SG5841JDZ Fairchild Semiconductor, SG5841JDZ Datasheet

no-image

SG5841JDZ

Manufacturer Part Number
SG5841JDZ
Description
IC PWM CTLR GREEN MODE 8-DIP
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of SG5841JDZ

Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
68kHz
Duty Cycle
70%
Voltage - Supply
10 V ~ 24.7 V
Buck
No
Boost
No
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-20°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Frequency-max
68kHz
Output Voltage
1.5 V to 7.5 V
Output Current
230 mA
Input Voltage
0.3 V to 7 V
Operating Temperature Range
- 20 C to + 85 C
Mounting Style
SMD/SMT
Duty Cycle (max)
70 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG5841JDZ
Manufacturer:
Fairchild Semiconductor
Quantity:
135
Part Number:
SG5841JDZ
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Company:
Part Number:
SG5841JDZ
Quantity:
9 800
Company:
Part Number:
SG5841JDZ
Quantity:
7 000
© 2006 Fairchild Semiconductor Corporation
SG5841J • Rev. 1.3.4
SG5841J — Highly Integrated Green-Mode PWM
Controller
Features
Applications
General-purpose, switch-mode, power supplies and
flyback power converters, including:
Ordering Information
Part Number
SG5841JSZ
SG5841JSY
SG5841JDZ
SG5841SZ
SG5841SY
SG5841DZ
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
Green-Mode PWM Controller
Low Startup Current : 14µA
Low Operating Current: 4mA
Programmable PWM Frequency with Hopping
Peak-Current-Mode Control
Cycle-by-Cycle Current Limiting
Synchronized Slope Compensation
Leading-Edge Blanking (LEB)
Constant Output Power Limit
Totem Pole Output with Soft Driving
V
Programmable Over-Temperature Protection (OTP)
Internal Open-Loop Protection
V
GATE Output Maximum Voltage Clamp:18V
Power Adapters
Open-Frame SMPS
DD
DD
Over-Voltage Clamping
Under-Voltage Lockout (UVLO)
Temperature Range
Ambient Operating
-20 to +85°C
-20 to +85°C
-20 to +85°C
-20 to +85°C
-20 to +85°C
-20 to +85°C
Frequency
Hopping
Yes
Yes
Yes
No
No
No
Description
The highly integrated SG5841/J series of PWM
controllers provides several features to enhance the
performance of flyback converters.
To minimize standby power consumption, a proprietary
green-mode function provides off-time modulation to
continuously decrease the switching frequency at light-
load conditions. This green-mode function enables the
power supply to meet international power conservation
requirements. To further reduce power consumption,
SG5841/J is manufactured using the BiCMOS process.
This allows a low startup current, around 14µA, and an
operating current of only 4mA. As a result, a large
startup resistance can be used.
The built-in synchronized slope compensation achieves
stable peak-current-mode control. The proprietary
internal sawtooth power-limiter ensures a constant
output power limit over a wide range of AC input
voltages, from 90V
SG5841/J provides many protections. In addition to
cycle-by-cycle current limiting, the internal open-loop
protection circuit ensures safety should an open-loop or
output-short-circuit failure occur. PWM output is
disabled until V
then the controller restarts. An external NTC thermistor
can be applied for over-temperature protection.
SG5841/J is available in an 8-pin DIP or SOP package.
Status
RoHS
Green
RoHS
Green
RoHS
RoHS
Eco
8-Pin Small Outline Package (SOP)
8-Pin Dual Inline Package (DIP)
8-Pin Small Outline Package (SOP)
8-Pin Small Outline Package (SOP)
8-Pin Small Outline Package (SOP)
8-Pin Dual Inline Package (DIP)
DD
AC
drops below the UVLO lower limit,
to 264V
AC
Package
.
October 2008
www.fairchildsemi.com

Related parts for SG5841JDZ

SG5841JDZ Summary of contents

Page 1

... Open-Frame SMPS Ordering Information Ambient Operating Part Number Temperature Range SG5841JSZ -20 to +85°C SG5841JSY -20 to +85°C SG5841JDZ -20 to +85°C SG5841SZ -20 to +85°C SG5841SY -20 to +85°C SG5841DZ -20 to +85°C For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2006 Fairchild Semiconductor Corporation SG5841J • ...

