DC1540A Linear Technology, DC1540A Datasheet - Page 10

• Manufacturer Part Number: DC1540A
• Description: LTC2978 Demoboard (includes DC1360A + DC1361A), Requires DC1613A
• Manufacturer: Linear Technology
• Series: -r

Specifications of DC1540A

• Design Resources: DC1540 Design File
• Main Purpose: Power Management, Power Supply Supervisor/Tracker/Sequencer
• Embedded: No
• Utilized Ic / Part: LTC2978
• Primary Attributes: Voltage Detector & Supervisor
• Secondary Attributes: -
• Kit Application Type: Power Management
• Application Sub Type: Power Supply Controller
• Features: Demonstration System For The LTC2978 Octal I2C / SMBus / PMBus Power Supply Monitor & Controller
• Lead Free Status / Rohs Status: Not applicable / Not applicable

Typical perForMance characTerisTics
500µV/DIV
LTC2978
0
2.690
2.678
2.698
2.696
2.694
2.692
2.688
2.686
2.684
2.682
2.680
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
–50
0
Voltage Buffered IDAC Offset
Voltage vs Temperature
Voltage Buffered IDAC Load
Regulation (Sourcing)
IDAC Voltage Buffer Transient
Response to 1LSB DAC Code
Change
CODE ‘h1FF
–35
–0.25
–20
–0.5
–5
TEMPERATURE (°C)
–0.75
CURRENT (mA)
10
2µs/DIV
25
–1 –1.25
–40°C
85°C
25°C
40 55
CODE ‘h200
–1.50 1.75
70
85
2978 G16
2978 G19
2978 G22
100
–2
10mV/DIV
0.1038
0.1036
0.1034
0.1032
0.1030
0.1028
0.1026
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
0
0
0
Voltage Buffered IDAC-INL
IDAC Voltage Buffer Load
Regulation (Sinking)
IDAC Voltage Buffer Soft Connect
Transient Response when
Transitioning from Hi-Z State to
ON State
100k SERIES RESISTANCE ON
CODE: ‘h1FF
0.25
HI-Z
200
0.5
0.75
CURRENT (mA)
400
–40°C
85°C
25°C
DAC CODE
500µs/DIV
1
600
1.25
CONNECTED
1.5 1.75
800
2978 G17
2978 G20
1000
2978 G23
2
10mV/DIV
–0.2
–0.4
–0.6
–0.8
–1.0
9.00
8.95
8.90
8.85
8.80
8.75
8.70
1.0
0.8
0.6
0.4
0.2
0
–50
0
Voltage Buffered IDAC DNL
IDAC Voltage Buffer Short-Circuit
Current vs Temperature
100k SERIES RESISTANCE ON
CODE: ‘h1FF
IDAC Voltage Buffer Soft Connect
Transient Response when
Transitioning from ON State to
Hi-Z State
–35
CONNECTED
200
–20
–5
TEMPERATURE (°C)
400
10
DAC CODE
500µs/DIV
25
600
40
55
HI-Z
800
70
85
2978 G18
2978 G21
2978fa
1000
2978 G24
100