L6520 datasheet(6/19 Pages) STMICROELECTRONICS

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Electrical characteristics

L6520, L6521

6/19

Doc ID 16998 Rev 3

Electrical characteristics (a)

VCC = 16 V, TA = -25 °C to 85 °C, unless otherwise specified

This is a preliminary version: all the parameters are subject to change

Table 5.

Electrical characteristics

Symbol

Parameter

Test condition

Min. Typ. Max.

Unit

Supply voltage

VCC

Operating range

After turn-on (1)

10.5

VCC(ON)

VCC

Turn-on threshold

13.5

16.5

VCC(OFF)

VCC

Turn-off threshold

10.5 11.5

12.5

VCC

Zener voltage

IZ = 2 mA

16.5 17.5

18.5

Supply current

IST-UP

VCC

Start-up current

Before turn-on, (VCC = 13 V)

130

200

µA

ICC

VCC

Operating supply current

No load

VCC

Quiescent current

IDLE mode, (2)

150

220

µA

Timing and oscillator

Output duty cycle

Run mode

49.5

50.5

tDEAD

Fixed dead time

(3)

1.24 1.42

1.6

µs

fRUN

HB run frequency

TAMB = 25° C

46.6

47.2

kHz

43.2

47.8

kHz

fPRE

Max programmable

preheating frequency

RFPRE = 24.9 kΩ

100

104

kHz

tPRE

Preheating time

RFPRE ≥ 196 Ω,

(1), (4), L6520

1.5

RFPRE ≥ 196 Ω,

(2), (4), L6521

0.8

fINS

HB instant start initial

frequency

FPRE connected to GND, (2)

kHz

dfIGN/dt

Ignition time frequency sweep

rate

(4), T

AMB = 25 °C

-2.75

kHz/ms

dfCCC/dt

Frequency sweep rate after

overcurrent

(4), T

AMB = 25 °C

-500

Hz/ms

IFPRE

FPRE

FPRE current reference

TAMB = 25 °C

200

202

204

µA

192

204

tON,min

HSD LSD Minimum half bridge on time

TAMB = 25 °C

µs

Half bridge drivers

VOL

HSD LSD Output low voltage

Iload = 300 mA

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