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参数资料
| 型号： | TL598CDRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.25 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件页数： | 12/17页 |
| 文件大小： | 598K |
| 代理商： | TL598CDRG4 |
TL598
PULSEWIDTHMODULATION CONTROL CIRCUITS
SLVS053D FEBRUARY 1988 REVISED NOVEMBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = 15 V
(unless otherwise noted) (continued)
error amplifier section (see Note 4)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input offset voltage
FEEDBACK = 2.5 V
2
10
mV
Input offset current
FEEDBACK = 2.5 V
25
250
nA
Input bias current
FEEDBACK = 2.5 V
0.2
1
A
Common-mode input voltage range
VCC = 7 V to 40 V
0 to
VCC2
V
Open-loop voltage amplification
VO (FEEDBACK) = 3 V, VO (FEEDBACK) = 0.5 V to 3.5 V
70
95
dB
Unity-gain bandwidth
800
kHz
Common-mode rejection ratio
VCC = 40 V,
VIC = 6.5 V,
TA = 25°C
65
80
dB
Output sink current (FEEDBACK)
FEEDBACK = 0.5 V
0.3
0.7
mA
Output source current (FEEDBACK)
FEEDBACK = 3.5 V
2
mA
Phase margin at unity gain
FEEDBACK = 0.5 V to 3.5 V,
RL = 2 k
65
°
Supply-voltage rejection ratio
FEEDBACK = 2.5 V,
VCC = 33 V,
RL = 2 k
100
dB
All typical values, except for parameter changes with temperature, are at TA = 25°C.
NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used.
electrical characteristics over recommended operating free-air temperature range, VCC =15V
(unless otherwise noted)
undervoltage lockout section (see Note 4)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Threshold voltage
TA = 25°C
4
6
V
Threshold voltage
TA = full range
3.5
6.9
V
Hysteresis§
TA = 25°C
100
mV
Hysteresis§
TA = full range
50
mV
Full range is 0°C to 70°C.
§ Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage.
NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.
output section (see Note 4)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
High-level output voltage
VCC = 15 V,
IO = 200 mA
12
V
High-level output voltage
VCC = 15 V,
VC = 15 V
IO = 20 mA
13
V
Low-level output voltage
VCC = 15 V,
IO = 200 mA
2
V
Low-level output voltage
VCC = 15 V,
VC = 15 V
IO = 20 mA
0.4
V
Output-control input current
VI = Vref
3.5
mA
Output-control input current
VI = Vref
VI = 0.4 V
100
A
NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.
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| TL598MFKB | 制造商:TI 制造商全称:Texas Instruments 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
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