MAX5070 datasheet(6/22 Pages) MAXIM

Part #	MAX5070

Description	High-Performance, Single-Ended, Current-Mode PWM Controllers

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Performance, Single-Ended, Current-Mode

PWM Controllers

6

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +15V, RT = 10kΩ, CT = 3.3nF, VVREF = OPEN, CVREF = 0.1µF, COMP = OPEN, VFB = 2V, CS = GND, TA = -40°C to +125°C,

unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SYNC Leakage Current

ISYNC

VSYNC = 0V

0.01

0.1

µA

ADV_CLK (MAX5071C only)

ADV_CLK High Voltage

VADV_CLKH

IADV_CLK = 10mA source

2.4

3

V

ADV_CLK Low Voltage

VADV_CLKL

IADV_CLK = 10mA sink

0.4

V

ADV_CLK Output Pulse Width

tPULSE

85

ns

ADV_CLK Rising Edge to OUT

Rising Edge

tADV_CLK

110

ns

ADV_CLK Source and Sink

Current

IADV_CLK

10

mA

Note 1: All devices are 100% tested at +25°C. All limits over temperature are guaranteed by design, not production tested.

Note 2: Guaranteed by design, not production tested.

Note 3: Parameter measured at trip point of latch with VFB = 0V (MAX5070A/MAX5070B only).

Note 4: Gain is defined as A = ∆VCOMP/∆VCS, 0 ≤ VCS ≤ 0.8V.

Note 5: Output Frequency equals oscillator frequency for MAX5070A/MAX5071A. Output frequency is one-half oscillator frequency

for MAX5070B/MAX5071B/MAX5071C.

BOOTSTRAP UVLO vs. TEMPERATURE

TEMPERATURE (°C)

110

95

65 80

-10 5

20 35 50

-25

6

7

8

9

10

11

12

13

14

15

16

17

5

-40

125

HYSTERESIS

VCC FALLING

VCC RISING

STARTUP CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

110

95

65 80

-10 5

20 35 50

-25

29

30

31

32

33

34

35

36

37

38

39

40

28

-40

125

2.0

2.5

5.5

3.5

3.0

4.0

4.5

5.0

6.0

-40

-10 5

20

-25

35 50

95

80

110

65

125

OPERATING SUPPLY CURRENT (ICC)

vs. TEMPERATURE AFTER STARTUP

(fOSC = fSW = 250kHz)

TEMPERATURE (°C)

CT = 100pF

Typical Operating Characteristics

(VCC = 15V, TA = +25°C, unless otherwise noted.)

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