CS8361 Cherry Semiconductor Corporation, CS8361 Datasheet

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CS8361

Manufacturer Part Number
CS8361
Description
5V Dual Micropower Low Dropout Regulator with ENABLE and RESET
Manufacturer
Cherry Semiconductor Corporation
Datasheet

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Rev. 5/4/99
The CS8361 is a precision micro-
power dual voltage regulator with
The 5V standby output is accurate
within ±2% while supplying loads
of 100mA and has a typical
dropout voltage of 400mV.
Quiescent current is low, typically
140µA with a 300µA load. The
active
5V standby output and holds
the
up and regulator dropout condi-
tions. The
hysteresis and is guaranteed to
operate correctly with 1V on the
standby output.
ENABLE
ENABLE
* Consult factory for positive ENABLE option.
RESET
Gnd
V
Regulator with ENABLE and RESET
IN
RESET
5V Dual Micropower Low Dropout
and
RESET
line low during power-
V
Overvoltage
Shutdown
IN
Shutdown
Thermal
output monitors the
RESET
OVSD
circuit includes
.
+
TSD
Description
Block Diagram
RESET
Current
TSD
Limit
BG
+
OVSD
The second output tracks the 5V
standby output through an external
adjust lead, and can supply loads
of 250mA with a typical dropout
voltage of 400mV. The logic level
this tracking regulator output.
Both outputs are protected against
overvoltage, short circuit, reverse
battery and overtemperature condi-
tions. The robustness and low qui-
escent current of the CS8361 makes
it not only well suited for automo-
tive microprocessor applications,
but for any battery powered micro-
processor applications.
ENABLE
+
BG
Bandgap
CS8361
Current
TSD
Limit
BG
lead is used to control
+
OVSD
V
STANDBY
RESET
1
V
5V,100mA,2%
V
250mA
Adj
RESET
STBY
TRK
2000 South County Trail, East Greenwich, RI 02818
Also available in 20 Lead SOIC Wide.
Consult factory for 20 Lead PSOP .
Tel: (401)885-3600 Fax: (401)885-5786
Cherry Semiconductor Corporation
7L TO-220
16 Lead PDIP & SOIC Wide
Web Site: www.cherry-semi.com
1
Email: info@cherry-semi.com
2 Regulated Outputs
Low Dropout Voltage
RESET Option
ENABLE Option
Low Quiescent Current
Protection Features
Independent Thermal
Short Circuit
60V Load Dump
Reverse Battery
ENABLE
Package Options
(internally fused leads)
V
Gnd
Gnd
Standby Output 5V
Tracking Output 5V;
(0.4V at rated current)
Shutdown
TRK
V
NC
Adj
NC
IN
Features
±2%; 100mA
250mA
1
A
1. V
2. V
3. V
4. Gnd
5. Adj
6. ENABLE
7. RESET
STBY
IN
TRK
7L D
1
V
NC
NC
Gnd
Gnd
NC
NC
RESET
STBY
®
2
PAK
Company

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CS8361 Summary of contents

Page 1

... Dual Micropower Low Dropout Regulator with ENABLE and RESET Description The CS8361 is a precision micro- power dual voltage regulator with ENABLE RESET and . The 5V standby output is accurate within ±2% while supplying loads of 100mA and has a typical dropout voltage of 400mV. Quiescent current is low, typically 140µ ...

Page 2

Supply Voltage, V .....................................................................................................................................................-16V to 26V IN Positive Transient Input Voltage, tr > 1ms.............................................................................................................................60V Negative Transient Input Voltage, T < 100ms, 1% Duty Cycle..........................................................................................-50V Input Voltage Range ( ENABLE , Junction Temperature...........................................................................................................................................-40¡C to +150¡C Storage Temperature Range ................................................................................................................................-55¡C to +150¡C ...

Page 3

Electrical Characteristics: PARAMETER RESET ENABLE Functions ENABLE Input Threshold ENABLE Input Bias Current RESET Threshold High ( RESET Hysteresis RESET Threshold Low ( RESET Leakage Output Voltage Low ( 10k½ RLO RST Low ...

Page 4

... External Capacitors Output capacitors for the CS8361 are required for stability. Without them, the regulator outputs will oscillate. Actual size and type may vary depending upon the application load and temperature range. Capacitor effective series resistance (ESR) is also a factor in the IC stability ...

Page 5

... RESET ENABLE R2 Adj R1 V TRK C3 R1/R2) TRK STBY ~ 8V, R1/R2 ~ 0.6 TRK V STBY R1 CS8361 RESET ENABLE Adj V TRK C3 the junctionÐtoÐcase thermal resistance, = the caseÐtoÐheat sink thermal resistance, and = the heat sinkÐtoÐambient thermal resistance. 5V, 100mA ESR<8 ...

Page 6

... CS8361YDPS7 7L D PAK short-leaded 2 CS8361YDPSR7 7L D PAK short-leaded, (tape & reel) CS8361YT7 7L TO-220 (Straight) CS8361YDWF16 16L SO Wide* CS8361YDWFR16 16L SO Wide*, (tape & reel) CS8361YN16 16L PDIP CS8361YDW20 20L SO Wide* CS8361YDWR20 20L SO Wide*, (tape & reel) Rev. 5/4/99 Package Specification D Thermal Data English ...

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