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參數(shù)資料
| 型號(hào)： | SC1402 |
| 廠商： | Semtech Corporation |
| 英文描述： | Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
| 中文描述： | 多輸出，低噪聲電源控制器，用于筆記本電腦 |
| 文件頁(yè)數(shù)： | 4/18頁(yè) |
| 文件大?。?/td> | 270K |
| 代理商： | SC1402 |
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SC1402
2000 SEMTECH CORP.
652 MITCHELL ROAD
NEWBURY PARK CA 91320
Multi-Output, Low-Noise Power Supply
Controller for Notebook Computers
December 15, 2000
4
Note 1: This device is ESD sensitive. Use of standard ESD handling precautions is required.
Note 2: Guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(Unless otherwise noted: (V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA, PSAVE = 0V, T
A
= -40 to +85°C
Typical values are at T
A
= +25°C).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FAULT DETECTION
Overvoltage Trip Threshold
With respect to unloaded output voltage
3.5
7
10
%
Overvoltage-Fault
Propagation Delay
CSL_ driven 2% above overvoltage trip threshold
1.5
μs
Output Undervoltage
Threshold
With respect to unloaded output voltage
60
70
80
%
Output Undervoltage
Lockout Time
From each SMPS enabled, with respect to f
OSC
5000
6144
7000
clks
Thermal Shutdown
Threshold
Typical hysteresis = +10°C
150
°C
RESET
RESET Trip Threshold
With respect to unloaded output voltage, falling
edge; typical hysteresis = 1%
-10
-7
-4
%
RESET Propagation Delay
Falling edge, CSL_ driven 2% below RESET trip
threshold
1.5
μs
RESET Delay Time
With respect to fOSC
27,000
32,000 37,000
clks
INPUTS AND OUTPUTS
Logic Input Low Voltage
RUN/ON3, PSAVE, TIME/ON5 (SEQ = REF),
SHDN, SYNC
0.6
V
Logic Input High Voltage
RUN/ON3, PSAVE, TIME/ON5 (SEQ = REF),
SHDN, SYNC
2.4
V
Input Leakage Current
RUN/ON3, PSAVE, TIME/ON5 (SEQ = REF),
SHDN, SYNC, SEQ = 0V or 3.3V
+1
μA
Logic Output Low Voltage
RESET, ISINK = 4mA
0.4
V
Logic Output High Current
RESET = 3.5V
1
mA
TIME/ON5 Input Trip Level
SEQ = 0 or VL
2.4
2.6
V
TIME/ON5 Source Current
TIME/ON5 = 0V, SEQ = 0 or VL
2
3
4
μA
TIME/ON5 On-Resistance
TIME/ON5, RUN/ON3 = 0V, SEQ = 0 or VL
100
Gate Driver Sink/Source
Current
DL3, DH3, DL5, DH5, forced to 2V
1
A
Gate Driver On-Resistance
High or low
1.5
7
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| SC1402ISS | 制造商:SEMTECH 制造商全稱(chēng):Semtech Corporation 功能描述:Multi-Output, Low-Noise Power Supply Controller for Notebook Computers |
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| SC1403ITSTRT | 制造商:Semtech Corporation 功能描述:DC DC Cntrlr Triple-OUT PWM DC to DC Controller/Step Down 6V to 30V Input 28-Pin TSSOP T/R |
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