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| 型號： | 5962-8670402VPA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大?。?/td> | 295K |
| 代理商： | 5962-8670402VPA |
_
+
2.5 V
2
1
VFB
COMP
ZF
ZI
0.5 mA
www.ti.com
SLUS981 – MARCH 2010
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise stated, these specifications apply for –55°C
≤ TA ≤ 125°C; VCC = 15 V
(1); R
T = 10 kW; CT = 3.3 nF,TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Rise Time
TJ = 25°C, CL = 1 nF
(3)
50
150
ns
Fall Time
TJ = 25°C, CL = 1 nF
(3)
50
150
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold
7.8
8.4
9.0
V
Min. Operating Voltage
7.0
7.6
8.2
After Turn On
PWM SECTION
For SMD device option 10
94
97
100
%
Maximum Duty Cycle
For SMD device option 02
93
97
100
%
Minimum Duty Cycle
0
%
TOTAL STANDBY CURRENT
Start-Up Current
0.5
1
mA
Operating Supply
VPIN 2 = VPIN 3 = 0 V
11
17
Current
VCC Zener Voltager
ICC = 25 mA
30
34
V
ERROR AMP CONFIGURATION
Error amp can source or sink up to 0.5 mA.
UNDER-VOLTAGE LOCKOUT
During under-voltage lock-out, the output drive is biased to sink minor amounts of current. Pin 6 should be
shunted to ground with a bleeder resistor to prevent activating the power switch with extraneous leakage
currents.
Copyright 2010, Texas Instruments Incorporated
5
Product Folder Link(s): UC1843-SP
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