Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

SMP402SC Folha de dados(PDF) 4 Page - Power Integrations, Inc.

Nome de Peças SMP402SC
Descrição Electrónicos  20-72 VDC Input Non-isolated DC Output
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  POWERINT [Power Integrations, Inc.]
Página de início  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

SMP402SC Folha de dados(HTML) 4 Page - Power Integrations, Inc.

  SMP402SC Datasheet HTML 1Page - Power Integrations, Inc. SMP402SC Datasheet HTML 2Page - Power Integrations, Inc. SMP402SC Datasheet HTML 3Page - Power Integrations, Inc. SMP402SC Datasheet HTML 4Page - Power Integrations, Inc. SMP402SC Datasheet HTML 5Page - Power Integrations, Inc. SMP402SC Datasheet HTML 6Page - Power Integrations, Inc. SMP402SC Datasheet HTML 7Page - Power Integrations, Inc. SMP402SC Datasheet HTML 8Page - Power Integrations, Inc. SMP402SC Datasheet HTML 9Page - Power Integrations, Inc. Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 16 page
background image
SMP402
D
1/96
4
Oscillator
The oscillator frequency can be adjusted
by changing the external C
EXT capacitor.
This capacitor is charged and discharged
by switched constant current sources.
The voltage switch points are determined
by hysteresis built into a comparator.
The period of the waveform is
determined by values of the current
sources which set the rising and falling
slopes of the sawtooth waveform.
Maximum duty cycle is equal to the ratio
of the charge time to the period. Clock
and blanking signals are synthesized
from the comparator output for use by
the modulator.
Error Amplifier
The error amplifier consists of a high
performance operational amplifier with
the non-inverting input connected to the
internal bandgap reference voltage. The
output of the error amplifier directly
controls the duty cycle of the power
switch.
Pulse Width Modulator
The pulse width modulator implements
a voltage-mode control loop, and
generates the digital driver signal which
controls the power switch. The duty
cycle of the driver signal will change as
a function of input voltage and load.
Increasing the duty cycle causes the
power supply output voltage to go up.
Conversely, decreasing the duty cycle
causes the output voltage to go down.
The pulse width modulator compares
the control voltage (error amplifier
output) with the sawtooth voltage
generated by the oscillator to produce
the required duty cycle.
Thermal Shutdown
Temperature protection is provided by a
precision analog circuit that turns the
power switch off when the junction gets
too hot (typically 140
°C). The device
will automatically reset and turn back on
again when the junction has cooled past
the hysteresis temperature level.
Functional Description (cont.)
SENSE+ and SENSE- Inputs
SENSE+ and SENSE-are both current
mirror inputs consisting of N-channel
MOSFETs connected as diodes. The
threshold voltage of each transistor is
typically 1.7 V. An input current which
exceeds the indicated threshold current
will turn on the mirror transistor for an
active-low signal.
POLARITY and LEVEL Outputs
The LEVEL output is high when the
input current to either SENSE+ or
SENSE- exceeds the LEVEL current
threshold and the output voltage is in
regulation. During normal operation,
the POLARITY output is high when the
input current to SENSE+ is above the
POLARITY current threshold and the
output voltage is in regulation. During
emergency operation (when
the DC
input voltage is inverted), the
POLARITY output is low when the input
current to SENSE- exceeds the
INPUT
5 V OUT
LEVEL
POLARITY
48 V
5 V
0 V
5 V
0 V
5 V
0 V
0
-48 V
PI-960A-032293
32 V
30 V
10 V
12 V
-10 V
-30 V
-32 V
Figure 4. Turn-on and Turn-off Waveforms of the SMP402.


Nº de peça semelhante - SMP402SC

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Seme LAB
SMP400G-BA SEME-LAB-SMP400G-BA Datasheet
56Kb / 2P
   P.I.N. PHOTODIODE
SMP400G-BB SEME-LAB-SMP400G-BB Datasheet
56Kb / 2P
   P.I.N. PHOTODIODE
SMP400G-BC SEME-LAB-SMP400G-BC Datasheet
36Kb / 2P
   P.I.N. PHOTODIODE
SMP400G-BD SEME-LAB-SMP400G-BD Datasheet
55Kb / 2P
   P.I.N. PHOTODIODE
SMP400G-BE SEME-LAB-SMP400G-BE Datasheet
32Kb / 2P
   P.I.N. PHOTODIODE
More results

Descrição semelhante - SMP402SC

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Bel Fuse Inc.
XRAH-07C1A0 BEL-XRAH-07C1A0 Datasheet
149Kb / 8P
   NON-ISOLATED DC/DC CONVERTERS 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/7 A Output
XRAH-02C50X BEL-XRAH-02C50X Datasheet
130Kb / 6P
   NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 3.6 Vdc Input 5.0 Vdc/1.5 A Output
SLIN-20E1AX BEL-SLIN-20E1AX Datasheet
463Kb / 26P
   NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 14 Vdc Input, 0.69 Vdc - 5.5 Vdc /20 A Outputs
XRAH-03F1A0 BEL-XRAH-03F1A0 Datasheet
240Kb / 9P
   NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 0.9 Vdc - 3.3 Vdc/3 A Output
logo
Toppower Electronic Tec...
TP78LU3.3-0.5 TOPPOWER-TP78LU3.3-0.5 Datasheet
251Kb / 3P
   Wide Input Non-Isolated,Regulated Single Output ,non-isolated DC/DC converters
TP78LUXX-0.5 TOPPOWER-TP78LUXX-0.5 Datasheet
271Kb / 3P
   Wide Input Non-Isolated,Regulated Single Output ,non-isolated DC/DC converters
logo
WAGO Kontakttechnik Gmb...
787-1014-072-000 WAGO-787-1014-072-000 Datasheet
283Kb / 7P
   DC/DC Converter; Compact; 72 VDC input voltage; 24 VDC output voltage;
787-1015-072-000 WAGO-787-1015-072-000 Datasheet
294Kb / 6P
   DC/DC Converter; Compact; 72 VDC input voltage; 12 VDC output voltage
logo
Bel Fuse Inc.
XRAH-01FXX0 BEL-XRAH-01FXX0 Datasheet
207Kb / 7P
   NON-ISOLATED DC/DC CONVERTERS 3.0 Vdc - 5.5 Vdc Input 12 Vdc/0.8 A & 15 Vdc/0.6 A Output
logo
Toppower Electronic Tec...
TP785.5-10 TOPPOWER-TP785.5-10 Datasheet
214Kb / 2P
   Wide Input&output Non-Isolated & Regulated DC/DC converter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com