LTM2883 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTM2883

SPI/Digital or I2C µModule Isolator with Adjustable ±12.5V and 5V Regulated Power

Linear Technology 

LTM2883

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. LTM2883-3 VCC = 3.3V, LTM2883-5 VCC = 5V, VL = 3.3V, and GND =

GND2 = 0V, ON = VL unless otherwise noted. Specifications apply to all options unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

Output Supplies

VCC2

Regulated Output Voltage

No Load

Output Voltage Operating Range (Note 2)

l 4.75

5

5.25

V

3

5.5

V

Line Regulation

Load Regulation

ILOAD = 1mA, MIN ≤ VCC ≤ MAX

ILOAD = 100µA to 20mA

l

25

100

mV

l

8

80

mV

ADJ Pin Voltage

ILOAD = 100µA to 20mA

l 585

600

615

mV

Voltage Ripple

Efficiency

ICC2

Output Short Circuit Current

Current Limit

V+

Regulated Output Voltage

ILOAD = 20mA (Note 2)

ILOAD = 20mA (Note 2)

VCC2 = 0V

ΔVCC2 = –5%

No Load

1

mVRMS

45

%

45

mA

l

20

mA

l

12

12.5

13

V

Line Regulation

ILOAD = 1mA, MIN ≤ VCC ≤ MAX

l

5

30

mV

Load Regulation

ILOAD = 100µA to 20mA

ADJ Pin Voltage

ILOAD = 100µA to 20mA

Voltage Ripple

ILOAD = 20mA (Note 2)

Efficiency

ILOAD = 20mA (Note 2)

I+

Output Short Circuit Current

V+ = 0V

l

l 1.170

1.220

3

45

70

200

1.260

mV

mV

mVRMS

%

mA

Current Limit

ΔV+ = –0.5V

l

20

mA

V–

Regulated Output Voltage

No Load

l –12

–12.5

–13

V

Line Regulation

Load Regulation

ADJ Pin Voltage

Voltage Ripple

ILOAD = –1mA, MIN ≤ VCC ≤ MAX

ILOAD = 100µA to 15mA

ILOAD = 100µA to 15mA, H-Grade

ILOAD = 100µA to 15mA

ILOAD = 15mA (Note 2)

l

l

l –1.184

4

35

–1.220

2

15

35

150

–1.256

mV

mV

mV

mV

mVRMS

Efficiency

ILOAD = 15mA (Note 2)

I–

Output Short-Circuit Current

V– = 0V

45

%

30

mA

Current Limit

ΔV– = 0.5V, V+ = 1.5mA

l

10

15

mA

Logic/SPI

VITH

Input Threshold Voltage

IINL

Input Current

VHYS

Input Hysteresis

VOH

Output High Voltage

VOL

Output Low Voltage

ISC

Short-Circuit Current

ON, DI1, SDOE, SCK, SDI, CS 1.62V ≤ VL < 2.35V

ON, DI1, SDOE, SCK, SDI, CS 2.35V ≤ VL

I1, I2, SDO2

l 0.25 • VL

l 0.33 • VL

l 0.33 • VCC2

l

0.75 • VL

V

0.67 • VL

V

0.67 • VCC2

V

±1

µA

(Note 2)

150

mV

DO1, DO2, SDO

ILOAD = –1mA, 1.62V ≤ VL < 3V

ILOAD = –4mA, 3V ≤ VL ≤ 5.5V

O1, SCK2, SDI2, CS2, ILOAD = –4mA

DO1, DO2, SDO

ILOAD = 1mA, 1.62V ≤ VL < 3V

ILOAD = 4mA, 3V ≤ VL ≤ 5.5V

O1, SCK2, SDI2, CS2, ILOAD = 4mA

0V ≤ (DO1, DO2, SDO) ≤ VL

0V ≤ (O1, SCK2, SDI2, CS2) ≤ VCC2

l VL – 0.4

l VCC2 – 0.4

l

V

V

0.4

V

l

0.4

V

l

±85

mA

±60

mA

2883f

4

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