TK75005MCTL Ver la hoja de datos (PDF) - Toko America Inc

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TK75005MCTL

LOW-COST FLEXIBLE PWM CONTROLLER

Toko America Inc  

TK75005

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (Low Impedance) ............................ 18 V

Supply Voltage (ICC < 30 mA) ...................... Self Limiting

Power Dissipation (Note 1) ................................ 800 mW

Output Energy ........................................................... 5 µJ

CT and FB Pins ........................................................ 10 V

Junction Temperature ........................................... 150 °C

Storage Temperature Range ................... -55 to +150 °C

Operating Temperature Range ...................-20 to +80 °C

Extended Temperature Range ................... -40 to +85 °C

Lead Soldering Temperature (10 s) ...................... 235 °C

TK75005 ELECTRICAL CHARACTERISTICS

Test Conditions: VCC = 13 V, CCC = 4.7 µF, CT = 680 pF, CDRV = 1000 pF, TA = Tj = Full Operating Temperature Range,

unless otherwise specified.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN TYP MAX UNITS

ICC(START) Start-up Supply Current

Current Source to VIN Pin

0.25 0.9 mA

ICC(ON)

Operating Supply Current

EAIN = 2 V

EAIN = 3 V

12 17 mA

14.5 19.0 mA

VCC(ON)

UVLO Voltage ON

VCC Sweeps Upward

9

10 11

V

VCC(OFF) UVLO Voltage OFF

VCC Sweeps Downward

7

8

9

V

VHYST

UVLO Hysteresis

1 2.0

V

OSCILLATOR SECTION (CT PIN)

TA = Tj = 25 ° C

fDRV

Frequency at DRV Pin (Note 3)

TA = Tj = Full Range

90 100 110 kHz

85

115 kHz

VCT(PK)

Peak Voltage

2.5 3.2 3.9

V

VCT(VL)

Valley Voltage

1.1

V

ICT(DIS)

Discharge Current

VCT = VCT(PK)

1.0 1.8 3.0 mA

CT(MAX)

Maximum Timing Capacitance

4.7

nF

CURRENT DETECTOR, OVERVOLTAGE PROTECTION (OVP PIN) AND SLOPE COMPENSATION SECTIONS

VCCD

tCCD

VOVD

tOVP

iSC(PK)

i

SC(VL)

iSC(PK-VL)

Current Control Detector

Reference Voltage

Propogation Delay to DRV Pin

Overvoltage Protection

Detector Reference Voltage

Propogation Delay to DRV Pin

Slope Compensation Peak

Current

Slope Compensation Valley

Current

Slope Compensation Peak to

Valley

TA = Tj = 25 ° C

TA = Tj = Full Range

VFB steps from 0 to 2 V

TA = Tj = 25 ° C

TA = Tj = Full Range

VOVP steps from 2 to 3 V

CT Pin = VCT(PK), TA = Tj = 25 ° C,

EAOUT(HIGH) ,(Note 2)

CT Pin = VCT(VL), TA = Tj = 25 ° C,

EAOUT(HIGH) ,(Note 2)

CT Pin = VCT(PK), TA = Tj = 25 ° C,

EAOUT(HIGH) ,(Note 2)

0.99 1.02 1.05 V

0.966

1.077 V

80 180 ns

2.51 2.60 2.69 V

2.46

2.74 V

80 180 ns

-250 -205 -160 µA

-55 -30 -5 µA

-215 -175 -135 µA

Page 2

January 1999 TOKO, Inc.

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