CS2841B Datasheet, PDF (2/10 Pages) Cherry Semiconductor Corporation – Automotive Current Mode PWM Control Circuit

CS2841B
V_CC
GND
OSC
V_FB
COMP
Sense
Undervoltage
Lockout Circuit
8.0 V/7.4 V
2.5 V
Oscillator
+
−
Error
V_C
Amplifier
2R
R
Set/
5.0 V
Reset Reference
Output
Enable
S
1.0 V
R
Current
Sensing
Comparator
Internal
Bias
NOR
PWM
Latch
Figure 1. Block Diagram
V_CC Pwr
V_REF
V_OUT
Pwr GND
MAXIMUM RATINGS
Rating
Value
Unit
Supply Voltage (Low Impedance Source)
40
V
Output Current
±1.0
A
Output Energy (Capacitive Load)
5.0
mJ
Analog Inputs (V_FB, Sense)
Error Amp Output Sink Current
−0.3 to 5.5
V
10
mA
Lead Temperature Soldering
Wave Solder (through hole styles only) Note 1
260 peak
°C
Reflow (SMD styles only) Note 2
230 peak
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. 10 seconds max
2. 60 seconds max above 183°C
ORDERING INFORMATION
Device
Package
Shipping^†
CS2841BEBN8
PDIP−8
50 Units / Rail
CS2841BEBN8G
PDIP−8
(Pb−Free)
50 Units / Rail
CS2841BED14
SOIC−14
55 Units / Rail
CS2841BED14G
SOIC−14
(Pb−Free)
55 Units / Rail
CS2841BEDR14
SOIC−14
2500 / Tape & Reel
CS2841BEDR14G
SOIC−14
(Pb−Free)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
2