LT3482 查看數據表（PDF） - Linear Technology

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LT3482

90V Boost DC/DC Converter with APD Current Monitor

Linear Technology 

LT3482

ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 3V, V⎯S⎯H⎯D⎯N = 3V unless otherwise noted.

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

SHDN Voltage Low

0.4

V

SHDN Pin Bias Current

35

50

µA

fSET Voltage High

fSET Voltage Low

fSET Bias Current

CTRL to FB Offset

fSET = 2V

CTRL = 0.5V

1.5

V

0.4

V

22

40

µA

–5

2

10

mV

● –10

2

15

mV

APD Current Monitor Gain

Monitor Output Voltage Clamp

IAPD = 250nA, 10V ≤ MONIN ≤ 90V

IAPD = 2.5mA, 20V ≤ MONIN ≤ 90V

● 0.180 0.20 0.215

● 0.185 0.20 0.215

11.5

V

APD Monitor Voltage Drop

MONIN Pin Current Limit

MONIN – APD at IAPD = 1mA, MONIN = 90V

APD = 0V, MONIN = 40V

5

V

15

mA

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 reli-

ability and lifetime.

Note 2: The LT3482E is guaranteed to meet specified performance from

0°C to 85°C. Specifications over the –40°C to 85°C operating temperature

range are assured by design, characterization and correlation with statisti-

cal process controls. The LT3482I is guaranteed to meet performance

specifications over the –40°C to 125°C operating temperature range.

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3

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