UCD3138RHAR datasheet(17/68 Pages) TI1

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UCD3138

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SLUSAP2 A – MARCH 2012 – REVISED MARCH 2012

ELECTRICAL CHARACTERISTICS (continued)

V33A = V33D = V33DIO = 3.3V; 1

μF from VREG to DGND, TJ = –40°C to 125°C (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

DIGITAL INPUTS/OUTPUTS(2)(3)

DGND +

VOL

Low-level output voltage(4)

IOH = 6 mA, V33DIO = 3 V

0.25

V33DIO

VOH

High-level output voltage (4)

IOH = –6 mA, V33DIO = 3 V

– 0.6

VIH

High-level input voltage

V33DIO = 3 V

2.1

VIL

Low-level input voltage

V33DIO = 3 V

1.1

IOH

Output sinking current

IOL

Output sourcing current

-4

SYSTEM PERFORMANCE

Time to disable DPWM output based on

High level on FAULT pin

active FAULT pin signal

Processor master clock (MCLK)

31.25

MHz

tDelay

Digital compensator delay(5)

(1 clock = 32ns)

clocks

VDD

Slew minimum VDD slew rate

VDD slew rate between 2.3 V and 2.9 V

0.25

V/ms

t(reset)

Pulse width needed at reset

µs

Retention period of flash content (data

TJ = 25°C

100

years

retention and program)

Program time to erase one page in data

TJ = 25°C

flash or program flash

Program time to write one word n data

TJ = 25°C

µs

flash or program flash

f(PCLK)

Internal oscillator frequency

240

250

260

MHz

Sync-in/sync-out pulse width

256

Flash Read

MCLKs

Flash Write

μs

Block Erase

ISHARE

Current share current source

238

259

μA

RSHARE

Current share resistor

9.75

10.3

POWER ON RESET AND BROWN OUT

VGH

Voltage good High

2.7

VGL

Voltage good Low

2.5

Vres

Voltage at which IReset signal is valid

0.8

Time delay after Power is good or

TPOR

RESET* relinquished

Internal signal warning of brownout

Brownout

2.9

conditions

TEMPERATURE SENSOR(6)

VTEMP

Voltage range of sensor

1.46

2.44

Voltage resolution

Volts/°C

5.9

mV/ºC

Temperature resolution

Degree C per bit

0.7

ºC/LSB

Accuracy(6)(7)

-40°C to 125°C

-10

±5

ºC

Temperature range

-40°C to 125°C

–40

125

ºC

(2)

DPWM outputs are low after reset. Other GPIO pins are configured as inputs after reset.

(3)

On the 40 pin package V33DIO is connected to V33D internally.

(4)

The maximum total current, IOHmax and IOLmax for all outputs combined, should not exceed 12 mA to hold the maximum voltage drop

specified. Maximum sink current per pin = –6 mA at VOL; maximum source current per pin = 6 mA at VOH.

(5)

Time from close of error ADC sample window to time when digitally calculated control effort (duty cycle) is available. This delay must be

accounted for when calculating the system dynamic response.

(6)

Characterized by design and not production tested.

(7)

Ambient temperature offset value should be used from the TEMPSENCTRL register to meet accuracy.

Electrical Specifications

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