HV9957K7-G Supertex, HV9957K7-G Datasheet - Page 5

• Manufacturer Part Number: HV9957K7-G
• Description: LED Lighting Drivers LED DRIVER 6 CHANNEL W/ FAULT PROTECTION
• Manufacturer: Supertex

Specifications of HV9957K7-G

• Product Category: LED Lighting Drivers
• Rohs: yes
• Input Voltage: 5 V
• Maximum Supply Current: 10 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-24
• Minimum Operating Temperature: - 40 C
• Factory Pack Quantity: 3000

Output Characteristics
Output Pulse
Abbreviations:
OVP
OCP
OLP
SLP
OTP
Over-Voltage Protection
Over-Current Protection
Open LED Protection
Shorted LED Protection
Over-Temperature Protection
Supertex inc.
(PWM Dimming)
+3
+2
+1
-1
-2
-3
0
0
Example curves shown for illustrative purposes only.
Normalization reference is the average current of all 6 channels at 900mV.
Limits apply to each channel individually.
0.4
FS
(I
ref
0
CH
1235 Bordeaux Drive, Sunnyvale, CA 94089
0.7 0.8
= 20mA nominal)
10%
V
DO
50%
PWM
FLT
PHD
SFM
RSA
range
1.1 1.2
t
RISE
Pulse Width Modulation
Fault bit or pin
Phased Dimming
Sync Frequency Multiplier
Redistribute start angles
(phased dimming)
90%
1.6
Time
V
t
OUT
PW
5
(V)
2.0
90%
scale change
4.0
t
FALL
D
50%
DIM
Tel: [phone]
= t
10%
PW
6.0
x f
DIM
CCM
DCM
VBST Boost converter output voltage
8.0
Continuous Conduction Mode
Discontinuous Conduction
Mode
www.supertex.com
10
CH1
CH2
CH3
CH4
CH5
CH6
HV9957