LT3587_15 Datasheet, PDF (3/24 Pages) Linear Technology – High Voltage Monolithic Inverter and Dual Boost

LT3587
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_VIN = 3.6V, V_EN/SS1 = V_EN/SS3 = V_VIN unless otherwise noted (Note 2, 3).
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Boost1
CAP1 Bias Current
FB1 Reference Voltage
V_CAP1 = 15V, V_OUT1 = Open
60
150
μA
l 1.19 1.22 1.25
V
V_OUT1 Output Voltage
SW1 Current Limit
R_FB1 = 1MΩ
l 14.25 15 15.75
V
800
990
mA
SW1 V_CESAT
SW1 Leakage Current
EN/SS1 for Full Inductor Current
EN/SS1 Shutdown Voltage Threshold
I_SW1 = 400mA
V_SW1 = 15V
V_FB1 = 1.1V, V_FB2 = 0.1V
200
mV
0.1
5
μA
2.5
V
l 0.2
V
EN/SS1 Pin Bias Current
V_OUT1 Current Limit
CAP1 to V_OUT1 On-Resistance (R_DISC1)
V_OUT1 Disconnect Leakage
Inverter
V_EN/SS1 = 0V
V_CAP1 = 15V
V_CAP1 = 15V, I_VOUT1= 50mA
V_VIN = V_CAP1 = 6V, V_VOUT1 = 0V
–0.5
–1
–1.5
μA
100
155
mA
5
8
Ω
0.1
1
μA
FB2 Reference Voltage
l –10
5
20
mV
Output Voltage
SW2 Current Limit
R_FB2 = 1MΩ
l –7.5
–8
–8.5
V
900 1090
mA
SW2 V_CESAT
SW2 Leakage Current
FB1 Threshold to Start Negative Channel
I_SW2 = 600mA
V_SW2 = 15V
Percent of Final Regulation Value
250
mV
0.1
5
μA
87
90
%
Boost3
CAP3 Bias Current
Boost3 Programmed Current
V_FB3 Reference Voltage
V_OUT3 Output Voltage
SW3 Current Limit
V_CAP3 = 15V, V_OUT3 = Open
R_IFB3 = 8.06kΩ
R_VFB3 = 1MΩ, I_VOUT3 = 20mA
R_VFB3 = 1MΩ, I_VOUT3 = 20mA
70
150
μA
l 18
20
22
mA
l 0.77
0.8
0.83
V
l 14
15
16
V
400
480
mA
SW3 V_CESAT
SW3 Leakage Current
EN/SS3 for Full Inductor Current
EN/SS3 Shutdown Voltage Threshold
I_SW3 = 200mA
V_SW3 = 15V
V_VFB3 = V_IFB3 = 0.6V
250
mV
0.1
5
μA
2
V
l 0.2
V
EN/SS3 Pin Bias Current
V_OUT3 Current Limit
CAP3 to V_OUT3 On Resistance (R_DISC3)
V_OUT3 Disconnect Leakage
CAP3 Pin Overvoltage Clamp
V_EN/SS3 = 0V
V_CAP3 = 15V, V_IFB3 = 0V
V_CAP3 = 15V, I_VOUT3 = 20mA
V_VIN = V_CAP3 = 6V, V_VOUT3 = 0V
–0.5
–1
–1.5
μA
70
110
mA
10
15
Ω
0.1
1
μA
27
29
31
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3: The LT3587 is guaranteed to meet specified performance from
0°C to 125°C. Specifications over the –40°C to 125°C operating range are
assured by design, characterization and correlation with statistical process
controls.
3587fc
3