BU4921F-TR ROHM

Datasheet Voltage Detector IC Series Low Voltage Standard CMOS Voltage Detector ICs BU48xx series BU49xx series General Description Key Specifications ROHM standard CMOS reset IC series is a high-accuracy, Detection voltage: 0.9V to 4.8V 0.1V steps low current consumption reset IC series. The lineup was established with two output types (Nch open drain and High accuracy detection voltage: 1.0% CMOS output) and detection voltage range from 0.9V to Ultra-low current consumption: 0.55A (Typ.) 4.8V in increments of 0.1V, so that the series may be Operating temperature range: -40C to +125C selected according to the application at hand. Package Features SSOP5 2.90mm x 2.80mm x 1.25mm Ultra-low current consumption SOP4 2.00mm x 2.10mm x 0.95mm High accuracy detection, Ultra-low voltage detection VSOF5 1.60mm x 1.60mm x 0.60mm Two output types (Nch open drain and CMOS output) Wide operating temperature range Applications Very small and low height package All electronic devices that use micro controllers and logic Package SSOP5 and SOP4 is similar to SOT-23-5 and circuits SC-82 respectively (JEDEC) Typical Application Circuit VDD1 VDD1 VDD2 RL Micro RST BU49xx Micro controller RST BU48xx controller CIN CIN CL CL (Capacitor for (Capacitor for noise filtering) noise filtering) GND GND Open Drain Output type CMOS Output type BU48xx series BU49xx series Product structure Silicon monolithic integrated circuit This product is not designed for protection against radioactive rays .w ww.rohm.com TSZ02201-0R7R0G300060-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/15 TSZ2211114001 11.Dec.2020 Rev.013 BU48xx series BU49xx series Connection Diagram & Pin Descriptions SSOP5 SOP4 N.C. N.C. GND N.C. TOP VIEW TOP VIEW 4 3 Lot. No Marking Lot. No Marking 1 2 VOUT VDD VOUT VDD GND PIN PIN Symbol Function Symbol Function No. No. 1 VOUT Reset output 1 VOUT Reset output 2 VDD Power supply voltage 2 VDD Power supply voltage 3 GND GND 3 N.C. Unconnected terminal 4 N.C. Unconnected terminal 4 GND GND 5 N.C. Unconnected terminal VSOF5 TOP VIEW GND VDD 5 4 Lot. No Marking 2 3 1 VOUT SUB N.C . PIN Symbol Function No. 1 VOUT Reset output 2 SUB Substrate* 3 N.C. Unconnected terminal 4 VDD Power supply voltage 5 GND GND *Connect the substrate to VDD Ordering Information B U x x x x x - T R Part Output Type Reset Voltage Value Package Packaging and Number 48 : Open Drain 09 : 0.9V G : SSOP5 forming specification 49 : CMOS 0.1V step F : SOP4 TR : Embossed tape 48 : 4.8V FVE : VSOF5 and reel www.rohm.com TSZ02201-0R7R0G300060-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/15 TSZ2211115001 11.Dec.2020 Rev.013