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Table 4. Board Configuration
Jum Power
Device Function Placement Comment
per Configuration
Insert jumper to close load-current
JP1
recirculation path
DRV110 Board
N/A Inserted by default
DRV120 configuration
Insert jumper to connect OSC to 1-MΩ
JP2
trimmer
Insert jumper to select 10-kΩ series
JP3 7-48 VDC, 1 A
resistor R3
DRV110 Selection based on
Supply Insert jumper to select 200-kΩ series 100-240 VAC,
(leave open with JP4 supply voltage and
configuration resistor R2 1 A
DRV120) desired supply current.
Insert jumper to select 300-kΩ series 100-240 VAC,
JP5
resistor R1 1 A
Supply Insert jumper to bypass R1, R2, and R3
JP6 7-28 VDC, 1 A
configuration series resistors
DRV120
Inserted by default in
(leave open with JP7 Insert jumper to connect OUT to VCOIL
DRV120
Board
DRV110)
N/A
Insert jumper to bypass R10 series
configuration
JP8
resistor
DRV110 Enable DRV110 Insert jumper to disable the device,
JP9 N/A
DRV120 and DRV120 leave open to enable
3.3 Device Parameter Settings
The operating point and parameters of DRV110 and DRV120 are adjusted using components on the EVM
as shown in Table 5.
Table 5. Device Parameter Settings
Designator Description Comment
R3 10-kΩ trimmer, sets V
IN
current of DRV110 Resistance value increases clockwise
R4 1-MΩ trimmer, sets I
PEAK
Resistance value increases clockwise
R5 1-MΩ trimmer, sets I
HOLD
Resistance value increases clockwise
R6 1-MΩ trimmer, sets f
PWM
Resistance value increases clockwise
3.4 Test Points
Test points of the board are show in Table 6.
Table 6. Test Point Description
Designator Description
TP1 Current SENSE pin of DRV110
TP2 OUT pin
TP3 EN pin
TP4 KEEP pin
TP5 OSC pin
TP6 PEAK pin
TP7 HOLD pin
TP8 STATUS pin
TP9 GND pin
TP10 VLIMIT net
TP11 V
IN
pin
TP12 GND pin
5
SLVU686B–March 2012–Revised June 2012 DRV110 and DRV120 Evaluation Modules (EVM)
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