SG6841SZ Fairchild Semiconductor, SG6841SZ Datasheet - Page 7

• Manufacturer Part Number: SG6841SZ
• Description: IC CTLR PWM HI INTEGRATED 8-SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of SG6841SZ

• Frequency - Max: 70kHz
• Pwm Type: Controller
• Number Of Outputs: 1
• Duty Cycle: 90%
• Voltage - Supply: 10 V ~ 20 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High-integrated Green-mode PWM Controller
TYPICAL CHARACTERISTICS
©System General Corp.
Version 2.1 (IRO33.0001.B5)
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
64.4
64.3
64.2
64.1
64.0
63.9
63.8
63.7
70
60
50
40
30
20
10
Start-up Current (I
0
1.1
PWM Oscillator Frequency (Fosc) vs
-40
-40
-25
-25
1.4
Frequency vs. FB Voltage
-10
-10
Tem perature
5
5
1.7
TEMPERATURE ( ℃ )
TEMPERATURE ( ℃ )
FB VOLTAGE (V)
20
20
DD ST
35
35
2
) vs Tem perature
50
50
2.3
65
65
80
80
2.6
95
95
110 125
110 125
2.9
- 7 -
35
30
25
20
15
10
10.52
10.50
10.48
10.46
10.44
10.42
10.40
10.38
10.36
10.34
84.75
84.70
84.65
84.60
84.55
84.50
84.45
84.40
84.35
84.30
84.25
84.20
5
0
Frequency in green mode (Fosc-green) vs
0
Start-up Current (I
-40
-40
-25
Maximum Duty Cycle DC(
-25
2
-10
-10
4
5
Temperature
5
TEMPERATURE (℃)
VDD VOLTAGE (V)
TEMPERATURE (℃)
Temperature
6
20
20
DD ST
35
35
Product Specification
8
) vs VDD Voltage
50
50
10
65
65
MAX.
www.sg.com.tw
80
80
12
)vs
95
Jun.15,2006
95
SG6841
110 125
14
110 125
16