FS6500 datasheet(14/153 Pages) NXP

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NXP Semiconductors

FS6500-FS4500-ASILD

Safety power system basis chip with CAN FD and LIN transceivers

TA = –40 °C to 125 °C, unless otherwise specified. VSUP = VSUP_UV_L to 36 V, unless otherwise specified. All voltages referenced to ground.

When 28 V < VSUP < 36 V, thermal dissipation must be considered (see Figure 32).

Symbol

Parameter

Min.

Typ.

Max.

Unit

Notes

VPRE voltage pre-regulator

VPRE output voltage

• Buck mode (VSUP > VSUP_UV_7)

6.25

—

6.75

• Buck mode (VSUP_UV_7 ≥ VSUP ≥ 4.5 V)

VPRE_

UV_4P3

VSUP –

RDS(on)_

PRE * IPRE

—

VPRE

• Boost mode (VSUP ≥ 2.7 V)

6.0

—

7.0

VPRE maximum output current capability

[4]

• Buck or boost with VSUP > VSUP_UV_7

2.0

—

• Buck with VSUP_UV_7 ≥ VSUP ≥ 4.5 V

0.5

2.0

—

• Boost with VSUP_UV_7 ≥ VSUP ≥ 6.0 V

2.0

—

• Boost with 6.0 V ≥ VSUP ≥ 4.0 V

1.0

—

IPRE

• Boost with 4.0 V ≥ VSUP ≥ 2.7 V

0.3

—

IPRE_LIM1

SW_PRE output current limitation in buck–boost mode (VSUP ≤

28 V)

3.5

—

IPRE_LIM2

SW_PRE output current limitation in buck mode (VSUP ≤ 28 V)

2.5

—

IPRE_OC

SW_PRE overcurrent detection threshold in buck mode (VSUP

≤ 28 V)

4.5

—

VPRE_UV

VPRE undervoltage detection threshold (falling)

5.5

—

6.0

VPRE_UV_HYST

VPRE undervoltage hysteresis

0.05

—

0.15

[5]

VPRE_UV_4P3

VPRE shut-off threshold (falling – buck and buck/boost)

4.1

—

4.5

VPRE_UV_4P3_

HYST

VPRE shut-off hysteresis

0.05

—

0.15

[5]

RDSON_PRE

VPRE pass transistor on resistance with VSUP ≤ 28 V

—

200

mΩ

LIR_VPRE

VPRE line regulation

—

[5]

LORVPRE_BUCK

VPRE load regulation for COUT_VPRE = 57 µF

• IPRE from 50 mA to 2.0 A - buck mode

—

100

—

[5]

LORVPRE_BOOST VPRE load regulation for COUT_VPRE = 57 µF

• IPRE from 50 mA to 2.0 A - boost mode

—

500

—

[5]

VPRE_LL_H

VPRE_LL_L

VPRE pulse skipping thresholds

—

200

180

—

TWARN_PRE

VPRE thermal warning threshold

—

125

—

°C

TSD_PRE

VPRE thermal shutdown threshold

160

—

°C

TSD_PRE_HYST

VPRE thermal shutdown hysteresis

—

°C

[5]

VG_LS_OH

LS gate driver high output voltage (IOUT = 50 mA)

VPRE – 1

—

VPRE

VG_LS_OL

LS gate driver low level (IOUT = 50 mA)

—

0.5

IG_LS

LS gate driver current capability

—

300

—

RG_SHORT

GATE_LS pin short to GND resistance to detect buck mode

only

—

Table 5. Static electrical characteristics ...continued

FS6500-FS4500-ASILD

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

Product data sheet

Rev. 8 — 5 August 2024

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