UCC1890

UCC2890

UCC3890

Current into TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5mA

Current into TOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

µA

Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Junction Temperature . . . . . . . . . . . . . . . . . . –55°C to +150°C

Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C

CONNECTION DIAGRAMS

Currents are positive into, negative out of the specified terminal.

Consult Packaging Section of Databook for thermal limitations

and considerations of packages.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

General

VDD Zener Voltage

8.3

9.0

9.4

V

1.65

2.0

mA

Undervoltage Lockout

Minimum Voltage to Start

FB = 0

7.8

8.6

9.2

V

Minimum Voltage after Start

FB = 0

5.75

6.3

6.65

V

Hysteresis

FB = 0

1.8

2.3

2.6

V

FB = 0

0.2

0.4

0.7

V

Oscillator

Amplitude

3.1

3.4

3.7

V

CT to DRIVE High Delay

Overdrive = 200mV

80

200

ns

CT to DRIVE Low Delay

Overdrive = 200mV

50

100

ns

0.135

0.15

0.165

µA/µA

0.95

1.00

1.05

µA/µA

Driver

I = 100mA (Note 1)

0.7

1.8

V

I = –100mA referred to VDD (Note 1)

–2.9

–1.5

V

Rise Time

35

70

ns

Fall Time

30

60

ns

Line Voltage Detection

1.0

1.5

2.0

mA

110

µA

On Time During Fault

0.5

µs

Reference Level

1.20

1.25

1.30

V

1.15

1.25

1.35

V

Voltage at TOFF

µA

0.3

0.4

0.5

V

Regulation gm

µA (Note 2)

2.0

4.0

7.7

mA/V

Current Sense Amplifier

Gain

11.8

12.5

13.0

V/V

Input Offset Voltage

–5

0

5

mV

Input Voltage for CS Amplifier Enabled

–1.5

–0.8

V

Input Voltage for CS Amplifier Disabled

–0.8

–0.3

V

°C to 125°C for

DIL-8, SOIC-8 (Top View)

J, N, or D Packages

Note 1: VDD forced to 100mV below VDD Zener Voltage

Note 2: gm is defined as

2