L9680 datasheet(236/277 Pages) STMICROELECTRONICS

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Electrical characteristics

L9680

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DocID029257 Rev 1

16.8

ERBoost regulator

All electrical characteristics are valid for the following conditions unless otherwise noted:

-40 °C

 Ta  +95 °C, VINGOOD0  VIN  35 V.

Table 35. ERBoost regulator DC specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VO_ERBST

Boost output voltage

Across all line and IO_BST

load (steady state)

SYS_CTL(ER_BST_V)=0

22.6

23.8

Across all line and IO_BST

load (steady state)

1SYS_CTL(ER_BST_V)=1

31.65

3IO_ERBST

Boost output current

0.1

4dVSR_ac

Line transient response

All line, load; dt=100us;

BST33V = 0/1

Design Info

-8%

5dVLR_ac

Load transient response

All line, load; dt=100us;

BST33V = 0/1

Design Info

-8%

6RDSON_ERBST

Power switch resistance

7IOC_ERBST

Over current detection

650

1350

8IOC_ERBST_ERON

ER Switch activated AND

SW_REGS_CONF(LOW_E

RBST_ILIM_ERON) = 1

125

600

9ILKG_ERBST_OFF

ERBOOST input current

ERBOOST=40V

Power-off or Sleep Mode

-5

μA

ILKG_ERBST_ON

Active or Passive Mode

ERBoost reg. enabled

ERBSTSW > ERBoost >

VER

ER Charge OFF

VSF regulator OFF

Any GPO channel not

enabled

Guarantee by design

200

μA

11 ILKG_ERBST_ON_wGPO

Active or Passive Mode

ERBoost reg. enabled

ERBSTSW > ERBoost >

VER

ER Charge OFF

VSF regulator OFF

All GPO channel activated

1.5

2.4

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