33797 datasheet(7/34 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33797

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

Table 3. Static Electrical Characteristics

Characteristics noted under conditions 4.75 V ≤ VDD ≤ 5.25 V; 7.0 V ≤ VVFIRE_XX ≤ 35 V; VVDIAG_X = VVFIRE_XX; FEN 1 = FEN 2

= VDD; RR_LIMIT_X = 10 kΩ ±1%, RR_DIAG = 10 kΩ ±1%, -40°C ≤ TA ≤ +85°C, GND = 0 unless otherwise noted. Typical values

noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

INPUT VOLTAGE (VDD)

Input Voltage

VDD

4.57

5.0

5.25

FET DRIVERS

Leakage Current at Minimum High Side Driver Breakdown Voltage

IDHSD

–

100

µA

Leakage Current at Minimum Low Side Driver Breakdown Voltage

IDLSD

–

100

µA

High-Side Driver Current Limit Range Set via Rlimit Resistor with Low

Battery Condition

tON ≤ 4.0 ms, RR_LIMIT_X = 10 kΩ, 5.0 V ≤ VVFIRE ≤ 7.0 V, RSQUIB =

2.0

Ω

IHS(LBAT)

1.09

1.4

2.9

High-Side Driver Low Current Limit Range Set via Rlimit Resistor

tON ≤ 2.6 ms, RR_LIMIT_X = RL=4.32 kΩ, 7.0 V ≤ VVFIRE ≤ 35 V

IHS(LOSET)

0.81

0.93

1.03

High-Side Driver Nominal Current Limit Range Set via Rlimit Resistor

tON ≤ 2.6 ms, RR_LIMIT_X = RL=10 kΩ, 7.0 V ≤ VVFIRE ≤ 35 V

IHS(NOM)

1.21

1.4

1.54

High-Side Driver High Current Limit Range Set via Rlimit Resistor

tON ≤ 0.8 ms, RR_LIMIT_X = RL=45.3 kΩ, 7.0 V ≤ VVFIRE ≤ 35 V

IHS(HISET)

1.76

2.0

2.24

Low-Side Drivers Current Limit

7.0 V

= SQLO < 16 V

SQLO = 16 V

ILS

2.1

2.24

2.47

2.65

3.0

3.14

High-Side Driver Current Limit Detect Threshold (7)

7.0 V

≤ V

VFIRE ≤ 35 V

IMEAS

IHS x 0.85

–

IHS x 1.0

Driver ON Resistance (per FET)

VVFIRE = 5.0 V, ILOAD = 0.5 A

RDS(ON)

–

1.0

Ω

VDD Operating Current

Standby (Diagnostics off, SPI “OFF”)

No Fire—Worst Case Diagnostics ($83/$2F Command Active)

Firing (with All FET Drivers “ON”)

IDD

–

2.0

4.3

5.0

17.5

6.0

VFIRE Quiescent Current (8)

With Diagnostics Off

IRRE

µA

VDIAG Current During Squib Diagnostics

With Squib Resistance Diagnostics Active

IRRE

VFIRE Operating Current During Firing

Excluding Firing Current, IHS = 2.0 A

IRRE

–

1.8

VDIAG Operating Current During Firing

Per VDIAG pin, excluding Firing Current, IHS = 2.0 A

IRRE

–

140

200

µA

Notes

Guaranteed by design

VFIRE quiescent current includes any leakage current through squib.

33797 Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc

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