CS2841B Datasheet, PDF (3/6 Pages) Cherry Semiconductor Corporation – Automotive Current Mode PWM Control Circuit

PARAMETER
s Output Section
Output Low Level
Output High Level
Rise Time
Fall Time
Output Leakage
Electrical Characteristics: continued
TEST CONDITIONS
MIN
I_SINK=20mA
I_SINK=200mA
I_SOURCE=20mA
13.0
I_SOURCE=200mA
12.0
T_J=25˚C, C_L=1nF (Note 2)
T_J=25˚C, C_L=1nF (Note 2)
Undervoltage Active, V_OUT=0
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
7.6
Min. Operating Voltage
After Turn On
7.0
TYP
0.1
1.5
13.5
13.5
50
50
-0.01
0.5
11
8.0
7.4
MAX
UNIT
0.4
V
2.2
V
V
V
150
ns
150
ns
-10.00 µA
1.0
mA
17
mA
8.4
V
7.8
V
PACKAGE PIN #
8L PDIP 14L SO Narrow
1
1
2
3
3
5
4
7
5
8
9
6
10
11
7
12
8
14
2,4,6,13
Package Pin Description
PIN SYMBOL
FUNCTION
COMP
V_FB
Sense
OSC
Gnd
Pwr Gnd
V_OUT
V_CCPwr
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
3