Rainbow-electronics ATA6824 Bedienungsanleitung PDF herunterladen (Seite 20)

4931C–AUTO–09/06

ATA6824 [Preliminary]

7.17 Fall time low-side driver

VBAT

= 13.5V

=5 nF

Lxf

0.5 µs

7.18 Rise time low-side driver t

Lxr

0.5 µs

7.19

Propagation delay time,

high-side driver from high

to low

Figure 5-4 on page 12

VBAT

= 13.5V

HxHL

0.5 µs

7.20

Propagation delay time,

high-side driver from low

to high

HxLH

0.5 + t

µs

7.21 Fall time high-side driver

VBAT

= 13.5V,

= 5 nF

Hxf

0.5 µs

7.22 Rise time high-side driver t

Hxr

0.5 µs

7.23 Cross conduction time

(8)

10 µs

7.24 External resistor R

5kΩ

7.25 External capacitor C

5nF

7.26

of t

switching

transistor

ONCC

100 Ω

7.27

Switching level of t

comparator

swtcc

0.653 ×

VCC

0.667 ×

VCC

0.68 ×

VCC

7.28

Short circuit detection

voltage

(9)

3.544.5V

7.29

Short circuit detection

time

(10)

51015ms

8 Diagnostic Outputs DG1, DG2, DG3

8.1 Low level output current V

= 0.4V

(6)

IL 4 mA

8.2 High level output current V

= VCC – 0.4V

(6)

IH 4 mA

10. Electrical Characteristics (Continued)

All parameters given are valid for 7V ≤ VBAT ≤ 18V and for –40°C ≤ϑambient ≤ 150°C unless stated otherwise.

No. Parameters Test Conditions Pin Symbol Min Typ Max Unit Type*

* Type: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

Notes: 1. EN, DIR, PWM = high

2. The use of X7R material is recommended

3. For higher values, stability at zero load is not guaranteed

4. Tested during qualification only

5. Value depends on T

OSC

; function tested with digital test pattern

6. Tested during characterization only

7. Supplied by charge pump

8. See section “Cross Conduction Time”

9. Voltage between source-drain of external switching transistors in active case

10. The short-circuit message will never be generated for switch-on time < t

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