CM2026
D
UAL
USB P
OWER
C
ONTROL
S
WITCH
PIN DESCRIPTION
Pin No.
1,4
EN(1/2)
Symbol
1.
2.
2,3
6
7
8,5
FLG(1/2)
GND
IN
OUT(1/2)
Description
V
IN
= 3.3V, Enable (Input): Logic-compatible enable input. High input > 2.1V
typical. Low input < 1.9V typical. Do not float.
V
IN
= 5V, Enable (Input): Logic-compatible enable input. High input > 3.5V
typical. Low input < 3.3V typical. Do not float.
Fault Flag (Output): open-drain output. Indicates overcurrent, UVLO, and thermal
shutdown.
Ground: Supply return.
Supply Input: Output MOSFET drain. Also supplies IC's internal circuitry. Connect
to positive supply.
Switch Output: Output MOSFET source. Typically connect to switched side of
load.
BLOCK DIAGRAM
5V
R3
R2
47K
R1
47K
U1 CM2026
VIN
ON/OFF
1
2
4.5~5V
3
4
3
2
1
4
FLG2
EN2
GND
OUT2
6
5
J2
1
2
3
4
USBPORT1
J3
1
2
3
4
USBPORT1
EN1
FLG1
OUT1
IN
8
7
C1
0.1U
CM1085
3.3V
10K
R4
10K
ON/OFF
usb mcu
3.3 USB CPU
ORDERING INFORMATION
Part Number
CM2026IS
CM2026IP
Enable
Active High
Active High
Temperature Range
-40℃ to +85℃
-40℃ to +85℃
Package
8-Pin SOIC (S08)
8-Pin PDIP (P08)
2002/05/29
Rev. 2
Champion Microelectronic Corporation
Page 2
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
