TS103/A

Dual Operational Amplifiers And

Voltage Reference

1/6

Version: B07

SOP-8

General Description

The TS103 is a monolithic IC specifically designed to control the output current and voltage levels of switch mode

battery chargers and power supplies.

The device contains two operational amplifiers and a precision shunt regulator. Op Amp 1 is designed for voltage

control, whose non-inverting input internally connects to the output of the shunt regulator. Op Amp 2 is for current

control with both inputs uncommitted. The IC offers the power converter designer a control solution that features

increased precision with a corresponding reduction in system complexity and cost.

Absolute Maximum Rating

Parameter

Symbol

Value

Unit

Power Supply Voltage (V

CC

to GND)

V

CC

20

V

Op Amp 1 and 2 Input Voltage Range (Pins 2,5,6)

V

IN

-0.3 to V

CC

+0.3

V

Op Amp 2 Input Differential Voltage (Pins 5,6)

V

ID

20

V

Voltage Reference Cathode Current (Pin 3)

I

K

100

mA

Power Dissipation

P

D

500

mW

Storage Temperature Range

T

STG

-65 to 150

°C

ESD Protection Voltage (Machine Model)

--

≥200

V

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings " may cause permanent damage to

the device. These are stress ratings only, and functional operation of the device at these or any other conditions

beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute

Maximum Ratings " for extended periods may affect device reliability.

Features

●

Input Offset Voltage: 0.5mV

●

Supply Current: 250uA per OP AMP @ 5V

●

Unity Gain Bandwidth: 1MHz

●

Output Voltage Swing: 0~(Vcc – 1.5) V

●

Power Supply Voltage: 3~18V

●

Fixed Output Voltage Reference: 2.5V±1%

●

Sink Current Capability from 0.2~80mA

●

Package types: SOP-8

Ordering Information

Part No.

Package

Packing

TS103CS RL

SOP-8

2.5Kpcs / 13” Reel

TS103ACS RL

SOP-8

2.5Kpcs / 13” Reel

Block Diagram

Pin assignment:

1. Output A

8. Vcc

2. Input A (-)

7. Output B

3. Input A (+) / Vka

6. Input B (-)

4. Gnd

5. Input B (+)