Cherry Semiconductor CS464YDWR16, CS464YDW16, CS464 Datasheet

Features

■ 40mA Driver

■ Stall Timing

■ Output Clamp

■ Overvoltage Shutdown

Package Options

CS464

Single Coil Predriver

CS464

Description

The CS464, Single Coil Predriver,
provides interface control for the
current through a primary igni­tion coil. Features include out­put current control, input nega-

tive edge filtering, stall timing
and over-voltage shutdown. The
IC is available as a bumped flip­chip or packaged in a 16 lead SO
wide package.

Application Diagram

Absolute Maximum Ratings

Lead Temperature Soldering

Reflow (SMD styles only)...........60 sec. max above 183¡C, 230¡C peak

Continuous Power Supply @ V

BAT

, -40¡C < TA< 55¡C .............5V to 24V

Continuous Power Supply @ V

BAT

, 55¡C < TA< 140¡C.............6V to 18V

Frequency .......................................................................................5 to 400Hz

Over the extended ranges of temperature, voltage, and frequency not
covered by normal operating conditions, low frequency and run related
functions are allowed an additional 20% on specification limits. The
degradation shall not be permanent, and upon returning to normal
operating conditions shall be within the specification limits. Non-nor­mal ÒRun ModeÓ operation is 45 hours cumulative life not exceeding a
continuous run time of 10 minutes with a 10 minute ÒOffÓ time follow­ing each successive operating cycle.

MB

NC

NC

CR

IN+

NC

NC

Gnd

CS

S

NC

OUT

IC

D

NC

V

CC

Flip-Chip

1

16 Lead SO Wide

Rev. 3/1/99

Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: [phone] Fax: [phone]

Email: [e-mail]

Web Site: www.cherry-semi.com

A Company

¨

1

12V

V

BAT

CS

0.47mF
50V

RIC1
200

RIC2

4k

Adjust for 6.5A Coil Current

RS156RS2

N1

N2

0.05W, 5W

MB

CS

NC

NC

CR

0.1mF
50V

CR

IN+

NC

NC

Gnd

RIN+

V

IN

10k

RMB

10.7k

0V

40Hz

CS464

OUT

S

NC

IC

D

NC

V

CC

ZD

18V

CV

0.1mF

CC

RD, 55W, 5W

, 330

RV

CC

CS464

2

Electrical Characteristics: -30¡C ² TA² 125¡C; -30¡C < TJ< 125¡C; All Parameters after VCCPower-up > 100ms;

V

BAT

= 14V unless otherwise specified.

16 Lead SO Wide Flip Chip

PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT

■ Input, Current, Delay

Positive Threshold V

BAT

= 6V 56.2 66 56.2 66 % of V

BAT

V

BAT

= 16V 56.2 66 56.2 66 % of V

BAT

Hysteresis V

BAT

= 6V 8 20.2 9 20.2 % of V

BAT

V

BAT

= 16V 8 20.2 9 20.2 % of V

BAT

I

CC

V

BAT

= 6V 1 2.75 4.5 1 2.75 4.5 mA

V

BAT

= 16V 5 12 19 5 12 19 mA

Input Impedance @10µA 70 170 400 k½

@0.1mA 70 170 400 k½

IC Process Delay 15 15 µs

■ Output

Output Current V

BAT

= 6V, 2.1V output load 40 52.5 65 40 52.5 65 mA

Output SOA Current V

BAT

= 22V (Note 1) 40 52.5 65 40 52.5 65 mA

Output Leakage Current V

BAT

= 25V (Note 1) 0 100 0 100 µA
Output Clamp Voltage @ 10mA 13.7 15.35 17 13.7 15.35 17 V
Output Clamp Impedance @ 10mA 10 42.5 80 10 42.5 80 ½

■ Regulation Voltage

VS Regulation Voltage V

BAT

= 7.8V 165 200 235 165 200 235 mV
VS Supply Rejection V

BAT

= 6V ~ 22V (Note 1) 0 0 14 0 0 14 %

V

BAT

= 7.8V ~ 22V (Note 1) 0 0 13 0 0 13 %

■ Stall & Protection

Stall Shutdown VS V

BAT

= 6V -5 0 5 -1 0 1 mV
Stall Shutdown Frequency V

BAT

= 14V .4 .4 Hz

V

BAT

= 5.5V 1.4 1.47 1.4 1.47 Hz
Stall Shutdown Time V

BAT

= 6V 19 28 37 19 28 37 ms
Stall to Spark Output Delay 4.6 6.7 9.5 4.6 6.7 9.5 ms
I/O Signal Relationship @ 80% Input 79.0 80.5 82.0 79.0 80.0 81.0 %

@ 50% Input 49.0 50.5 52.0 49.0 50.0 51.0 %

@ 30% Input 29.0 30.5 32.0 29.0 30.0 31.0 %
Battery Interrupt Time 25 750 25 750 ms
Battery Interrupt Recovery Time @ 200Hz 800 800 ms
High Voltage Shutdown 25 28 32 25 28 31 V
High Frequency Cut off 1 2.5 5 1 2.5 5 kHz
Negative Threshold V

BAT

= 6V 28 36 30 36 % of V

BAT

V

BAT

= 16V 28 36 30 36 % of V

BAT

Note 1: Voltage extremes are for testing purposes only. Part in continuous operation should conform to absolute max
table.