SG1845Y Microsemi Analog Mixed Signal Group, SG1845Y Datasheet - Page 5

• Manufacturer Part Number: SG1845Y
• Description: IC PWM CURRENT MODE 8-DIP
• Manufacturer: Microsemi Analog Mixed Signal Group

Specifications of SG1845Y

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 50%
• Voltage - Supply: 8.3 V ~ 30 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 8-DIP
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption

Copyright © 2000
Rev. 1.6c
CURRENT SENSE
** - POWER GROUND and GROUND are internally connected for 8-pin packages.
* - V
GROUND**
CC
COMP
R
and V
V
T
/C
CC
V
FB
*
T
C
are internally connected for 8-pin packages.
OSCILLATOR
ERROR AMP
34V
16V (1844)
8.4 (1845)
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
2.5V
C
U R R E N T
P
R O D U C T I O N
0.8V (1845)
UVLO
6V (1844)
2R
- M
B L O C K D I A G R A M
R
O D E
GOOD LOGIC
S / R
V
REF
1V
P W M C
REF
5V
D
A T A
CURRENT SENSE
COMPARATOR
O N T R O L L E R
S
H E E T
S
R
SG1844/SG1845 Series
T
PWM
LATCH
INTERNAL
BIAS
V
5.0V
50mA
V
OUTPUT
POWER GROUND**
REF
C
*
5