CONTROL IC. CP6238 Datasheet

CP6238 IC. Datasheet pdf. Equivalent


ETC CP6238
CP6238
BOOST CONVERT CONTROL IC
GENERAL DESCRIPTION
The CP6238 is a boost topology switching regulator control IC for battery-used applications
field. The CP6238 includes a totem-pole single output stage for driving NPN transistor or
N-MOS, high precision reference (0.5V) for comparing output voltage with feedback amplifier,
an internal dead-time control for controlling the minimum duty cycle, programmable soft start
with short circuit protection function and logic level control for operating mode or standby
mode.
FEATURES
Wide supply voltage operating range: 1.8 to 15V
Reference voltage precision: 2%
Low current consumption: Operation Mode 5.5mA
Standby-by Mode 1µA
High speed oscillator frequency: 1MHz max.
Programmable Soft Start function (SS)
Short Circuit Protection function(SCP)
Totem-pole output with adjustable on/off current
(for NPN transistors or n-channel MOSFET)
Logic level control stand-by mode function
Package: SOP8/TSSOP8
SOP8
TYPICAL APPLICATION
Digital Camera
PDA
Portable Equipment


CP6238 Datasheet
Recommendation CP6238 Datasheet
Part CP6238
Description BOOST CONVERT CONTROL IC
Feature CP6238; CP6238 BOOST CONVERT CONTROL IC GENERAL DESCRIPTION The CP6238 is a boost topology switching regulat.
Manufacture ETC
Datasheet
Download CP6238 Datasheet




ETC CP6238
FUNCTIONAL BLOCK DIAGRAM
37
CP6238
Reference
voltage supply
1.25V
0.8V
0.1V
1 36k
Error Amp.
0.5V
500K
8
Sawtooth wave
oscillator
0.1V
PWM
Comp.
DTC 0.6V
Output drive
control circuit
0.22V
Soft start &
SCP circuit
62
4
5
30k
MARK VIEW
CP6238
PIN DESCRIPTION
Name No.
FB 1
SCP 2
VCC
BR/CTL
OUT
GND
3
4
5
6
OSC 7
COMP 8
I/O Description
I Error amplifier inverting input pin
I
Connected a capacitor
Soft start and SCP function pin
P IC power supply
I Output current setting and control pin
O Totem-pole output
P IC ground
I
Capacitor and resistor connected for
the frequency of oscillation
O Error amplifier compensation output



ETC CP6238
ORDER INFORMATION
Part Number Operating Temperature
CP6238D-LF
-10°C ~ +85°C
CP6238DR-LF
-10°C ~ +85°C
CP6238W-LF
-10°C ~ +85°C
CP6238WR-LF
-10°C ~ +85°C
CP6238
Package
SOP8
SOP8
TSSOP8
TSSOP8
Description
Tube
Tape & Reel
Tube
Tape & Reel
IC DATE CODE DISTINGUISH
CP6238
L
Lead Free
Lot Number
Mass Production Version
Per Half Month
Year
FOR EXAMPLE:
January
A (Front Half Month), B (Last Half Month)
February
C, D
March
E, F ------------And so on
Lot Number is the last two numbers
For Example:







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