Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

CS3845GDR14 Datasheet(PDF) 4 Page - ON Semiconductor

No. de Pieza. CS3845GDR14
Descripción  Current Mode PWM Control Circuit
Descarga  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  ONSEMI [ON Semiconductor]
Página de inicio  http://www.onsemi.com
Logo 

CS3845GDR14 Datasheet(HTML) 4 Page - ON Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 4 / 12 page
background image
CS2844, CS3844, CS2845, CS3845
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (continued) (–25
° ≤ TA ≤ 85° for CS2844/2845, 0° ≤ TA ≤ 70° for CS3844/CS3845.
VCC = 15 V*; RT = 10 kΩ, CT = 3.3 nF for sawtooth mode; unless otherwise stated.)
CS2842A/CS2843A
CS3842A/CS3843A
Characteristic
Test Conditions
Min
Typ
Max
Min
Typ
Max
Unit
Error Amp Section
Input Voltage
VCOMP = 2.5 V
2.45
2.50
2.55
2.42
2.50
2.58
V
Input Bias Current
VFB = 0
–0.3
–1.0
–0.3
–2.0
µA
AVOL
2.0
≤ VOUT ≤ 4.0 V
65
90
65
90
dB
Unity Gain Bandwidth
Note 4.
0.7
1.0
0.7
1.0
MHz
PSRR
12
≤ VCC ≤ 25 V
60
70
60
70
dB
Output Sink Current
VFB = 2.7 V, VCOMP = 1.1 V
2.0
6.0
2.0
6.0
mA
Output Source Current
VFB = 2.3 V, VCOMP = 5.0 V
–0.5
–0.8
–0.5
–0.8
mA
VOUT High
VFB = 2.3 V, RL = 15 kΩ to GND
5.0
6.0
5.0
6.0
V
VOUT Low
VFB = 2.7 V, RL = 15 kΩ to VREF
0.7
1.1
0.7
1.1
V
Current Sense Section
Gain
Notes 5 & 6.
2.85
3.00
3.15
2.85
3.00
3.15
V/V
Maximum Input Signal
VCOMP = 5.0 V. Note 5.
0.9
1.0
1.1
0.9
1.0
1.1
V
PSRR
12
≤ VCC ≤ 25 V. Note 5.
70
70
dB
Input Bias Current
VSENSE = 0
–2.0
–10
–2.0
–10
µA
Delay to Output
TJ = 25°C. Note 4.
150
300
150
300
ns
Output Section
Output Low Level
ISINK = 20 mA
ISINK = 200 mA
0.1
1.5
0.4
2.2
0.1
1.5
0.4
2.2
V
V
Output High Level
ISOURCE = 20 mA
ISOURCE = 200 mA
13
12
13.5
13.5
13
12
13.5
13.5
V
V
Rise Time
TJ = 25°C, CL = 1.0 nF. Note 4.
50
150
50
150
ns
Fall Time
TJ = 25°C, CL = 1.0 nF. Note 4.
50
150
50
150
ns
Total Standby Current
Startup Current
0.5
1.0
0.5
1.0
mA
Operating Supply Current
VFB = VSENSE = 0 V,
RT = 10 kΩ, CT = 3.3 nF
11
17
11
17
mA
VCC Zener Voltage
ICC = 25 mA
34
34
V
PWM Section
Maximum Duty Cycle
46
48
50
46
48
50
%
Minimum Duty Cycle
0
0
%
4. These parameters, although guaranteed, are not 100% tested in production.
5. Parameters measured at trip point of latch with VFB = 0.
6. Gain defined as: A =
∆VCOMP/∆VSENSE; 0 ≤ VSENSE ≤ 0.8 V.
*Adjust VCC above the start threshold before setting at 15 V.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   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