L9800 datasheet(25/55 Pages) STMICROELECTRONICS

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6.2

Electrical parameters

3 V < VBATT < 18 V, 3 V < VDDIO < 5.5 V, TJ = -40 °C to 150 °C, unless otherwise noticed.

Table 11. Power supply

Symbol

Description

Comment

Min. Nom.

Max.

Unit

VBATT pin

VBATT(UV_L)

Analog supply

undervoltage low

threshold

2.65

2.8

VBATT(UV_H)

Analog supply

undervoltage high

threshold

2.7

2.85

3.1

dVBATT/dtpwrup

Battery slew rate during

power-up (VBATT from

10% to 90%)

0.5

V/min

dVBATT/dtpwrup

Battery slew rate during

power-up (VBATT from

10% to 90%)

V/μs

IVBATT(SLEEP)

Current consumption

from VBATT in sleep

mode

VIDLE = 0 V, VINn = 0 V,

VDDIO = 5 V, TJ ≤ 85 °C

µA

VIDLE =0 V, VINn = 0 V,

VDDIO = 5 V, 85 °C ≤ TJ ≤ 150 °C

µA

IVBATT(IDLE)

Analog supply current

consumption in idle

mode

VIDLE = 5 V, VINn = 0 V,

VDDIO = 5 V, fSCLK = 0 MHz,

CFG_1.ACT = 0B,

PWM_SPI.OUTn = 0B,

DIAG_OFF_EN.OUTn = 0B

2.2

IVBATT(IDLE) T

J high

Analog supply current

consumption in idle

mode for TJ high

VIDLE = 5 V, VINn = 0 V,

VDDIO = 5 V, fSCLK = 0 MHz,

CFG_1.ACT = 0B,

PWM_SPI.OUTn = 0B,

DIAG_OFF_EN.OUTn = 0B, TJ > 100 °C

2.3

IVBATT(IDLE_COR)

Analog supply current

consumption in idle

mode from VBATT pin

when VBATT is lower

than VDDIO (the device

is supplied by VDDIO)

VIDLE = 5V, VINn = 0 V,

VDDIO = 5 V, fSCLK = 0 MHz,

CFG_1.ACT = 0B,

PWM_SPI.OUTn = 0B,

DIAG_OFF_EN.OUTn = 0B,

VBATT = VDDIO-1 V

-0.1

0.1

IVBATT(ACTIVE)

Analog supply current

consumption in active

mode - channels OFF

VIDLE = 5 V, VINn = 0 V,

VDDIO = 5 V, fSCLK = 0 MHz,

CFG_1.ACT = 1B,

PWM_SPI.OUTn = 0B,

DIAG_OFF_EN.OUTn = 0B

4.3

L9800

Power supply

DS14041 - Rev 2

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