Document
Datasheet
Voltage Detector IC Series
Counter Timer Built-in CMOS Voltage Detector IC
BD45xxx series BD46xxx series
●General Description ROHM’s BD45xxx and BD46xxx series are highly accurate, low current consumption Voltage Detector ICs. Because the counter timer delay circuit is built into these series, an external capacitor for the delay time setting is unnecessary. The lineup was established with low output types (Nch open drain and CMOS output) and detection voltages range from 2.3V to 4.8V in increments of 0.1V, so that the series may be selected according the application at hand. ●Features Counter Timer Built-in No delay time setting external capacitor required Ultra-low current consumption Two output types (Nch open drain and CMOS output) Package SSOP5 is similar to SOT-23-5 (JEDEC) 2.3V to 4.8V (Typ.) 0.1V steps High accuracy detection voltage: ±1.0% Ultra-low current consumption: 0.85µA (Typ.) Operating temperature range: -40°C to +105°C Three internal, fixed delay time: 50ms 100ms 200ms ●Package SSOP5 2.90mm x 2.80mm x 1.25mm ●Applications Circuits using microcontrollers or logic circuits that require a reset. ●Key Specifications Detection voltage:
●Typical Application Circuit
VDD1 RL BD45xxx RST Micro controller BD46xxx RST Micro controller VDD2 VDD1
CL
(Noise-filtering Capacitor)
CL GND
(Noise-filtering Capacitor)
GND
(Open Drain Output Type) BD45xxx series ●Connection Diagram SSOP5 VDD VOUT PIN No. 1 2
TOP VIEW
(CMOS Output Type) BD46xxx series ●Pin Descriptions
Symbol ER SUB GND VOUT VDD
Function Manual Reset Substrate * GND Reset Output Power Supply Voltage
3 Lot. No 4 5
Marking ER SUB GND
*Connect the substrate to GND.
○Product structure:Silicon monolithic integrated circuit . www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001
○This product is not designed for protection against radioactive rays
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TSZ02201-0R7R0G300010-1-2 15.Nov.2013 Rev.007
BD45xxx series BD46xxx series
●Ordering Information
Datasheet
B
Part Number
D
x
x
x
x
x
x
-
T
R
Output Type 45 : Open Drain 46 : CMOS
Reset Voltage Value 23 : 2.3V 0.1V step 48 : 4.8V
Counter Timer Package Delay Time Settings G : SSOP5 5 : 50ms 1 : 100ms 2 : 200ms
Packaging and forming specification TR : Embossed tape and reel
SSOP5
2.9±0.2
5 4
+6° 4° −4°
Tape Quantity Direction of feed Embossed carrier tape 3000pcs TR
The direction is the 1pin of product is at the upper right when you hold
+0.2 1.6 −0.1
2.8±0.2
1
2
3
0.2Min.
( reel on the left hand and you pull out the tape on the right hand
1pin
)
+0.05 0.13 −0.03
1.25Max.
S +0.05 0.42 −0.04 0.95 0.1 S
1.1±0.05
0.05±0.05
Direction of feed
(Unit : mm)
Reel
∗ Order quantity needs to be multiple of the minimum quantity.
●Lineup Table 1. Open Drain Output Type Counter Timer Delay Time Settings 50ms Detection Voltage Marking T0 4.8V T1 4.7V T2 4.6V T3 4.5V T4 4.4V T5 4.3V T6 4.2V T7 4.1V T8 4.0V T9 3.9V TA 3.8V TB 3.7V TC 3.