CS3845BGN8 View Datasheet(PDF) - Cherry semiconductor
Part Name
Description
View to exact match
CS3845BGN8 Datasheet PDF : 6 Pages
| |||
Electrical Characteristics: continued
PARAMETER
TEST CONDITIONS
MIN
TYP
s Total Standby Current
Start-Up Current
300
Operating Supply Current VFB=VSense=0V RT=10kΩ, CT=3.3nF
11
VCC Zener Voltage
ICC=25mA
34
MAX UNITS
500
µA
17
mA
V
s PWM Section
Maximum Duty Cycle
Minimum Duty Cycle
46
48
50
%
0
%
s Under-Voltage Lockout Section
Start Threshold
Min. Operating Voltage
After Turn On
Notes:
1. These parameters, although guaranteed, are not 100% test-
ed in production.
2. Parameter measured at trip point of latch with VFB=0
7.8
8.4
7.0
7.6
9.0
V
8.2
V
3. Gain defined as: A =
∆VCOMP
∆VSense
; 0 ≤ VSense ≤ 0.8V.
PACKAGE PIN #
8L PDIP & SO 14L SO
1
1
2
3
3
5
4
7
5
9
6
10
7
12
8
14
8
11
2, 4, 6, 13
Package Pin Description
PIN SYMBOL
FUNCTION
COMP
VFB
Sense
OSC
Gnd
VOUT
VCC
VREF
Pwr Gnd
VCC Pwr
NC
Error amp output, used to compensate error amplifier
Error amp inverting input
Noninverting input in Current Sense Comparator
Oscillator timing network with Capacitor to Gnd, resistor
to VREF
Ground
Output drive pin
Positive power supply
Output of 5V internal reference
Output driver Gnd
Output driver positive supply
No Connection
3
Share Link: 