sg6846csz ETC-unknow, sg6846csz Datasheet - Page 5

• Manufacturer Part Number: sg6846csz
• Description: Highly-integrated Green-mode Pwm Controller
• Manufacturer: ETC-unknow

Highly-Integrated Green-Mode PWM Controller
Current Sense Section
Symbol
Z
T
B
V
V
V
V
T
Oscillator Section
Symbol
F
F
V
V
S
F
F
© System General Corp.
Version 1.0(IAO33.0008.B0)
CS
PD
NK
TH-P
TH-P
TH-O
TH-O
DELAY-OCP
OSC
OSC-GREEN
N
G
G
DV
DT
@V
@V
@V
@V
IN
IN
IN
IN
=1V
=3V
=1V
=3V
Parameter
Input Impedance
Delay to Output
Leading Edge Blanking Time
Threshold Voltage for Current Limit
Threshold Voltage for Current Limit
2/3 Threshold Voltage for Current Limit
2/3 Threshold Voltage for Current Limit
The Delay Time for Over-current Protection
Parameter
PWM Frequency
Green-mode Frequency
FB Pin Threshold for the Beginning of Green
Mode
Green-OFF Mode Voltage at FB pin
Slope for Green-Mode Modulation
Frequency Variation Versus VDD Deviation
Frequency Variation Versus Temp. Deviation
F
F
F
OSC
OSC-GREEN
OSC-GOFF
: 65kHz
: 0kHz
: 22.5kHz
Frequenc
y
S
G
: 85Hz/mV
V
G
: 1.6V
- 5 -
Test Condition
VIN = 1V, RI = 26kè
VIN =3V, RI = 26kè
VIN = 1V, RI = 26kè
VIN =3V, RI = 26kè
RI = 26Kè
Test Condition
RI = 26kè
RI = 26kè
RI = 26kè
VDD = 11.5V to 20V
T
A
= -30 to 85 :
V
N
: 2.1V
Min.
Min.
60
20
PWM Frequency
V
B
F
Typ.
12
360
0.83
0.70
0.61
0.51
96
Typ.
65
22.5
2.1
85
1.5
100
1.6
Product Specification
Max.
200
Max.
70
25
5
5
www.sg.com.tw
Sep. 30, 2004
SG6846
Unit
k
nsec
nsec
V
V
V
V
msec
Unit
KHz
KHz
V
V
Hz/mV
%
%