DC491A Datasheet LTC1923EUH#PBF, LTC1923EGN#PBF, LTC1923EGN#TRPBF | P25-P27

LTC1923

1923f

Figure 15. Higher Voltage Applications with the LTC1923

PLLLPF

SLEW

SDSYNCB

CNTRL

EAOUT

AGND

LIM

SET

FAULT

THRM

H/C

TEC

REF

PDRVB

NDRVB

PGND

NDRVA

PDRVA

–

TEC

–

LTC1923

1µF

IN1

GND1

IN2

GND2

CC1

OUT1

CC2

OUT2

LTC1693-1

IN1

GND1

IN2

GND2

CC1

OUT1

CC2

OUT2

LTC1693-1

4.7µF

12V

10µF47µF

0.1µF

4.7µF

0.1µF

TEC

1923 F15

APPLICATIO S I FOR ATIO

WUUU

LTC1923

1923f

PLLLPF

SLEW

SDSYNC

CNTRL

EAOUT

AGND

LIM

SET

FAULT

THRM

H/C

TEC

REF

PDRVB

NDRVB

PGND

NDRVA

PDRVA

–

TEC

–

LTC1923EGN

–

LTC2053IMS8

LTC1658IMS8

14 BIT

REF

OUT

C5 330pF

C6 1µF

L1 10µH

TEC–TEC+

L2 10µH

R15

0.1Ω

0.5W 1%

C2, C3, C4, C7, C8: AVX 0603YC104KAT1A (X7R, 16V)

C5: AVX 06035A331KAT1A (NPO, 50V)

C6, C14, C18, C19: AVX 06036D105KAT2A (X5R, 6.3V)

C9: TAIYO YUDEN JMK316BJ106ML-T (X7R, 6.3V)

C10, C11: PANASONIC ECP-U1C104MA5 (SM FILM, 16V)

C13: AVX TAJA475M020R (TANTALUM, 20V)

C15, C16, C17: TAIYO YUDEN JMK325BJ226MM-T (X7R, 6.3V)

D3 (OPTIONAL): PANASONIC LN1251-C-TR (RED)

D4 (OPTIONAL): PANASONIC LN1851-C-TR (ORANGE)

D5 (OPTIONAL): PANASONIC LN1351-C-TR (GREEN)

L1, L2: SUMIDA CDRH6D28-100NC

Q1, Q2: SILICONIX Si9801DY

Q3, Q4, Q5, Q6 (OPTIONAL): 2N7002

R3: KOA RN73T2AT1002B O.1%

R15: KOA SR73H2ER100F

ALL RESISTORS 5% TOLERANCE UNLESS NOTED

R10, R13, C13 MAY NEED TO BE CHANGED TO ACHIEVE DESIRED LOOP RESONSE

1923 TA02

C14

1µF

R14

1k 1%

R1 10k

GNDD

OUT

CLK

CS/LD

CLK

CS/LD

C18 1µF

SET

C15

22µF

6.3V

0.1µF

C17

22µF

6.3V

TEC

SET

Si9801DY

10k 1%

R13

100k 1%

R20

100k

R4 82k

C13

4.7µF

20V

10k

NTC+

RT1

THERMISTOR

10k NTC

NTC–

0.1µF

Si9801DY

2N7002

C16

22µF 6.3V

C10

0.1µF

SM FILM

C19

1µF

SET

9.09K

R10

10M

0.1µF

C11

0.1µF

FILM

R20

100k

2N7002

R19

200Ω

FAULT

LED (RED)

R23

100k

2N7002

R26

100k

2N7002

OPTIONAL FOR VISUAL HEATING/COOLING INDICATION

R27

200Ω

COOL

LED (GRN)

R25

200Ω

HEAT

LED (ORN)

OPTIONAL FOR VISUAL FAULT INDICATION

10k

0.1%

10µF

6.3V

Laser Temperature Control Loop Achieving Set Point Stability of 0.01°C

TYPICAL APPLICATIO

LTC1923

1923f

PACKAGE DESCRIPTIO

GN Package

28-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

0.386 – 0.393*

(9.804 – 9.982)

GN28 (SSOP) 1098

* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

8 9 10 11 12

0.229 – 0.244

(5.817 – 6.198)

0.150 – 0.157**

(3.810 – 3.988)

202122232425262728

13 14

0.016 – 0.050

(0.406 – 1.270)

0.015

± 0.004

(0.38 ± 0.10)

× 45°

0° – 8° TYP

0.0075 – 0.0098

(0.191 – 0.249)

0.053 – 0.069

(1.351 – 1.748)

0.008 – 0.012

(0.203 – 0.305)

0.004 – 0.009

(0.102 – 0.249)

0.0250

(0.635)

BSC

0.033

(0.838)

REF

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P28

DC491A

Mfr. #:

Buy DC491A

Manufacturer:

Analog Devices Inc.

Description:

Power Management IC Development Tools LTC1923EUH - TEC Temperature Controller,

Lifecycle:

New from this manufacturer.

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DC491A

DC491A

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