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CS8129YDW16 데이터시트 PDF




Cherry Semiconductor Corporation에서 제조한 전자 부품 CS8129YDW16은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 CS8129YDW16 자료 제공

부품번호 CS8129YDW16 기능
기능 5V/ 750mA Low Dropout Linear Regulator with Lower RESET Threshold
제조업체 Cherry Semiconductor Corporation
로고 Cherry Semiconductor Corporation 로고


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CS8129YDW16 데이터시트, 핀배열, 회로
CS8129
5V, 750mA Low Dropout Linear
Regulator with Lower RESET Threshold
Description
The CS8129 is a precision 5V linear reg-
ulator capable of sourcing 750mA.
The RESET threshold voltage has been
lowered to 4.2V so that the regulator
can be used with 4V microprocessors.
The lower RESET threshold also per-
mits operation under low battery condi-
tions (5.5V plus a diode). The RESET Õs
delay time is externally programmed
using a discrete RC network. During
power up, or when the output goes out
of regulation, RESET remains in the
low state for the duration of the delay.
This function is independent of the
input voltage and will function correct-
ly as long as the output voltage remains
at or above 1V. Hysteresis is included in
the Delay and the RESET comparators
to improve noise immunity. A latching
discharge circuit is used to discharge
the delay capacitor when it is triggered
by a brief fault condition.
The regulator is protected against a
variety of fault conditions: i.e. reverse
battery, overvoltage, short circuit and
thermal runaway conditions. The regu-
lator is protected against voltage tran-
sients ranging from -50V to +40V. Short
circuit current is limited to 1.2A (typ).
The CS8129 is packaged in a 5 lead
TOÐ220 and a 16 lead surface mount
package.
Block Diagram
Features
s 5V +/- 3% Regulated
Output
s Low Dropout Voltage
(0.6V @ 0.5A)
s 750mA Output Current
Capability
s Reduced RESET Threshold
for use with 4V Micro-
processors
s Externally Programmed
RESET Delay
s Fault Protection
Reverse Battery
60V, -50V Peak Transient
Voltage
Short Circuit
Thermal Shutdown
Over Voltage
Shutdown
Delay
Pre- Regulated Supply
Regulator for Circuit Bias
Bandgap
Reference
Charge
Current
Generator
Thermal
Shutdown
Latching Discharge
QS
R
-
+
Error
Amplifier
Anti-Saturation
and
Current Limit
VIN
VOUT
VOUTSENSE
Package Options
16 Lead SOIC Wide
VIN 1
NC
NC
Gnd
Gnd
RESET
NC
Delay
VOUT
NC
VOUT(SENSE)
Gnd
Gnd
Gnd
NC
NC
5 Lead TO-220
Gnd
VDISCHARGE
Rev. 3/31/99
+ Delay Comparator
-
RESET
1
1 VIN
2 RESET
3 Gnd
4 Delay
5 VOUT
1
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Web Site: www.cherry-semi.com
A ¨ Company




CS8129YDW16 pdf, 반도체, 판매, 대치품
Typical Performance Characteristics Continued
Dropout Voltage vs. Output Current
Quiescent Current vs. Output Current
900
800
700
600
500
400
300
200
100
0
0
125ûC
-40ûC
25ûC
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0
VIN = 14V
125ûC
25ûC
-40ûC
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
Ripple Rejection
IOUT= 250mA
90
80 COUT= 10mF, ESR = 1 & 0.1mF,
70 ESR = 0
60
50
40
COUT= 10mF, ESR = 1W
30
20
COUT= 10mF, ESR = 10W
10
0
100 101 102 103 104 105 106 107 108
FREQUENCY (Hz)
103
102
101
100
10-1
10-2
10-3
10-4
100
Output Capacitor ESR
COUT= 47/68mF
Stable Region
COUT= 47mF
COUT= 68mF
101 102
Output Current (mA)
103
CIN*
100nF
Delay
0.1mF
Test & Application Circuit
VIN VOUT
CS8129
Delay Gnd RESET
RRST
4.7kW
*CIN required if regulator is far from the power source filter.
**COUT required for stability.
4
COUT**
10mF to 100mF

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CS8129YDW16 전자부품, 판매, 대치품
Application Notes: continued
Heat Sinks
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed
to determine the value of RQJA.
RQJA = RQJC + RQCS + RQSA
(3)
where
RQJC = the junctionÐtoÐcase thermal resistance,
RQCS = the caseÐtoÐheatsink thermal resistance, and
RQSA = the heatsinkÐtoÐambient thermal resistance.
RQJC appears in the package section of the data sheet. Like
RQJA, it too is a function of package type. RQCS and RQSA
are functions of the package type, heatsink and the inter-
face between them. These values appear in heat sink data
sheets of heat sink manufacturers.
7

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관련 데이터시트

부품번호상세설명 및 기능제조사
CS8129YDW16

5V/ 750mA Low Dropout Linear Regulator with Lower RESET Threshold

Cherry Semiconductor Corporation
Cherry Semiconductor Corporation

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