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参数资料
| 型号： | 5962-8869701VA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP18 |
| 封装： | CERAMIC, DIP-18 |
| 文件页数： | 10/16页 |
| 文件大小： | 425K |
| 代理商： | 5962-8869701VA |
ELECTRICAL CHARACTERISTICS
www.ti.com ........................................................................................................................................ SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008
Unless otherwise stated, these specifications apply for TA = –55°C to +125°C for the UC1903; –40°C to +85°C for the
UC2903; and 0°C to +70°C for the UC3903; +VIN = 15V; Sense Inputs (Pins 6–9 and Pin 15) = 2.5V; VPIN 4 = 1.0V, TA = TJ.
UC1903 / UC2903
UC3903
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
SUPPLY
Input Supply Current
No Faults
7
9
7
11
mA
UV, OV and Line Fault
10
15
10
18
mA
Supply Under Voltage Threshold
Fault Outputs Enabled
6.0
7.0
7.5
5.5
7.0
8.0
V
(VSUV)
Minimum Supply to Enable Power
3.0
4.0
3.0
4.0
V
OK Output
REFERENCE
Output Voltage (VREF)
TJ = 25°C
2.485
2.5
2.515
2.470
2.5
2.530
V
Over Temperature
2.465
2.535
2.465
2.535
V
Load Regulation
IL = 0 to 10mA
1
10
1
15
mV
Line Regulation
+VIN = 8 to 40V
1
4
1
8
mV
Short Circuit Current
TJ = 25°C
40
mA
FAULT THRESHOLDS(1)
OV Threshold Adj.
Offset from VREF as a function of VPIN
0.230
0.25
0.270
0.230
0.25
0.270
V/V
4 Input = Low to High, 0.5V
≤ VPIN 4 ≤ 2.5V
UV Threshold Adj.
Offset from VREF as a function of VPIN
–0.270
–0.25
–0.230
–0.270
–0.25
–0.270
V/V
4 Input = High to Low, 0.5V
≤ VPIN 4 ≤ 2.5V
OV & UV Threshold Hyst.
0.5V
≤ VPIN 4 ≤ 2.5V
10
20
30
10
20
30
mV/V
OV & UV Threshold Supply
+VIN = 8V to 40V
0.002
0.01
0.002
0.02
%/V
Sensitivity
Adjust Pin (Pin 4) Input Bias Current
0.5V
≤ VPIN 4 ≤ 2.5V
±1
±10
±1
±12
A/V
Line Sense Threshold
Input = High to Low
1.94
2.0
2.06
1.9
2.0
2.1
V
Line Sense Threshold Hyst.
125
175
225
100
175
250
mV
SENSE INPUTS
Input = 2.8V(2)
1
3
1
6
A
Sense 1-4 Input Bias Current
Input = 2.2(2)
–1
–3
–1
-6
A
Line Sense Input Bias Current
Input = 2.3V(2)
1
3
1
6
A
OV AND UV FAULT DELAY
Charging Current
60
A
Threshold Voltage
Delay Pin = Low to High
1.8
V
Threshold Hysteresis
TJ = 25°C
250
mV
Delay
Ratio of Threshold Voltage to Charging
20
30
50
20
30
50
ms/
F
Current
(1)
Reference to pin numbers in this specification pertain to 18 pin DIL N and J packages and 18 pin SOIC DW package.
(2)
These currents represent maximum input bias currents required as the sense inputs cross appropriate thresholds.
Copyright 1999–2008, Texas Instruments Incorporated
3
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