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Application Note 1767

3

AN1767.0

June 27, 2012

Schematic

VIN

1

EN1

2

EN2

3

CBYP

4

CPOR

5

VO1

10

VO2

9

POR2

8

POR1

7

GND

6

U1

ISL9000

B1

B4

R1

100K

R2
100K

C1
100uF

C2

1uF

C3
0.01uF

J11
SCOPE JACK

J12
SCOPE JACK

B2

B3

1

2

J2

CON2

J10
JMP2

J9

JMP2

C4

0.01uF

1

2

3

4

5

6

J14
CON6

1

J6
CON1

1

J8
CON1

1

J5
CON1

J4

JMP4

J3

JMP4

GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

JP1
HEADER 8X2

1

J1

CON1

1

J7

CON1

B5

C5
1uF

C6
1uF

1

J15
CON1

1

J16

CON1

1
2
3
4
5

J13
CON5

VO1 - Kelvin
VO1 - Power
GND
VO2 - Power
VO2 - Kelvin

FIGURE 1. ISL9000A EVALUATION BOARD (REV B) SCHEMATIC

Summary of Contents for ISL9000A

Page 1: ... ENx and HI on J3 or J4 In this case the shunt between ENx and LOW is not needed If an external enable signal that drives both high and low is used to enable the LDO outputs both shunts can be removed from ENx A jumper J10 connects the CPOR input to a 10nF capacitor for POR timing The jumper can be removed and replaced by a different capacitor to ground for different power on timing requirements T...

Page 2: ...cks but at higher currents these won t reflect the output voltage as accurately as the kelvin connections Connect the negative leads to GND J13 3 To get the best representation of the IC output voltage under all output loading conditions add a ground terminal to the GNDk pad and connect the meter ground leads there Step 5 Connect a third voltmeter to the input This can be connected to the J2 termi...

Page 3: ...1uF J11 SCOPE JACK J12 SCOPE JACK B2 B3 1 2 J2 CON2 J10 JMP2 J9 JMP2 C4 0 01uF 1 2 3 4 5 6 J14 CON6 1 J6 CON1 1 J8 CON1 1 J5 CON1 J4 JMP4 J3 JMP4 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 JP1 HEADER 8X2 1 J1 CON1 1 J7 CON1 B5 C5 1uF C6 1uF 1 J15 CON1 1 J16 CON1 1 2 3 4 5 J13 CON5 VO1 Kelvin VO1 Power GND VO2 Power VO2 Kelvin FIGURE 1 ISL9000A EVALUATION BOARD REV B SCHEMATIC ...

Page 4: ...206 1µF 25V 10 X7R ROHS C5 C6 Panasonic ECJ 3YB1E105K 1206 or 1210 capacitor 5 2 RES SMD 0603 100kΩ 1 10W 1 ROHS R1 R2 Panasonic ERJ 3EKF1003V 0603 resistor 6 1 CAP TANTALUM SMD 100µF 16V 20 ROHS C1 KEMET T491D107M016AS 7 4 CON1 J1 J5 J7 J16 Keystone 5010 8 3 CON1 J6 J8 J15 Keystone 5016 9 1 CON2 J2 Molex 22 23 2021 10 1 CON5 J13 Molex 22 23 2051 11 1 JMP2 J10 Molex 22 28 4020 12 2 JMP4 J3 J4 Mole...

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