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CS8129YTVA5G

P1-P3P4-P6P7-P8
© Semiconductor Components Industries, LLC, 2008
September, 2008 − Rev. 9
1 Publication Order Number:
CS8129/D
CS8129
5.0 V, 750 mA Low Dropout
Linear Regulator with
Lower RESET
Threshold
The CS8129 is a precision 5.0 V linear regulator capable of sourcing
750 mA. The RESET
threshold voltage has been lowered to 4.2 V so
that the regulator can be used with 4.0 V microprocessors. The lower
RESET
threshold also permits operation under low battery conditions
(5.5 V plus a diode). The RESET
’s delay time is externally
programmed using a discrete RC network. During powerup, 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 correctly as long as the output voltage
remains at or above 1.0 V. 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 regulator is protected against voltage transients ranging
from −50 V to +40 V. Short circuit current is limited to 1.2 A (typ).
The CS8129 is packaged in a 16 lead surface mount package.
Features
• 5.0 V ±3.0% Regulated Output
• Low Dropout Voltage (0.6 V @ 0.5 A)
• 750 mA Output Current Capability
• Reduced RESET Threshold for Use with 4.0 V Microprocessors
• Externally Programmed RESET Delay
• Fault Protection
− Reverse Battery
− 60 V, −50 V Peak Transient Voltage
− Short Circuit
− Thermal Shutdown
• These are Pb−Free Devices
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAM
SO−16WB
DW SUFFIX
CASE 751G
1
16
http://onsemi.com
A = Assembly Location
WL = Wafer Lot
YY, Y = Year
WW = Work Week
G = Pb−Free Package
1
16
CS8129
AWLYYWWG
Device Package Shipping
†
ORDERING INFORMATION
CS8129YDWR16G SO16WB
(Pb−Free)
1000/Tape & Reel
CS8129YDW16G SO16WB
(Pb−Free)
47 Units / Rail
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
CS8129
http://onsemi.com
2
PIN CONNECTIONS
NC
Delay
NCNC
GND
RESET
GND
GND
GND
GND
V
OUT(SENSE)
NC
NC
NC
V
OUT
V
IN
1
16
+
−
−
+
GND
RESET
V
OUT
Latching Discharge
V
DISCHARGE
Figure 1. Block Diagram
V
IN
Over Voltage
Shutdown
Thermal
Shutdown
Delay Com-
parator
−
+
Bandgap
Reference
Anti−Saturation
and
Current Limit
Regulated Supply
for Circuit Bias
Pre−Regulator
−
+
Charge
Current
Generator
Q
S
R
V
OUT
(SENSE)
Error
Amplifier
Delay
ABSOLUTE MAXIMUM RATINGS
Rating Value Unit
Input Operating Range −0.5 to 26 V
Power Dissipation Internally Limited −
Peak Transient Voltage (46 V Load Dump @ 14 V V
IN
) −50, 60 V
Output Current Internally Limited −
Electrostatic Discharge (Human Body Model) 4.0 kV
Junction Temperature −55 to +150 °C
Storage Temperature Range −55 to +150 °C
Lead Temperature Soldering: Wave Solder (through hole styles only) (Note 1)
Reflow (SMD styles only) (Note 2)
260 peak
230 peak
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. 10 second maximum.
2. 60 seconds max above 183°C.
CS8129
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (−40°C ≤ T
A
≤ 125°C, −40 ≤ T
J
≤ 150°C, 6.0 ≤ V
IN
≤ 26 V, 5.0 mA ≤ I
OUT
≤ 500 mA,
R
RESET
= 4.7 kW to V
OUT
unless otherwise noted.) (Note 3)
Characteristic
Test Conditions Min Typ Max Unit
OUTPUT STAGE (V
OUT)
Output Voltage − 4.85 5.0 5.15 V
Dropout Voltage I
OUT
= 500 mA − 0.35 0.60 V
Supply Current I
OUT
= 10 mA
I
OUT
= 100 mA
I
OUT
= 500 mA
−
−
−
2.0
6.0
55
7.0
12
100
mA
mA
mA
Line Regulation 6.0 V ≤ V
IN
≤ 26 V, I
OUT
= 50 mA − 5.0 50 mV
Load Regulation 50 mA ≤ I
OUT
≤ 500 mA, V
IN
= 14 V − 10 50 mV
Ripple Rejection f = 120 Hz, V
IN
= 7.0 to 17 V, I
OUT
= 250 mA 54 75 − dB
Current Limit − 0.75 1.20 − A
Overvoltage Shutdown − 32 − 40 V
Reverse Polarity Input Voltage DC
V
OUT
≥ −0.6 V, 10 W Load
−15 −30 − V
Thermal Shutdown Guaranteed by Design 150 180 210 °C
RESET AND DELAY FUNCTIONS
Delay Charge Current V
DELAY
= 2.0 V 5.0 10 15
mA
RESET Threshold V
OUT
Increasing, V
RT(ON)
V
OUT
Decreasing, V
RT(OFF)
4.05
4.00
4.35
4.20
4.50
4.45
V
V
RESET Hysteresis V
RH
= V
RT(ON)
− V
RT(OFF)
50 150 250 mV
Delay Threshold Charge, V
DC(HI)
Discharge, V
DC(LO)
3.25
2.85
3.50
3.10
3.75
3.35
V
V
Delay Hysteresis
−
200 400 800 mV
RESET Output Voltage Low
1.0 V < V
OUT
< V
RT(L)
, 3.0 kW to V
OUT
− 0.1 0.4 V
RESET Output Leakage V
OUT
> V
RT(H)
Current − 0 10
mA
Delay Capacitor Discharge Voltage Discharge Latched “ON”, V
OUT
> V
RT
− 0.2 0.5 V
Delay Time
C
DELAY
= 0.1 mF, (Note 4)
16 32 48 ms
3. To observe safe operating junction temperatures, low duty cycle pulse testing is used in tests where applicable.
4. Assuming ideal capacitor.
Delay Time +
C
Delay
V
Delay Threshold Charge
I
Charge
+ C
Delay
3.5 10
5
(typ)
PACKAGE LEAD DESCRIPTION
PACKAGE LEAD #
SO−16WB LEAD SYMBOL FUNCTION
1 V
IN
Unregulated supply voltage to IC.
16 V
OUT
Regulated 5.0 V output.
4, 5, 11, 12, 13 GND Ground Connection.
8 Delay Timing capacitor for RESET function.
6 RESET CMOS/TTL compatible output lead. RESET goes low whenever V
OUT
drops below 6.0% of
it’s regulated value.
14 V
OUT(SENSE)
Remote sensing of output voltage.
P1-P3P4-P6P7-P8

CS8129YTVA5G

Mfr. #:
Buy CS8129YTVA5G
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators 5V 750mA w/Delayed Reset
Lifecycle:
New from this manufacturer.
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