TB62D901FNG 데이터시트 PDF

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TOSHIBA BiCD Integrated Circuit Silicon Monolithic

TB62D901FNG

TB62D901FNG

AC/DC Step-Down Conversion Type LED Lighting Driver

1. General

The TB62D901FNG is a constant current driver IC ideal for

use in the step-down AC/DC conversion type LED lighting

applications.

The TB62D901FNG features architecture with automatic Off

time adjustment control that can be used to achieve minimum

LED current variations by the effect of fluctuated input voltage

or change of LED forward voltage.

The device allows linear dimming or PWM dimming. It has

extensive detection functions that are thermal shutdown,

over-current detection, over-voltage detection, under-voltage

lockout, and current sensing input terminal (ISEN1) open

detection.

2. Application

LED lighting

TB62D901FNG

SSOP16-P-225-0.65B

Weight: 0.07 g (typ.)

3. Features

• Operating supply voltage

• Dimming function

• Switching frequency

• Operation mode

• Efficiency

• Detection function

• IC standby function

• Operating temperature

• Package

: 12V to 30V

: Linear dimming (by adjustment of LED peak current)

PWM dimming

: Adjustable of up to 500kHz (MAX)

: Current continuous conduction mode

(Automatic OFF time control mode, Fixed off time mode)

Critical conduction mode

: 90% or more with recommended components

: Thermal shutdown (TSD)

: Over-current detection (OCP)

: Over-voltage detection (OVP)

: Under-voltage lockout (UVLO)

: ISEN terminal open detection (IOP)

: EN signal allows standby mode with 0.8mA (MAX) consumption

current

: Topr = −40 °C to 105 °C

: SSOP16-P-225-0.65B

1 2012-03-12

7. I/O Equivalent Circuits

Pin Pin

No Name

Equivalent circuit

1 VCC

2 VREG

3 MS

TB62D901FNG

Pin Pin

No Name

Equivalent circuit

8 GND

13

PGND

PGND

GND

ISEN2

16 ISEN2

VREG VCC

5 LD

12 VSEN

6 RC

4 PWMD

7 EN

14 ISEN1

15 GATE

VCC

PGND PGND

4 2012-03-12

11. Description of Operation

11.1 Standard connection diagram

FUSE

TB62D901FNG

PWM input

TB62D901FNG

VREG

VSEN

EN VCC

PWMD

LD

RC

MS

GND PGND

GATE

ISEN1

ISEN2

7 2012-03-12

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