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TL594IN Folha de dados(PDF) 6 Page - Texas Instruments

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Nome de Peças TL594IN
Descrição Electrónicos  PULSE-WIDTH-MODULATION CONTROL CIRCUIT
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

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TL594
PULSEWIDTHMODULATION CONTROL CIRCUIT
SLVS052F − APRIL 1988 − REVISED NOVEMBER 2003
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = 15 V,
(unless otherwise noted) (continued)
dead-time control section (see Figure 2)
PARAMETER
TEST CONDITIONS
TL594C, TL594I
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Input bias current
VI = 0 to 5.25 V
−2
−10
µA
Maximum duty cycle, each output
DTC = 0 V
0.45
Input threshold voltage
Zero duty cycle
3
3.3
V
Input threshold voltage
Maximum duty cycle
0
V
† All typical values, except for parameter changes with temperature, are at TA = 25°C.
output section
PARAMETER
TEST CONDITIONS
TL594C, TL594I
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VC = 40 V, VE = 0 V,
VCC = 40 V
2
100
Collector off-state current
DTC and OUTPUT CTRL = 0 V,
VC = 15 V,
VE = 0 V,
VCC = 1 to 3 V
4
200
µA
Emitter off-state current
VCC = VC = 40 V,
VE = 0
−100
µA
Collector-emitter saturation voltage
Common emitter
VE = 0,
IC = 200 mA
1.1
1.3
V
Collector-emitter saturation voltage
Emitter follower
VC = 15 V,
IE = −200 mA
1.5
2.5
V
Output control input current
VI = Vref
3.5
mA
† All typical values, except for parameter changes with temperature, are at TA = 25°C.
pwm comparator section (see Figure 2)
PARAMETER
TEST CONDITIONS
TL594C, TL594I
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Input threshold voltage, FEEDBACK
Zero duty cycle
4
4.5
V
Input sink current, FEEDBACK
FEEDBACK = 0.5 V
0.3
0.7
mA
† All typical values, except for parameter changes with temperature, are at TA = 25°C.
undervoltage lockout section (see Figure 2)
PARAMETER
TEST CONDITIONS‡
TL594C, TL594I
UNIT
PARAMETER
TEST CONDITIONS‡
MIN
MAX
UNIT
Threshold voltage
TA = 25°C
6
V
Threshold voltage
∆TA = MIN to MAX
3.5
6.9
V
Hysteresis§
100
mV
‡ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
§ Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage.
PARAMETER
TEST CONDITIONS
TL594C, TL594I
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
Standby supply current
RT at Vref,
VCC = 15 V
9
15
mA
Standby supply current
RT at Vref,
All other inputs and outputs open
VCC = 40 V
11
18
mA
Average supply current
DTC = 2 V,
See Figure 2
12.4
mA
† All typical values, except for parameter changes with temperature, are at TA = 25°C.


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