤ 24V
Oscillator Frequency, fOSC
Gate Drive On-Resistance for
all Sources and HSD Sinks
Gate Drive On Resistance for
LSD Sink
HSD On Output, VCPUMP-VGS
HSD Off Output, VGS
LSD On Output, V5V-Always-VGS
LSD Off Output, VGS
Ramp Amplitude, pk-pk
I = 10µA
I = -10µA
I = 10µA
I = -10µA
Ramp Offset
Ramp Gain from VBATT
Error Amplifier GBW
Current Limit Threshold
R3 = 1KΩ
Over Voltage Threshold
2µs delay
Under Voltage Threshold
2µs delay
Max Duty Cycle
Min HSD On-time
VFBSW, ISNS Input Leakage
Current
SDN/SS Full On Voltage Min.
SDN/SS Full Off Voltage Max.
5V and 3.3V Always
Linear Regulator Accuracy
5.6V ≤VBATT≤ 22V,
0 ≤ ILOAD ≤ 50mA
Rated Output Current
Overcurrent Limit
I3.3 + I5
2µs delay
Undervoltage Threshold
2µs delay
Min.
4.3
4.0
4.900
4.900
255
135
110
70
80
4.2
-3.3
100
70
Typ.
4.5
4.3
5
5
300
6
1.5
2
0.5
125
3
150
115
75
200
100
75
REV. 1.1.1 10/7/02
Max.
1.4
60
10
5.1
4.7
5.100
5.100
345
12
8
100
100
100
100
165
120
80
200
800
2
50
180
80
Units
mA
µA
µA
V
V
KHz
Ω
Ω
mV
mV
mV
mV
V
V
mV/V
MHz
mV
%VO
%VO
%
nsec
nA
V
mV
%
mA
mA
%
3
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