HA17384HPS 데이터 시트보기 (PDF) - Renesas Electronics

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HA17384HPS

High Speed Current Mode PWM Control IC for Switching Power Supply

Renesas Electronics 

HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP

Electrical Characteristics (cont.)

• Current Sensing Part

(The condition is: Ta = 25°C, VIN = 15 V, CT = 3300 pF, RT = 10 kΩ without notice)

Item

Symbol Min Typ Max Unit

Test Condition

Note

Voltage gain

AVCS

2.85 3.00 3.15

V/V VFB = 0 V

1

Maximum sensing voltage VthCS

0.9

1.0

1.1

V

Power supply voltage

PSRR

–

70

–

dB 12 V ≤ VIN ≤ 25 V

2

rejection ratio

Input bias current

IBCS

–

–2

–10

µA VCS = 2 V

Current sensing

response time

tpd

50

100 150

ns Time from when VCS becomes 3

2 V to when output becomes

“L” (2 V)

Notes: 1. The gain this case is the ratio of error amplifier output change to the current-sensing threshold voltage

change.

2. Reference value for design.

3. Current sensing response time tpd is definded a shown in the figure 1.

Vth

VCS

VOUT

(PWM)

tpd

Figure 1 Definition of Current Sensing Response Time tpd

• PWM Output Part

Item

Symbol

Output low voltage 1

VOL1

Output low voltage 2

VOL2

Output high voltage 1

VOH1

Output high voltage 2

VOH2

Output low voltage at

standby mode

VOL STB

Rise time

tr

Fall time

tf

Maximum ON duty

Du max

Minimum ON duty

Du min

Note: 1. Pulse application test

Min Typ Max

–

0.7

1.5

–

1.5

2.2

13.0 13.5

–

12.0 13.3

–

–

0.8

1.1

–

80

150

–

70

130

94

96

100

–

–

0

Unit

Test Condition

V losink = 20 mA

V losink = 200 mA

V losource = –20 mA

V losource = –200 mA

V

VIN = 5 V,

losink = 1 mA

ns CL = 1000 pF

ns CL = 1000 pF

%

%

Note

1

1

Rev.3.00 Jun 15, 2005 page 8 of 28

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