UCD3138ARMHT datasheet(14/83 Pages) TI

14 / 83 page

UCD3138A

SLUSC66B – MARCH 2015 – REVISED MAY 2015

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Electrical Characteristics (continued)

V33A = V33D = V33DIO = 3 V to 3.6 V; 1

μF from BP18 to DGND, TJ = –40°C to 125°C (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

ADC12 INL integral nonlinearity, end

–3.9

±2

4.5

LSB

point(2) (See Figure 5-3)

ADC12 INL integral nonlinearity, best fit(2)

–2.3

±1.5

2.6

LSB

ADC_SAMPLINGSEL = 0 to 6 for all

(See Figure 5-3)

ADC12 data

ADC12 DNL differential nonlinearity(2)

–0.8/+2.4

LSB

ADC Zero Scale Error

–7

ADC Full Scale Error

–35

Input bias

2.5 V applied to pin

400

Input leakage resistance(1)

ADC_SAMPLINGSEL= 0 or 6

Ω

Input Capacitance(1)

ADC single sample conversion time(1)

ADC_SAMPLINGSEL= 0 or 6

3.9

μs

DIGITAL INPUTS/OUTPUTS(3)(4)

DGND

VOL

Low-level output voltage(5)

IOH = 4 mA, V33DIO = 3 V

+ 0.25

V33DIO

VOH

High-level output voltage (5)

IOH = –4 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

Total time is: TWD ×

TWD

Watchdog time out range

14.6

20.5

(WDCTRL.PERIOD + 1)

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(6)

(1 clock = 32 ns)

clocks

t(reset)

Pulse width needed at reset(1)

µs

Retention period of flash content (data

TJ = 25°C

100

years

retention and program)

Program time to erase one page or block in

data flash or program flash

Program time to write one word in data

µs

flash or program flash

f(PCLK)

Internal oscillator frequency

240

250

260

MHz

Sync-in/sync-out pulse width

Sync pin

256

Flash Read

MCLKs

Flash Write

μs

Current share current source (See

ISHARE

238

259

μA

Figure 6-21)

RSHARE

Current share resistor (See Figure 6-21)

9.75

10.3

(2)

Minimum and maximum values are specified by design and characterization data.

(3)

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

(4)

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

(5)

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.

(6)

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

has no variation associated with it, must be accounted for when calculating the system dynamic response.

Specifications

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