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PDF RT9816 Data sheet ( Hoja de datos )
| Número de pieza | RT9816 | |
| Descripción | Micro-Power Voltage Detectors | |
| Fabricantes | Richtek Technology Corporation | |
| Logotipo |  |
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RT9816
Micro-Power Voltage Detectors with Manual Reset
General Description
www.datasheet4u.com
The RT9816 is a micro-power voltage detector with
deglitched manual reset input supervising the power
supply voltage level for microprocessors (μP) or digital
systems. It provides internally fixed threshold levels with
0.1V per step ranging from 1.0V to 5V, which covers most
digital applications. It features low supply current of 3μA.
The RT9816 performs supervisory function by sending
out a reset signal whenever the VDD voltage falls below a
preset threshold level. This reset signal will last the whole
period before VDD recovering. Once VDD recovered
upcrossing the threshold level, the reset signal will be
released after a certain delay time. To pull reset signal
low manually, just pull the manual reset input (MR) below
the specified VIL level. RT9816 is provided in SC-82
package.
Ordering Information
RT9816 -
Package Type
Y : SC-82
Operating Temperature Range
C : Commercial Standard
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Threshold Voltage
12 : 1.2V
13 : 1.3V
:
49 : 4.9V
50 : 5.0V
Note :
Reset Active Timeout Period
A = 0ms (RESET)
B = 55ms (RESET)
C = 220ms (RESET)
D = 450ms (RESET)
E = 0ms (RESET)
F = 55ms (RESET)
G = 220ms (RESET)
H = 450ms (RESET)
RichTek Pb-free and Green products are :
`RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
`Suitable for use in SnPb or Pb-free soldering processes.
`100%matte tin (Sn) plating.
DS9816-03 March 2007
Features
z Internally Fixed Threshold 1.0V to 5V in 0.1V Step
z High Accuracy ±1.5%
z Low Supply Current 3μA
z No External Components Required
z Quick Reset within 20μs
z Built-in Recovery Delay Include 0ms, 55ms, 220ms,
450ms Options
z 800ns Glitch Immunity of Manual Reset Input
z Low Functional Supply Voltage 0.9V
z N-Channel Open-Drain Output,
z Small SC-82 Package
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Computers
z Controllers
z Intelligent Instruments
z Critical μP and μC Power Monitoring
z Portable/Battery-Powered Equipment
Marking Information
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
Pin Configurations
(TOP VIEW)
VDD
MR
43
12
GND RESET/
RESET
SC-82
Note : There is no pin1 indicator on top mark for SC-82 type,
and pin 1 will be lower left pin when reading top mark from
left to right. Pin2 of SC-82 is wider than other pins.
www.richtek.com
1
1 page  
Typical Operating Characteristics
Nch Driver Output Current vs. VDS
2.4
RT9816A-12
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2
VDD = 1.1V
1.6
1.2
VDD = 1.0V
0.8
0.4
0
0 0.3 0.6 0.9 1.2 1.5
VDS (V)
Nch Driver Output Current vs. VDS
120
RT9816A-45
100
80
60 VDD = 4.4V
= 4.0V
40 = 3.5V
= 3.0V
= 2.5V
20 = 2.0V
= 1.5V
0
012345
VDS (V)
Supply Current vs. Input Voltage
6
RT9816A-12
5 80°C
4
25°C
3
2 -30°C
1
0
0123456
Input Voltage (V)
DS9816-03 March 2007
RT9816
Nch Driver Output Current vs. VDS
60
RT9816C-30
50 VDD = 2.8V
40 VDD = 2.5V
30
VDD = 2.0V
20
10 VDD = 1.5V
0
0 0.5 1 1.5 2 2.5 3 3.5
VDS (V)
Output Voltage vs. Input Voltage
7
RT9816
6
5
4
3
4.5V
2
1 1.2V
0
0123456
Input Volgate (V)
Supply Current vs. Input Voltage
4
RT9816C-30
3.5
3 80°C
2.5
25°C
2
1.5 -30°C
1
0.5
0
0123456
Input Voltage (V)
www.richtek.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RT9816.PDF ] | |
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