Page 2

... Typical Application Block Diagram © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 Figure 1. Application Diagram Figure 2. Block Diagram 2 www.fairchildsemi.com ...

Page 3

... Marking Information SG5841HTP XXXX XXXXYWW marking for SG5841JSZ (pb-free) marking for SG5841JDZ (pb-free) marking for SG5841SZ (pb-free) marking for SG5841DZ (pb-free) ZXYTT 5841/J TPM marking for SG5841JSY (green-compound) marking for SG5841SY (green-compound) © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 ...

Page 4

... SENSE Sense Power 7 VDD Supply 8 GATE Driver Output © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 GND FB VIN RI Figure 4. Pin Configuration Description Ground. The signal from the external compensation circuit is fed into this pin. The PWM duty cycle is determined in response to the signal from this pin and the current- sense signal from pin 6 ...

Page 5

... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter T Operating Ambient Temperatures A © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 Parameter DIP < 50° SOP DIP ...

Page 6

... FB-OPEN V FB Open-Loop Trigger Level FB-OLP Delay Time of FB Pin Open-Loop t D-OLP Protection V Green-Mode Entry FB Voltage FB-N V Green-Mode Ending FB Voltage FB-G f OSC © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 Conditions V =V –0.16V DD DD-ON V =15V, R =26KΩ GATE=OPEN R =26KΩ ...

Page 7

... CLAMP RT Section I Output Current of RT Pin RT Trigger Voltage for Over- V RTTH Temperature Protection V OTP Release Voltage RT-RLS Over-Temperature t D-OTP Debounce © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 (Continued) Conditions Min. 0.85 V –V STHFL STHVA R =26KΩ =26KΩ 200 ...

Page 8

... V Voltage (V) DD Figure 8. Operating Current (I vs. V 11. 0 10 -25 - Temperature (°C) Figure 10. Minimum Operating Voltage (V vs. Temperature © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3 110 125 ) vs. Temperature Figure 7. Operating Supply Current (I DD-ST 17. 0 16. 5 16. 0 15 DD-OP Voltage DD 68 ...

Page 9

... Figure 12. Maximum Duty Cycle (DCY 0.66 0.65 0.64 0.63 0.62 0.61 0.60 0.59 0.58 Figure 13. Trigger Voltage for Over-Temperature Protection V 108 104 100 96 92 Figure 14. Output Current of RT Pin (I © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 (Continued) -40 -25 - Temperature (°C) MAX -40 -25 - ...

Page 10

... COMP FB terminated immediately. V COMP variable voltage around 0.85V for output power limit. © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 Leading-Edge Blanking (LEB) Each time the power MOSFET is switched on, a turn-on spike occurs at the sense-resistor. To avoid premature termination of the switching pulse, a leading-edge blanking time is built in ...

Page 11

... V = × Ω 115 OLP (ms) © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 When V can A the controller totally shuts down. V the turn-on threshold voltage of 16V through the startup resistor until PWM output is restarted. This protection = I × NTC ...

Page 12

... C9 EC 10µF/50V C10 CC 222pF/50V C11 CC 470pF/50V C12 CC 102pF/50V (Option) D1 LED D2 Diode BYV95C D3 TVS P6KE16A D4 Diode FR103 F1 FUSE 4A/250V Choke (900µ Choke (10mH) Inductor (2µ Diode 20A/100V © 2006 Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 BD1 GND GATE VDD R16 ...

Page 13

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...

Page 14

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...

Page 15

... Fairchild Semiconductor Corporation SG5841J • Rev. 1.3.4 15 www.fairchildsemi.com ...

Related keywords