© 2005 Microchip Technology Inc.

DS21896B-page 7

MCP1630/MCP1630V

TEMPERATURE SPECIFICATIONS

Current Sense Input

Maximum Current Sense Signal

MCP1630

0.85

0.9

0.95

V

Set by maximum error amplifier

clamp voltage, divided by 3.

MCP1630

—12

25

ns

Maximum Current Sense Signal

MCP1630V

2.55

2.7

2.85

V

Maximum CS input range limited by

comparator input common mode

MCP1630V

—

17.5

35

ns

Minimum Duty Cycle

——

0

%

Current Sense Input Bias Current

—-0.1

—

µA

Internal Driver

—10

30

Ω

—7

30

Ω

—

5.9

18

ns

—

6.2

18

ns

Protection Features

Under Voltage Lockout

UVLO

2.7

—

3.0

V

UVLO

50

75

150

mV

Thermal Shutdown

—

150

—

°C

Thermal Shutdown Hysteresis

—18

—

°C

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Operating Junction Temperature Range

-40

—

+125

°C

Steady state

Storage Temperature Range

-65

—

+150

°C

Maximum Junction Temperature

—

—

+150

°C

Transient

Thermal Package Resistances

Thermal Resistance, 8L-DFN

(2 mm x 3 mm)

—

50.8

—

°C/W

Typical 4-layer board with two

interconnecting vias

Thermal Resistance, 8L-MSOP

—

208

—

°C/W

Typical 4-layer board

AC/DC CHARACTERISTICS (CONTINUED)

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note

1:

Capable of higher frequency operation depending on minimum and maximum duty cycles needed.

2:

External oscillator input (OSC IN) rise and fall times between 10 ns and 10 µs used for characterization testing. Signal

levels between 0.8V and 2.0V with rise and fall times measured between 10% and 90% of maximum and minimum

values. Not production tested.

3:

The reference input of the internal amplifier is capable of rail-to-rail operation.