CAT102TDI-G ONSEMI [ON Semiconductor], CAT102TDI-G Datasheet

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CAT102TDI-G

Manufacturer Part Number
CAT102TDI-G
Description
Precision, Adjustable Shunt Regulator (600 mV Reference)
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
Precision, Adjustable Shunt Regulator
(600 mV Reference)
FEATURES
APPLICATION
FUNCTIONAL DIAGRAM
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
600 mV low voltage reference
±6 mV initial accuracy
High PSRR: 45 dB at 300 kHz
Better line regulation: 1 mV (V
Low supply current: 90 µA
Open drain output
Directly drives optocouplers
Industrial temperature range of -40ºC to 85ºC
RoHS-compliant 5-lead TSOT23 package
SMPS control loop
Low temperature coefficient voltage reference
Power management
Replaces zener diodes
Isolated DC-to-DC converters
Network, telecom and cellular base station
Adjustable voltage reference
FB
600mV
1
V
REF
Error
Amplifier
+
+
IN
5
IN
from 2.2 V to 18 V)
GND
OUT
2
3
1
DESCRIPTION
The CAT102 is a low-voltage reference and amplifier.
Designed for the control loop of low-voltage power
supplies, the reference voltage has been designed for
600 mV. Over a temperature from -40°C to 85°C, the
reference voltage is within 8 mV of the nominal
600mV. In addition, the error amplifier output and the
supply voltage pin (IN) are on separate pins.
Power supply rejection is a high 45 dB at 300 kHz.
The output, OUT, can sink 20 mA at a maximum
saturation voltage of 250 mV.
When combined with an optocoupler, the CAT102 can
be used as an error amplifier that controls the
feedback loop in isolated low-output voltage switching
power supplies.
PIN CONFIGURATION
PIN DESCRIPTION
For Ordering Information details, see page 7.
Pin Name
GND
OUT
NC
FB
IN
Function
Inverting input to error amplifier
Ground
Output of error amplifier. Source & sink
current capability is 20 mA.
No connection
Positive supply
GND
OUT
FB
TSOT-23 5L
1
2
4
Top View
1
2
3
5
4
8
5
IN
NC
Doc. No. MD-4007 Rev. P
CAT102

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CAT102TDI-G Summary of contents

Page 1

Precision, Adjustable Shunt Regulator (600 mV Reference) FEATURES 600 mV low voltage reference ±6 mV initial accuracy High PSRR 300 kHz Better line regulation Low supply current: 90 µA Open drain output Directly ...

Page 2

CAT102 ABSOLUTE MAXIMUM RATINGS Parameters V Voltage IN OUT Voltage FB Voltage V , OUT, FB Current IN Operating Junction Temperature (10 seconds) Lead Soldering Temperature (10 seconds) Storage Temperature Range ELECTRICAL CHARACTERISTICS Electrical characteristics are guaranteed over the full ...

Page 3

TYPICAL PERFORMANCE CHARACTERISTICS Line Regulation (at 1mA) 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0. Supply Voltage (V) Supply current vs. Input Voltage Input Voltage ...

Page 4

CAT102 APPLICATIONS INFORMATION The CAT102 adjustable shunt regulator features isolated supply inputs and outputs, ideal for isolated power-supply applications using an optocoupler in the feedback path. The CAT102 sinks 20 mA with V at 0.3 V. The wide input supply ...

Page 5

TYPICAL APPLICATION V > 2. CAT102 0.1µF 2 GND Figure 2. Opto-Feedback Application Circuit In order to allow proper operation of the optocoupler and the CAT102, the supply voltage V than 2.2 V. © 2009 ...

Page 6

CAT102 PACKAGE OUTLINE DRAWING (1) TSOT-23 5-Lead (TD TOP VIEW b SIDE VIEW Notes: (1) All dimensions in millimeters. Angles in degrees. (2) Complies with JEDEC standard MO-193. Doc. No. MD-4007 Rev. P SYMBOL MIN A A1 0.01 ...

Page 7

... Product Number 102 ORDERING PART NUMBER CAT102TDI-G Notes: (1) All packages are RoHS-compliant (Lead-free, Halogen-free) (2) The device used in the above example is a CAT102TDI-GT3 (TSOT-23, Industrial Temperature, NiPdAu, Tape & Reel, 3,000/Reel) © 2009 SCILLC. All rights reserved. Characteristics subject to change without notice ...

Page 8

CAT102 REVISION HISTORY Date Rev. Description 29-Jan-07 M Added Ordering Information Changed package from SOT-23 to TSOT-23 Updated Features Updated Functional Diagram 16-Jun-07 N Updated Electrical Characteristics Updated Typical Performance Characteristics Changed termination from SnPb to NiPdAu Added MD- to ...

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