TS103

Dual Operational Amplifiers And

Voltage Reference

1/6

Version: C12

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.

Recommended Operating Conditions

Parameter

Min.

Max.

Unit

Supply Voltage

3

18

V

Ambient Temperature

-40

85

°C

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

Block Diagram

Ordering Information

Part No.

Package

Packing

TS103CS RLG

SOP-8

2.5Kpcs / 13” Reel

TS103ACS RLG

SOP-8

2.5Kpcs / 13” Reel

Note: “G” denote for Halogen Free Product

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 (+)