L9915 datasheet(9/21 Pages) STMICROELECTRONICS

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L9915

Electrical specification

3.3

Electrical characteristics

3.3.1

Pin “B”

Table 6. Electrical characteristics - Pin “B”

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

VBOVR

Operating voltage range

IBstby

Standby current

consumption

VB = 12.5 V; VPH = 0; VL = 0 V;

C pin floating; T = -40°C

250

350

μA

IBstby

Standby current

consumption

200

300

μA

IBstby

Standby current

consumption

VB = 12.5 V; VPH = 0; VL = 0 V;

C pin floating; T = 130 °C

150

250

μA

VBISP

Internal mode set-point

voltage

VPH = 10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C floating @ Tj = 30 °C

F duty cycle = 15%

14.37

14.55

14.73

VBITD

Internal thermal drift

-1.5

-3.5

-5.5

mV/°C

VBESP

External mode

set-point voltage

VPH = 10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C 73% PWM duty cycle @

Tj = 30 °C; F duty cycle = 15%

14.37

14.55

14.73

VBESP10

External mode

set-point voltage

(duty cycle on C = 10%)

VPH = 10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C 10 % PWM duty cycle @

Tj = 30°C; F duty cycle = 15 %

11.5

11.7

11.9

VBESP90

External mode

set-point voltage

(duty cycle on C = 90%)

VPH=10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C 90 % PWM duty cycle @

Tj = 30 °C; F duty cycle =15 %

15.1

15.3

15.5

VBETD

External thermal drift

-1

mV/°C

VBDESP,1

Default external mode

set-point voltage option1

VPH=10Vpp square wave; L pin

connected to B pin with 100 Ω;

C <2% or >98% PWM duty cycle

@ Tj = 30 °C; F duty cycle = 15 %

14.37

14.55

14.73

VBDETD Default external thermal drift -

-1

mV/°C

ΔVBload

Regulated voltage variation

with the load (for both

int./ext. regulation)

Difference between regulated

voltage when F duty cycle is 5%

and regulated voltage when F duty

cycle is 95%

300

VBwb

Regulation without battery

N. A.

VBIntOvp

Internal mode over-voltage

protections threshold

Without ECU communication

15.5

16.2

16.9

VBExtOvp

External mode over-voltage

protections threshold

With ECU communication

16.5

17.2

17.9

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