L9915B Datasheet L9915B | P7-P9

DocID027541 Rev 1 7/20

L9915B Pin description

2 Pin description

Figure 2. Pin connection (top view)

Table 2. Pin description

N° Pin Function

1 PH Phase sense input

2 XX Reserved pin (to be connected to GND)

3 C C-Terminal (PWM signal input coming from ECU)

4 FM Field Monitor (PWM signal going to ECU)

5 GND Regulator ground

6 F High side driver output to control the Field current

7 L Key sensing and Warning Lamp terminal output

8 B Device power supply and Battery voltage sensing

















'.$

'!0'03

Electrical specification L9915B

8/20 DocID027541 Rev 1

3 Electrical specification

3.1 Absolute maximum ratings

= -40 to 150 °C, unless otherwise specified.

3.2 Thermal data

Table 3. Absolute maximum ratings

Symbol Parameter Value Unit

MAX

Transient supply voltage with 1 A and t < 1 ms 55 V

MAX

Transient supply voltage (low energy spikes) ISO7637-1 pulse 1,2,3

/ISO7637-3

55 V

Junction temperature range -40 to 150 °C

stg

case

Storage and case temperature range -40 to 150 °C

TOT

Total power dissipation (@ T

case

= 150 °C, I

field

= 5 A) 4 W

Reverse battery voltage @ 25 °C, T = 15 s -2.5 V

VPH

min

Normal working condition reverse voltage (PH vs. GND) -1.5 V

Bond

DC pin current on F, B, GND (bonding limitation) 15 A

ESD

HBM

ESD HBM (All pins vs.GND) ±4 kV

Table 4. Absolute maximum ratings and operative range by pin

Pin # Pin name

Absolute max. rating Operative range

Unit

Min. Max. Min. Max.

1 PH -15 50 -1.5 20 V

2 XX -0.3 7 must be connected to GND V

3 C -0.3 50 -0.3 18 V

4 FM -15 50 -0.3 18 V

5GND-----

6 F -1.5 B -1.5 B V

7 L -0.3 50 -0.3 18 V

8 B -2.5 50 6 18 V

Table 5. Thermal data

Symbol Parameter Test condition Min Typ Max Unit

th_j-case

Thermal resistance

junction-to-case

Related to MW8 - - 1.5 °C/W

j-sd

Thermal shutdown

threshold

Temperature to disable F, FM, L

drivers.

160 175 190 °C

j-sdhy

Thermal shut-down

hysteresis

L, F, FM from OFF STATE (due to

thermal shutdown) to ON STATE

Tj-sd

-10

Tj-sd

-2

°C

DocID027541 Rev 1 9/20

L9915B 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

OVR

Operating voltage range - 6 - 18 V

stby

Standby current

consumption

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

C pin floating; T = -40 °C

250 - 350 μA

stby

Standby current

consumption

200 - 300 μA

stby

Standby current

consumption

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

C pin floating; T = 130 °C

150 - 250 μA

ISP

Internal mode set-point

voltage

VPH = 10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C floating @ T

= 30 °C

F duty cycle = 15%

14.37 14.55 14.73 V

ITD

Internal thermal drift - -5 -7 -9 mV/°C

ESP

External mode

set-point voltage

VPH = 10 Vpp square wave; L pin

connected to B pin with 100 Ω;

C 73% PWM duty cycle @

= 30 °C; F duty cycle = 15%

14.37 14.55 14.73 V

ESP10

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 @

= 30°C; F duty cycle = 15 %

11.5 11.7 11.9 V

ESP90

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 @

= 30 °C; F duty cycle = 15 %

15.1 15.3 15.5 V

ETD

External thermal drift - -1 0 1 mV/°C

DESP

Default external mode

set-point voltage

VPH=10Vpp square wave; L pin

connected to B pin with 100 Ω;

C <2% or >98% PWM duty cycle

@ T

= 30 °C; F duty cycle = 15 %

14.37 14.55 14.73 V

DETD

Default external thermal drift - -1 0 1 mV/°C

ΔVB

load

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 mV

Regulation without battery N. A. 10 - 16 V

IntOvp

Internal mode over-voltage

protections threshold

Without ECU communication 15.5 16.2 16.9 V

ExtOvp

External mode over-voltage

protections threshold

With ECU communication 16.5 17.2 17.9 V

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P20

L9915B

Mfr. #:

Buy L9915B

Manufacturer:

STMicroelectronics

Description:

Power Management Specialized - PMIC C-terminal alternator voltage regulator (CTAVR)

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

L9915B