CS2841B
Electrical Characteristics:
continued
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
Output Section
Output Low Level
Output High Level
Rise Time
Fall Time
Output Leakage
s
Total Standby Current
Start-Up Current
Operating Supply Current I
CC
V
FB
=V
Sense
=0V, R
T
=10kΩ, C
T
=3.3nF
s
Under-Voltage Lockout Section
Start Threshold
Min. Operating Voltage
After Turn On
7.6
7.0
8.0
7.4
8.4
7.8
V
V
0.5
11
1.0
17
mA
mA
I
SINK
=20mA
I
SINK
=200mA
I
SOURCE
=20mA
I
SOURCE
=200mA
T
J
=25˚C, C
L
=1nF (Note 2)
T
J
=25˚C, C
L
=1nF (Note 2)
Undervoltage Active, V
OUT
=0
13.0
12.0
0.1
1.5
13.5
13.5
50
50
-0.01
150
150
-10.00
0.4
2.2
V
V
V
V
ns
ns
µA
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
8L PDIP
1
2
3
4
5
14L SO Narrow
1
3
5
7
8
9
COMP
V
FB
Sense
OSC
Gnd
Pwr Gnd
V
OUT
V
CC
Pwr
V
CC
V
REF
NC
Error amp output, used to compensate error amplifier
Error amp inverting input
Noninverting input to Current Sense Comparator
Oscillator timing network with Capacitor to Ground, resistor
to V
REF
Ground
Output driver Ground
Output drive pin
Output driver positive supply
Positive power supply
Output of 5V internal reference
No Connection
6
10
11
7
8
12
14
2,4,6,13
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
