ISL97694AIRTZ-T Просмотр технического описания (PDF) - Intersil

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производитель

ISL97694AIRTZ-T

Single or Multiple Cell Li-ion Battery Powered 4-Channel and 6-Channel LED Drivers

Intersil 

ISL97692, ISL97693, ISL97694A

Pin Descriptions (Continued)

PIN

NAME

EN

VIN

FPWM

LX

PGND

FSW

OVP

CH1

CH2

CH3

CH4

NC

ISL97692

6

7

8

9

10

11

12

13

14

15

16

ISL97693

7

8

9

10

11

12

13

14

15

16

ISL97694A

8

9

10

11

12

14

15

16

17

18

19

6, 13

DESCRIPTION

Enable Input. High = Normal operation. Low = Shutdown.

Input Supply Voltage.

Tie FPWM to VIN to select Direct PWM mode. In Direct PWM mode, the channel outputs

follow the PWMI pin’s frequency and pulse width.

Connect resistor RFPWM from FPWM to GND to select PWM dimming frequency

adjustment. In this mode, the channel outputs follow the PWMI pin’s PWM duty, and

the LED PWM dimming frequency is set by the value of resistor RFPWM.

Input to boost switch.

Power ground (LX, CIN, and COUT Power return).

Switching Frequency Adjustment. The boost switching frequency is adjusted from

400kHz to 1.5MHz with resistor RFSW from FSW pin to GND.

Overvoltage protection input.

Channel 1 current sink and channel monitoring. Tie pin to GND if channel unused.

Channel 2 current sink and channel monitoring. Tie pin to GND if channel unused.

Channel 3 current sink and channel monitoring. Tie pin to GND if channel unused.

Channel 4 current sink and channel monitoring. Tie pin to GND if channel unused.

Not connected.

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART

MARKING

TEMP RANGE

(°C)

PACKAGE

(Pb-free)

PKG.

DWG. #

ISL97692IRTZ

7692

-40 to +85

16 Ld 3mmx3mmx0.75mm TQFN

L16.3x3D

ISL97693IRTZ

7693

-40 to +85

16 Ld 3mmx3mmx0.75mm TQFN

L16.3x3D

ISL97694AIRTZ

694A

-40 to +85

20 Ld 3mmx4mmx0.8mm TQFN

L20.3x4A

ISL97692IRTZ-EVALZ

Evaluation board

ISL97693IRTZ-EVALZ

Evaluation board

ISL97694AIRT-EVZ

Evaluation board

NOTES:

1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin

plate - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products

are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for ISL97692, ISL97693 ISL97694A. For more information on MSL please

see tech brief TB363.

8

FN7839.2

July 19, 2012

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