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参数资料
| 型号： | 5962-88697012A |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 11/16页 |
| 文件大小： | 425K |
| 代理商： | 5962-88697012A |
SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008 ........................................................................................................................................ www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
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
FAULT OUTPUTS (OV, UV, AND POWER 0K)
Maximum Current
VOUT = 2V
30
70
30
70
mA
Saturation Voltage
IOUT = 12mA
0.25
0.40
0.25
0.40
V
Leakage Current
VOUT = 40 V
3
25
3
25
A
SENSE 4 INVERTER(3)
Input Offset Voltage
2
8
2
10
mV
Input Bias Current
0.1
2
0.1
4
A
Open Loop Gain
65
80
65
80
dB
PSRR
+VIN = 8 to 40 V
65
100
65
100
dB
Unity Gain Frequency
1
MHz
Slew Rate
0.4
V/
s
Short Circuit Current
TJ = 2°C
40
mA
G.P. OP-AMP(3)
Input Offset Voltage
1
5
1
8
mV
Input Bias Voltage
0.1
2
0.1
4
A
Input Offset Current
0.01
.5
0.01
1.0
A
Open Loop Gain
65
120
65
120
dB
CMRR
VCM = 0 to +VIN = 2.0V
65
100
65
100
dB
PSRR
+VIN = 8 to 40V
65
100
65
100
dB
Unity Gain Frequency
1
MHz
Slew Rate
0.4
V/
s
Short Circuit Current
TJ = 25°C
40
mA
(3)
When either the G.P. OP-Amp, or the Sense 4 Inverter, are configured for sensing a negative supply voltage, the divider resistance at
the inverting input should be chosen such that the nominal divider current is
≤1.4mA. With the divider current at or below this level
possible latching of the circuit is avoided. Proper operation for currents at or below 1.4mA is 100% tested in production.
4
Copyright 1999–2008, Texas Instruments Incorporated
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