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TL598 数据表(PDF) 5 Page - Texas Instruments

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部件名 TL598
功能描述  PULSE-WIDTH-MODULATION CONTROL CIRCUITS
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TL598 数据表(HTML) 5 Page - Texas Instruments

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TL598
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS053C – FEBRUARY 1988 – REVISED JULY 1999
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC =15V
(unless otherwise noted)
undervoltage lockout section (see Note 4)
PARAMETER
TEST CONDITIONS†
TL598C
TL598Q
UNIT
PARAMETER
TEST CONDITIONS†
MIN
MAX
MIN
MAX
UNIT
Threshold voltage
TA = 25°C
4
6
4
6
V
Threshold voltage
∆TA = full range
3.5
6.9
3
6.9
V
Hysteresis‡
TA = 25°C
100
100
mV
Hysteresis‡
TA = full range
50
30
mV
† Full range is 0
°C to 70°C for the TL598C, and –40°C to 125°C for the TL598Q.
‡ 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
TL598C, TL598Q
UNIT
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
High level output voltage
VCC = 15 V,
IO = –200 mA
12
V
High-level output voltage
CC
,
VC = 15 V
IO = –20 mA
13
V
Low level output voltage
VCC = 15 V,
IO = 200 mA
2
V
Low-level output voltage
CC
,
VC = 15 V
IO = 20 mA
0.4
V
Output control input current
VI = Vref
3.5
mA
Output-control input current
Iref
VI = 0.4 V
100
µA
NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.
dead-time control section (see Figure 1) (see Note 4)
PARAMETER
TEST CONDITIONS
TL598C
TL598Q
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP§
MAX
MIN
TYP§
MAX
UNIT
Input bias current (DTC)
VI = 0 to 5.25 V
–2
–10
–2
–25
µA
Maximum duty cycle, each output
DTC = 0 V
0.45
0.45
Input threshold voltage (DTC)
Zero duty cycle
3
3.3
3
3.2
V
Input threshold voltage (DTC)
Maximum duty cycle
0
0
V
§ All typical values except for parameter changes with temperature are at TA = 25°C.
NOTE 4. Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.
pwm comparator section (see Note 4)
PARAMETER
TEST CONDITIONS
TL598C, TL598Q
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP§
MAX
UNIT
Input threshold voltage (FEEDBACK)
DTC = 0 V
3.75
4.5
V
Input sink current (FEEDBACK)
V(FEEDBACK) = 0.5 V
0.3
0.7
mA
§ All typical values except for parameter changes with temperature are at TA = 25°C.
NOTE Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.
total device (see Figure 1) (see Note 4)
PARAMETER
TEST CONDITIONS
TL598C, TL598Q
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP§
MAX
UNIT
Standby supply current
RT = Vref,
VCC = 15 V
15
21
mA
Standby supply current
All other inputs and outputs open
VCC = 40 V
20
26
mA
Average supply current
DTC = 2 V
15
mA
§ All typical values except for parameter changes with temperature are at TA = 25°C.
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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