CAT3647HV3-GT2 CATALYST SEMICONDUCTOR, CAT3647HV3-GT2 Datasheet - Page 3

• Manufacturer Part Number: CAT3647HV3-GT2
• Description: IC, LED DRIVER, CHARGE PUMP, TQFN-16
• Manufacturer: CATALYST SEMICONDUCTOR

Specifications of CAT3647HV3-GT2

• Led Driver Application: LCD Display Backlight, Digital Still Cameras
• No. Of Outputs: 3
• Output Current: 30mA
• Output Voltage: 7V
• Input Voltage: 2.5V To 5.5V
• Topology: Charge Pump
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) V
I
I
I
Symbol
I
R
I
LED-ACC
LED-ACC
LED-DEV
I
SC_MAX
LED
V
IN_MAX
V
QSHDN
R
F
V
T
EN/DIM
V
T
T
UVLO
RSET
V
OSC
OUT
HYS
HYS
I
DF
LO
SD
Q
HI
TH
Quiescent Current
Shutdown Current
LED Current Setting
LED Current Accuracy
LED Channel Matching
RSET Regulated Voltage
Output Resistance (open loop)
Charge Pump Frequency
Output short circuit Current Limit
Input Current Limit
1x to 1.33x or 1.33x to 1.5x or 1.5x to 2x
Transition Thresholds at any LED pin
1x Mode Transition Hysteresis
Mode Transition Filter Delay
EN/DIM Pin
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO) threshold
− Internal Pull-down Resistor
− Logic High Level
− Logic Low Level
Name
http://onsemi.com
1x mode, excluding load
1.33x mode, excluding load
1.5x mode, excluding load
2x mode, excluding load
V
RSET = 3.74 kW
RSET = 7.50 kW
(I
RSET = 4.99 kW
(I
1x mode
1.33x mode, V
1.5x mode, V
2x mode, V
1.33x and 2x mode
1.5x mode
V
V
LEDAVG
LED
EN
OUT
OUT
= 0 V
3
- I
< 0.5 V
> 1 V, 1x mode
LEDAVG
IN
– I
Conditions
= 3.6 V, EN = High, T
IN
NOMINAL
IN
= 2.4 V
IN
) / I
= 2.7 V
= 3 V
LEDAVG
) / I
NOMINAL
AMB
= 25°C
0.58
Min
0.8
1.3
1.6
1
±1.5
Typ
250
130
400
120
100
150
1.0
1.7
2.2
2.4
0.6
0.8
1.3
1.8
20
10
±2
10
50
20
5
5
1
Max
0.62
1.3
1.6
0.4
2.0
1
Units
MHz
mA
mA
mA
mA
mV
mV
kW
mA
ms
°C
°C
%
%
W
V
V
V
V