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Details, datasheet, quote on part number:UPD16855DG
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Datasheet text preview:
DATA SHEET
µPD16855A/B/C/D
DUAL HIGH-SIDE SWITCH FOR USB APPLICATION
MOS INTEGRATED CIRCUIT
DESCRIPTION
This product is the power switch IC with over current limit, used for the power supply bus of the Universal-SerialBus (USB). 2 circuit builds in the Pch power MOSFET in the switch part, and this product realizes low on resistance (100 m TYP.) respectively. And the over current detection, the thermal-shutdown circuit, an under voltage locked-out (UVLO) circuit whose functions are necessary in the Host/HUB-controller of the USB standard are built in. And the over-current-detect result can be reported to the controller by flag-pin. This product builds in each two circuits of the power switch, control-pins and flag-pins, and this IC can be able to control the power supply bus in 2 USB port. There are four kinds of this product by the input logic of the control signal and switch operation in over-current detect.
FEATURES
· Pch power MOSFET, 2 circuit building in · Over-current detection circuit is built in and its result is outputted from flag-pin ("L" active) · Prevent from dropping power supply by over current limit circuit · Thermal shutdown circuit building in · Under Voltage Locked Out (UVLO) circuit building in · Switch on/off control is possible by the control-pin. · 8 pin DIP/SOP package
ORDERING INFORMATION
PART NO. PACKAGE 8-pin plastic DIP (300mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil)
µPD16855BC µPD16855AG µPD16855BG µPD16855CG µPD16855DG
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. S13020EJ1V0DS00 (1st edition) Date Published February 1999 N CP(K) Printed in Japan
©
1998
µPD16855
BLOCK DIAGRAM
IN (Input) 7
OUT1 8 (Output1)
5
OUT2 (Output2)
Ref. Voltage Over Current Detect Gate Control Gate Control
Ref. Voltage Over Current Detect
FLG1 2 (Flag Out1)
UVLO
3
FLG2 (Flag Out2)
Thermal Shutdown
6 GND
1 CTL1 (Control Input1)
4 CTL2 (Control Input2)
Note The internal resister doesn't connect to input terminal of CTL1 (1 pin) and CTL2 (4 pin). Therefore the input level must be "H" or "L" even if these pins aren't used.
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Data Sheet S13020EJ1V0DS00
µPD16855
CONNECTION DIAGRAM (TOP VIEW)
CTL1 FLG1 FLG2 CTL2
1 2 3 4
8 7 6 5
OUT1 IN GND OUT2
8-Pin DIP/SOP
PIN CONFIGURATION
PIN No. 1/4 2/3 6 7 8/5 SYMBOL CTL1/CTL2 FLG1/FLG2 GND IN OUT1/OUT2 I/O Input Output Power Power (Input) Output Control : TTL Input Over Current Detect Flag : Active-L, Nch open-drain Ground Power Supply : Source of MOSFET Output of Switch : Drain of MOSFET FUNCTION
DESCRIPTION of µPD16855A/B/C/D FUNCTION
Abstract of Function PART No. CTL Input Logic Switch Operation with Over-Current Detect Over-Current Limit Operation. Switch Off with CTL Input "L" Over-Current Limit Operation. Switch Off with CTL Input "H" Switch Off regardless of CTL Input
µPD16855AG µPD16855BC/BG µPD16855CG µPD16855DG
"H" active "L" active "H" active "L" active
Data Sheet S13020EJ1V0DS00
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