Data Sheet

ADN8834

Rev. B | Page 7 of 27

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

A

B

C

D

E

1

2

3

4

5

VLIM/

SD

ILIM

VREF

VDD

IN2P

IN1P

OUT2

AGND

IN2N

EN/SY

OUT1

ADN8834

TOP VIEW

(BALLS ON THE BOTTOM SIDE)

IN1N

ITEC

VTEC

SFB

SW

LDR

PGNDL

PVIN

PGNDS

PGNDS

SW

PVIN

PGNDL

LDR

2.54mm

2.54mm

0.5mm

PITCH

Figure 2. WLCSP Pin Configuration (Top View)

2

1

3

4

5

6

18

17

16

15

14

13

VREF

VDD

ILIM

VLIM/SD

OUT2

IN2N

PGNDS

SW

PVINS

PVINL

LDR

PGNDL

ADN8834

TOP VIEW

(Not to Scale)

NOTES

1. EXPOSED PAD. SOLDER TO THE ANALOG

GROUND PLANE ON THE BOARD.

Figure 3. LFCSP Pin Configuration (Top View)

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

WLCSP

LFCSP

A1, A2

18, 19

PGNDL

Power Ground of the Linear TEC Controller.

20

TMPGD

Temperature Good Output.

A3

21

OUT1

Output of the Error Amplifier.

A4

23

IN1P

Noninverting Input of the Error Amplifier.

A5

24

IN2P

Noninverting Input of the Compensation Amplifier.

B1, B2

17

LDR

Output of the Linear TEC Controller.

B3

22

IN1N

Inverting Input of the Error Amplifier.

B4

1

IN2N

Inverting Input of the Compensation Amplifier.

B5

3

VLIM/SD

Voltage Limit/Shutdown. This pin sets the cooling and heating TEC voltage limits. When this pin

is pulled low, the device shuts down.

C1, C2

PVIN

Power Input for the TEC Controller.

16

PVINL

Power Input for the Linear TEC Driver.

15

PVINS

Power Input for the PWM TEC Driver.

C3

11

ITEC

TEC Current Output.

C4

2

OUT2

Output of the Compensation Amplifier.

C5

4

ILIM

Current Limit. This pin sets the TEC cooling and heating current limits.

D1, D2

14

SW

Switch Node Output of the PWM TEC Controller.

D3

9

VTEC

TEC Voltage Output.

D4

8

EN/SY

Enable/Synchronization. Set this pin high to enable the device. An external synchronization

clock input can be applied to this pin.

D5

5

VDD

Power for the Controller Circuits.

E1, E2

12, 13

PGNDS

Power Ground of the PWM TEC Controller.

E3

10

SFB

Feedback of the PWM TEC Controller Output.

E4

7

AGND

Signal Ground.

E5

6

VREF

2.5 V Reference Output.

0

EPAD

Exposed Pad. Solder to the analog ground plane on the board.