поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

SS6652CSTB датащи(PDF) 4 Page - Silicon Standard Corp.

номер детали SS6652CSTB
подробное описание детали  Micro-Power Inverting DC/DC Controller
PDF  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  SSC [Silicon Standard Corp.]
домашняя страница  http://www.siliconstandard.com
Logo SSC - Silicon Standard Corp.

SS6652CSTB датащи(HTML) 4 Page - Silicon Standard Corp.

  SS6652CSTB Datasheet HTML 1Page - Silicon Standard Corp. SS6652CSTB Datasheet HTML 2Page - Silicon Standard Corp. SS6652CSTB Datasheet HTML 3Page - Silicon Standard Corp. SS6652CSTB Datasheet HTML 4Page - Silicon Standard Corp. SS6652CSTB Datasheet HTML 5Page - Silicon Standard Corp. SS6652CSTB Datasheet HTML 6Page - Silicon Standard Corp.  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
www.SiliconStandard.com
4 of 6
SS6652
n PIN DESCRIPTIONS
PIN 1: VIN
- Input supply voltage (2.4V~7V)
PIN 2: VREF - Reference output (1.22V). Bypass
with a 0.047
µF capacitor to GND.
Sourcing capability is guaranteed
to be greater than 250
µA.
PIN 3: SHDN- Logic input to shutdown the chip.
>1.5V = normal operation,
GND = shutdown
In shutdown mode DLOW and
DHI pins are at high level.
PIN 4: FB
- Feedback signal input to sense
ground. Connecting a resistor R1
to VOUT and a resistor R2 to VREF
pin yields the output voltage:
VOUT = - (R1/R2 ) x VREF
PIN 5: GND - Power ground.
PIN 6: DLOW - Driver sinking output. Connected
to DHI when using an external P-
channel MOSFET. When using an
external PNP bipolar transistor,
connect a resistor RB from this
pin to DHI. RB value depends on
VIN, inductor and PNP bipolar
transistor. By adjusting the RB
value, efficiency can be optimized.
PIN 7: DHI
- Driver sourcing output. Connect to
gate of the external P-channel
MOSFET or base of the PNP bi-
polar transistor.
PIN 8: CL
- Current-limit
input.
This
pin
clamps the switch peak current to
prevent over-current damage to
the external switch.
n APPLICATION INFORMATION
2
4
6
8
0
0.2
0.4
0.6
0.8
100
µH
120
µH
150
µH
180
µH
220
µH
VIN (V)
Max. Output Power vs VIN
Inductor Value
Typical Application Circuit
The typical application circuit generates an adjustable
negative voltage for contrast bias of LCD displays. Ef-
ficiency and output power can be optimized by using
appropriate inductor and switch. The following formu-
lae provide a guideline for determining the optimal
component values:
L
= (11.1 0.15
V )
V
I
V
IN
IN
OUT
OUT
−
×
×
×
PNP :
V
V
V
CEO
IN
OUT
>
+
I
200
I
V
C, MAX
OUT
IN
≥
×
V
0. 4 V at I
= 200
I
V
CE
C
OUT
IN
<
×
and
10
β =
RB
≅ 3 x L x (V
IN - 0.8)
where, VIN(V), VOUT(V), IOUT(A), L(µH), RB(Ω)
Rev.2.01 6/26/2003



Html Pages

1 2 3 4 5 6


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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