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參數(shù)資料
| 型號： | FAN5037M_NL |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 101K |
| 代理商： | FAN5037M_NL |
FAN5037
PRODUCT SPECIFICATION
2
REV. 1.0.3 9/26/01
Pin Assignments
Absolute Maximum Ratings
Note:
1. Functional operation under any of these conditions is not implied. Performance is guaranteed only if Operating Conditions
are not exceeded.
Operating Conditions
Pin Descriptions
Pin
Name
Pin
Number
Pin Function Description
CEXT
1
External capacitor. A 180pF capacitor is connected to this pin as part of the constant
on-time pulse width circuit. Careful layout of this pin is critical to system performance.
See Applications Information for details.
VCCA
2
Analog Vcc. Power supply for regulator control circuitry and voltage reference. Connect to
system 5V supply and decouple to ground with 0.1F ceramic capacitor.
IFBH
3
High side current feedback. Pins 3 and 4 are used as the inputs for the current feedback
control loop and as the short circuit current sense points. Careful layout of the traces from
these pins to the current sense resistor is critical for optimal performance of the short circuit
protection scheme. See Applications Information for details.
IFBL
4
Low side current feedback. See Applications Information for details.
VFB
5
Voltage feedback. Using two external resistors, this pin sets the output voltage level for the
switching regulator.
GNDP
6
Power Ground. Connect to a low impedance ground. See Application Information for
details.
DRV
7
MOSFET driver output. Connect this pin to the gate of the N-channel MOSFET Q1 as
shown in Figure 12. The trace from this pin to the MOSFET gate should be kept as short as
possible (less than 0.5"). See Applications Information for details.
VCCP
8
Power Vcc. Power supply for DRV output driver. Connect to system 12V supply with R-C
filter shown in Figure 12. See Applications Information for details.
Supply Voltages, VCCA
7V
Supply Voltages, VCCP
13V
Junction Temperature, TJ
+150°C
Storage Temperature, TS
-65 to +150°C
Lead Soldering Temperature, 10 seconds
300°C
Thermal Resistance Junction-to-Ambient,
ΘJA
163°C/W
Parameter
Conditions
Min.
Typ.
Max.
Units
Switching Regulator Supply, VCCA
4.75
5
5.25
V
Ambient Operating Temperature, TA
070
°C
Gate Drive Supply, VCCP
9.5
12
12.6
V
CEXT
VCCA
IFBH
VCCP
DRV
GNDP
1
2
3
8
7
6
IFBL
VFB
FAN5037
45
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