ASL1507SHN datasheet(7/56 Pages) NXP

7 / 56 page

NXP Semiconductors

ASL1507SHN; ASL2507SHN

Single-phase and two-phase boost converter with limp-home mode

ASL1507_ASL2507

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1 — 26 April 2018

7 / 56

Symbol

ASL1507SHN

ASL2507SHN

Description

VCC

external 5 V supply

SDO

SPI data output

GND

chip ground

[1]

Not connected pins are internally not connected and can be left floating or can be connected to any voltage level.

[2]

See Figure 6 and Figure 19 for recommend connections for pin FB1 and FB2.

[3]

Internally connected pins should be connected to GND.

For enhanced thermal and electrical performance, the exposed center pad of the

package should be soldered to board ground (and not to any other voltage level).

8 Functional description

8.1 Operating modes

aaa-029673

limp-home

mode

fail silent

configuration

reset

initial state

any mode

operation

NVM access

standby

system error

LH_TIMER overrun

while

LIMP_DIS is logic 0

Vth(det)on

VBAT

CFG_DN is logic 0

while

AUTO is logic 1

CFG_DN

is logic 1

system

error

limp-home mode

exit sequence

system

error recovery

NVM mode

entry

NVM mode

exit

CFG_DN is logic 0

while

AUTO is logic 0

CFG_DN is logic 1

normal operation

EN = LOW

Vth(det)on

VBAT >

and

EN = HIGH

Remark: All outputs should be turned off at least 200 ns before the transition from operation to

off mode is executed.

Figure 5. State diagram

ASL1507SHN Datasheet(PDF) 7 Page - NXP Semiconductors

ASL1507SHN Datasheet(HTML) 7 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

Datasheet Download

Link URL