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CS8122YT5 PDF даташит

Спецификация CS8122YT5 изготовлена ​​​​«Cherry Semiconductor Corporation» и имеет функцию, называемую «2% 5V/ 750mA Low Dropout Linear Regulator with Delayed RESET».

Детали детали

Номер произв CS8122YT5
Описание 2% 5V/ 750mA Low Dropout Linear Regulator with Delayed RESET
Производители Cherry Semiconductor Corporation
логотип Cherry Semiconductor Corporation логотип 

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CS8122YT5 Даташит, Описание, Даташиты
CS8122
2% 5V, 750mA Low Dropout Linear
Regulator with Delayed RESET
Description
The CS8122 is a precision 5V linear reg-
ulator capable of sourcing in excess of
750mA. The RESETÕs delay time is
externally programmed using a discrete
RC network. During power up, or when
the output goes out of regulation, the
RESET lead remains in the low state
for the duration of the delay. This func-
tion is independent of the input voltage
and will function correctly 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 CS8122 is an improved replacement
for the CS8126 and features a tighter tol-
erance on its output voltage (2% vs 4%).
The CS8122 is packaged in a 5 lead
TOÐ220 with copper tab. The copper tab
can be connected to a heat sink if
necessary.
Features
s 5V +/- 2% Regulated
Output
s Low Dropout Voltage
(0.6V @ 0.5A)
s 750mA Output Current
Capability
s Externally Programmed
RESET Delay
s Fault Protection
Reverse Battery
60V Load Dump
-50V Reverse Transient
Short Circuit
Thermal Shutdown
Block Diagram
Over Voltage
Shutdown
Delay
Gnd
Pre-
Regulator
Regulated Supply
for Circuit Bias
Bandgap
Reference
Charge
Current
Generator
Thermal
Shutdown
Latching Discharge
QS
R
-
+
VDISC
Error Amplifier
Anti-Saturation
and
Current Limit
Delay Comparator
+
-
VIN
VOUT
VOUTSENSE
RESET
Package Options
5 Lead TO-220
1 VIN
2 VOUT
3 Gnd
4 Delay
5 RESET
1
Rev. 2/5/99
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
1 A ¨ Company









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CS8122YT5 Даташит, Описание, Даташиты
Absolute Maximum Ratings
Input Operating Range..................................................................................................................................................-0.5 to 26V
Power Dissipation.............................................................................................................................................Internally Limited
Transient Input Voltage .................................................................................................................................................-50V, 60V
Output Current .................................................................................................................................................Internally Limited
ESD Susceptibility (Human Body Model)..............................................................................................................................4kV
Junction Temperature .............................................................................................................................................-55¡C to 150¡C
Storage Temperature...............................................................................................................................................-55¡C to 150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only) .....................................................................................10 sec. max, 260¡C peak
Electrical Characteristics: -40ûC ² TA ² +125ûC, -40ûC ² TJ ² +150ûC, 6V ² VIN ² 26V, 5mA ² IOUT ² 500mA,
R RESET = 4.7k½ to VCC unless otherwise noted*
PARAMETER
s Output Stage (VOUT)
Output Voltage
Dropout Voltage
Supply Current
Line Regulation
Load Regulation
Ripple Rejection
Current Limit
Overvoltage Shutdown
Maximum Line Transient
Reverse Polarity Input
Voltage DC
Reverse Polarity Input
Voltage Transient
Thermal Shutdown
TEST CONDITIONS
MIN
IOUT = 500mA
IOUT ² 10mA
IOUT ² 100mA
IOUT ² 500mA
6V ² VIN ² 26V, IOUT = 50mA
50mA ² IOUT ² 500mA, VIN = 14V
f = 120Hz, VIN = 7 to 17V,
IOUT = 250mA
VOUT ² 5.5V
VOUT ³ -0.6V, 10½ Load
4.9
54
0.75
32
60
-15
1% Duty Cycle, T < 100ms,
10½ Load
Guaranteed by Design
-50
150
TYP
5.0
0.35
2
6
55
5
10
75
1.20
95
-30
-80
180
MAX
5.1
0.60
7
12
100
50
50
40
210
UNIT
V
V
mA
mV
mV
dB
A
V
V
V
V
¡C
s RESET and Delay Functions
Delay Charge Current
RESET Threshold
RESET Hysteresis
Delay Threshold
Delay Hysteresis
VDELAY = 2V
VOUT Increasing, VRT(ON)
VOUT Decreasing, VRT(OFF)
VRH = VRT(ON) - VRT(OFF)
Charge, VDC(HI)
Discharge, VDC(L)
5 10 15 µA
4.65
4.90
VOUT-0.01
V
4.50
4.70
VOUT-0.16
V
150 200
250 mV
3.25 3.50
2.85 3.10
3.75 V
3.35 V
200 400
800 mV
RESET Output Voltage Low
1V < VOUT < VRT(L), 3k½ to VOUT
0.1 0.4 V
RESET Output Leakage
VOUT > VRT(H)
Current
0
10 µA
Delay Capacitor
Discharge Voltage
Delay Time
Discharge Latched ÒONÓ,
VOUT > VRT
CDELAY = 0.1µF
0.2
16 32
0.5 V
48 ms
* To observe safe operating junction temperatures, low duty cycle pulse testing is used in tests where applicable.
Delay
Time
=
CDelay
x
VDelay
ICharge
Threshold
Charge
=
CDelay
x
3.5
x
105
(typ)
2









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CS8122YT5 Даташит, Описание, Даташиты
PACKAGE LEAD #
5Lead TO-220
1
2
3
4
5
Package Lead Description
LEAD SYMBOL
FUNCTION
VIN
VOUT
Gnd
Delay
RESET
Unregulated supply voltage to IC.
Regulated 5V output.
Ground connection.
Timing capacitor for RESET function.
CMOS/TTL compatible output lead. RESET goes low whenev-
er VOUT drops below 6% of it's regulated value.
Typical Performance Characteristics
Quiescent Current vs Input Voltage over Temperature
Quiescent Current vs Input Voltage over Load Resistance
55.0
50.0
Rload = 25W
45.0
40.0
35.0
30.0
25.0
125ûC
20.0
15.0
10.0
5.0
25ûC
-40ûC
0.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
VIN (V)
120.0
100.0
Room Temp.
Rload = 6.67W
80.0
60.0
40.0
Rload = 10W
20.0
Rload = 25W
Rload = NO LOAD
0.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
VIN (V)
Output Voltage vs Input Voltage over Temperature
Rload = 25W
5.5
5.0 Rload=25½
4.5
4.0
3.5
3.0
125ûC
2.5
2.0
1.5 25ûC
-40ûC
1.0
0.5
0.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
VIN (V)
3
VOUT vs. VIN over RLOAD
5.5
Room Temp.
5.0
4.5
4.0
3.5 Rload = 6.67W
3.0
2.5
2.0 Rload =
1.5 NO LOAD
1.0
0.5 Rload = 10W
0.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
VIN (V)










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