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SG3524NE4 Datasheet(PDF) 4 Page - Texas Instruments

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Part No. SG3524NE4
Description  REGULATING PULSE-WIDTH MODULATORS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SG3524NE4 Datasheet(HTML) 4 Page - Texas Instruments

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SG2524, SG3524
REGULATING PULSEWIDTH MODULATORS
SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
error amplifier section
PARAMETER
TEST
SG2524
SG3524
UNIT
PARAMETER
TEST
CONDITIONS†
MIN
TYP‡
MAX
MIN
TYP‡
MAX
UNIT
VIO
Input offset voltage
VIC = 2.5 V
0.5
5
2
10
mV
IIB
Input bias current
VIC = 2.5 V
2
10
2
10
µA
Open-loop voltage amplification
72
80
60
80
dB
VICR
Common-mode input voltage range
TA = 25°C
1.8 to
3.4
1.8 to
3.4
V
CMMR
Common-mode rejection ratio
70
70
dB
B1
Unity-gain bandwidth
3
3
MHz
Output swing
TA = 25°C
0.5
3.8
0.5
3.8
V
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values, except for temperature coefficients, are at TA = 25°C
output section
PARAMETER
TEST CONDITIONS†
MIN
TYP‡
MAX
UNIT
V(BR)CE
Collector-emitter breakdown voltage
40
V
Collector off-state current
VCE = 40 V
0.01
50
µA
Vsat
Collector-emitter saturation voltage
IC = 50 mA
1
2
V
VO
Emitter output voltage
VC = 20 V,
IE = –250 µA
17
18
V
tr
Turn-off voltage rise time
RC = 2 kΩ
0.2
µs
tf
Turn-on voltage fall time
RC = 2 kΩ
0.1
µs
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values, except for temperature coefficients, are at TA = 25°C.
comparator section
PARAMETER
TEST CONDITIONS†
MIN
TYP‡
MAX
UNIT
Maximum duty cycle, each output
45%
V
Inp t threshold oltage at COMP
Zero duty cycle
1
V
VIT
Input threshold voltage at COMP
Maximum duty cycle
3.5
V
IIB
Input bias current
–1
µA
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡ All typical values, except for temperature coefficients, are at TA = 25°C.
current limiting section
PARAMETER
TEST CONDITIONS†
MIN
TYP‡
MAX
UNIT
VI
Input voltage range (either input)
–1 to1
V
V(SENSE)
Sense voltage at TA = 25°C
V(IN ) V(IN ) ≥ 50 mV V(COMP) 2V
175
200
225
mV
Temperature coefficient of sense voltage
V(IN+) – V(IN–) ≥ 50 mV, V(COMP) = 2 V
0.2
mV/
°C
‡ All typical values, except for temperature coefficients, are at TA = 25°C.
total device
PARAMETER
TEST CONDITIONS
MIN
TYP‡
MAX
UNIT
Ist
Standby current
VCC = 40 V, IN–, CURR LIM+, CT, GND, COMP, EMIT 1, EMIT 2 grounded,
IN+ at 2 V, All other inputs and outputs open
8
10
mA
‡ All typical values, except for temperature coefficients, are at TA = 25°C.


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