SG6846GLSY Fairchild Semiconductor, SG6846GLSY Datasheet - Page 2

• Manufacturer Part Number: SG6846GLSY
• Description: IC CTLR PWM HI INTEGRATED 8-SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of SG6846GLSY

• Output Isolation: Isolated
• Frequency Range: 44.8kHz ~ 136kHz
• Voltage - Input: 11.5 V ~ 25 V
• Power (watts): 400mW
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number Of Outputs: 1
• Duty Cycle (max): 90 %
• Mounting Style: SMD/SMT
• Switching Frequency: 68 KHz
• Maximum Operating Temperature: + 105 C
• Fall Time: 50 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 350 ns
• Synchronous Pin: No
• Topology: Flyback
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2008 Fairchild Semiconductor Corporation
SG6846G • Rev. 1.0.2
Typical Application
Block Diagram
VDD 7
VIN
RT
3
5
AC input
N
L
0.9V/0.7V
I
RT
Filter
EMI
1.05V
3
4
2
V
23.6V
16.5V/10.5V
FB
VIN
RI
DD
-TH-G
UVLO
SG6846G
VDD
GND
7
1
Over Power Compensation
Latch
SENSE
GATE
1.18-0.08
RT
Figure 1. Typical Application
+
Debounce
8
6
5
Figure 2. Block Diagram
Internal
BIAS
X
V
+
IN
OCP
Delay
GND
2
1
Q
R
S
OSC
Compensation
1.15V
Slope
1R
+
+
1R
Green
Mode
Soft
Driver
1R
Ri
4
3R
Blanking
Circuit
VDD
R
6V
VO-
VO+
8
2
6
www.fairchildsemi.com
SENSE
GATE
FB